loncom/homework/grades.pm - diff

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Diff for /loncom/homework/grades.pm between versions 1.121 and 1.769

-version 1.121, 2003/07/21 13:32:49
+version 1.769, 2020/05/08 15:12:34
  Line 25
  #
  # http://www.lon-capa.org/
  #
- # 2/9,2/13 Guy Albertelli
- # 6/8 Gerd Kortemeyer
- # 7/26 H.K. Ng
- # 8/20 Gerd Kortemeyer
- # Year 2002
- # June-August H.K. Ng
- # Year 2003
- # February, March H.K. Ng
- #
  package Apache::grades;
  use strict;
- Line 44  use Apache::loncommon;
+ Line 37  use Apache::loncommon;
  use Apache::lonhtmlcommon;
  use Apache::lonnavmaps;
  use Apache::lonhomework;
+ use Apache::lonpickcode;
  use Apache::loncoursedata;
- use Apache::lonmsg qw(:user_normal_msg);
+ use Apache::lonmsg();
- use Apache::Constants qw(:common);
+ use Apache::Constants qw(:common :http);
+ use Apache::lonlocal;
+ use Apache::lonenc;
+ use Apache::lonstathelpers;
+ use Apache::lonquickgrades;
+ use Apache::bridgetask();
+ use Apache::lontexconvert();
  use String::Similarity;
+ use HTML::Parser();
+ use File::MMagic;
+ use LONCAPA;
+ use POSIX qw(floor);
- my %oldessays=();
  my %perm=();
+ my %old_essays=();
- # ----- These first few routines are general use routines.----
+ #  These variables are used to recover from ssi errors
+ my $ssi_retries = 5;
+ my $ssi_error;
+ my $ssi_error_resource;
+ my $ssi_error_message;
+ sub ssi_with_retries {
+     my ($resource, $retries, %form) = @_;
+     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
+     if ($response->is_error) {
+ 	$ssi_error          = 1;
+ 	$ssi_error_resource = $resource;
+ 	$ssi_error_message  = $response->code . " " . $response->message;
+     }
+     return $content;
+ }
+ #
+ #  Prodcuces an ssi retry failure error message to the user:
  #
- # --- Retrieve the parts that matches stores_\d+ from the metadata file.---
+ sub ssi_print_error {
+     my ($r) = @_;
+     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
+     $r->print('
+ <br />
+ <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
+ <p>
+ '.&mt('Unable to retrieve a resource from a server:').'<br />
+ '.&mt('Resource:').' '.$ssi_error_resource.'<br />
+ '.&mt('Error:').' '.$ssi_error_message.'
+ </p>
+ <p>'.
+ &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
+ &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
+ '</p>');
+     return;
+ }
+ #
+ # --- Retrieve the parts from the metadata file.---
+ # Returns an array of everything that the resources stores away
+ #
  sub getpartlist {
-     my ($url) = @_;
+     my ($symb,$errorref) = @_;
-     my @parts =();
-     my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
+     my $navmap   = Apache::lonnavmaps::navmap->new();
-     foreach my $key (@metakeys) {
+     unless (ref($navmap)) {
- 	if ( $key =~ m/stores_(\w+)_.*/) {
+         if (ref($errorref)) {
- 	    push(@parts,$key);
+             $$errorref = 'navmap';
- 	}
+             return;
-     }
+         }
-     return @parts;
+     }
- }
+     my $res      = $navmap->getBySymb($symb);
+     my $partlist = $res->parts();
- # --- Get the symbolic name of a problem and the url
+     my $url      = $res->src();
- sub get_symb_and_url {
+     my $toolsymb;
-     my ($request) = @_;
+     if ($url =~ /ext\.tool$/) {
-     (my $url=$ENV{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+         $toolsymb = $symb;
-     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
+     }
-     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
+     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys',$toolsymb));
-     return ($symb,$url);
- }
+     my @stores;
+     foreach my $part (@{ $partlist }) {
- # --- Retrieve the fullname for a user. Return lastname, first middle ---
+ 	foreach my $key (@metakeys) {
- # --- Generation is attached next to the lastname if it exists. ---
+ 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
- sub get_fullname {
+ 	}
-     my ($uname,$udom) = @_;
+     }
-     my %name=&Apache::lonnet::get('environment', ['lastname','generation',
+     return @stores;
- 						  'firstname','middlename'],
+ }
-                                   $udom,$uname);
-     my $fullname;
+ #--- Format fullname, username:domain if different for display
-     my ($tmp) = keys(%name);
+ #--- Use anywhere where the student names are listed
-     if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
+ sub nameUserString {
-         $fullname = &Apache::loncoursedata::ProcessFullName
+     my ($type,$fullname,$uname,$udom) = @_;
-             (@name{qw/lastname generation firstname middlename/});
+     if ($type eq 'header') {
+ 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
      } else {
-         &Apache::lonnet::logthis('grades.pm: no name data for '.$uname.
+ 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
-                                  '@'.$udom.':'.$tmp);
+ 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
      }
-     return $fullname;
  }
  #--- Get the partlist and the response type for a given problem. ---
  #--- Indicate if a response type is coded handgraded or not. ---
+ #--- Sets response_error pointer to "1" if navmaps object broken ---
  sub response_type {
-     my ($url) = shift;
+     my ($symb,$response_error) = @_;
-     my $allkeys = &Apache::lonnet::metadata($url,'keys');
-     my %seen = ();
+     my $navmap = Apache::lonnavmaps::navmap->new();
-     my (@partlist,%handgrade);
+     unless (ref($navmap)) {
-     foreach (split(/,/,&Apache::lonnet::metadata($url,'packages'))) {
+         if (ref($response_error)) {
- 	if (/^\w+response_\w+.*/) {
+             $$response_error = 1;
- 	    my ($responsetype,$part) = split(/_/,$_,2);
+         }
- 	    my ($partid,$respid) = split(/_/,$part);
+         return;
- 	    $responsetype =~ s/response$//; # make it compatible w/ navmaps - should move to that!!
- 	    $handgrade{$part} = $responsetype.':'.($allkeys =~ /parameter_$part\_handgrade/ ? 'yes' : 'no');
- 	    next if ($seen{$partid} > 0);
- 	    $seen{$partid}++;
- 	    push @partlist,$partid;
- 	}
-     }
-     return \@partlist,\%handgrade;
- }
- #--- Show resource title
- #--- and parts and response type
- sub showResourceInfo {
-     my ($url,$probTitle) = @_;
-     my $result ='<table border="0">'.
- 	'<tr><td colspan=3><font size=+1><b>Current Resource: </b>'.$probTitle.'</font></td></tr>'."\n";
-     my ($partlist,$handgrade) = &response_type($url);
-     my ($resptype,$hdgrade)=('','no');
-     for (sort keys(%$handgrade)) {
- 	my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
- 	$resptype = $responsetype;
- 	$hdgrade = $handgrade if ($handgrade eq 'yes');
- 	$result.='<tr><td><b>Part </b>'.(split(/_/))[0].'</td>'.
- 	    '<td><b>Type: </b>'.$responsetype.'</td></tr>';
- #	    '<td><b>Handgrade: </b>'.$handgrade.'</td></tr>';
      }
-     $result.='</table>'."\n";
+     my $res = $navmap->getBySymb($symb);
-     return $result,$resptype,$hdgrade,$partlist,$handgrade;
+     unless (ref($res)) {
+         $$response_error = 1;
+         return;
+     }
+     my $partlist = $res->parts();
+     my %vPart =
+ 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
+     my (%response_types,%handgrade);
+     foreach my $part (@{ $partlist }) {
+ 	next if (%vPart && !exists($vPart{$part}));
+ 	my @types = $res->responseType($part);
+ 	my @ids = $res->responseIds($part);
+ 	for (my $i=0; $i < scalar(@ids); $i++) {
+ 	    $response_types{$part}{$ids[$i]} = $types[$i];
+ 	    $handgrade{$part.'_'.$ids[$i]} =
+ 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
+ 				     '.handgrade',$symb);
+ 	}
+     }
+     return ($partlist,\%handgrade,\%response_types);
+ }
+ sub flatten_responseType {
+     my ($responseType) = @_;
+     my @part_response_id =
+ 	map {
+ 	    my $part = $_;
+ 	    map {
+ 		[$part,$_]
+ 		} sort(keys(%{ $responseType->{$part} }));
+ 	} sort(keys(%$responseType));
+     return @part_response_id;
+ }
+ sub get_display_part {
+     my ($partID,$symb)=@_;
+     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
+     if (defined($display) and $display ne '') {
+         $display.= ' (<span class="LC_internal_info">'
+                   .&mt('Part ID: [_1]',$partID).'</span>)';
+     } else {
+ 	$display=$partID;
+     }
+     return $display;
+ }
+ sub reset_caches {
+     &reset_analyze_cache();
+     &reset_perm();
+     &reset_old_essays();
+ }
+ {
+     my %analyze_cache;
+     my %analyze_cache_formkeys;
+     sub reset_analyze_cache {
+ 	undef(%analyze_cache);
+         undef(%analyze_cache_formkeys);
+     }
+     sub get_analyze {
+ 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
+ 	my $key = "$symb\0$uname\0$udom";
+         if ($type eq 'randomizetry') {
+             if ($trial ne '') {
+                 $key .= "\0".$trial;
+             }
+         }
+ 	if (exists($analyze_cache{$key})) {
+             my $getupdate = 0;
+             if (ref($add_to_hash) eq 'HASH') {
+                 foreach my $item (keys(%{$add_to_hash})) {
+                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
+                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
+                             $getupdate = 1;
+                             last;
+                         }
+                     } else {
+                         $getupdate = 1;
+                     }
+                 }
+             }
+             if (!$getupdate) {
+                 return $analyze_cache{$key};
+             }
+         }
+ 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
+ 	$url=&Apache::lonnet::clutter($url);
+         my %form = ('grade_target'      => 'analyze',
+                     'grade_domain'      => $udom,
+                     'grade_symb'        => $symb,
+                     'grade_courseid'    =>  $env{'request.course.id'},
+                     'grade_username'    => $uname,
+                     'grade_noincrement' => $no_increment);
+         if ($bubbles_per_row ne '') {
+             $form{'bubbles_per_row'} = $bubbles_per_row;
+         }
+         if ($type eq 'randomizetry') {
+             $form{'grade_questiontype'} = $type;
+             if ($rndseed ne '') {
+                 $form{'grade_rndseed'} = $rndseed;
+             }
+         }
+         if (ref($add_to_hash)) {
+             %form = (%form,%{$add_to_hash});
+         }
+ 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
+ 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
+ 	my %analyze=&Apache::lonnet::str2hash($subresult);
+         if (ref($add_to_hash) eq 'HASH') {
+             $analyze_cache_formkeys{$key} = $add_to_hash;
+         } else {
+             $analyze_cache_formkeys{$key} = {};
+         }
+ 	return $analyze_cache{$key} = \%analyze;
+     }
+     sub get_order {
+ 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
+ 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
+ 	return $analyze->{"$partid.$respid.shown"};
+     }
+     sub get_radiobutton_correct_foil {
+ 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
+ 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
+         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
+         if (ref($foils) eq 'ARRAY') {
+ 	    foreach my $foil (@{$foils}) {
+ 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
+ 		    return $foil;
+ 	        }
+ 	    }
+ 	}
+     }
+     sub scantron_partids_tograde {
+         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row,$scancode) = @_;
+         my (%analysis,@parts);
+         if (ref($resource)) {
+             my $symb = $resource->symb();
+             my $add_to_form;
+             if ($check_for_randomlist) {
+                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
+             }
+             if ($scancode) {
+                 if (ref($add_to_form) eq 'HASH') {
+                     $add_to_form->{'code_for_randomlist'} = $scancode;
+                 } else {
+                     $add_to_form = { 'code_for_randomlist' => $scancode,};
+                 }
+             }
+             my $analyze =
+                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
+                              undef,undef,undef,$bubbles_per_row);
+             if (ref($analyze) eq 'HASH') {
+                 %analysis = %{$analyze};
+             }
+             if (ref($analysis{'parts'}) eq 'ARRAY') {
+                 foreach my $part (@{$analysis{'parts'}}) {
+                     my ($id,$respid) = split(/\./,$part);
+                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
+                         push(@parts,$part);
+                     }
+                 }
+             }
+         }
+         return (\%analysis,\@parts);
+     }
  }
  #--- Clean response type for display
- #--- Currently filters option response type only.
+ #--- Currently filters option/rank/radiobutton/match/essay/Task
+ #        response types only.
  sub cleanRecord {
-     my ($answer,$response) = @_;
+     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
-     if ($response eq 'option') {
+ 	$uname,$udom,$type,$trial,$rndseed) = @_;
- 	my (@IDs,@ans);
+     my $grayFont = '<span class="LC_internal_info">';
- 	foreach (split(/\&/,&Apache::lonnet::unescape($answer))) {
+     if ($response =~ /^(option|rank)$/) {
- 	    my ($optionID,$ans) = split(/=/);
+ 	my %answer=&Apache::lonnet::str2hash($answer);
- 	    push @IDs,$optionID.'</font>';
+         my @answer = %answer;
- 	    push @ans,$ans;
+         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
- 	}
+ 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
- 	my $grayFont = '<font color="#999999">';
+ 	my ($toprow,$bottomrow);
- 	return '<table border="1">'.
+ 	foreach my $foil (@$order) {
- 	    '<tr valign="top"><td>Answer</td><td>'.
+ 	    if ($grading{$foil} == 1) {
- 	    (join '</td><td>',@ans).'</td></tr>'.
+ 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
- 	    '<tr valign="top"><td>'.$grayFont.'Option ID</font></td><td>'.$grayFont.
+ 	    } else {
- 	    (join '</td><td>'.$grayFont,@IDs).'</font></td></tr>'.
+ 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
- 	    '</table>';
+ 	    }
+ 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
+ 	}
+ 	return '<blockquote><table border="1">'.
+ 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
+ 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
+ 	    $bottomrow.'</tr></table></blockquote>';
+     } elsif ($response eq 'match') {
+ 	my %answer=&Apache::lonnet::str2hash($answer);
+         my @answer = %answer;
+         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
+ 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
+ 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
+ 	my ($toprow,$middlerow,$bottomrow);
+ 	foreach my $foil (@$order) {
+ 	    my $item=shift(@items);
+ 	    if ($grading{$foil} == 1) {
+ 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
+ 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
+ 	    } else {
+ 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
+ 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
+ 	    }
+ 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
+ 	}
+ 	return '<blockquote><table border="1">'.
+ 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
+ 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
+ 	    $middlerow.'</tr>'.
+ 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
+ 	    $bottomrow.'</tr></table></blockquote>';
+     } elsif ($response eq 'radiobutton') {
+ 	my %answer=&Apache::lonnet::str2hash($answer);
+         my @answer = %answer;
+         %answer = map {&HTML::Entities::encode($_, '"<>&')}  @answer;
+ 	my ($toprow,$bottomrow);
+ 	my $correct =
+ 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
+ 	foreach my $foil (@$order) {
+ 	    if (exists($answer{$foil})) {
+ 		if ($foil eq $correct) {
+ 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
+ 		} else {
+ 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
+ 		}
+ 	    } else {
+ 		$toprow.='<td>'.&mt('false').'</td>';
+ 	    }
+ 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
+ 	}
+ 	return '<blockquote><table border="1">'.
+ 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
+ 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
+ 	    $bottomrow.'</tr></table></blockquote>';
+     } elsif ($response eq 'essay') {
+ 	if (! exists ($env{'form.'.$symb})) {
+ 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
+ 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
+ 						  $env{'course.'.$env{'request.course.id'}.'.num'});
+ 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
+ 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
+ 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
+ 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
+ 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
+ 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
+ 	}
+         $answer = &Apache::lontexconvert::msgtexconverted($answer);
+ 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
+     } elsif ( $response eq 'organic') {
+         my $result=&mt('Smile representation: [_1]',
+                            '"<tt>'.&HTML::Entities::encode($answer, '"<>&').'</tt>"');
+ 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
+ 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
+ 	return $result;
+     } elsif ( $response eq 'Task') {
+ 	if ( $answer eq 'SUBMITTED') {
+ 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
+ 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
+ 	    return $result;
+ 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
+ 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
+ 			       keys(%{$record}));
+ 	    return join('<br />',($version,@matches));
+ 	} else {
+ 	    my $result =
+ 		'<p>'
+ 		.&mt('Overall result: [_1]',
+ 		     $record->{$version."resource.$respid.$partid.status"})
+ 		.'</p>';
+ 	    $result .= '<ul>';
+ 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
+ 			     keys(%{$record}));
+ 	    foreach my $grade (sort(@grade)) {
+ 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
+ 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
+ 				     $dim, $record->{$grade}).
+ 			  '</li>';
+ 	    }
+ 	    $result.='</ul>';
+ 	    return $result;
+ 	}
+     } elsif ( $response =~ m/(?:numerical|formula|custom)/) {
+         # Respect multiple input fields, see Bug #5409
+ 	$answer =
+ 	    &Apache::loncommon::format_previous_attempt_value('submission',
+ 							      $answer);
+ 	return $answer;
      }
-     return $answer;
+     return &HTML::Entities::encode($answer, '"<>&');
  }
  #-- A couple of common js functions
  sub commonJSfunctions {
      my $request = shift;
-     $request->print(<<COMMONJSFUNCTIONS);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<COMMONJSFUNCTIONS));
- <script type="text/javascript" language="javascript">
      function radioSelection(radioButton) {
  	var selection=null;
  	if (radioButton.length > 1) {
- Line 186  sub commonJSfunctions {
+ Line 495  sub commonJSfunctions {
  		}
  	    }
  	} else {
- 	    if (selectOne.selected) return selectOne.value;
+             // only one value it must be the selected one
+ 	    return selectOne.value;
  	}
      }
- </script>
  COMMONJSFUNCTIONS
  }
  #--- Dumps the class list with usernames,list of sections,
  #--- section, ids and fullnames for each user.
  sub getclasslist {
-     my ($getsec,$filterlist) = @_;
+     my ($getsec,$filterbyaccstatus,$getgroup,$symb,$submitonly,$filterbysubmstatus) = @_;
-     $getsec = $getsec eq '' ? 'all' : $getsec;
+     my @getsec;
-     my $classlist=&Apache::loncoursedata::get_classlist();
+     my @getgroup;
+     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+     if (!ref($getsec)) {
+ 	if ($getsec ne '' && $getsec ne 'all') {
+ 	    @getsec=($getsec);
+ 	}
+     } else {
+ 	@getsec=@{$getsec};
+     }
+     if (grep(/^all$/,@getsec)) { undef(@getsec); }
+     if (!ref($getgroup)) {
+ 	if ($getgroup ne '' && $getgroup ne 'all') {
+ 	    @getgroup=($getgroup);
+ 	}
+     } else {
+ 	@getgroup=@{$getgroup};
+     }
+     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
+     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
      # Bail out if we were unable to get the classlist
      return if (! defined($classlist));
+     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
      #
      my %sections;
      my %fullnames;
-     foreach (keys(%$classlist)) {
+     my ($cdom,$cnum,$partlist);
-         # the following undefs are for 'domain', and 'username' respectively.
+     if (($filterbysubmstatus) && ($submitonly ne 'all') && ($symb ne '')) {
- 	my (undef,undef,$end,$start,$id,$section,$fullname,$status)=
+         $cdom = $env{"course.$env{'request.course.id'}.domain"};
-             @{$classlist->{$_}};
+         $cnum = $env{"course.$env{'request.course.id'}.num"};
+         my $res_error;
+         ($partlist,my $handgrade,my $responseType) = &response_type($symb,\$res_error);
+     }
+     foreach my $student (keys(%$classlist)) {
+         my $end      =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
+         my $start    =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
+         my $id       =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
+         my $section  =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
+         my $fullname =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
+         my $status   =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
+         my $group   =
+             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  	# filter students according to status selected
- 	if ($filterlist && $ENV{'form.Status'} ne 'Any') {
+ 	if ($filterbyaccstatus && (!($stu_status =~ /Any/))) {
- 	    if ($ENV{'form.Status'} ne $status) {
+ 	    if (!($stu_status =~ $status)) {
- 		delete ($classlist->{$_});
+ 		delete($classlist->{$student});
  		next;
  	    }
  	}
- 	$section = ($section ne '' ? $section : 'no');
+ 	# filter students according to groups selected
+ 	my @stu_groups = split(/,/,$group);
+ 	if (@getgroup) {
+ 	    my $exclude = 1;
+ 	    foreach my $grp (@getgroup) {
+ 	        foreach my $stu_group (@stu_groups) {
+ 	            if ($stu_group eq $grp) {
+ 	                $exclude = 0;
+     	            }
+ 	        }
+     	        if (($grp eq 'none') && !$group) {
+         	    $exclude = 0;
+         	}
+ 	    }
+ 	    if ($exclude) {
+ 	        delete($classlist->{$student});
+ 		next;
+ 	    }
+ 	}
+         if (($filterbysubmstatus) && ($submitonly ne 'all') && ($symb ne '')) {
+             my $udom =
+                 $classlist->{$student}->[&Apache::loncoursedata::CL_SDOM()];
+             my $uname =
+                 $classlist->{$student}->[&Apache::loncoursedata::CL_SNAME()];
+             if (($symb ne '') && ($udom ne '') && ($uname ne '')) {
+                 if ($submitonly eq 'queued') {
+                     my %queue_status =
+                         &Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
+                                                                 $udom,$uname);
+                     if (!defined($queue_status{'gradingqueue'})) {
+                         delete($classlist->{$student});
+                         next;
+                     }
+                 } else {
+                     my (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
+                     my $submitted = 0;
+                     my $graded = 0;
+                     my $incorrect = 0;
+                     foreach (keys(%status)) {
+                         $submitted = 1 if ($status{$_} ne 'nothing');
+                         $graded = 1 if ($status{$_} =~ /^ungraded/);
+                         $incorrect = 1 if ($status{$_} =~ /^incorrect/);
+                         my ($foo,$partid,$foo1) = split(/\./,$_);
+                         if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
+                             $submitted = 0;
+                         }
+                     }
+                     if (!$submitted && ($submitonly eq 'yes' ||
+                                         $submitonly eq 'incorrect' ||
+                                         $submitonly eq 'graded')) {
+                         delete($classlist->{$student});
+                         next;
+                     } elsif (!$graded && ($submitonly eq 'graded')) {
+                         delete($classlist->{$student});
+                         next;
+                     } elsif (!$incorrect && $submitonly eq 'incorrect') {
+                         delete($classlist->{$student});
+                         next;
+                     }
+                 }
+             }
+         }
+ 	$section = ($section ne '' ? $section : 'none');
  	if (&canview($section)) {
- 	    if ($getsec eq 'all' || $getsec eq $section) {
+ 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  		$sections{$section}++;
- 		$fullnames{$_}=$fullname;
+ 		if ($classlist->{$student}) {
+ 		    $fullnames{$student}=$fullname;
+ 		}
  	    } else {
- 		delete($classlist->{$_});
+ 		delete($classlist->{$student});
  	    }
  	} else {
- 	    delete($classlist->{$_});
+ 	    delete($classlist->{$student});
  	}
      }
-     my %seen = ();
      my @sections = sort(keys(%sections));
      return ($classlist,\@sections,\%fullnames);
  }
- Line 243  sub canmodify {
+ Line 654  sub canmodify {
  		#can modify the requested section
  		return 1;
  	    } else {
- 		# can't modify the request section
+ 		# can't modify the requested section
  		return 0;
  	    }
  	}
- Line 256  sub canview {
+ Line 667  sub canview {
      my ($sec)=@_;
      if ($perm{'vgr'}) {
  	if (!defined($perm{'vgr_section'})) {
- 	    # can modify whole class
+ 	    # can view whole class
  	    return 1;
  	} else {
  	    if ($sec eq $perm{'vgr_section'}) {
- 		#can modify the requested section
+ 		#can view the requested section
  		return 1;
  	    } else {
- 		# can't modify the request section
+ 		# can't view the requested section
  		return 0;
  	    }
  	}
      }
-     #can't modify
+     #can't view
      return 0;
  }
  #--- Retrieve the grade status of a student for all the parts
  sub student_gradeStatus {
-     my ($url,$symb,$udom,$uname,$partlist) = @_;
+     my ($symb,$udom,$uname,$partlist) = @_;
-     my %record     = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
+     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
      my %partstatus = ();
      foreach (@$partlist) {
- 	my ($status,$foo)    = split(/_/,$record{"resource.$_.solved"},2);
+ 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  	$status              = 'nothing' if ($status eq '');
  	$partstatus{$_}      = $status;
  	my $subkey           = "resource.$_.submitted_by";
- Line 291  sub student_gradeStatus {
+ Line 702  sub student_gradeStatus {
  # Use by verifyscript and viewgrades
  # Shows a student's view of problem and submission
  sub jscriptNform {
-     my ($url,$symb) = @_;
+     my ($symb) = @_;
-     my $jscript='<script type="text/javascript" language="javascript">'."\n".
+     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+     my $jscript= &Apache::lonhtmlcommon::scripttag(
  	'    function viewOneStudent(user,domain) {'."\n".
  	'	document.onestudent.student.value = user;'."\n".
  	'	document.onestudent.userdom.value = domain;'."\n".
  	'	document.onestudent.submit();'."\n".
  	'    }'."\n".
- 	'</script>'."\n";
+ 	"\n");
      $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
- 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
- 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
- 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
- 	'<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n".
  	'<input type="hidden" name="command" value="submission" />'."\n".
  	'<input type="hidden" name="student" value="" />'."\n".
  	'<input type="hidden" name="userdom" value="" />'."\n".
- Line 311  sub jscriptNform {
+ Line 721  sub jscriptNform {
      return $jscript;
  }
+ # Given the score (as a number [0-1] and the weight) what is the final
+ # point value? This function will round to the nearest tenth, third,
+ # or quarter if one of those is within the tolerance of .00001.
+ sub compute_points {
+     my ($score, $weight) = @_;
+     my $tolerance = .00001;
+     my $points = $score * $weight;
+     # Check for nearness to 1/x.
+     my $check_for_nearness = sub {
+         my ($factor) = @_;
+         my $num = ($points * $factor) + $tolerance;
+         my $floored_num = floor($num);
+         if ($num - $floored_num < 2 * $tolerance * $factor) {
+             return $floored_num / $factor;
+         }
+         return $points;
+     };
+     $points = $check_for_nearness->(10);
+     $points = $check_for_nearness->(3);
+     $points = $check_for_nearness->(4);
+     return $points;
+ }
  #------------------ End of general use routines --------------------
  #
- Line 318  sub jscriptNform {
+ Line 757  sub jscriptNform {
  #
  sub most_similar {
-     my ($uname,$udom,$uessay)=@_;
+     my ($uname,$udom,$symb,$uessay)=@_;
+     unless ($symb) { return ''; }
+     unless (ref($old_essays{$symb}) eq 'HASH') { return ''; }
  # ignore spaces and punctuation
      $uessay=~s/\W+/ /gs;
+ # ignore empty submissions (occuring when only files are sent)
+     unless ($uessay=~/\w+/s) { return ''; }
  # these will be returned. Do not care if not at least 50 percent similar
      my $limit=0.6;
      my $sname='';
- Line 331  sub most_similar {
+ Line 778  sub most_similar {
      my $scrsid='';
      my $sessay='';
  # go through all essays ...
-     foreach my $tkey (keys %oldessays) {
+     foreach my $tkey (keys(%{$old_essays{$symb}})) {
- 	my ($tname,$tdom,$tcrsid)=split(/\./,$tkey);
+ 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  # ... except the same student
-         if (($tname ne $uname) || ($tdom ne $udom)) {
+         next if (($tname eq $uname) && ($tdom eq $udom));
- 	    my $tessay=$oldessays{$tkey};
+ 	my $tessay=$old_essays{$symb}{$tkey};
-             $tessay=~s/\W+/ /gs;
+ 	$tessay=~s/\W+/ /gs;
  # String similarity gives up if not even limit
-             my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
+ 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  # Found one
-             if ($tsimilar>$limit) {
+ 	if ($tsimilar>$limit) {
- 		$limit=$tsimilar;
+ 	    $limit=$tsimilar;
-                 $sname=$tname;
+ 	    $sname=$tname;
-                 $sdom=$tdom;
+ 	    $sdom=$tdom;
-                 $scrsid=$tcrsid;
+ 	    $scrsid=$tcrsid;
-                 $sessay=$oldessays{$tkey};
+ 	    $sessay=$old_essays{$symb}{$tkey};
-             }
+ 	}
-         }
      }
      if ($limit>0.6) {
         return ($sname,$sdom,$scrsid,$sessay,$limit);
- Line 360  sub most_similar {
+ Line 806  sub most_similar {
  #------------------------------------ Receipt Verification Routines
  #
+ sub initialverifyreceipt {
+    my ($request,$symb) = @_;
+    &commonJSfunctions($request);
+    return '<form name="gradingMenu" action=""><input type="submit" value="'.&mt('Verify Receipt Number.').'" />'.
+         &Apache::lonnet::recprefix($env{'request.course.id'}).
+         '-<input type="text" name="receipt" size="4" />'.
+         '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
+         '<input type="hidden" name="command" value="verify" />'.
+         "</form>\n";
+ }
  #--- Check whether a receipt number is valid.---
  sub verifyreceipt {
-     my $request  = shift;
+     my ($request,$symb) = @_;
-     my $courseid = $ENV{'request.course.id'};
+     my $courseid = $env{'request.course.id'};
-     my $receipt  = unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).'-'.
+     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
- 	$ENV{'form.receipt'};
+ 	$env{'form.receipt'};
      $receipt     =~ s/[^\-\d]//g;
-     my $url      = $ENV{'form.url'};
-     my $symb     = $ENV{'form.symb'};
-     unless ($symb) {
- 	$symb    = &Apache::lonnet::symbread($url);
-     }
-     my $title.='<h3><font color="#339933">Verifying Submission Receipt '.
+     my $title =
- 	$receipt.'</h3></font>'."\n".
+ 	'<h3><span class="LC_info">'.
- 	'<font size=+1><b>Resource: </b>'.$ENV{'form.probTitle'}.'</font><br><br>'."\n";
+ 	&mt('Verifying Receipt Number [_1]',$receipt).
+ 	'</span></h3>'."\n";
      my ($string,$contents,$matches) = ('','',0);
      my (undef,undef,$fullname) = &getclasslist('all','0');
-     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+     my $receiptparts=0;
+     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
+ 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
+     my $parts=['0'];
+     if ($receiptparts) {
+         my $res_error;
+         ($parts)=&response_type($symb,\$res_error);
+         if ($res_error) {
+             return &navmap_errormsg();
+         }
+     }
+     my $header =
+ 	&Apache::loncommon::start_data_table().
+ 	&Apache::loncommon::start_data_table_header_row().
+ 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
+ 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
+ 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
+     if ($receiptparts) {
+ 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
+     }
+     $header.=
+ 	&Apache::loncommon::end_data_table_header_row();
+     foreach (sort
+ 	     {
+ 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+ 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+ 		 }
+ 		 return $a cmp $b;
+ 	     } (keys(%$fullname))) {
  	my ($uname,$udom)=split(/\:/);
- 	if ($receipt eq
+ 	foreach my $part (@$parts) {
- 	    &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb)) {
+ 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
- 	    $contents.='<tr bgcolor="#ffffe6"><td>&nbsp;'."\n".
+ 		$contents.=
- 		'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
+ 		    &Apache::loncommon::start_data_table_row().
- 		'\')"; TARGET=_self>'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
+ 		    '<td>&nbsp;'."\n".
- 		'<td>&nbsp;'.$uname.'&nbsp;</td>'.
+ 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
- 		'<td>&nbsp;'.$udom.'&nbsp;</td></tr>'."\n";
+ 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
+ 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
- 	    $matches++;
+ 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
+ 		if ($receiptparts) {
+ 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
+ 		}
+ 		$contents.=
+ 		    &Apache::loncommon::end_data_table_row()."\n";
+ 		$matches++;
+ 	    }
  	}
      }
      if ($matches == 0) {
- 	$string = $title.'No match found for the above receipt.';
+         $string = $title
+                  .'<p class="LC_warning">'
+                  .&mt('No match found for the above receipt number.')
+                  .'</p>';
      } else {
- 	$string = &jscriptNform($url,$symb).$title.
+ 	$string = &jscriptNform($symb).$title.
- 	    'The above receipt matches the following student'.
+ 	    '<p>'.
- 	    ($matches <= 1 ? '.' : 's.')."\n".
+ 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
- 	    '<table border="0"><tr><td bgcolor="#777777">'."\n".
+ 	    '</p>'.
- 	    '<table border="0"><tr bgcolor="#e6ffff">'."\n".
+ 	    $header.
- 	    '<td><b>&nbsp;Fullname&nbsp;</b></td>'."\n".
- 	    '<td><b>&nbsp;Username&nbsp;</b></td>'."\n".
- 	    '<td><b>&nbsp;Domain&nbsp;</b></td></tr>'."\n".
  	    $contents.
- 	    '</table></td></tr></table>'."\n";
+ 	    &Apache::loncommon::end_data_table()."\n";
      }
-     return $string.&show_grading_menu_form($symb,$url);
+     return $string;
  }
  #--- This is called by a number of programs.
- Line 416  sub verifyreceipt {
+ Line 908  sub verifyreceipt {
  #--- Also called directly when one clicks on the subm button
  #    on the problem page.
  sub listStudents {
-     my ($request) = shift;
+     my ($request,$symb,$submitonly) = @_;
-     my ($symb,$url) = &get_symb_and_url($request);
-     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
-     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
-     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
-     my $submitonly= $ENV{'form.submitonly'} eq '' ? 'all' : $ENV{'form.submitonly'};
-     my $viewgrade = $ENV{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
-     $ENV{'form.probTitle'} = $ENV{'form.probTitle'} eq '' ?
- 	&Apache::lonnet::gettitle($symb) : $ENV{'form.probTitle'};
-     my $result='<h3><font color="#339933">&nbsp;'.$viewgrade.
- 	' Submissions for a Student or a Group of Students</font></h3>';
-     my ($table,$resptype,$hdgrade,$partlist,$handgrade) = &showResourceInfo($url,$ENV{'form.probTitle'});
+     my $is_tool   = ($symb =~ /ext\.tool$/);
-     $result.=$table;
+     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
+     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
-     $request->print(<<LISTJAVASCRIPT);
+     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
- <script type="text/javascript" language="javascript">
+     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
+     unless ($submitonly) {
+         $submitonly = $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
+     }
+     my $result='';
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+     my %js_lt = &Apache::lonlocal::texthash (
+ 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
+ 		'single'   => 'Please select the student before clicking on the Next button.',
+ 	     );
+     &js_escape(\%js_lt);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
      function checkSelect(checkBox) {
  	var ctr=0;
  	var sense="";
- Line 445  sub listStudents {
+ Line 938  sub listStudents {
  		    ctr++;
  		}
  	    }
- 	    sense = "a student or group of students";
+ 	    sense = '$js_lt{'multiple'}';
  	} else {
  	    if (checkBox.checked) {
  		ctr = 1;
  	    }
- 	    sense = "the student";
+ 	    sense = '$js_lt{'single'}';
  	}
  	if (ctr == 0) {
- 	    alert("Please select "+sense+" before clicking on the $viewgrade button.");
+ 	    alert(sense);
  	    return false;
  	}
  	document.gradesub.submit();
- Line 464  sub listStudents {
+ Line 957  sub listStudents {
  	formname.command.value = 'submission';
  	formname.submit();
      }
- </script>
  LISTJAVASCRIPT
      &commonJSfunctions($request);
      $request->print($result);
-     my $checkhdgrade = ($ENV{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked' : '';
+     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
-     my $checklastsub = $checkhdgrade eq '' ? 'checked' : '';
+ 	"\n";
-     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'."\n".
- 	'&nbsp;<b>View Problem Text: </b><input type="radio" name="vProb" value="no" checked /> no '."\n".
+     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
- 	'<input type="radio" name="vProb" value="yes" /> one student '."\n".
+     unless ($is_tool) {
- 	'<input type="radio" name="vProb" value="all" /> all students <br />'."\n".
+         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
- 	'&nbsp;<b>Submissions: </b>'."\n";
+                       .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
-     if ($ENV{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
+                       .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
- 	$gradeTable.='<input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> essay part only'."\n";
+                       .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
-     }
+                       .&Apache::lonhtmlcommon::row_closure();
+         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
-     my $saveStatus = $ENV{'form.Status'} eq '' ? 'Active' : $ENV{'form.Status'};
+                       .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
-     $ENV{'form.Status'} = $saveStatus;
+                       .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
+                       .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
-     $gradeTable.='<input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> last sub only'."\n".
+                       .&Apache::lonhtmlcommon::row_closure();
- 	'<input type="radio" name="lastSub" value="last" /> last sub & parts info'."\n".
+     }
- 	'<input type="radio" name="lastSub" value="all" /> all details'."\n".
- 	'<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
+     my $submission_options;
+     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
+     $env{'form.Status'} = $saveStatus;
+     my %optiontext;
+     if ($is_tool) {
+         %optiontext = &Apache::lonlocal::texthash (
+                           lastonly => 'last transaction',
+                           last     => 'last transaction with details',
+                           datesub  => 'all transactions',
+                           all      => 'all transactions with details',
+                       );
+     } else {
+         %optiontext = &Apache::lonlocal::texthash (
+                           lastonly => 'last submission',
+                           last     => 'last submission with details',
+                           datesub  => 'all submissions',
+                           all      => 'all submissions with details',
+                       );
+     }
+     $submission_options.=
+         '<span class="LC_nobreak">'.
+         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
+         $optiontext{'lastonly'}.' </label></span>'."\n".
+         '<span class="LC_nobreak">'.
+         '<label><input type="radio" name="lastSub" value="last" /> '.
+         $optiontext{'last'}.' </label></span>'."\n".
+         '<span class="LC_nobreak">'.
+         '<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.
+         $optiontext{'datesub'}.'</label></span>'."\n".
+         '<span class="LC_nobreak">'.
+         '<label><input type="radio" name="lastSub" value="all" /> '.
+         $optiontext{'all'}.'</label></span>';
+     my $viewtitle;
+     if ($is_tool) {
+         $viewtitle = &mt('View Transactions');
+     } else {
+         $viewtitle = &mt('View Submissions');
+     }
+     $gradeTable .= &Apache::lonhtmlcommon::row_title($viewtitle)
+                   .$submission_options
+                   .&Apache::lonhtmlcommon::row_closure();
+     my $closure;
+     if (($is_tool) && (exists($env{'form.Status'}))) {
+         $closure = 1;
+     }
+     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
+                   .'<select name="increment">'
+                   .'<option value="1">'.&mt('Whole Points').'</option>'
+                   .'<option value=".5">'.&mt('Half Points').'</option>'
+                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
+                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
+                   .'</select>'
+                   .&Apache::lonhtmlcommon::row_closure($closure);
+     $gradeTable .=
+         &build_section_inputs().
  	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
- 	'<input type="hidden" name="response"    value="'.$ENV{'form.response'}.'" />'."\n".
+ 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
- 	'<input type="hidden" name="handgrade"   value="'.$ENV{'form.handgrade'}.'" /><br />'."\n".
- 	'<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" /><br />'."\n".
- 	'<input type="hidden" name="saveState"   value="'.$ENV{'form.saveState'}.'" />'."\n".
- 	'<input type="hidden" name="probTitle"   value="'.$ENV{'form.probTitle'}.'" />'."\n".
- 	'<input type="hidden" name="url"  value="'.$url.'" />'."\n".
- 	'<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
  	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
-     $gradeTable.='<b>Student Status:</b> '.
+     if (exists($env{'form.Status'})) {
- 	&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,'javascript:reLoadList(this.form);').'<br />';
+ 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
+     } else {
+         if ($is_tool) {
+             $closure = 1;
+         }
+         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
+                       .&Apache::lonhtmlcommon::StatusOptions(
+                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
+                       .&Apache::lonhtmlcommon::row_closure($closure);
+     }
+     unless ($is_tool) {
+         $closure = 1;
+         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
+                       .'<input type="checkbox" name="checkPlag" checked="checked" />'
+                       .&Apache::lonhtmlcommon::row_closure($closure);
+     }
+     $gradeTable .= &Apache::lonhtmlcommon::end_pick_box();
+     my $regrademsg;
+     if ($is_tool) {
+         $regrademsg =&mt("To view/grade/regrade, click on the check box(es) next to the student's name(s). Then click on the Next button.");
+     } else {
+         $regrademsg = &mt("To view/grade/regrade a submission or a group of submissions, click on the check box(es) next to the student's name(s). Then click on the Next button.");
+     }
+     $gradeTable .= '<p>'
+                   .$regrademsg."\n"
+                   .'<input type="hidden" name="command" value="processGroup" />'
+                   .'</p>';
-     $gradeTable.='To '.lc($viewgrade).' a submission, click on the check box next to the student\'s name. Then '."\n".
+ # checkall buttons
- 	'click on the '.$viewgrade.' button. To view the submissions for a group of students, click'."\n".
+     $gradeTable.=&check_script('gradesub', 'stuinfo');
- 	' on the check boxes for the group of students.<br />'."\n".
- 	'<input type="hidden" name="command" value="processGroup" />'."\n";
      $gradeTable.='<input type="button" '."\n".
- 	'onClick="javascript:checkSelect(this.form.stuinfo);" '."\n".
+         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
- 	'value="'.$viewgrade.'" />'."\n";
+         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
+     $gradeTable.=&check_buttons();
-     my (undef, undef, $fullname) = &getclasslist($getsec,'1');
+     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
-     $gradeTable.='<table border="0"><tr><td bgcolor="#777777">'.
+     $gradeTable.= &Apache::loncommon::start_data_table().
- 	'<table border="0"><tr bgcolor="#e6ffff">';
+ 	&Apache::loncommon::start_data_table_header_row();
      my $loop = 0;
      while ($loop < 2) {
- 	$gradeTable.='<td><b>&nbsp;Select&nbsp;</b></td><td><b>&nbsp;Fullname&nbsp;</b>'.
+ 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
- 	    '<font color="#999999">(Username)</font>&nbsp;</td>';
+ 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
- 	if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
- 	    foreach (sort(@$partlist)) {
+ 	    foreach my $part (sort(@$partlist)) {
- 		$gradeTable.='<td><b>&nbsp;Part '.(split(/_/))[0].' Status&nbsp;</b></td>';
+ 		my $display_part=
+ 		    &get_display_part((split(/_/,$part))[0],$symb);
+ 		$gradeTable.=
+ 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
  	    }
+ 	} elsif ($submitonly eq 'queued') {
+ 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
  	}
  	$loop++;
+ #	$gradeTable.='<td></td>' if ($loop%2 ==1);
      }
-     $gradeTable.='</tr>'."\n";
+     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
      my $ctr = 0;
-     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+     foreach my $student (sort
+ 			 {
+ 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+ 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+ 			     }
+ 			     return $a cmp $b;
+ 			 }
+ 			 (keys(%$fullname))) {
  	my ($uname,$udom) = split(/:/,$student);
  	my %status = ();
- 	if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
- 	    (%status) =&student_gradeStatus($url,$symb,$udom,$uname,$partlist);
+ 	if ($submitonly eq 'queued') {
- 	    my $statusflg = '';
+ 	    my %queue_status =
+ 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
+ 							$udom,$uname);
+ 	    next if (!defined($queue_status{'gradingqueue'}));
+ 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
+ 	}
+ 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
+ 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
+ 	    my $submitted = 0;
+ 	    my $graded = 0;
+ 	    my $incorrect = 0;
  	    foreach (keys(%status)) {
- 		$statusflg = 1 if ($status{$_} ne 'nothing');
+ 		$submitted = 1 if ($status{$_} ne 'nothing');
+ 		$graded = 1 if ($status{$_} =~ /^ungraded/);
+ 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
  		my ($foo,$partid,$foo1) = split(/\./,$_);
  		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
- 		    $statusflg = '';
+ 		    $submitted = 0;
+ 		    my ($part)=split(/\./,$partid);
  		    $gradeTable.='<input type="hidden" name="'.
- 			$student.':submitted_by" value="'.
+ 			$student.':'.$part.':submitted_by" value="'.
  			$status{'resource.'.$partid.'.submitted_by'}.'" />';
  		}
  	    }
- 	    next if ($statusflg eq '' && $submitonly eq 'yes');
+ 	    next if (!$submitted && ($submitonly eq 'yes' ||
+ 				     $submitonly eq 'incorrect' ||
+ 				     $submitonly eq 'graded'));
+ 	    next if (!$graded && ($submitonly eq 'graded'));
+ 	    next if (!$incorrect && $submitonly eq 'incorrect');
  	}
  	$ctr++;
+ 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
+         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  	if ( $perm{'vgr'} eq 'F' ) {
- 	    $gradeTable.='<tr bgcolor="#ffffe6">' if ($ctr%2 ==1);
+ 	    if ($ctr%2 ==1) {
- 	    $gradeTable.='<td align="center"><input type=checkbox name="stuinfo" value="'.
+ 		$gradeTable.= &Apache::loncommon::start_data_table_row();
- 		$student.':'.$$fullname{$student}.'&nbsp;"></td>'."\n".
+ 	    }
- 		'<td>&nbsp;'.$$fullname{$student}.'&nbsp;'."\n".
+ 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
- 		'<font color="#999999">('.$uname.')</font></td>'."\n";
+                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
+                $student.':'.$$fullname{$student}.':::SECTION'.$section.
- 	    if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
- 		foreach (sort keys(%status)) {
+ 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
- 		    next if (/^resource.*?submitted_by$/);
+ 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
- 		    $gradeTable.='<td align="middle">&nbsp;'.$status{$_}.'&nbsp;</td>'."\n";
+ 	    if ($submitonly ne 'all') {
+ 		foreach (sort(keys(%status))) {
+ 		    next if ($_ =~ /^resource.*?submitted_by$/);
+ 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
  		}
  	    }
- 	    $gradeTable.='</tr>'."\n" if ($ctr%2 ==0);
+ #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
+ 	    if ($ctr%2 ==0) {
+ 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
+ 	    }
  	}
      }
      if ($ctr%2 ==1) {
- 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td>';
+ 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
- 	    if ($ENV{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
+ 	    if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
  		foreach (@$partlist) {
  		    $gradeTable.='<td>&nbsp;</td>';
  		}
+ 	    } elsif ($submitonly eq 'queued') {
+ 		$gradeTable.='<td>&nbsp;</td>';
  	    }
- 	$gradeTable.='</tr>';
+ 	$gradeTable.=&Apache::loncommon::end_data_table_row();
      }
-     $gradeTable.='</table></td></tr></table>'.
+     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
- 	'<input type="button" '.
+         '<input type="button" '.
- 	'onClick="javascript:checkSelect(this.form.stuinfo);" '.
+         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
- 	'value="'.$viewgrade.'" /></form>'."\n";
+         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
      if ($ctr == 0) {
  	my $num_students=(scalar(keys(%$fullname)));
  	if ($num_students eq 0) {
- 	    $gradeTable='<br />&nbsp;<font color="red">There are no students currently enrolled.</font>';
+ 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
  	} else {
- 	    $gradeTable='<br />&nbsp;<font color="red">'.
+ 	    my $submissions='submissions';
- 		'No submissions found for this resource for any students. ('.$num_students.
+ 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
- 		' checked for submissions</font><br />';
+ 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
+ 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
+ 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
+ 		&mt('No '.$submissions.' found for this resource for any students. ([quant,_1,student] checked for '.$submissions.')',
+ 		    $num_students).
+ 		'</span><br />';
  	}
      } elsif ($ctr == 1) {
- 	$gradeTable =~ s/type=checkbox/type=checkbox checked/;
+ 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
      }
-     $gradeTable.=&show_grading_menu_form($symb,$url);
      $request->print($gradeTable);
      return '';
  }
  #---- Called from the listStudents routine
+ sub check_script {
+     my ($form,$type) = @_;
+     my $chkallscript = &Apache::lonhtmlcommon::scripttag('
+     function checkall() {
+         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
+             ele = document.forms.'.$form.'.elements[i];
+             if (ele.name == "'.$type.'") {
+             document.forms.'.$form.'.elements[i].checked=true;
+                                        }
+         }
+     }
+     function checksec() {
+         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
+             ele = document.forms.'.$form.'.elements[i];
+            string = document.forms.'.$form.'.chksec.value;
+            if
+           (ele.value.indexOf(":::SECTION"+string)>0) {
+               document.forms.'.$form.'.elements[i].checked=true;
+             }
+         }
+     }
+     function uncheckall() {
+         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
+             ele = document.forms.'.$form.'.elements[i];
+             if (ele.name == "'.$type.'") {
+             document.forms.'.$form.'.elements[i].checked=false;
+                                        }
+         }
+     }
+ '."\n");
+     return $chkallscript;
+ }
+ sub check_buttons {
+     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
+     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
+     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
+     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
+     return $buttons;
+ }
  #     Displays the submissions for one student or a group of students
  sub processGroup {
-     my ($request)  = shift;
+     my ($request,$symb) = @_;
      my $ctr        = 0;
-     my @stuchecked = (ref($ENV{'form.stuinfo'}) ? @{$ENV{'form.stuinfo'}}
+     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
- 		      : ($ENV{'form.stuinfo'}));
      my $total      = scalar(@stuchecked)-1;
-     foreach (@stuchecked) {
+     foreach my $student (@stuchecked) {
- 	my ($uname,$udom,$fullname) = split(/:/);
+ 	my ($uname,$udom,$fullname) = split(/:/,$student);
- 	$ENV{'form.student'}        = $uname;
+ 	$env{'form.student'}        = $uname;
- 	$ENV{'form.userdom'}        = $udom;
+ 	$env{'form.userdom'}        = $udom;
- 	$ENV{'form.fullname'}       = $fullname;
+ 	$env{'form.fullname'}       = $fullname;
- 	&submission($request,$ctr,$total);
+ 	&submission($request,$ctr,$total,$symb);
  	$ctr++;
      }
      return '';
- Line 621  sub processGroup {
+ Line 1283  sub processGroup {
  #--- Javascript to handle the submission page functionality ---
  sub sub_page_js {
      my $request = shift;
-     $request->print(<<SUBJAVASCRIPT);
+     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
- <script type="text/javascript" language="javascript">
+     &js_escape(\$alertmsg);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
      function updateRadio(formname,id,weight) {
- 	var gradeBox = eval("formname.GD_BOX"+id);
+ 	var gradeBox = formname["GD_BOX"+id];
- 	var radioButton = eval("formname.RADVAL"+id);
+ 	var radioButton = formname["RADVAL"+id];
- 	var oldpts = eval("formname.oldpts"+id+".value");
+ 	var oldpts = formname["oldpts"+id].value;
  	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
  	gradeBox.value = pts;
  	var resetbox = false;
  	if (isNaN(pts) || pts < 0) {
- 	    alert("A number equal or greater than 0 is expected. Entered value = "+pts);
+ 	    alert("$alertmsg"+pts);
  	    for (var i=0; i<radioButton.length; i++) {
  		if (radioButton[i].checked) {
  		    gradeBox.value = i;
- Line 648  sub sub_page_js {
+ Line 1311  sub sub_page_js {
  	    var resp = confirm("You entered a value ("+pts+
  			       ") greater than the weight for the part. Accept?");
  	    if (resp == false) {
- 		gradeBox.value = "";
+ 		gradeBox.value = oldpts;
  		return;
  	    }
  	}
- Line 660  sub sub_page_js {
+ Line 1323  sub sub_page_js {
  	    }
  	}
  	updateSelect(formname,id);
- 	var stores = eval("formname.stores"+id);
+ 	formname["stores"+id].value = "0";
- 	stores.value = "0";
      }
      function writeBox(formname,id,pts) {
- 	var gradeBox = eval("formname.GD_BOX"+id);
+ 	var gradeBox = formname["GD_BOX"+id];
  	if (checkSolved(formname,id) == 'update') {
  	    gradeBox.value = pts;
  	} else {
- 	    var oldpts = eval("formname.oldpts"+id+".value");
+ 	    var oldpts = formname["oldpts"+id].value;
  	    gradeBox.value = oldpts;
- 	    var radioButton = eval("formname.RADVAL"+id);
+ 	    var radioButton = formname["RADVAL"+id];
  	    for (var i=0; i<radioButton.length; i++) {
  		radioButton[i].checked=false;
  		if (i == oldpts) {
- Line 679  sub sub_page_js {
+ Line 1341  sub sub_page_js {
  		}
  	    }
  	}
- 	var stores = eval("formname.stores"+id);
+ 	formname["stores"+id].value = "0";
- 	stores.value = "0";
  	updateSelect(formname,id);
  	return;
      }
- Line 690  sub sub_page_js {
+ Line 1351  sub sub_page_js {
  	    updateSelect(formname,id);
  	    return;
  	}
- 	gradeSelect = eval("formname.GD_SEL"+id);
+ 	gradeSelect = formname["GD_SEL"+id];
  	for (var i=0; i<gradeSelect.length; i++) {
  	    if (gradeSelect[i].selected) {
  		var selectx=i;
  	    }
  	}
- 	var stores = eval("formname.stores"+id);
+ 	var stores = formname["stores"+id];
  	if (selectx == stores.value) { return };
- 	var gradeBox = eval("formname.GD_BOX"+id);
+ 	var gradeBox = formname["GD_BOX"+id];
  	gradeBox.value = "";
- 	var radioButton = eval("formname.RADVAL"+id);
+ 	var radioButton = formname["RADVAL"+id];
  	for (var i=0; i<radioButton.length; i++) {
  	    radioButton[i].checked=false;
  	}
- Line 708  sub sub_page_js {
+ Line 1369  sub sub_page_js {
      }
      function checkSolved(formname,id) {
- 	if (eval("formname.solved"+id+".value") == "correct_by_student" && formname.overRideScore.value == 'no') {
+ 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
  	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
  	    if (!reply) {return "noupdate";}
  	    formname.overRideScore.value = 'yes';
- Line 717  sub sub_page_js {
+ Line 1378  sub sub_page_js {
      }
      function updateSelect(formname,id) {
- 	var gradeSelect = eval("formname.GD_SEL"+id);
+ 	formname["GD_SEL"+id][0].selected = true;
- 	gradeSelect[0].selected = true;
  	return;
      }
- Line 728  sub sub_page_js {
+ Line 1388  sub sub_page_js {
  	if (val == "Save & Next") {
  	    for (i=0;i<=total;i++) {
  		for (j=0;j<parttot;j++) {
- 		    var partid = eval("formname.partid"+i+"_"+j+".value");
+ 		    var partid = formname["partid"+i+"_"+j].value;
- 		    var selopt = eval("formname.GD_SEL"+i+"_"+partid);
+ 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
- 		    if (selopt[0].selected) {
+ 			var points = formname["GD_BOX"+i+"_"+partid].value;
- 			var points = eval("formname.GD_BOX"+i+"_"+partid+".value");
  			if (points == "") {
- 			    var name = eval("formname.name"+i+".value");
+ 			    var name = formname["name"+i].value;
- 			    var resp = confirm("You did not assign a score for "+name+", part "+partid+". Continue?");
+ 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
+ 			    var resp = confirm("You did not assign a score for "+studentID+
+ 					       ", part "+partid+". Continue?");
  			    if (resp == false) {
- 				eval("formname.GD_BOX"+i+"_"+partid+".focus()");
+ 				formname["GD_BOX"+i+"_"+partid].focus();
  				return false;
  			    }
  			}
  		    }
  		}
  	    }
- 	}
- 	if (val == "Grade Student") {
- 	    formname.showgrading.value = "yes";
- 	    if (formname.Status.value == "") {
- 		formname.Status.value = "Active";
- 	    }
- 	    formname.studentNo.value = total;
  	}
  	formname.submit();
      }
- Line 761  sub sub_page_js {
+ Line 1413  sub sub_page_js {
  	noscore = new Array(100);
  	var ptr = 0;
  	for (i=1;i<total;i++) {
- 	    var partid = eval("formname.q_"+i+".value");
+ 	    var partid = formname["q_"+i].value;
- 	    var selopt = eval("formname.GD_SEL"+i+"_"+partid);
+ 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
- 	    if (selopt[0].selected) {
+ 		var points = formname["GD_BOX"+i+"_"+partid].value;
- 		var points = eval("formname.GD_BOX"+i+"_"+partid+".value");
+ 		var status = formname["solved"+i+"_"+partid].value;
- 		var status = eval("formname.solved"+i+"_"+partid+".value");
  		if (points == "" && status != "correct_by_student") {
  		    noscore[ptr] = i;
  		    ptr++;
- Line 793  sub sub_page_js {
+ Line 1444  sub sub_page_js {
  	formname.submit();
      }
- </script>
  SUBJAVASCRIPT
  }
- Line 802  sub sub_page_kw_js {
+ Line 1452  sub sub_page_kw_js {
      my $request = shift;
      my $iconpath = $request->dir_config('lonIconsURL');
      &commonJSfunctions($request);
-     $request->print(<<SUBJAVASCRIPT);
- <script type="text/javascript" language="javascript">
+     my $inner_js_msg_central= (<<INNERJS);
+ <script type="text/javascript">
+     function checkInput() {
+       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
+       var nmsg   = opener.document.SCORE.savemsgN.value;
+       var usrctr = document.msgcenter.usrctr.value;
+       var newval = opener.document.SCORE["newmsg"+usrctr];
+       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
+       var msgchk = "";
+       if (document.msgcenter.subchk.checked) {
+          msgchk = "msgsub,";
+       }
+       var includemsg = 0;
+       for (var i=1; i<=nmsg; i++) {
+           var opnmsg = opener.document.SCORE["savemsg"+i];
+           var frmmsg = document.msgcenter["msg"+i];
+           opnmsg.value = opener.checkEntities(frmmsg.value);
+           var showflg = opener.document.SCORE["shownOnce"+i];
+           showflg.value = "1";
+           var chkbox = document.msgcenter["msgn"+i];
+           if (chkbox.checked) {
+              msgchk += "savemsg"+i+",";
+              includemsg = 1;
+           }
+       }
+       if (document.msgcenter.newmsgchk.checked) {
+          msgchk += "newmsg"+usrctr;
+          includemsg = 1;
+       }
+       imgformname = opener.document.SCORE["mailicon"+usrctr];
+       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
+       var includemsg = opener.document.SCORE["includemsg"+usrctr];
+       includemsg.value = msgchk;
+       self.close()
+     }
+ </script>
+ INNERJS
+     my $inner_js_highlight_central= (<<INNERJS);
+ <script type="text/javascript">
+     function updateChoice(flag) {
+       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
+       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
+       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
+       opener.document.SCORE.refresh.value = "on";
+       if (opener.document.SCORE.keywords.value!=""){
+          opener.document.SCORE.submit();
+       }
+       self.close()
+     }
+ </script>
+ INNERJS
+     my $start_page_msg_central =
+         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
+ 				       {'js_ready'  => 1,
+ 					'only_body' => 1,
+ 					'bgcolor'   =>'#FFFFFF',});
+     my $end_page_msg_central =
+ 	&Apache::loncommon::end_page({'js_ready' => 1});
+     my $start_page_highlight_central =
+         &Apache::loncommon::start_page('Highlight Central',
+ 				       $inner_js_highlight_central,
+ 				       {'js_ready'  => 1,
+ 					'only_body' => 1,
+ 					'bgcolor'   =>'#FFFFFF',});
+     my $end_page_highlight_central =
+ 	&Apache::loncommon::end_page({'js_ready' => 1});
+     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
+     $docopen=~s/^document\.//;
+     my %js_lt = &Apache::lonlocal::texthash(
+                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
+                 plse => 'Please select a word or group of words from document and then click this link.',
+                 adds => 'Add selection to keyword list? Edit if desired.',
+                 col1 => 'red',
+                 col2 => 'green',
+                 col3 => 'blue',
+                 siz1 => 'normal',
+                 siz2 => '+1',
+                 siz3 => '+2',
+                 sty1 => 'normal',
+                 sty2 => 'italic',
+                 sty3 => 'bold',
+              );
+     my %html_js_lt = &Apache::lonlocal::texthash(
+                 comp => 'Compose Message for: ',
+                 incl => 'Include',
+                 type => 'Type',
+                 subj => 'Subject',
+                 mesa => 'Message',
+                 new  => 'New',
+                 save => 'Save',
+                 canc => 'Cancel',
+                 kehi => 'Keyword Highlight Options',
+                 txtc => 'Text Color',
+                 font => 'Font Size',
+                 fnst => 'Font Style',
+              );
+     &js_escape(\%js_lt);
+     &html_escape(\%html_js_lt);
+     &js_escape(\%html_js_lt);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
  //===================== Show list of keywords ====================
-   function keywords(keyform) {
+   function keywords(formname) {
-     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",keyform.value);
+     var nret = prompt("$js_lt{'keyw'}",formname.keywords.value);
      if (nret==null) return;
-     keyform.value = nret;
+     formname.keywords.value = nret;
-     document.SCORE.refresh.value = "on";
+     if (formname.keywords.value != "") {
-     if (document.SCORE.keywords.value != "") {
+ 	formname.refresh.value = "on";
- 	document.SCORE.submit();
+ 	formname.submit();
      }
      return;
    }
- Line 834  sub sub_page_kw_js {
+ Line 1591  sub sub_page_kw_js {
      else return;
      var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
      if (cleantxt=="") {
- 	alert("Please select a word or group of words from document and then click this link.");
+ 	alert("$js_lt{'plse'}");
  	return;
      }
-     var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
+     var nret = prompt("$js_lt{'adds'}",cleantxt);
      if (nret==null) return;
-     var curlist = document.SCORE.keywords.value;
+     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
-     document.SCORE.keywords.value = curlist+" "+nret;
-     document.SCORE.refresh.value = "on";
      if (document.SCORE.keywords.value != "") {
+ 	document.SCORE.refresh.value = "on";
  	document.SCORE.submit();
      }
      return;
- Line 859  sub sub_page_kw_js {
+ Line 1615  sub sub_page_kw_js {
      var Nmsg  = msgform.savemsgN.value;
      savedMsgHeader(Nmsg,usrctr,fullname);
      var subject = msgform.msgsub.value;
-     var rtrchk  = eval("document.SCORE.includemsg"+usrctr);
+     var msgchk = document.SCORE["includemsg"+usrctr].value;
-     var msgchk = rtrchk.value;
      re = /msgsub/;
      var shwsel = "";
      if (re.test(msgchk)) { shwsel = "checked" }
-     displaySubject(subject,shwsel);
+     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
+     displaySubject(checkEntities(subject),shwsel);
      for (var i=1; i<=Nmsg; i++) {
- 	var testpt = "savemsg"+i+",";
+ 	var testmsg = "savemsg"+i+",";
- 	re = /testpt/;
+ 	re = new RegExp(testmsg,"g");
  	shwsel = "";
  	if (re.test(msgchk)) { shwsel = "checked" }
- 	var message = eval("document.SCORE.savemsg"+i+".value");
+ 	var message = document.SCORE["savemsg"+i].value;
- 	displaySavedMsg(i,message,shwsel);
+ 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
+ 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
+ 	                                   //any &lt; is already converted to <, etc. However, only once!!
      }
-     newmsg = eval("document.SCORE.newmsg"+usrctr+".value");
+     newmsg = document.SCORE["newmsg"+usrctr].value;
      shwsel = "";
      re = /newmsg/;
      if (re.test(msgchk)) { shwsel = "checked" }
- Line 882  sub sub_page_kw_js {
+ Line 1640  sub sub_page_kw_js {
      return;
    }
+   function checkEntities(strx) {
+     if (strx.length == 0) return strx;
+     var orgStr = ["&", "<", ">", '"'];
+     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
+     var counter = 0;
+     while (counter < 4) {
+ 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
+ 	counter++;
+     }
+     return strx;
+   }
+   function strReplace(strx, orgStr, newStr) {
+     return strx.split(orgStr).join(newStr);
+   }
    function savedMsgHeader(Nmsg,usrctr,fullname) {
      var height = 70*Nmsg+250;
-     var scrollbar = "no";
      if (height > 600) {
  	height = 600;
- 	scrollbar = "yes";
      }
- //    if (window.pWin) {window.pWin.close(); window.pWin=null}
      var xpos = (screen.width-600)/2;
      xpos = (xpos < 0) ? '0' : xpos;
      var ypos = (screen.height-height)/2-30;
      ypos = (ypos < 0) ? '0' : ypos;
-     pWin = window.open('', 'MessageCenter', 'toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=600,height='+height);
+     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars=yes,screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
      pWin.focus();
      pDoc = pWin.document;
-     pDoc.write("<html><head>");
+     pDoc.$docopen;
-     pDoc.write("<title>Message Central</title>");
+     pDoc.write('$start_page_msg_central');
-     pDoc.write("<script language=javascript>");
-     pDoc.write("function checkInput() {");
-     pDoc.write("  opener.document.SCORE.msgsub.value = document.msgcenter.msgsub.value;");
-     pDoc.write("  var nmsg   = opener.document.SCORE.savemsgN.value;");
-     pDoc.write("  var usrctr = document.msgcenter.usrctr.value;");
-     pDoc.write("  var newval = eval(\\"opener.document.SCORE.newmsg\\"+usrctr);");
-     pDoc.write("  newval.value = document.msgcenter.newmsg.value;");
-     pDoc.write("  var msgchk = \\"\\";");
-     pDoc.write("  if (document.msgcenter.subchk.checked) {");
-     pDoc.write("     msgchk = \\"msgsub,\\";");
-     pDoc.write("  }");
-     pDoc.write("  var includemsg = 0;");
-     pDoc.write("  for (var i=1; i<=nmsg; i++) {");
-     pDoc.write("      var opnmsg = eval(\\"opener.document.SCORE.savemsg\\"+i);");
-     pDoc.write("      var frmmsg = eval(\\"document.msgcenter.msg\\"+i);");
-     pDoc.write("      opnmsg.value = frmmsg.value;");
-     pDoc.write("      var chkbox = eval(\\"document.msgcenter.msgn\\"+i);");
-     pDoc.write("      if (chkbox.checked) {");
-     pDoc.write("         msgchk += \\"savemsg\\"+i+\\",\\";");
-     pDoc.write("         includemsg = 1;");
-     pDoc.write("      }");
-     pDoc.write("  }");
-     pDoc.write("  if (document.msgcenter.newmsgchk.checked) {");
-     pDoc.write("     msgchk += \\"newmsg\\"+usrctr;");
-     pDoc.write("     includemsg = 1;");
-     pDoc.write("  }");
-     pDoc.write("  imgformname = eval(\\"opener.document.SCORE.mailicon\\"+usrctr);");
-     pDoc.write("  imgformname.src = \\"$iconpath/\\"+((includemsg) ? \\"mailto.gif\\" : \\"mailbkgrd.gif\\");");
-     pDoc.write("  var includemsg = eval(\\"opener.document.SCORE.includemsg\\"+usrctr);");
-     pDoc.write("  includemsg.value = msgchk;");
-     pDoc.write("  self.close()");
-     pDoc.write("}");
-     pDoc.write("<");
-     pDoc.write("/script>");
-     pDoc.write("</head><body bgcolor=white>");
      pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
      pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
-     pDoc.write("<font color=\\"green\\" size=+1>&nbsp;Compose Message for \"+fullname+\"</font><br><br>");
+     pDoc.write("<h1>&nbsp;$html_js_lt{'comp'}\"+fullname+\"<\\/h1>");
-     pDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
+     pDoc.write('<table style="border:1px solid black;"><tr>');
-     pDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
+     pDoc.write("<td><b>$html_js_lt{'incl'}<\\/b><\\/td><td><b>$html_js_lt{'type'}<\\/b><\\/td><td><b>$html_js_lt{'mesa'}<\\/td><\\/tr>");
-     pDoc.write("<td><b>Type</b></td><td><b>Include</b></td><td><b>Message</td></tr>");
  }
      function displaySubject(msg,shwsel) {
      pDoc = pWin.document;
-     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     pDoc.write("<tr>");
-     pDoc.write("<td>Subject</td>");
+     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
-     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
+     pDoc.write("<td>$html_js_lt{'subj'}<\\/td>");
-     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"></td></tr>");
+     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"40\\" maxlength=\\"80\\"><\\/td><\\/tr>");
  }
    function displaySavedMsg(ctr,msg,shwsel) {
      pDoc = pWin.document;
-     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     pDoc.write("<tr>");
-     pDoc.write("<td align=\\"center\\">"+ctr+"</td>");
+     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
-     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"></td>");
+     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
-     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"</textarea></td></tr>");
+     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
  }
    function newMsg(newmsg,shwsel) {
      pDoc = pWin.document;
-     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     pDoc.write("<tr>");
-     pDoc.write("<td align=\\"center\\">New</td>");
+     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
-     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"></td>");
+     pDoc.write("<td align=\\"center\\">$html_js_lt{'new'}<\\/td>");
-     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"</textarea></td></tr>");
+     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
  }
    function msgTail() {
      pDoc = pWin.document;
-     pDoc.write("</table>");
+     //pDoc.write("<\\/table>");
-     pDoc.write("</td></tr></table>&nbsp;");
+     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
-     pDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
+     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
-     pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
+     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
-     pDoc.write("</form>");
+     pDoc.write("<\\/form>");
-     pDoc.write("</body></html>");
+     pDoc.write('$end_page_msg_central');
+     pDoc.close();
  }
  //====================== Script for keyword highlight options ==============
- Line 992  sub sub_page_kw_js {
+ Line 1722  sub sub_page_kw_js {
      var redsel = "";
      var grnsel = "";
      var blusel = "";
-     if (kwclr=="red")   {var redsel="checked"};
+     var txtcol1 = "$js_lt{'col1'}";
-     if (kwclr=="green") {var grnsel="checked"};
+     var txtcol2 = "$js_lt{'col2'}";
-     if (kwclr=="blue")  {var blusel="checked"};
+     var txtcol3 = "$js_lt{'col3'}";
+     var txtsiz1 = "$js_lt{'siz1'}";
+     var txtsiz2 = "$js_lt{'siz2'}";
+     var txtsiz3 = "$js_lt{'siz3'}";
+     var txtsty1 = "$js_lt{'sty1'}";
+     var txtsty2 = "$js_lt{'sty2'}";
+     var txtsty3 = "$js_lt{'sty3'}";
+     if (kwclr=="red")   {var redsel="checked='checked'"};
+     if (kwclr=="green") {var grnsel="checked='checked'"};
+     if (kwclr=="blue")  {var blusel="checked='checked'"};
      var sznsel = "";
      var sz1sel = "";
      var sz2sel = "";
-     if (kwsize=="0")  {var sznsel="checked"};
+     if (kwsize=="0")  {var sznsel="checked='checked'"};
-     if (kwsize=="+1") {var sz1sel="checked"};
+     if (kwsize=="+1") {var sz1sel="checked='checked'"};
-     if (kwsize=="+2") {var sz2sel="checked"};
+     if (kwsize=="+2") {var sz2sel="checked='checked'"};
      var synsel = "";
      var syisel = "";
      var sybsel = "";
-     if (kwstyle=="")    {var synsel="checked"};
+     if (kwstyle=="")    {var synsel="checked='checked'"};
-     if (kwstyle=="<i>") {var syisel="checked"};
+     if (kwstyle=="<i>") {var syisel="checked='checked'"};
-     if (kwstyle=="<b>") {var sybsel="checked"};
+     if (kwstyle=="<b>") {var sybsel="checked='checked'"};
      highlightCentral();
-     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
+     highlightbody('red',txtcol1,redsel,'0',txtsiz1,sznsel,'',txtsty1,synsel);
-     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
+     highlightbody('green',txtcol2,grnsel,'+1',txtsiz2,sz1sel,'<i>',txtsty2,syisel);
-     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
+     highlightbody('blue',txtcol3,blusel,'+2',txtsiz3,sz2sel,'<b>',txtsty3,sybsel);
      highlightend();
      return;
    }
- Line 1022  sub sub_page_kw_js {
+ Line 1761  sub sub_page_kw_js {
      var ypos = (screen.height-330)/2-30;
      ypos = (ypos < 0) ? '0' : ypos;
-     hwdWin = window.open('', 'KeywordHighlightCentral', 'toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
+     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
      hwdWin.focus();
      var hDoc = hwdWin.document;
-     hDoc.write("<html><head>");
+     hDoc.$docopen;
-     hDoc.write("<title>Highlight Central</title>");
+     hDoc.write('$start_page_highlight_central');
-     hDoc.write("<script language=javascript>");
-     hDoc.write("function updateChoice(flag) {");
-     hDoc.write("  opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);");
-     hDoc.write("  opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);");
-     hDoc.write("  opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);");
-     hDoc.write("  opener.document.SCORE.refresh.value = \\"on\\";");
-     hDoc.write("  if (opener.document.SCORE.keywords.value!=\\"\\"){");
-     hDoc.write("     opener.document.SCORE.submit();");
-     hDoc.write("  }");
-     hDoc.write("  self.close()");
-     hDoc.write("}");
-     hDoc.write("<");
-     hDoc.write("/script>");
-     hDoc.write("</head><body bgcolor=white>");
      hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
-     hDoc.write("<font color=\\"green\\" size=+1>&nbsp;Keyword Highlight Options</font><br><br>");
+     hDoc.write("<h1>$html_js_lt{'kehi'}<\\/h1>");
-     hDoc.write("<table border=0 width=100%><tr><td bgcolor=\\"#777777\\">");
+     hDoc.write('<table border="0" width="100%"><tr style="background-color:#A1D676">');
-     hDoc.write("<table border=0 width=100%><tr bgcolor=\\"#ddffff\\">");
+     hDoc.write("<th>$html_js_lt{'txtc'}<\\/th><th>$html_js_lt{'font'}<\\/th><th>$html_js_lt{'fnst'}<\\/th><\\/tr>");
-     hDoc.write("<td><b>Text Color</b></td><td><b>Font Size</b></td><td><b>Font Style</td></tr>");
    }
    function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) {
      var hDoc = hwdWin.document;
-     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+     hDoc.write("<tr>");
      hDoc.write("<td align=\\"left\\">");
-     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"</td>");
+     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+" \\/>&nbsp;"+clrtxt+"<\\/td>");
      hDoc.write("<td align=\\"left\\">");
-     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"</td>");
+     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+" \\/>&nbsp;"+sztxt+"<\\/td>");
      hDoc.write("<td align=\\"left\\">");
-     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"</td>");
+     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+" \\/>&nbsp;"+sytxt+"<\\/td>");
-     hDoc.write("</tr>");
+     hDoc.write("<\\/tr>");
    }
    function highlightend() {
      var hDoc = hwdWin.document;
-     hDoc.write("</table>");
+     hDoc.write("<\\/table><br \\/>");
-     hDoc.write("</td></tr></table>&nbsp;");
+     hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\" \\/>&nbsp;&nbsp;");
-     hDoc.write("<input type=\\"button\\" value=\\"Save\\" onClick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
+     hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\" \\/><br /><br />");
-     hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onClick=\\"self.close()\\"><br><br>");
+     hDoc.write("<\\/form>");
-     hDoc.write("</form>");
+     hDoc.write('$end_page_highlight_central');
-     hDoc.write("</body></html>");
+     hDoc.close();
    }
- </script>
  SUBJAVASCRIPT
  }
+ sub get_increment {
+     my $increment = $env{'form.increment'};
+     if ($increment != 1 && $increment != .5 && $increment != .25 &&
+         $increment != .1) {
+         $increment = 1;
+     }
+     return $increment;
+ }
+ sub gradeBox_start {
+     return (
+         &Apache::loncommon::start_data_table()
+        .&Apache::loncommon::start_data_table_header_row()
+        .'<th>'.&mt('Part').'</th>'
+        .'<th>'.&mt('Points').'</th>'
+        .'<th>&nbsp;</th>'
+        .'<th>'.&mt('Assign Grade').'</th>'
+        .'<th>'.&mt('Weight').'</th>'
+        .'<th>'.&mt('Grade Status').'</th>'
+        .&Apache::loncommon::end_data_table_header_row()
+     );
+ }
+ sub gradeBox_end {
+     return (
+         &Apache::loncommon::end_data_table()
+     );
+ }
  #--- displays the grading box, used in essay type problem and grading by page/sequence
  sub gradeBox {
      my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
+     my $checkIcon = '<img alt="'.&mt('Check Mark').
-     my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
+ 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
- 	'/check.gif" height="16" border="0" />';
      my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
-     my $wgtmsg = ($wgt > 0 ? '(problem weight)' :
+     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)')
- 		  '<font color="red">problem weight assigned by computer</font>');
+                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
      $wgt       = ($wgt > 0 ? $wgt : '1');
      my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
- 		  '' : $$record{'resource.'.$partid.'.awarded'}*$wgt);
+ 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
-     my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
+     my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
+     my $display_part= &get_display_part($partid,$symb);
-     $result.='<table border="0"><tr><td>'.
+     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
- 	'<b>Part </b>'.$partid.' <b>Points: </b></td><td>'."\n";
+ 				       [$partid]);
+     my $aggtries = $$record{'resource.'.$partid.'.tries'};
+     if ($last_resets{$partid}) {
+         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
+     }
+     my $result=&Apache::loncommon::start_data_table_row();
      my $ctr = 0;
-     $result.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
+     my $thisweight = 0;
-     while ($ctr<=$wgt) {
+     my $increment = &get_increment();
- 	$result.= '<td><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
- 	    'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
+     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
- 	    $ctr.')" value="'.$ctr.'" '.
+     while ($thisweight<=$wgt) {
- 	    ($score eq $ctr ? 'checked':'').' /> '.$ctr."</td>\n";
+ 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
- 	$result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
+         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
+ 	    $thisweight.')" value="'.$thisweight.'" '.
+ 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
+ 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
+         $thisweight += $increment;
  	$ctr++;
      }
-     $result.='</tr></table>';
+     $radio.='</tr></table>';
-     $result.='</td><td>&nbsp;<b>or</b>&nbsp;</td>'."\n";
+     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
-     $result.='<td><input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
  	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
- 	'onChange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
+ 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
  	$wgt.')" /></td>'."\n";
-     $result.='<td>/'.$wgt.' '.$wgtmsg.
+     $line.='<td>/'.$wgt.' '.$wgtmsg.
  	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
- 	' </td><td>'."\n";
+ 	' </td>'."\n";
+     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
-     $result.='<select name="GD_SEL'.$counter.'_'.$partid.'" '.
+ 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
- 	'onChange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
      if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
- 	$result.='<option> </option>'.
+ 	$line.='<option></option>'.
- 	    '<option selected="on">excused</option></select>'."\n";
+ 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
      } else {
- 	$result.='<option selected="on"> </option>'.
+ 	$line.='<option selected="selected"></option>'.
- 	    '<option>excused</option></select>'."\n";
+ 	    '<option value="excused" >'.&mt('excused').'</option>';
      }
-     $result.="&nbsp&nbsp\n";
+     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
+     $result .=
+ 	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
+     $result.=&Apache::loncommon::end_data_table_row();
+     $result.=&Apache::loncommon::start_data_table_row().'<td colspan="6">';
      $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
  	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
  	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
- 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n";
+ 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
-     $result.='</td></tr></table>'."\n";
+         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
+         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
+         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
+         $aggtries.'" />'."\n";
+     my $res_error;
+     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
+     $result.='</td>'.&Apache::loncommon::end_data_table_row();
+     if ($res_error) {
+         return &navmap_errormsg();
+     }
      return $result;
  }
+ sub handback_box {
+     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error_pointer) = @_;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error_pointer);
+     my (@respids);
+     my @part_response_id = &flatten_responseType($responseType);
+     foreach my $part_response_id (@part_response_id) {
+     	my ($part,$resp) = @{ $part_response_id };
+         if ($part eq $partid) {
+             push(@respids,$resp);
+         }
+     }
+     my $result;
+     foreach my $respid (@respids) {
+ 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
+ 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
+ 	next if (!@$files);
+ 	my $file_counter = 0;
+ 	foreach my $file (@$files) {
+ 	    if ($file =~ /\/portfolio\//) {
+                 $file_counter++;
+     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
+     	        my ($name,$version,$ext) = &Apache::lonnet::file_name_version_ext($file_disp);
+     	        $file_disp = "$name.$ext";
+     	        $file = $file_path.$file_disp;
+     	        $result.=&mt('Return commented version of [_1] to student.',
+     			 '<span class="LC_filename">'.$file_disp.'</span>');
+     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
+     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
+ 	    }
+ 	}
+         if ($file_counter) {
+             $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
+                        '<span class="LC_info">'.
+                        '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
+         }
+     }
+     return $result;
+ }
  sub show_problem {
-     my ($request,$symb,$uname,$udom,$removeform,$viewon) = @_;
+     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
-     my $rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
+     my $rendered;
- 						      $ENV{'request.course.id'});
+     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
+     &Apache::lonxml::remember_problem_counter();
+     if ($mode eq 'both' or $mode eq 'text') {
+ 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
+ 						       $env{'request.course.id'},
+ 						       undef,\%form);
+     }
      if ($removeform) {
  	$rendered=~s|<form(.*?)>||g;
  	$rendered=~s|</form>||g;
- 	$rendered=~s|name="submit"|name="would_have_been_submit"|g;
+ 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
+     }
+     my $companswer;
+     if ($mode eq 'both' or $mode eq 'answer') {
+ 	&Apache::lonxml::restore_problem_counter();
+ 	$companswer=
+ 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
+ 						    $env{'request.course.id'},
+ 						    %form);
      }
-     my $companswer=&Apache::loncommon::get_student_answers($symb,$uname,$udom,
- 							   $ENV{'request.course.id'});
      if ($removeform) {
  	$companswer=~s|<form(.*?)>||g;
  	$companswer=~s|</form>||g;
- 	$rendered=~s|name="submit"|name="would_have_been_submit"|g;
+ 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
+     }
+     my $renderheading = &mt('View of the problem');
+     my $answerheading = &mt('Correct answer');
+     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+         my $stu_fullname = $env{'form.fullname'};
+         if ($stu_fullname eq '') {
+             $stu_fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
+         }
+         my $forwhom = &nameUserString(undef,$stu_fullname,$uname,$udom);
+         if ($forwhom ne '') {
+             $renderheading = &mt('View of the problem for[_1]',$forwhom);
+             $answerheading = &mt('Correct answer for[_1]',$forwhom);
+         }
+     }
+     $rendered=
+         '<div class="LC_Box">'
+        .'<h3 class="LC_hcell">'.$renderheading.'</h3>'
+        .$rendered
+        .'</div>';
+     $companswer=
+         '<div class="LC_Box">'
+        .'<h3 class="LC_hcell">'.$answerheading.'</h3>'
+        .$companswer
+        .'</div>';
+     my $result;
+     if ($mode eq 'both') {
+         $result=$rendered.$companswer;
+     } elsif ($mode eq 'text') {
+         $result=$rendered;
+     } elsif ($mode eq 'answer') {
+         $result=$companswer;
      }
-     my $result.='<table border="0" width="100%"><tr><td bgcolor="#777777">';
-     $result.='<table border="0" width="100%">';
-     $result.='<tr><td bgcolor="#e6ffff"><b> View of the problem - '.$ENV{'form.fullname'}.
- 	'</b></td></tr>' if ($viewon);
-     $result.='<tr><td bgcolor="#ffffff">'.$rendered.'<br />';
-     $result.='<b>Correct answer:</b><br />'.$companswer;
-     $result.='</td></tr></table>';
-     $result.='</td></tr></table><br />';
      return $result;
  }
- # --------------------------- show submissions of a student, option to grade
+ sub files_exist {
- sub submission {
+     my ($r, $symb) = @_;
-     my ($request,$counter,$total) = @_;
+     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
+     foreach my $student (@students) {
+         my ($uname,$udom,$fullname) = split(/:/,$student);
+         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
+ 					      $udom,$uname);
+         my ($string,$timestamp)= &get_last_submission(\%record);
+         foreach my $submission (@$string) {
+             my ($partid,$respid) =
+ 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
+             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
+ 					   \%record);
+             return 1 if (@$files);
+         }
+     }
+     return 0;
+ }
+ sub download_all_link {
+     my ($r,$symb) = @_;
+     unless (&files_exist($r, $symb)) {
+         $r->print(&mt('There are currently no submitted documents.'));
+         return;
+     }
+     my $all_students =
+ 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
+     my $parts =
+ 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
+     my $identifier = &Apache::loncommon::get_cgi_id();
+     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
+                              'cgi.'.$identifier.'.symb' => $symb,
+                              'cgi.'.$identifier.'.parts' => $parts,});
+     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
+ 	      &mt('Download All Submitted Documents').'</a>');
+     return;
+ }
+ sub submit_download_link {
+     my ($request,$symb) = @_;
+     if (!$symb) { return ''; }
+ #FIXME: Figure out which type of problem this is and provide appropriate download
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
+     if (ref($res_error)) {
+         if ($$res_error) {
+             $request->print(&mt('An error occurred retrieving response types'));
+             return;
+         }
+     }
+     my ($numupload,$numessay) = (0,0);
+     if (ref($responseType) eq 'HASH') {
+         foreach my $part (sort(keys(%$responseType))) {
+             foreach my $id (sort(keys(%{ $responseType->{$part} }))) {
+                 my $responsetype = $responseType->{$part}->{$id};
+                 if ($responsetype eq 'essay') {
+                     my $uploadedfiletypes =
+                         &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes",$symb);
+                     if ($uploadedfiletypes) {
+                         $numupload++;
+                     } else {
+                         $numessay++;
+                     }
+                 }
+             }
+         }
+     }
+     if (($numupload) || ($numessay)) {
+         my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
+         my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
+         my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
+         (undef,undef,my $fullname) = &getclasslist($getsec,1,$getgroup,$symb,$submitonly,1);
+         if (ref($fullname) eq 'HASH') {
+             my @students = map { $_.':'.$fullname->{$_} } (keys(%{$fullname}));
+             if (@students) {
+                 @{$env{'form.stuinfo'}} = @students;
+                 if ($numupload) {
+                     &download_all_link($request,$symb);
+                 }
+ # FIXME Need to provide a mechanism to download essays, i.e., if $numessay > 0
+ # Needs to omit user's identity if resource instance is for an anonymous survey.
+             } else {
+                 $request->print(&mt('No students match the criteria you selected'));
+             }
+         } else {
+             $request->print(&mt('Could not retrieve student information'));
+         }
+     } else {
+         $request->print(&mt('No essayresponse items found'));
+     }
+     return;
+ }
-     (my $url=$ENV{'form.url'})=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+ sub build_section_inputs {
-     my ($uname,$udom)     = ($ENV{'form.student'},$ENV{'form.userdom'});
+     my $section_inputs;
-     $udom = ($udom eq '' ? $ENV{'user.domain'} : $udom); #has form.userdom changed for a student?
+     if ($env{'form.section'} eq '') {
-     my $usec = &Apache::lonnet::getsection($udom,$uname,$ENV{'request.course.id'});
+         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
-     $ENV{'form.fullname'} = &get_fullname ($uname,$udom) if $ENV{'form.fullname'} eq '';
+     } else {
+         my @sections = &Apache::loncommon::get_env_multiple('form.section');
+         foreach my $section (@sections) {
+             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
+         }
+     }
+     return $section_inputs;
+ }
-     my $symb=($ENV{'form.symb'} ne '' ? $ENV{'form.symb'} : (&Apache::lonnet::symbread($url)));
+ # --------------------------- show submissions of a student, option to grade
-     if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
+ sub submission {
+     my ($request,$counter,$total,$symb) = @_;
+     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
+     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
+     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
+     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
+     my $probtitle=&Apache::lonnet::gettitle($symb);
+     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
+     my $is_tool = ($symb =~ /ext\.tool$/);
+     my ($essayurl,%coursedesc_by_cid);
      if (!&canview($usec)) {
- 	$request->print('<font color="red">Unable to view requested student.('.
+         $request->print(
- 			$uname.$udom.$usec.$ENV{'request.course.id'}.')</font>');
+             '<span class="LC_warning">'.
- 	$request->print(&show_grading_menu_form($symb,$url));
+             &mt('Unable to view requested student.').
+             ' '.&mt('([_1] in section [_2] in course id [_3])',
+                         $uname.':'.$udom,$usec,$env{'request.course.id'}).
+             '</span>');
  	return;
      }
-     $ENV{'form.lastSub'} = ($ENV{'form.lastSub'} eq '' ? 'all' : $ENV{'form.lastSub'});
+     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
-     my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');
+     unless ($is_tool) {
+         if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
+         if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
+     }
+     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
+     my $checkIcon = '<img alt="'.&mt('Check Mark').
+ 	'" src="'.$request->dir_config('lonIconsURL').
+ 	'/check.gif" height="16" border="0" />';
      # header info
      if ($counter == 0) {
  	&sub_page_js($request);
- 	&sub_page_kw_js($request) if ($ENV{'form.handgrade'} eq 'yes');
+ 	&sub_page_kw_js($request);
- 	$ENV{'form.probTitle'} = $ENV{'form.probTitle'} eq '' ?
- 	    &Apache::lonnet::gettitle($symb) : $ENV{'form.probTitle'};
- 	$request->print('<h3>&nbsp;<font color="#339933">Submission Record</font></h3>'."\n".
- 			'<font size=+1>&nbsp;<b>Resource: </b>'.$ENV{'form.probTitle'}.'</font>'."\n");
- 	if ($ENV{'form.handgrade'} eq 'no') {
- 	    my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
- 		'/check.gif" height="16" border="0" />';
- 	    my $checkMark='<br /><br />&nbsp;<b>Note:</b> Part(s) graded correct by the computer is marked with a '.
- 		$checkIcon.' symbol.'."\n";
- 	    $request->print($checkMark);
- 	}
  	# option to display problem, only once else it cause problems
          # with the form later since the problem has a form.
- 	if ($ENV{'form.vProb'} eq 'yes' or !$ENV{'form.vProb'}) {
+ 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
- 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1));
+ 	    my $mode;
+ 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
+ 		$mode='both';
+ 	    } elsif ($env{'form.vProb'} eq 'yes') {
+ 		$mode='text';
+ 	    } elsif ($env{'form.vAns'} eq 'yes') {
+ 		$mode='answer';
+ 	    }
+ 	    &Apache::lonxml::clear_problem_counter();
+ 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
  	}
- 	# kwclr is the only variable that is guaranteed to be non blank
+ 	# kwclr is the only variable that is guaranteed not to be blank
          # if this subroutine has been called once.
  	my %keyhash = ();
- 	if ($ENV{'form.kwclr'} eq '' && $ENV{'form.handgrade'} eq 'yes') {
+ #	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
+         if (1) {
  	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
- 					     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
+ 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
- 					     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
+ 					     $env{'course.'.$env{'request.course.id'}.'.num'});
- 	    my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
- 	    $ENV{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
- 	    $ENV{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
- 	    $ENV{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
- 	    $ENV{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
- 	    $ENV{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ?
- 		$keyhash{$symb.'_subject'} : $ENV{'form.probTitle'};
- 	    $ENV{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
- 	}
+ 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
- 	my $overRideScore = $ENV{'form.overRideScore'} eq '' ? 'no' : $ENV{'form.overRideScore'};
+ 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
+ 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
- 	$request->print('<form action="/adm/grades" method="post" name="SCORE">'."\n".
+ 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
+ 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
+ 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ?
+ 		$keyhash{$symb.'_subject'} : $probtitle;
+ 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
+ 	}
+ 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
+ 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+ 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
  			'<input type="hidden" name="command"    value="handgrade" />'."\n".
- 			'<input type="hidden" name="saveState"  value="'.$ENV{'form.saveState'}.'" />'."\n".
+ 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
- 			'<input type="hidden" name="Status"     value="'.$ENV{'form.Status'}.'" />'."\n".
  			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
- 			'<input type="hidden" name="probTitle"  value="'.$ENV{'form.probTitle'}.'" />'."\n".
  			'<input type="hidden" name="refresh"    value="off" />'."\n".
  			'<input type="hidden" name="studentNo"  value="" />'."\n".
  			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
- 			'<input type="hidden" name="symb"       value="'.$symb.'" />'."\n".
+ 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
- 			'<input type="hidden" name="url"        value="'.$url.'" />'."\n".
+ 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
- 			'<input type="hidden" name="showgrading" value="'.$ENV{'form.showgrading'}.'" />'."\n".
+ 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
- 			'<input type="hidden" name="vProb"      value="'.$ENV{'form.vProb'}.'" />'."\n".
+ 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
- 			'<input type="hidden" name="lastSub"    value="'.$ENV{'form.lastSub'}.'" />'."\n".
+ 			&build_section_inputs().
- 			'<input type="hidden" name="section"    value="'.$ENV{'form.section'}.'">'."\n".
+ 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
- 			'<input type="hidden" name="submitonly" value="'.$ENV{'form.submitonly'}.'">'."\n".
- 			'<input type="hidden" name="response"   value="'.$ENV{'form.response'}.'">'."\n".
- 			'<input type="hidden" name="handgrade"  value="'.$ENV{'form.handgrade'}.'">'."\n".
- 			'<input type="hidden" name="keywords"   value="'.$ENV{'form.keywords'}.'" />'."\n".
- 			'<input type="hidden" name="kwclr"      value="'.$ENV{'form.kwclr'}.'" />'."\n".
- 			'<input type="hidden" name="kwsize"     value="'.$ENV{'form.kwsize'}.'" />'."\n".
- 			'<input type="hidden" name="kwstyle"    value="'.$ENV{'form.kwstyle'}.'" />'."\n".
- 			'<input type="hidden" name="msgsub"     value="'.$ENV{'form.msgsub'}.'" />'."\n".
- 			'<input type="hidden" name="savemsgN"   value="'.$ENV{'form.savemsgN'}.'" />'."\n".
  			'<input type="hidden" name="NCT"'.
- 			' value="'.($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : $total+1).'" />'."\n");
+ 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
+ #	if ($env{'form.handgrade'} eq 'yes') {
+         if (1) {
+ 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
+ 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
+ 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
+ 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
+ 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
+ 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
+ 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
+ 	    }
+ 	}
  	my ($cts,$prnmsg) = (1,'');
- 	while ($cts <= $ENV{'form.savemsgN'}) {
+ 	while ($cts <= $env{'form.savemsgN'}) {
  	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
- 		($keyhash{$symb.'_savemsg'.$cts} eq '' ?
+ 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ?
- 		 &Apache::lonfeedback::clear_out_html($ENV{'form.savemsg'.$cts}) :
+ 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
  		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
- 		'" />'."\n";
+ 		'" />'."\n".
+ 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
  	    $cts++;
  	}
  	$request->print($prnmsg);
- 	if ($ENV{'form.handgrade'} eq 'yes' && $ENV{'form.showgrading'} eq 'yes') {
+ #	if ($env{'form.handgrade'} eq 'yes') {
+         unless ($is_tool) {
+             my %lt = &Apache::lonlocal::texthash(
+                           keyh => 'Keyword Highlighting for Essays',
+                           keyw => 'Keyword Options',
+                           list => 'List',
+                           past => 'Paste Selection to List',
+                           high => 'Highlight Attribute',
+                      );
  #
  # Print out the keyword options line
  #
- 	    $request->print(<<KEYWORDS);
+ 	    $request->print(
- &nbsp;<b>Keyword Options:</b>&nbsp;
+                 '<div class="LC_columnSection">'
- <a href="javascript:keywords(document.SCORE.keywords)"; TARGET=_self>List</a>&nbsp; &nbsp;
+                .'<fieldset><legend>'.$lt{'keyh'}.'</legend>'
- <a href="#" onMouseDown="javascript:getSel(); return false"
+                .&Apache::lonhtmlcommon::funclist_from_array(
-  CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
+                     ['<a href="javascript:keywords(document.SCORE);" target="_self">'.$lt{'list'}.'</a>',
- <a href="javascript:kwhighlight()"; TARGET=_self>Highlight Attribute</a><br /><br />
+                      '<a href="#" onmousedown="javascript:getSel(); return false"
- KEYWORDS
+  class="page">'.$lt{'past'}.'</a>',
+                      '<a href="javascript:kwhighlight();" target="_self">'.$lt{'high'}.'</a>'],
+                     {legend => $lt{'keyw'}})
+                .'</fieldset></div>'
+             );
  #
  # Load the other essays for similarity check
  #
-             my $essayurl=&Apache::lonnet::declutter($url);
+             (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
- 	    my ($adom,$aname,$apath)=($essayurl=~/^(\w+)\/(\w+)\/(.*)$/);
+             if ($essayurl eq 'lib/templates/simpleproblem.problem') {
- 	    $apath=&Apache::lonnet::escape($apath);
+                 my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
- 	    $apath=~s/\W/\_/gs;
+                 my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
- 	    %oldessays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
+                 if ($cdom ne '' && $cnum ne '') {
+                     my ($map,$id,$res) = &Apache::lonnet::decode_symb($symb);
+                     if ($map =~ m{^\Quploaded/$cdom/$cnum/\E(default(?:|_\d+)\.(?:sequence|page))$}) {
+                         my $apath = $1.'_'.$id;
+                         $apath=~s/\W/\_/gs;
+                         &init_old_essays($symb,$apath,$cdom,$cnum);
+                     }
+                 }
+             } else {
+ 	        my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
+ 	        $apath=&escape($apath);
+ 	        $apath=~s/\W/\_/gs;
+                 &init_old_essays($symb,$apath,$adom,$aname);
+             }
          }
      }
-     if ($ENV{'form.vProb'} eq 'all') {
+ # This is where output for one specific student would start
- 	$request->print('<br /><br /><br />') if ($counter > 0);
+     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
- 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1));
+     $request->print(
+         "\n\n"
+        .'<div class="LC_grade_show_user'.$add_class.'">'
+        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
+        ."\n"
+     );
+     # Show additional functions if allowed
+     if ($perm{'vgr'}) {
+         $request->print(
+             &Apache::loncommon::track_student_link(
+                 'View recent activity',
+                 $uname,$udom,'check')
+            .' '
+         );
+     }
+     if ($perm{'opa'}) {
+         $request->print(
+             &Apache::loncommon::pprmlink(
+                 &mt('Set/Change parameters'),
+                 $uname,$udom,$symb,'check'));
+     }
+     # Show Problem
+     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
+ 	my $mode;
+ 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
+ 	    $mode='both';
+ 	} elsif ($env{'form.vProb'} eq 'all' ) {
+ 	    $mode='text';
+ 	} elsif ($env{'form.vAns'} eq 'all') {
+ 	    $mode='answer';
+ 	}
+ 	&Apache::lonxml::clear_problem_counter();
+ 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
+     }
+     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+     if ($res_error) {
+         $request->print(&navmap_errormsg());
+         return;
      }
-     my %record = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$udom,$uname);
-     my ($partlist,$handgrade) = &response_type($url);
      # Display student info
      $request->print(($counter == 0 ? '' : '<br />'));
-     my $result='<table border="0" width=100%><tr><td bgcolor="#777777">'."\n".
- 	'<table border="0" width=100%><tr bgcolor="#edffff"><td>'."\n";
-     $result.='<b>Fullname: </b>'.$ENV{'form.fullname'}.
+     my $boxtitle = &mt('Submissions');
- 	'<font color="#999999">&nbsp; &nbsp;Username: '.$uname.
+     if ($is_tool) {
- 	($ENV{'user.domain'} eq $udom ? '' : ' ('.$udom.')').'</font><br />'."\n";
+         $boxtitle = &mt('Transactions')
+     }
+     my $result='<div class="LC_Box">'
+               .'<h3 class="LC_hcell">'.$boxtitle.'</h3>';
      $result.='<input type="hidden" name="name'.$counter.
- 	'" value="'.$ENV{'form.fullname'}.'" />'."\n";
+              '" value="'.$env{'form.fullname'}.'" />'."\n";
+ #    if ($env{'form.handgrade'} eq 'no') {
+     unless ($is_tool) {
+         $result.='<p class="LC_info">'
+                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
+                 ."</p>\n";
+     }
      # If any part of the problem is an essay-response (handgraded), then check for collaborators
-     my @col_fullnames;
+     my $fullname;
-     my ($classlist,$fullname);
+     my $col_fullnames = [];
-     if ($ENV{'form.handgrade'} eq 'yes') {
+ #    if ($env{'form.handgrade'} eq 'yes') {
- 	($classlist,undef,$fullname) = &getclasslist('all','0');
+     unless ($is_tool) {
- 	for (keys (%$handgrade)) {
+ 	(my $sub_result,$fullname,$col_fullnames)=
- 	    my $ncol = &Apache::lonnet::EXT('resource.'.$_.
+ 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
- 					    '.maxcollaborators',
+ 				 $counter);
-                                             $symb,$udom,$uname);
+ 	$result.=$sub_result;
- 	    next if ($ncol <= 0);
-             s/\_/\./g;
-             next if ($record{'resource.'.$_.'.collaborators'} eq '');
-             my @goodcollaborators = ();
-             my @badcollaborators  = ();
- 	    foreach (split(/,?\s+/,$record{'resource.'.$_.'.collaborators'})) {
- 		$_ =~ s/[\$\^\(\)]//g;
- 		next if ($_ eq '');
- 		my ($co_name,$co_dom) = split /\@|:/,$_;
- 		$co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
- 		next if ($co_name eq $uname && $co_dom eq $udom);
- 		# Doing this grep allows 'fuzzy' specification
- 		my @Matches = grep /^$co_name:$co_dom$/i,keys %$classlist;
- 		if (! scalar(@Matches)) {
- 		    push @badcollaborators,$_;
- 		} else {
- 		    push @goodcollaborators, @Matches;
- 		}
- 	    }
-             if (scalar(@goodcollaborators) != 0) {
-                 $result.='<b>Collaborators: </b>';
-                 foreach (@goodcollaborators) {
- 		    my ($lastname,$givenn) = split(/,/,$$fullname{$_});
- 		    push @col_fullnames, $givenn.' '.$lastname;
- 		    $result.=$$fullname{$_}.'&nbsp; &nbsp; &nbsp;';
- 		}
-                 $result.='<br />'."\n";
- 		$result.='<input type="hidden" name="collaborator'.$counter.
- 		    '" value="'.(join ':',@goodcollaborators).'" />'."\n";
- 	    }
- 	    if (scalar(@badcollaborators) > 0) {
- 		$result.='<table border="0"><tr bgcolor="#ffbbbb"><td>';
- 		$result.='This student has submitted ';
- 		$result.=(scalar(@badcollaborators) == 1) ? 'an invalid collaborator' : 'invalid collaborators';
- 		$result .= ': '.join(', ',@badcollaborators);
- 		$result .= '</td></tr></table>';
- 	    }
- 	    if (scalar(@badcollaborators > $ncol)) {
- 		$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>';
- 		$result .= 'This student has submitted too many '.
- 		    'collaborators.  Maximum is '.$ncol.'.';
- 		$result .= '</td></tr></table>';
- 	    }
- 	}
      }
      $request->print($result."\n");
      # print student answer/submission
-     # Options are (1) Handgaded submission only
+     # Options are (1) Handgraded submission only
      #             (2) Last submission, includes submission that is not handgraded
      #                  (for multi-response type part)
      #             (3) Last submission plus the parts info
      #             (4) The whole record for this student
-     if ($ENV{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
- 	if ($ENV{'form.'.$uname.':'.$udom.':submitted_by'}) {
+     my ($string,$timestamp)= &get_last_submission(\%record,$is_tool);
- 	    my $submitby=''.
- 		'<b>Collaborative submission by: </b>'.
+     my $lastsubonly;
- 		'<a href="javascript:viewSubmitter(\''.
- 		$ENV{'form.'.$uname.':'.$udom.':submitted_by'}.
+     if ($$timestamp eq '') {
- 		'\')"; TARGET=_self>'.
+         $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>';
- 		$$fullname{$ENV{'form.'.$uname.':'.$udom.':submitted_by'}}.'</a>';
+     } elsif ($is_tool) {
- 	    $request->print($submitby);
+         $lastsubonly =
- 	} else {
+             '<div class="LC_grade_submissions_body">'
- 	    my ($string,$timestamp)= &get_last_submission (\%record);
+            .'<b>'.&mt('Date Grade Passed Back:').'</b> '.$$timestamp."</div>\n";
- 	    my $lastsubonly=''.
+     } else {
- 		($$timestamp eq '' ? '' : '<b>Date Submitted:</b> '.
+         $lastsubonly =
- 		 $$timestamp)."</td></tr>\n";
+             '<div class="LC_grade_submissions_body">'
- 	    if ($$timestamp eq '') {
+            .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
- 		$lastsubonly.='<tr><td bgcolor="#ffffe6">'.$$string[0];
- 	    } else {
+ 	my %seenparts;
- 		for my $part (sort keys(%$handgrade)) {
+ 	my @part_response_id = &flatten_responseType($responseType);
- 		    my ($responsetype,$foo) = split(/:/,$$handgrade{$part});
+ 	foreach my $part (@part_response_id) {
- 		    my ($partid,$respid) = split(/_/,$part);
+ 	    next if ($env{'form.lastSub'} eq 'hdgrade'
- 		    if (!exists($record{'resource.'.$partid.'.'.$respid.'.submission'})) {
+ 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
- 			$lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part '.
- 			    $partid.'</b> <font color="#999999">( ID '.$respid.
+ 	    my ($partid,$respid) = @{ $part };
- 			    ' )</font>&nbsp; &nbsp;Nothing submitted<br /><br />';
+ 	    my $display_part=&get_display_part($partid,$symb);
-  		    } else {
+ 	    if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
- 			foreach (@$string) {
+ 		if (exists($seenparts{$partid})) { next; }
- 			    my ($partid,$respid) = /^resource\.(\w+)\.(\w+)\.submission/;
+ 		$seenparts{$partid}=1;
- 			    if ($part eq ($partid.'_'.$respid)) {
+                 $request->print(
- 				my ($ressub,$subval) = split(/:/,$_,2);
+                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
-                             # Similarity check
+                     ' <b>'.&mt('Collaborative submission by: [_1]',
- 				my $similar='';
+                                '<a href="javascript:viewSubmitter(\''.
- 				my ($oname,$odom,$ocrsid,$oessay,$osim)=&most_similar($uname,$udom,$subval);
+                                $env{"form.$uname:$udom:$partid:submitted_by"}.
- 				if ($osim) {
+                                '\');" target="_self">'.
- 				    $osim=int($osim*100.0);
+                                $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
- 				    $similar='<hr /><h3><font color="#FF0000">Essay is '.$osim.
+                     '<br />');
- 					'% similar to an essay by '.&Apache::loncommon::plainname($oname,$odom).
+ 		next;
- 					'</font></h3><blockquote><i>'.
- 					&keywords_highlight($oessay).'</i></blockquote><hr />';
- 				}
- 				$lastsubonly.='<tr><td bgcolor="#ffffe6"><b>Part '.
- 				    $partid.'</b> <font color="#999999">( ID '.$respid.
- 				    ' )</font>&nbsp; &nbsp;'.
- 				    ($record{"resource.$partid.$respid.uploadedurl"}?
- 				     '<a href="'.
- 				     &Apache::lonnet::tokenwrapper($record{"resource.$partid.$respid.uploadedurl"}).
- 				     '"><img src="/adm/lonIcons/unknown.gif" border=0"> File uploaded by student</a> '.
- 				     '<font color="red" size="1">Like all files provided by users, '.
- 				     'this file may contain virusses</font><br />':'').
- 				     '<b>Submitted Answer: </b>'.($responsetype =~ /^(essay|option)$/ ?
- 								  '<blockquote>' : '').
- 				     &cleanRecord(&keywords_highlight($subval),$responsetype).
- 				     ($responsetype =~ /^(essay|option)$/ ? '</blockquote><br />' :
- 				      '<br /><br />').$similar."\n"
- 				     if ($ENV{'form.lastSub'} eq 'lastonly' ||
- 					 ($ENV{'form.lastSub'} eq 'hdgrade' &&
- 					  $$handgrade{$part} =~ /:yes$/));
- 			    }
- 			}
- 		    }
  		}
+ 	    my $responsetype = $responseType->{$partid}->{$respid};
+ 	    if (!exists($record{"resource.$partid.$respid.submission"})) {
+                 $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
+                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                     ' <span class="LC_internal_info">'.
+                     '('.&mt('Response ID: [_1]',$respid).')'.
+                     '</span>&nbsp; &nbsp;'.
+ 	       	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
+ 		next;
  	    }
- 	    $lastsubonly.='</td></tr><tr bgcolor="#ffffff"><td>'."\n";
+ 	    foreach my $submission (@$string) {
- 	    $request->print($lastsubonly);
+ 		my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
+ 		if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
+ 		my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
+ 		# Similarity check
+                 my $similar='';
+                 my ($type,$trial,$rndseed);
+                 if ($hide eq 'rand') {
+                     $type = 'randomizetry';
+                     $trial = $record{"resource.$partid.tries"};
+                     $rndseed = $record{"resource.$partid.rndseed"};
+                 }
+ 	        if ($env{'form.checkPlag'}) {
+     		    my ($oname,$odom,$ocrsid,$oessay,$osim)=
+ 		        &most_similar($uname,$udom,$symb,$subval);
+ 		    if ($osim) {
+ 			$osim=int($osim*100.0);
+                         if ($hide eq 'anon') {
+                             $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
+                                      &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
+                         } else {
+ 			    $similar='<hr />';
+                             if ($essayurl eq 'lib/templates/simpleproblem.problem') {
+                                 $similar .= '<h3><span class="LC_warning">'.
+                                             &mt('Essay is [_1]% similar to an essay by [_2]',
+                                                 $osim,
+                                                 &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')').
+                                             '</span></h3>';
+                             } else {
+                                 my %old_course_desc;
+                                 if ($ocrsid ne '') {
+                                     if (ref($coursedesc_by_cid{$ocrsid}) eq 'HASH') {
+                                         %old_course_desc = %{$coursedesc_by_cid{$ocrsid}};
+                                     } else {
+                                         my $args;
+                                         if ($ocrsid ne $env{'request.course.id'}) {
+                                             $args = {'one_time' => 1};
+                                         }
+                                         %old_course_desc =
+                                             &Apache::lonnet::coursedescription($ocrsid,$args);
+                                         $coursedesc_by_cid{$ocrsid} = \%old_course_desc;
+                                     }
+                                     $similar .=
+                                         '<h3><span class="LC_warning">'.
+                                         &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
+                                             $osim,
+                                             &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
+                                             $old_course_desc{'description'},
+                                             $old_course_desc{'num'},
+                                             $old_course_desc{'domain'}).
+                                         '</span></h3>';
+                                 } else {
+                                     $similar .=
+                                         '<h3><span class="LC_warning">'.
+                                         &mt('Essay is [_1]% similar to an essay by [_2] in an unknown course',
+                                             $osim,
+                                             &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')').
+                                         '</span></h3>';
+                                 }
+                             }
+                             $similar .= '<blockquote><i>'.
+                                         &keywords_highlight($oessay).
+                                         '</i></blockquote><hr />';
+                         }
+ 	            }
+ 		}
+ 		my $order=&get_order($partid,$respid,$symb,$uname,$udom,
+                                      undef,$type,$trial,$rndseed);
+                 if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' &&
+ 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
+ 		    my $display_part=&get_display_part($partid,$symb);
+                     $lastsubonly.='<div class="LC_grade_submission_part">'.
+                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                         ' <span class="LC_internal_info">'.
+                         '('.&mt('Response ID: [_1]',$respid).')'.
+                         '</span>&nbsp; &nbsp;';
+ 		    my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
+ 		    if (@$files) {
+                         if ($hide eq 'anon') {
+                             $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
+                         } else {
+                             $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
+                                         .'<br /><span class="LC_warning">';
+                             if(@$files == 1) {
+                                 $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
+                             } else {
+                                 $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
+                             }
+                             $lastsubonly .= '</span>';
+                             foreach my $file (@$files) {
+                                 &Apache::lonnet::allowuploaded('/adm/grades',$file);
+                                 $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
+                             }
+                         }
+ 			$lastsubonly.='<br />';
+                     }
+                     if ($hide eq 'anon') {
+                         $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>';
+                     } else {
+              	        $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
+                         if ($draft) {
+                             $lastsubonly.= ' <span class="LC_warning">'.&mt('Draft Copy').'</span>';
+                         }
+                         $subval =
+ 			    &cleanRecord($subval,$responsetype,$symb,$partid,
+ 					 $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
+                         if ($responsetype eq 'essay') {
+                             $subval =~ s{\n}{<br />}g;
+                         }
+                         $lastsubonly.=$subval."\n";
+                     }
+ 	            if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
+ 		    $lastsubonly.='</div>';
+ 		}
+             }
  	}
-     } else {
+ 	$lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
- 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+     }
- 								 $ENV{'request.course.id'},
+     $request->print($lastsubonly);
+     if ($env{'form.lastSub'} eq 'datesub') {
+         my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
+ 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
+     }
+     if ($env{'form.lastSub'} =~ /^(last|all)$/) {
+         my $identifier = (&canmodify($usec)? $counter : '');
+         $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+ 								 $env{'request.course.id'},
  								 $last,'.submission',
- 								 'Apache::grades::keywords_highlight'));
+ 								 'Apache::grades::keywords_highlight',
+                                                                  $usec,$identifier));
      }
      $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
  	.$udom.'" />'."\n");
      # return if view submission with no grading option
-     if ($ENV{'form.showgrading'} eq '' || (!&canmodify($usec))) {
+     if (!&canmodify($usec)) {
- 	my $toGrade.='<input type="button" value="Grade Student" '.
+ 	$request->print('<p><span class="LC_warning">'.&mt('No grading privileges').'</span></p></div>');
- 	    'onClick="javascript:checksubmit(this.form,\'Grade Student\',\''
- 	    .$counter.'\');" TARGET=_self> &nbsp;'."\n" if (&canmodify($usec));
- 	$toGrade.='</td></tr></table></td></tr></table></form>'."\n";
- 	$toGrade.=&show_grading_menu_form($symb,$url)
- 	    if (($ENV{'form.command'} eq 'submission') ||
- 		($ENV{'form.command'} eq 'processGroup' && $counter == $total));
- 	$request = print($toGrade);
  	return;
+     } else {
+ 	$request->print('</div>'."\n");
      }
      # essay grading message center
-     if ($ENV{'form.handgrade'} eq 'yes') {
+ #    if ($env{'form.handgrade'} eq 'yes') {
- 	my ($lastname,$givenn) = split(/,/,$ENV{'form.fullname'});
+     if (1) {
+ 	my $result='<div class="LC_grade_message_center">';
+ 	$result.='<div class="LC_grade_message_center_header">'.
+ 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
+ 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
  	my $msgfor = $givenn.' '.$lastname;
- 	if (scalar(@col_fullnames) > 0) {
+ 	if (scalar(@$col_fullnames) > 0) {
- 	    my $lastone = pop @col_fullnames;
+ 	    my $lastone = pop(@$col_fullnames);
- 	    $msgfor .= ', '.(join ', ',@col_fullnames).' and '.$lastone.'.';
+ 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
  	}
  	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
- #	$result.='<tr><td bgcolor="#ffffff">'."\n".
+ 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
- 	$result='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
  	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
  	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
- 	    ',\''.$msgfor.'\')"; TARGET=_self>'.
+ 	    ',\''.$msgfor.'\');" target="_self">'.
- 	    'Compose Message to student'.(scalar(@col_fullnames) >= 1 ? 's' : '').'</a> &nbsp;'.
+ 	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
- 	    '<img src="'.$request->dir_config('lonIconsURL').
+ 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
- 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
+ 	    ' <img src="'.$request->dir_config('lonIconsURL').
- 	    '<br />&nbsp;(Message will be sent when you click on Save & Next below.)'."\n"
+ 	    '/mailbkgrd.gif" width="14" height="10" alt="" name="mailicon'.$counter.'" />'."\n".
- 	    if ($ENV{'form.handgrade'} eq 'yes');
+ 	    '<br />&nbsp;('.
+ 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
+ 	$result.='</div></div>';
  	$request->print($result);
      }
      my %seen = ();
      my @partlist;
-     for (sort keys(%$handgrade)) {
+     my @gradePartRespid;
- 	my ($partid,$respid) = split(/_/);
+     my @part_response_id;
+     if ($is_tool) {
+         @part_response_id = ([0,'']);
+     } else {
+         @part_response_id = &flatten_responseType($responseType);
+     }
+     $request->print(
+         '<div class="LC_Box">'
+        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
+     );
+     $request->print(&gradeBox_start());
+     foreach my $part_response_id (@part_response_id) {
+     	my ($partid,$respid) = @{ $part_response_id };
+ 	my $part_resp = join('_',@{ $part_response_id });
  	next if ($seen{$partid} > 0);
  	$seen{$partid}++;
- 	next if ($$handgrade{$_} =~ /:no$/ && $ENV{'form.lastSub'} =~ /^(hdgrade)$/);
+ 	next if ($$handgrade{$part_resp} ne 'yes'
- 	push @partlist,$partid;
+ 		 && $env{'form.lastSub'} eq 'hdgrade');
+ 	push(@partlist,$partid);
+ 	push(@gradePartRespid,$partid.'.'.$respid);
  	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
      }
+     $request->print(&gradeBox_end()); # </div>
+     $request->print('</div>');
+     $request->print('<div class="LC_grade_info_links">');
+     $request->print('</div>');
      $result='<input type="hidden" name="partlist'.$counter.
  	'" value="'.(join ":",@partlist).'" />'."\n";
+     $result.='<input type="hidden" name="gradePartRespid'.
+ 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
      my $ctr = 0;
      while ($ctr < scalar(@partlist)) {
  	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
  	    $partlist[$ctr].'" />'."\n";
  	$ctr++;
      }
-     $request->print($result.'</td></tr></table></td></tr></table>'."\n");
+     $request->print($result.''."\n");
+ # Done with printing info for one student
+     $request->print('</div>');#LC_grade_show_user
      # print end of form
      if ($counter == $total) {
- 	my $endform='<table border="0"><tr><td>'."\n";
+         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
- 	$endform.='<input type="button" value="Save & Next" '.
+ 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
- 	    'onClick="javascript:checksubmit(this.form,\'Save & Next\','.
+ 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
- 	    $total.','.scalar(@partlist).');" TARGET=_self> &nbsp;'."\n";
+ 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
  	my $ntstu ='<select name="NTSTU">'.
  	    '<option>1</option><option>2</option>'.
  	    '<option>3</option><option>5</option>'.
  	    '<option>7</option><option>10</option></select>'."\n";
- 	my $nsel = ($ENV{'form.NTSTU'} ne '' ? $ENV{'form.NTSTU'} : '1');
+ 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
- 	$ntstu =~ s/<option>$nsel</<option selected="on">$nsel</;
+ 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
- 	$endform.=$ntstu.'student(s) &nbsp;&nbsp;';
+         $endform.=&mt('[_1]student(s)',$ntstu);
- 	$endform.='<input type="button" value="Next" '.
+ 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
- 	    'onClick="javascript:checksubmit(this.form,\'Next\');" TARGET=_self> &nbsp;'."\n".
+ 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
- 	    '<input type="button" value="Previous" '.
+ 	    '<input type="button" value="'.&mt('Next').'" '.
- 	    'onClick="javascript:checksubmit(this.form,\'Previous\');" TARGET=_self> &nbsp;';
+ 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
- 	$endform.='(Next and Previous do not save the scores.)'."\n" ;
+         $endform.='<span class="LC_warning">'.
- 	$endform.='</td><tr></table></form>';
+                   &mt('(Next and Previous (student) do not save the scores.)').
- 	$endform.=&show_grading_menu_form($symb,$url);
+                   '</span>'."\n" ;
+         $endform.="<input type='hidden' value='".&get_increment().
+             "' name='increment' />";
+ 	$endform.='</td></tr></table></form>';
  	$request->print($endform);
      }
      return '';
  }
+ sub check_collaborators {
+     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
+     my ($result,@col_fullnames);
+     my ($classlist,undef,$fullname) = &getclasslist('all','0');
+     foreach my $part (keys(%$handgrade)) {
+ 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
+ 					'.maxcollaborators',
+ 					$symb,$udom,$uname);
+ 	next if ($ncol <= 0);
+ 	$part =~ s/\_/\./g;
+ 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
+ 	my (@good_collaborators, @bad_collaborators);
+ 	foreach my $possible_collaborator
+ 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) {
+ 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
+ 	    next if ($possible_collaborator eq '');
+ 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
+ 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
+ 	    next if ($co_name eq $uname && $co_dom eq $udom);
+ 	    # Doing this grep allows 'fuzzy' specification
+ 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i,
+ 			       keys(%$classlist));
+ 	    if (! scalar(@matches)) {
+ 		push(@bad_collaborators, $possible_collaborator);
+ 	    } else {
+ 		push(@good_collaborators, @matches);
+ 	    }
+ 	}
+ 	if (scalar(@good_collaborators) != 0) {
+ 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
+ 	    foreach my $name (@good_collaborators) {
+ 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
+ 		push(@col_fullnames, $givenn.' '.$lastname);
+ 		$result.='<li>'.$fullname->{$name}.'</li>';
+ 	    }
+ 	    $result.='</ol><br />'."\n";
+ 	    my ($part)=split(/\./,$part);
+ 	    $result.='<input type="hidden" name="collaborator'.$counter.
+ 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
+ 		"\n";
+ 	}
+ 	if (scalar(@bad_collaborators) > 0) {
+ 	    $result.='<div class="LC_warning">';
+ 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
+ 	    $result .= '</div>';
+ 	}
+ 	if (scalar(@bad_collaborators > $ncol)) {
+ 	    $result .= '<div class="LC_warning">';
+ 	    $result .= &mt('This student has submitted too many '.
+ 		'collaborators.  Maximum is [_1].',$ncol);
+ 	    $result .= '</div>';
+ 	}
+     }
+     return ($result,$fullname,\@col_fullnames);
+ }
  #--- Retrieve the last submission for all the parts
  sub get_last_submission {
-     my ($returnhash)=@_;
+     my ($returnhash,$is_tool)=@_;
-     my (@string,$timestamp);
+     my (@string,$timestamp,%lasthidden);
      if ($$returnhash{'version'}) {
  	my %lasthash=();
  	my ($version);
  	for ($version=1;$version<=$$returnhash{'version'};$version++) {
- 	    foreach (sort(split(/\:/,$$returnhash{$version.':keys'}))) {
+ 	    foreach my $key (sort(split(/\:/,
- 		$lasthash{$_}=$$returnhash{$version.':'.$_};
+ 					$$returnhash{$version.':keys'}))) {
- 		   $timestamp = scalar(localtime($$returnhash{$version.':timestamp'}));
+ 		$lasthash{$key}=$$returnhash{$version.':'.$key};
- 	    }
+ 		$timestamp =
- 	}
+ 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
- 	foreach ((keys %lasthash)) {
+ 	    }
- 	    if ($_ =~ /\.submission$/) {
+ 	}
- 		my ($partid,$foo) = split(/submission$/,$_);
+         my (%typeparts,%randombytry);
- 		my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
+         my $showsurv =
- 		    '<font color="red">Draft Copy</font> ' : '';
+             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
- 		push @string, (join(':',$_,$draft.$lasthash{$_}));
+         foreach my $key (sort(keys(%lasthash))) {
- 	    }
+             if ($key =~ /\.type$/) {
+                 if (($lasthash{$key} eq 'anonsurvey') ||
+                     ($lasthash{$key} eq 'anonsurveycred') ||
+                     ($lasthash{$key} eq 'randomizetry')) {
+                     my ($ign,@parts) = split(/\./,$key);
+                     pop(@parts);
+                     my $id = join('.',@parts);
+                     if ($lasthash{$key} eq 'randomizetry') {
+                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
+                     } else {
+                         unless ($showsurv) {
+                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
+                         }
+                     }
+                     delete($lasthash{$key});
+                 }
+             }
+         }
+         my @hidden = keys(%typeparts);
+         my @randomize = keys(%randombytry);
+ 	foreach my $key (keys(%lasthash)) {
+ 	    next if ($key !~ /\.submission$/);
+             my $hide;
+             if (@hidden) {
+                 foreach my $id (@hidden) {
+                     if ($key =~ /^\Q$id\E/) {
+                         $hide = 'anon';
+                         last;
+                     }
+                 }
+             }
+             unless ($hide) {
+                 if (@randomize) {
+                     foreach my $id (@randomize) {
+                         if ($key =~ /^\Q$id\E/) {
+                             $hide = 'rand';
+                             last;
+                         }
+                     }
+                 }
+             }
+ 	    my ($partid,$foo) = split(/submission$/,$key);
+ 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ? 1 : 0;
+             push(@string, join(':', $key, $hide, $draft, (
+                 ref($lasthash{$key}) eq 'ARRAY' ?
+                     join(',', @{$lasthash{$key}}) : $lasthash{$key}) ));
  	}
      }
-     @string = $string[0] eq '' ? 'Nothing submitted - no attempts.' : @string;
+     if (!@string) {
-     return \@string,\$timestamp;
+         my $msg;
+         if ($is_tool) {
+             $msg = &mt('No grade passed back.');
+         } else {
+             $msg = &mt('Nothing submitted - no attempts.');
+         }
+ 	$string[0] =
+ 	    '<span class="LC_warning">'.$msg.'</span>';
+     }
+     return (\@string,\$timestamp);
  }
  #--- High light keywords, with style choosen by user.
  sub keywords_highlight {
      my $string    = shift;
-     my $size      = $ENV{'form.kwsize'} eq '0' ? '' : 'size='.$ENV{'form.kwsize'};
+     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
-     my $styleon   = $ENV{'form.kwstyle'} eq ''  ? '' : $ENV{'form.kwstyle'};
+     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
      (my $styleoff = $styleon) =~ s/\</\<\//;
-     my @keylist   = split(/[,\s+]/,$ENV{'form.keywords'});
+     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
-     foreach (@keylist) {
+     foreach my $keyword (@keylist) {
- 	$string =~ s/\b\Q$_\E(\b|\.)/<font color\=$ENV{'form.kwclr'} $size\>$styleon$_$styleoff<\/font>/gi;
+ 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
      }
      return $string;
  }
+ # For Tasks provide a mechanism to display previous version for one specific student
+ sub show_previous_task_version {
+     my ($request,$symb) = @_;
+     if ($symb eq '') {
+         $request->print(
+             '<span class="LC_error">'.
+             &mt('Unable to handle ambiguous references.').
+             '</span>');
+         return '';
+     }
+     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
+     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
+     if (!&canview($usec)) {
+         $request->print(
+             '<span class="LC_warning">'.
+             &mt('Unable to view previous version for requested student.').
+             ' '.&mt('([_1] in section [_2] in course id [_3])',
+                     $uname.':'.$udom,$usec,$env{'request.course.id'}).
+             '</span>');
+         return;
+     }
+     my $mode = 'both';
+     my $isTask = ($symb =~/\.task$/);
+     if ($isTask) {
+         if ($env{'form.previousversion'} =~ /^\d+$/) {
+             if ($env{'form.fullname'} eq '') {
+                 $env{'form.fullname'} =
+                     &Apache::loncommon::plainname($uname,$udom,'lastname');
+             }
+             my $probtitle=&Apache::lonnet::gettitle($symb);
+             $request->print("\n\n".
+                             '<div class="LC_grade_show_user">'.
+                             '<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
+                             '</h2>'."\n");
+             &Apache::lonxml::clear_problem_counter();
+             $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,
+                             {'previousversion' => $env{'form.previousversion'} }));
+             $request->print("\n</div>");
+         }
+     }
+     return;
+ }
+ sub choose_task_version_form {
+     my ($symb,$uname,$udom,$nomenu) = @_;
+     my $isTask = ($symb =~/\.task$/);
+     my ($current,$version,$result,$js,$displayed,$rowtitle);
+     if ($isTask) {
+         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
+                                               $udom,$uname);
+         if (($record{'resource.0.version'} eq '') ||
+             ($record{'resource.0.version'} < 2)) {
+             return ($record{'resource.0.version'},
+                     $record{'resource.0.version'},$result,$js);
+         } else {
+             $current = $record{'resource.0.version'};
+         }
+         if ($env{'form.previousversion'}) {
+             $displayed = $env{'form.previousversion'};
+             $rowtitle = &mt('Choose another version:')
+         } else {
+             $displayed = $current;
+             $rowtitle = &mt('Show earlier version:');
+         }
+         $result = '<div class="LC_left_float">';
+         my $list;
+         my $numversions = 0;
+         for (my $i=1; $i<=$record{'resource.0.version'}; $i++) {
+             if ($i == $current) {
+                 if (!$env{'form.previousversion'} || $nomenu) {
+                     next;
+                 } else {
+                     $list .= '<option value="'.$i.'">'.&mt('Current').'</option>'."\n";
+                     $numversions ++;
+                 }
+             } elsif (defined($record{'resource.'.$i.'.0.status'})) {
+                 unless ($i == $env{'form.previousversion'}) {
+                     $numversions ++;
+                 }
+                 $list .= '<option value="'.$i.'">'.$i.'</option>'."\n";
+             }
+         }
+         if ($numversions) {
+             $symb = &HTML::Entities::encode($symb,'<>"&');
+             $result .=
+                 '<form name="getprev" method="post" action=""'.
+                 ' onsubmit="return previousVersion('."'$uname','$udom','$symb','$displayed'".');">'.
+                 &Apache::loncommon::start_data_table().
+                 &Apache::loncommon::start_data_table_row().
+                 '<th align="left">'.$rowtitle.'</th>'.
+                 '<td><select name="version">'.
+                 '<option>'.&mt('Select').'</option>'.
+                 $list.
+                 '</select></td>'.
+                 &Apache::loncommon::end_data_table_row();
+             unless ($nomenu) {
+                 $result .= &Apache::loncommon::start_data_table_row().
+                 '<th align="left">'.&mt('Open in new window').'</th>'.
+                 '<td><span class="LC_nobreak">'.
+                 '<label><input type="radio" name="prevwin" value="1" />'.
+                 &mt('Yes').'</label>'.
+                 '<label><input type="radio" name="prevwin" value="0" checked="checked" />'.&mt('No').'</label>'.
+                 '</span></td>'.
+                 &Apache::loncommon::end_data_table_row();
+             }
+             $result .=
+                 &Apache::loncommon::start_data_table_row().
+                 '<th align="left">&nbsp;</th>'.
+                 '<td>'.
+                 '<input type="submit" name="prevsub" value="'.&mt('Display').'" />'.
+                 '</td>'.
+                 &Apache::loncommon::end_data_table_row().
+                 &Apache::loncommon::end_data_table().
+                 '</form>';
+             $js = &previous_display_javascript($nomenu,$current);
+         } elsif ($displayed && $nomenu) {
+             $result .= '<a href="javascript:window.close()">'.&mt('Close window').'</a>';
+         } else {
+             $result .= &mt('No previous versions to show for this student');
+         }
+         $result .= '</div>';
+     }
+     return ($current,$displayed,$result,$js);
+ }
+ sub previous_display_javascript {
+     my ($nomenu,$current) = @_;
+     my $js = <<"JSONE";
+ <script type="text/javascript">
+ // <![CDATA[
+ function previousVersion(uname,udom,symb) {
+     var current = '$current';
+     var version = document.getprev.version.options[document.getprev.version.selectedIndex].value;
+     var prevstr = new RegExp("^\\\\d+\$");
+     if (!prevstr.test(version)) {
+         return false;
+     }
+     var url = '';
+     if (version == current) {
+         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=submission';
+     } else {
+         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=versionsub&previousversion='+version;
+     }
+ JSONE
+     if ($nomenu) {
+         $js .= <<"JSTWO";
+     document.location.href = url;
+ JSTWO
+     } else {
+         $js .= <<"JSTHREE";
+     var newwin = 0;
+     for (var i=0; i<document.getprev.prevwin.length; i++) {
+         if (document.getprev.prevwin[i].checked == true) {
+             newwin = document.getprev.prevwin[i].value;
+         }
+     }
+     if (newwin == 1) {
+         var options = 'height=600,width=800,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no';
+         url = url+'&inhibitmenu=yes';
+         if (typeof(previousWin) == 'undefined' || previousWin.closed) {
+             previousWin = window.open(url,'',options,1);
+         } else {
+             previousWin.location.href = url;
+         }
+         previousWin.focus();
+         return false;
+     } else {
+         document.location.href = url;
+         return false;
+     }
+ JSTHREE
+     }
+     $js .= <<"ENDJS";
+     return false;
+ }
+ // ]]>
+ </script>
+ ENDJS
+ }
  #--- Called from submission routine
  sub processHandGrade {
-     my ($request) = shift;
+     my ($request,$symb) = @_;
-     my $url    = $ENV{'form.url'};
+     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
-     my $symb   = $ENV{'form.symb'};
+     my $button = $env{'form.gradeOpt'};
-     my $button = $ENV{'form.gradeOpt'};
+     my $ngrade = $env{'form.NCT'};
-     my $ngrade = $ENV{'form.NCT'};
+     my $ntstu  = $env{'form.NTSTU'};
-     my $ntstu  = $ENV{'form.NTSTU'};
+     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
      if ($button eq 'Save & Next') {
  	my $ctr = 0;
  	while ($ctr < $ngrade) {
- 	    my ($uname,$udom) = split(/:/,$ENV{'form.unamedom'.$ctr});
+ 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
- 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$url,$symb,$uname,$udom,$ctr);
+ 	    my ($errorflag,$pts,$wgt,$numhidden) =
+                 &saveHandGrade($request,$symb,$uname,$udom,$ctr);
  	    if ($errorflag eq 'no_score') {
  		$ctr++;
  		next;
  	    }
  	    if ($errorflag eq 'not_allowed') {
- 		$request->print("<font color=\"red\">Not allowed to modify grades for $uname:$udom</font>");
+ 		$request->print(
+                     '<span class="LC_error">'
+                    .&mt('Not allowed to modify grades for [_1]',"$uname:$udom")
+                    .'</span>');
  		$ctr++;
  		next;
  	    }
- 	    my $includemsg = $ENV{'form.includemsg'.$ctr};
+             if ($numhidden) {
+                 $request->print(
+                     '<span class="LC_info">'
+                    .&mt('For [_1]: [quant,_2,transaction] hidden',"$uname:$udom",$numhidden)
+                    .'</span><br />');
+             }
+ 	    my $includemsg = $env{'form.includemsg'.$ctr};
  	    my ($subject,$message,$msgstatus) = ('','','');
+ 	    my $restitle = &Apache::lonnet::gettitle($symb);
+             my ($feedurl,$showsymb) =
+ 		&get_feedurl_and_symb($symb,$uname,$udom);
+ 	    my $messagetail;
  	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
- 		$subject = $ENV{'form.msgsub'} if ($includemsg =~ /^msgsub/);
+ 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
+ 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
+ 		$subject.=' ['.$restitle.']';
  		my (@msgnum) = split(/,/,$includemsg);
  		foreach (@msgnum) {
- 		    $message.=$ENV{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
+ 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
  		}
  		$message =&Apache::lonfeedback::clear_out_html($message);
- 		$message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
+ 		if ($env{'form.withgrades'.$ctr}) {
- 		$message.=" for <a href=\"".
+ 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
- 		    &Apache::lonnet::clutter($url).
+ 		    $messagetail = " for <a href=\"".
- 		    "?symb=$symb\">$ENV{'form.probTitle'}</a>";
+ 		                   $feedurl."?symb=$showsymb\">$restitle</a>";
- 		$msgstatus = &Apache::lonmsg::user_normal_msg ($uname,$udom,
+ 		}
- 							       $ENV{'form.msgsub'},$message);
+ 		$msgstatus =
- 	    }
+                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
- 	    if ($ENV{'form.collaborator'.$ctr}) {
+ 						     $message.$messagetail,
- 		my (@collaborators) = split(/:/,$ENV{'form.collaborator'.$ctr});
+                                                      undef,$feedurl,undef,
- 		foreach (@collaborators) {
+                                                      undef,undef,$showsymb,
- 		    my ($errorflag,$pts,$wgt) =
+                                                      $restitle);
- 			&saveHandGrade($request,$url,$symb,$_,$udom,$ctr,$ENV{'form.unamedom'.$ctr});
+ 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
- 		    if ($errorflag eq 'not_allowed') {
+ 				$msgstatus.'<br />');
- 			$request->print("<font color=\"red\">Not allowed to modify grades for $_:$udom</font>");
+ 	    }
- 			next;
+ 	    if ($env{'form.collaborator'.$ctr}) {
- 		    } else {
+ 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
- 			if ($message ne '') {
+ 		foreach my $collabstr (@collabstrs) {
- 			    $msgstatus = &Apache::lonmsg::user_normal_msg ($_,$udom,
+ 		    my ($part,@collaborators) = split(/:/,$collabstr);
- 									   $ENV{'form.msgsub'},
+ 		    foreach my $collaborator (@collaborators) {
- 									   $message);
+ 			my ($errorflag,$pts,$wgt) =
+ 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
+ 					   $env{'form.unamedom'.$ctr},$part);
+ 			if ($errorflag eq 'not_allowed') {
+ 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
+ 			    next;
+ 			} elsif ($message ne '') {
+ 			    my ($baseurl,$showsymb) =
+ 				&get_feedurl_and_symb($symb,$collaborator,
+ 						      $udom);
+ 			    if ($env{'form.withgrades'.$ctr}) {
+ 				$messagetail = " for <a href=\"".
+                                     $baseurl."?symb=$showsymb\">$restitle</a>";
+ 			    }
+ 			    $msgstatus =
+ 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
  			}
  		    }
  		}
- Line 1623  sub processHandGrade {
+ Line 3074  sub processHandGrade {
  	}
      }
-     if ($ENV{'form.handgrade'} eq 'yes') {
+ #    if ($env{'form.handgrade'} eq 'yes') {
+     if (1) {
  	# Keywords sorted in alphabatical order
- 	my $loginuser = $ENV{'user.name'}.':'.$ENV{'user.domain'};
+ 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  	my %keyhash = ();
- 	$ENV{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
+ 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
- 	$ENV{'form.keywords'}           =~ s/^\s+|\s+$//;
+ 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
- 	my (@keywords) = sort(split(/\s+/,$ENV{'form.keywords'}));
+ 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
- 	$ENV{'form.keywords'} = join(' ',@keywords);
+ 	$env{'form.keywords'} = join(' ',@keywords);
- 	$keyhash{$symb.'_keywords'}     = $ENV{'form.keywords'};
+ 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
- 	$keyhash{$symb.'_subject'}      = $ENV{'form.msgsub'};
+ 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
- 	$keyhash{$loginuser.'_kwclr'}   = $ENV{'form.kwclr'};
+ 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
- 	$keyhash{$loginuser.'_kwsize'}  = $ENV{'form.kwsize'};
+ 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
- 	$keyhash{$loginuser.'_kwstyle'} = $ENV{'form.kwstyle'};
+ 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
  	# message center - Order of message gets changed. Blank line is eliminated.
- 	# New messages are saved in ENV for the next student.
+ 	# New messages are saved in env for the next student.
  	# All messages are saved in nohist_handgrade.db
  	my ($ctr,$idx) = (1,1);
- 	while ($ctr <= $ENV{'form.savemsgN'}) {
+ 	while ($ctr <= $env{'form.savemsgN'}) {
- 	    if ($ENV{'form.savemsg'.$ctr} ne '') {
+ 	    if ($env{'form.savemsg'.$ctr} ne '') {
- 		$keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.savemsg'.$ctr};
+ 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
  		$idx++;
  	    }
  	    $ctr++;
  	}
  	$ctr = 0;
  	while ($ctr < $ngrade) {
- 	    if ($ENV{'form.newmsg'.$ctr} ne '') {
+ 	    if ($env{'form.newmsg'.$ctr} ne '') {
- 		$keyhash{$symb.'_savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};
+ 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
- 		$ENV{'form.savemsg'.$idx} = $ENV{'form.newmsg'.$ctr};
+ 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
  		$idx++;
  	    }
  	    $ctr++;
  	}
- 	$ENV{'form.savemsgN'} = --$idx;
+ 	$env{'form.savemsgN'} = --$idx;
- 	$keyhash{$symb.'_savemsgN'} = $ENV{'form.savemsgN'};
+ 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
  	my $putresult = &Apache::lonnet::put
- 	    ('nohist_handgrade',\%keyhash,
+ 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
- 	     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
- 	     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
      }
      # Called by Save & Refresh from Highlight Attribute Window
-     my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'1');
+     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
-     if ($ENV{'form.refresh'} eq 'on') {
+     if ($env{'form.refresh'} eq 'on') {
  	my ($ctr,$total) = (0,0);
  	while ($ctr < $ngrade) {
- 	    $total++ if  $ENV{'form.unamedom'.$ctr} ne '';
+ 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
  	    $ctr++;
  	}
- 	$ENV{'form.NTSTU'}=$ngrade;
+ 	$env{'form.NTSTU'}=$ngrade;
  	$ctr = 0;
  	while ($ctr < $total) {
- 	    my $processUser = $ENV{'form.unamedom'.$ctr};
+ 	    my $processUser = $env{'form.unamedom'.$ctr};
- 	    ($ENV{'form.student'},$ENV{'form.userdom'}) = split(/:/,$processUser);
+ 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
- 	    $ENV{'form.fullname'} = $$fullname{$processUser};
+ 	    $env{'form.fullname'} = $$fullname{$processUser};
- 	    &submission($request,$ctr,$total-1);
+ 	    &submission($request,$ctr,$total-1,$symb);
  	    $ctr++;
  	}
  	return '';
      }
- # Go directly to grade student - from submission or link from chart page
-     if ($button eq 'Grade Student') {
- 	(undef,undef,$ENV{'form.handgrade'},undef,undef) = &showResourceInfo($url);
- 	my $processUser = $ENV{'form.unamedom'.$ENV{'form.studentNo'}};
- 	($ENV{'form.student'},$ENV{'form.userdom'}) = split(/:/,$processUser);
- 	$ENV{'form.fullname'} = $$fullname{$processUser};
- 	&submission($request,0,0);
- 	return '';
-     }
      # Get the next/previous one or group of students
-     my $firststu = $ENV{'form.unamedom0'};
+     my $firststu = $env{'form.unamedom0'};
-     my $laststu = $ENV{'form.unamedom'.($ngrade-1)};
+     my $laststu = $env{'form.unamedom'.($ngrade-1)};
      my $ctr = 2;
      while ($laststu eq '') {
- 	$laststu  = $ENV{'form.unamedom'.($ngrade-$ctr)};
+ 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
  	$ctr++;
  	$laststu = $firststu if ($ctr > $ngrade);
      }
      my (@parsedlist,@nextlist);
      my ($nextflg) = 0;
-     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+     foreach my $item (sort
+ 	     {
+ 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+ 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+ 		 }
+ 		 return $a cmp $b;
+ 	     } (keys(%$fullname))) {
+ # FIXME: this is fishy, looks like the button label
  	if ($nextflg == 1 && $button =~ /Next$/) {
- 	    push @parsedlist,$_;
+ 	    push(@parsedlist,$item);
  	}
- 	$nextflg = 1 if ($_ eq $laststu);
+ 	$nextflg = 1 if ($item eq $laststu);
  	if ($button eq 'Previous') {
- 	    last if ($_ eq $firststu);
+ 	    last if ($item eq $firststu);
- 	    push @parsedlist,$_;
+ 	    push(@parsedlist,$item);
  	}
      }
      $ctr = 0;
-     my ($partlist,$handgrade) = &response_type($ENV{'form.url'});
+ # FIXME: this is fishy, looks like the button label
      @parsedlist = reverse @parsedlist if ($button eq 'Previous');
+     my $res_error;
+     my ($partlist) = &response_type($symb,\$res_error);
+     if ($res_error) {
+         $request->print(&navmap_errormsg());
+         return;
+     }
      foreach my $student (@parsedlist) {
+ 	my $submitonly=$env{'form.submitonly'};
  	my ($uname,$udom) = split(/:/,$student);
- 	if ($ENV{'form.submitonly'} eq 'yes') {
- 	    my (%status) = &student_gradeStatus($ENV{'form.url'},$symb,$udom,$uname,$partlist) ;
+ 	if ($submitonly eq 'queued') {
- 	    my $statusflg = '';
+ 	    my %queue_status =
- 	    foreach (keys(%status)) {
+ 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
- 		$statusflg = 1 if ($status{$_} ne 'nothing');
+ 							$udom,$uname);
- 		my ($foo,$partid,$foo1) = split(/\./);
+ 	    next if (!defined($queue_status{'gradingqueue'}));
- 		$statusflg = '' if ($status{'resource.'.$partid.'.submitted_by'} ne '');
+ 	}
+ 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
+ #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
+ 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
+ 	    my $submitted = 0;
+ 	    my $ungraded = 0;
+ 	    my $incorrect = 0;
+ 	    foreach my $item (keys(%status)) {
+ 		$submitted = 1 if ($status{$item} ne 'nothing');
+ 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
+ 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
+ 		my ($foo,$partid,$foo1) = split(/\./,$item);
+ 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
+ 		    $submitted = 0;
+ 		}
  	    }
- 	    next if ($statusflg eq '');
+ 	    next if (!$submitted && ($submitonly eq 'yes' ||
+ 				     $submitonly eq 'incorrect' ||
+ 				     $submitonly eq 'graded'));
+ 	    next if (!$ungraded && ($submitonly eq 'graded'));
+ 	    next if (!$incorrect && $submitonly eq 'incorrect');
  	}
- 	push @nextlist,$student if ($ctr < $ntstu);
+ 	push(@nextlist,$student) if ($ctr < $ntstu);
+ 	last if ($ctr == $ntstu);
  	$ctr++;
      }
      $ctr = 0;
      my $total = scalar(@nextlist)-1;
-     foreach (sort @nextlist) {
+     foreach (sort(@nextlist)) {
  	my ($uname,$udom,$submitter) = split(/:/);
- 	$ENV{'form.student'}  = $uname;
+ 	$env{'form.student'}  = $uname;
- 	$ENV{'form.userdom'}  = $udom;
+ 	$env{'form.userdom'}  = $udom;
- 	$ENV{'form.fullname'} = $$fullname{$_};
+ 	$env{'form.fullname'} = $$fullname{$_};
- 	&submission($request,$ctr,$total);
+ 	&submission($request,$ctr,$total,$symb);
  	$ctr++;
      }
      if ($total < 0) {
- 	my $the_end = '<h3><font color="red">LON-CAPA User Message</font></h3><br />'."\n";
+ 	my $the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
- 	$the_end.='<b>Message: </b> No more students for this section or class.<br /><br />'."\n";
- 	$the_end.='Click on the button below to return to the grading menu.<br /><br />'."\n";
- 	$the_end.=&show_grading_menu_form ($symb,$url);
  	$request->print($the_end);
      }
      return '';
- Line 1758  sub processHandGrade {
+ Line 3229  sub processHandGrade {
  #---- Save the score and award for each student, if changed
  sub saveHandGrade {
-     my ($request,$url,$symb,$stuname,$domain,$newflg,$submitter) = @_;
+     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
+     my @version_parts;
      my $usec = &Apache::lonnet::getsection($domain,$stuname,
- 					   $ENV{'request.course.id'});
+ 					   $env{'request.course.id'});
      if (!&canmodify($usec)) { return('not_allowed'); }
-     my %record     = &Apache::lonnet::restore($symb,$ENV{'request.course.id'},$domain,$stuname);
+     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
+     my @parts_graded;
      my %newrecord  = ();
-     my ($pts,$wgt) = ('','');
+     my ($pts,$wgt,$totchg) = ('','',0);
-     foreach (split(/:/,$ENV{'form.partlist'.$newflg})) {
+     my %aggregate = ();
- 	if ($ENV{'form.GD_SEL'.$newflg.'_'.$_} eq 'excused') {
+     my $aggregateflag = 0;
- 	    if ($record{'resource.'.$_.'.solved'} ne 'excused') {
+     if ($env{'form.HIDE'.$newflg}) {
- 		$newrecord{'resource.'.$_.'.solved'} = 'excused';
+         my ($version,$parts) = split(/:/,$env{'form.HIDE'.$newflg},2);
- 		if (exists($record{'resource.'.$_.'.awarded'})) {
+         my $numchgs = &makehidden($version,$parts,\%record,$symb,$domain,$stuname,1);
- 		    $newrecord{'resource.'.$_.'.awarded'} = '';
+         $totchg += $numchgs;
+     }
+     my @parts = split(/:/,$env{'form.partlist'.$newflg});
+     foreach my $new_part (@parts) {
+ 	#collaborator ($submi may vary for different parts
+ 	if ($submitter && $new_part ne $part) { next; }
+ 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
+ 	if ($dropMenu eq 'excused') {
+ 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
+ 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
+ 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
+ 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
  		}
+ 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
  	    }
- 	} else {
+ 	} elsif ($dropMenu eq 'reset status'
- 	    $pts = ($ENV{'form.GD_BOX'.$newflg.'_'.$_} ne '' ?
+ 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
- 		    $ENV{'form.GD_BOX'.$newflg.'_'.$_} :
+ 	    foreach my $key (keys(%record)) {
- 		    $ENV{'form.RADVAL'.$newflg.'_'.$_});
+ 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
- 	    return 'no_score' if ($pts eq '' && $ENV{'form.GD_SEL'.$newflg.'_'.$_} eq '');
+ 	    }
- 	    $wgt = $ENV{'form.WGT'.$newflg.'_'.$_} eq '' ? 1 :
+ 	    $newrecord{'resource.'.$new_part.'.regrader'}=
- 		$ENV{'form.WGT'.$newflg.'_'.$_};
+ 		"$env{'user.name'}:$env{'user.domain'}";
+             my $totaltries = $record{'resource.'.$part.'.tries'};
+             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
+ 					       [$new_part]);
+             my $aggtries =$totaltries;
+             if ($last_resets{$new_part}) {
+                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
+ 					   $new_part);
+             }
+             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
+             if ($aggtries > 0) {
+                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
+                 $aggregateflag = 1;
+             }
+ 	} elsif ($dropMenu eq '') {
+ 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ?
+ 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} :
+ 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
+ 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
+ 		next;
+ 	    }
+ 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 :
+ 		$env{'form.WGT'.$newflg.'_'.$new_part};
  	    my $partial= $pts/$wgt;
- 	    next if ($partial eq $record{'resource.'.$_.'.awarded'}); #do not update score for part if not changed.
+ 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
- 	    $newrecord{'resource.'.$_.'.awarded'}  = $partial
+ 		#do not update score for part if not changed.
- 		if ($record{'resource.'.$_.'.awarded'} ne $partial);
+                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
- 	    my $reckey = 'resource.'.$_.'.solved';
+ 		next;
+ 	    } else {
+ 	        push(@parts_graded,$new_part);
+ 	    }
+ 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
+ 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
+ 	    }
+ 	    my $reckey = 'resource.'.$new_part.'.solved';
  	    if ($partial == 0) {
- 		$newrecord{$reckey} = 'incorrect_by_override'
+ 		if ($record{$reckey} ne 'incorrect_by_override') {
- 		    if ($record{$reckey} ne 'incorrect_by_override');
+ 		    $newrecord{$reckey} = 'incorrect_by_override';
+ 		}
  	    } else {
- 		$newrecord{$reckey} = 'correct_by_override'
+ 		if ($record{$reckey} ne 'correct_by_override') {
- 		    if ($record{$reckey} ne 'correct_by_override');
+ 		    $newrecord{$reckey} = 'correct_by_override';
+ 		}
+ 	    }
+ 	    if ($submitter &&
+ 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
+ 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
+ 	    }
+ 	    $newrecord{'resource.'.$new_part.'.regrader'}=
+ 		"$env{'user.name'}:$env{'user.domain'}";
+ 	}
+ 	# unless problem has been graded, set flag to version the submitted files
+ 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  ||
+ 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
+ 	        $dropMenu eq 'reset status')
+ 	   {
+ 	    push(@version_parts,$new_part);
+ 	}
+     }
+     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+     if (%newrecord) {
+         if (@version_parts) {
+             my @changed_keys = &version_portfiles(\%record, \@parts_graded,
+                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
+ 	    @newrecord{@changed_keys} = @record{@changed_keys};
+ 	    foreach my $new_part (@version_parts) {
+ 		&handback_files($request,$symb,$stuname,$domain,$newflg,
+ 				$new_part,\%newrecord);
  	    }
- 	    $newrecord{'resource.'.$_.'.submitted_by'} = $submitter
+         }
- 		if ($submitter && ($record{'resource.'.$_.'.submitted_by'} ne $submitter));
+ 	&Apache::lonnet::cstore(\%newrecord,$symb,
- 	    $newrecord{'resource.'.$_.'regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 				$env{'request.course.id'},$domain,$stuname);
- 	}
+ 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
+ 				     $cdom,$cnum,$domain,$stuname);
+     }
+     if ($aggregateflag) {
+         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
+ 			      $cdom,$cnum);
+     }
+     return ('',$pts,$wgt,$totchg);
+ }
+ sub makehidden {
+     my ($version,$parts,$record,$symb,$domain,$stuname,$tolog) = @_;
+     return unless (ref($record) eq 'HASH');
+     my %modified;
+     my $numchanged = 0;
+     if (exists($record->{$version.':keys'})) {
+         my $partsregexp = $parts;
+         $partsregexp =~ s/,/|/g;
+         foreach my $key (split(/\:/,$record->{$version.':keys'})) {
+             if ($key =~ /^resource\.(?:$partsregexp)\.([^\.]+)$/) {
+                  my $item = $1;
+                  unless (($item eq 'solved') || ($item =~ /^award(|msg|ed)$/)) {
+                      $modified{$key} = $record->{$version.':'.$key};
+                  }
+             } elsif ($key =~ m{^(resource\.(?:$partsregexp)\.[^\.]+\.)(.+)$}) {
+                 $modified{$1.'hidden'.$2} = $record->{$version.':'.$key};
+             } elsif ($key =~ /^(ip|timestamp|host)$/) {
+                 $modified{$key} = $record->{$version.':'.$key};
+             }
+         }
+         if (keys(%modified)) {
+             if (&Apache::lonnet::putstore($env{'request.course.id'},$symb,$version,\%modified,
+                                           $domain,$stuname,$tolog) eq 'ok') {
+                 $numchanged ++;
+             }
+         }
      }
+     return $numchanged;
+ }
-     if (scalar(keys(%newrecord)) > 0) {
+ sub check_and_remove_from_queue {
- 	&Apache::lonnet::cstore(\%newrecord,$symb,
+     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
- 				$ENV{'request.course.id'},$domain,$stuname);
+     my @ungraded_parts;
+     foreach my $part (@{$parts}) {
+ 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
+ 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
+ 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
+ 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
+ 		) {
+ 	    push(@ungraded_parts, $part);
+ 	}
+     }
+     if ( !@ungraded_parts ) {
+ 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
+ 					       $cnum,$domain,$stuname);
+     }
+ }
+ sub handback_files {
+     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
+     my $portfolio_root = '/userfiles/portfolio';
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+     if ($res_error) {
+         $request->print('<br />'.&navmap_errormsg().'<br />');
+         return;
+     }
+     my @handedback;
+     my $file_msg;
+     my @part_response_id = &flatten_responseType($responseType);
+     foreach my $part_response_id (@part_response_id) {
+     	my ($part_id,$resp_id) = @{ $part_response_id };
+ 	my $part_resp = join('_',@{ $part_response_id });
+         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
+             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
+                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
+                 if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
+                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
+                     my ($directory,$answer_file) =
+                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
+                     my ($answer_name,$answer_ver,$answer_ext) =
+ 		        &Apache::lonnet::file_name_version_ext($answer_file);
+ 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
+                     my $getpropath = 1;
+                     my ($dir_list,$listerror) =
+                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
+                                                  $domain,$stuname,$getpropath);
+ 		    my $version = &Apache::lonnet::get_next_version($answer_name,$answer_ext,$dir_list);
+                     # fix filename
+                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
+                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
+             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
+             	                                $save_file_name);
+                     if ($result !~ m|^/uploaded/|) {
+                         $request->print('<br /><span class="LC_error">'.
+                             &mt('An error occurred ([_1]) while trying to upload [_2].',
+                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
+                                         '</span>');
+                     } else {
+                         # mark the file as read only
+                         push(@handedback,$save_file_name);
+ 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
+ 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
+ 			}
+                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
+ 			$file_msg.= '<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
+                     }
+                     $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
+                 }
+             }
+         }
+     }
+     if (@handedback > 0) {
+         $request->print('<br />');
+         my @what = ($symb,$env{'request.course.id'},'handback');
+         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
+         my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});
+         my ($subject,$message);
+         if (scalar(@handedback) == 1) {
+             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
+             $message = &mt_user($user_lh,'A file has been returned that was originally submitted in response to: ');
+         } else {
+             $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
+             $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
+         }
+         $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
+         $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
+                     &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
+         my ($feedurl,$showsymb) =
+             &get_feedurl_and_symb($symb,$domain,$stuname);
+         my $restitle = &Apache::lonnet::gettitle($symb);
+         $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
+         my $msgstatus =
+              &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
+                  $message,undef,$feedurl,undef,undef,undef,$showsymb,
+                  $restitle);
+         if ($msgstatus) {
+             $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
+         }
+     }
+     return;
+ }
+ sub get_feedurl_and_symb {
+     my ($symb,$uname,$udom) = @_;
+     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
+     $url = &Apache::lonnet::clutter($url);
+     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
+ 					$symb,$udom,$uname);
+     if ($encrypturl =~ /^yes$/i) {
+ 	&Apache::lonenc::encrypted(\$url,1);
+ 	&Apache::lonenc::encrypted(\$symb,1);
+     }
+     return ($url,$symb);
+ }
+ sub get_submitted_files {
+     my ($udom,$uname,$partid,$respid,$record) = @_;
+     my @files;
+     if ($$record{"resource.$partid.$respid.portfiles"}) {
+         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
+         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
+     	    push(@files,$file_url.$file);
+         }
+     }
+     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
+         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
+     }
+     return (\@files);
+ }
+ # ----------- Provides number of tries since last reset.
+ sub get_num_tries {
+     my ($record,$last_reset,$part) = @_;
+     my $timestamp = '';
+     my $num_tries = 0;
+     if ($$record{'version'}) {
+         for (my $version=$$record{'version'};$version>=1;$version--) {
+             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
+                 $timestamp = $$record{$version.':timestamp'};
+                 if ($timestamp > $last_reset) {
+                     $num_tries ++;
+                 } else {
+                     last;
+                 }
+             }
+         }
+     }
+     return $num_tries;
+ }
+ # ----------- Determine decrements required in aggregate totals
+ sub decrement_aggs {
+     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
+     my %decrement = (
+                         attempts => 0,
+                         users => 0,
+                         correct => 0
+                     );
+     $decrement{'attempts'} = $aggtries;
+     if ($solvedstatus =~ /^correct/) {
+         $decrement{'correct'} = 1;
      }
-     return '',$pts,$wgt;
+     if ($aggtries == $totaltries) {
+         $decrement{'users'} = 1;
+     }
+     foreach my $type (keys(%decrement)) {
+         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
+     }
+     return;
+ }
+ # ----------- Determine timestamps for last reset of aggregate totals for parts
+ sub get_last_resets {
+     my ($symb,$courseid,$partids) =@_;
+     my %last_resets;
+     my $cdom = $env{'course.'.$courseid.'.domain'};
+     my $cname = $env{'course.'.$courseid.'.num'};
+     my @keys;
+     foreach my $part (@{$partids}) {
+ 	push(@keys,"$symb\0$part\0resettime");
+     }
+     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
+ 				     $cdom,$cname);
+     foreach my $part (@{$partids}) {
+ 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
+     }
+     return %last_resets;
+ }
+ # ----------- Handles creating versions for portfolio files as answers
+ sub version_portfiles {
+     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
+     my $version_parts = join('|',@$v_flag);
+     my @returned_keys;
+     my $parts = join('|', @$parts_graded);
+     foreach my $key (keys(%$record)) {
+         my $new_portfiles;
+         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
+             my @versioned_portfiles;
+             my @portfiles = split(/\s*,\s*/,$$record{$key});
+             if (@portfiles) {
+                 &Apache::lonnet::portfiles_versioning($symb,$domain,$stu_name,\@portfiles,
+                                                       \@versioned_portfiles);
+             }
+             $$record{$key} = join(',',@versioned_portfiles);
+             push(@returned_keys,$key);
+         }
+     }
+     return (@returned_keys);
  }
  #--------------------------------------------------------------------------------------
- Line 1813  sub saveHandGrade {
+ Line 3600  sub saveHandGrade {
  sub viewgrades_js {
      my ($request) = shift;
-     $request->print(<<VIEWJAVASCRIPT);
+     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
- <script type="text/javascript" language="javascript">
+     &js_escape(\$alertmsg);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<VIEWJAVASCRIPT));
     function writePoint(partid,weight,point) {
- 	var radioButton = eval("document.classgrade.RADVAL_"+partid);
+ 	var radioButton = document.classgrade["RADVAL_"+partid];
- 	var textbox = eval("document.classgrade.TEXTVAL_"+partid);
+ 	var textbox = document.classgrade["TEXTVAL_"+partid];
  	if (point == "textval") {
- 	    var point = eval("document.classgrade.TEXTVAL_"+partid+".value");
+ 	    point = document.classgrade["TEXTVAL_"+partid].value;
  	    if (isNaN(point) || parseFloat(point) < 0) {
- 		alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
+ 		alert("$alertmsg"+parseFloat(point));
  		var resetbox = false;
  		for (var i=0; i<radioButton.length; i++) {
  		    if (radioButton[i].checked) {
- Line 1850  sub viewgrades_js {
+ Line 3638  sub viewgrades_js {
  	    }
  	} else {
- 	    textbox.value = point;
+ 	    textbox.value = parseFloat(point);
  	}
  	for (i=0;i<document.classgrade.total.value;i++) {
- 	    var user = eval("document.classgrade.ctr"+i+".value");
+ 	    var user = document.classgrade["ctr"+i].value;
- 	    var scorename = eval("document.classgrade.GD_"+user+
+ 	    user = user.replace(new RegExp(':', 'g'),"_");
- 				 "_"+partid+"_awarded");
+ 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
- 	    var saveval   = eval("document.classgrade.GD_"+user+
+ 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
- 				 "_"+partid+"_solved_s.value");
+ 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
- 	    var selname   = eval("document.classgrade.GD_"+user+"_"+partid+"_solved");
  	    if (saveval != "correct") {
  		scorename.value = point;
  		if (selname[0].selected != true) {
- Line 1866  sub viewgrades_js {
+ Line 3653  sub viewgrades_js {
  		}
  	    }
  	}
- 	var selval   = eval("document.classgrade.SELVAL_"+partid);
+ 	document.classgrade["SELVAL_"+partid][0].selected = true;
- 	selval[0].selected = true;
      }
      function writeRadText(partid,weight) {
- 	var selval   = eval("document.classgrade.SELVAL_"+partid);
+ 	var selval   = document.classgrade["SELVAL_"+partid];
- 	var radioButton = eval("document.classgrade.RADVAL_"+partid);
+ 	var radioButton = document.classgrade["RADVAL_"+partid];
- 	var textbox = eval("document.classgrade.TEXTVAL_"+partid);
+         var override = document.classgrade["FORCE_"+partid].checked;
- 	if (selval[1].selected) {
+ 	var textbox = document.classgrade["TEXTVAL_"+partid];
+ 	if (selval[1].selected || selval[2].selected) {
  	    for (var i=0; i<radioButton.length; i++) {
  		radioButton[i].checked=false;
- Line 1882  sub viewgrades_js {
+ Line 3669  sub viewgrades_js {
  	    textbox.value = "";
  	    for (i=0;i<document.classgrade.total.value;i++) {
- 		var user = eval("document.classgrade.ctr"+i+".value");
+ 		var user = document.classgrade["ctr"+i].value;
- 		var scorename = eval("document.classgrade.GD_"+user+
+ 		user = user.replace(new RegExp(':', 'g'),"_");
- 				     "_"+partid+"_awarded");
+ 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
- 		var saveval   = eval("document.classgrade.GD_"+user+
+ 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
- 				     "_"+partid+"_solved_s.value");
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
- 		var selname   = eval("document.classgrade.GD_"+user+
+ 		if ((saveval != "correct") || override) {
- 				     "_"+partid+"_solved");
- 		if (saveval != "correct") {
  		    scorename.value = "";
- 		    selname[1].selected = true;
+ 		    if (selval[1].selected) {
+ 			selname[1].selected = true;
+ 		    } else {
+ 			selname[2].selected = true;
+ 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value))
+ 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
+ 		    }
  		}
  	    }
  	} else {
  	    for (i=0;i<document.classgrade.total.value;i++) {
- 		var user = eval("document.classgrade.ctr"+i+".value");
+ 		var user = document.classgrade["ctr"+i].value;
- 		var scorename = eval("document.classgrade.GD_"+user+
+ 		user = user.replace(new RegExp(':', 'g'),"_");
- 				     "_"+partid+"_awarded");
+ 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
- 		var saveval   = eval("document.classgrade.GD_"+user+
+ 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
- 				     "_"+partid+"_solved_s.value");
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
- 		var selname   = eval("document.classgrade.GD_"+user+
+ 		if ((saveval != "correct") || override) {
- 				     "_"+partid+"_solved");
+ 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
- 		if (saveval != "correct") {
- 		    scorename.value = eval("document.classgrade.GD_"+user+
- 				     "_"+partid+"_awarded_s.value");;
  		    selname[0].selected = true;
  		}
  	    }
- Line 1913  sub viewgrades_js {
+ Line 3701  sub viewgrades_js {
      }
      function changeSelect(partid,user) {
- 	var selval = eval("document.classgrade.GD_"+user+'_'+partid+"_solved");
+ 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
- 	var textbox = eval("document.classgrade.GD_"+user+'_'+partid+"_awarded");
+ 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
  	var point  = textbox.value;
- 	var weight = eval("document.classgrade.weight_"+partid+".value");
+ 	var weight = document.classgrade["weight_"+partid].value;
  	if (isNaN(point) || parseFloat(point) < 0) {
- 	    alert("A number equal or greater than 0 is expected. Entered value = "+parseFloat(point));
+ 	    alert("$alertmsg"+parseFloat(point));
  	    textbox.value = "";
  	    return;
  	}
- Line 1935  sub viewgrades_js {
+ Line 3723  sub viewgrades_js {
      }
      function changeOneScore(partid,user) {
- 	var selval = eval("document.classgrade.GD_"+user+'_'+partid+"_solved");
+ 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
- 	if (selval[1].selected) {
+ 	if (selval[1].selected || selval[2].selected) {
- 	    var boxval = eval("document.classgrade.GD_"+user+'_'+partid+"_awarded");
+ 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
- 	    boxval.value = "";
+ 	    if (selval[2].selected) {
- 	}
+ 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
+ 	    }
+         }
      }
      function resetEntry(numpart) {
  	for (ctpart=0;ctpart<numpart;ctpart++) {
- 	    var partid = eval("document.classgrade.partid_"+ctpart+".value");
+ 	    var partid = document.classgrade["partid_"+ctpart].value;
- 	    var radioButton = eval("document.classgrade.RADVAL_"+partid);
+ 	    var radioButton = document.classgrade["RADVAL_"+partid];
- 	    var textbox = eval("document.classgrade.TEXTVAL_"+partid);
+ 	    var textbox = document.classgrade["TEXTVAL_"+partid];
- 	    var selval  = eval("document.classgrade.SELVAL_"+partid);
+ 	    var selval  = document.classgrade["SELVAL_"+partid];
  	    for (var i=0; i<radioButton.length; i++) {
  		radioButton[i].checked=false;
- Line 1956  sub viewgrades_js {
+ Line 3746  sub viewgrades_js {
  	    selval[0].selected = true;
  	    for (i=0;i<document.classgrade.total.value;i++) {
- 		var user = eval("document.classgrade.ctr"+i+".value");
+ 		var user = document.classgrade["ctr"+i].value;
- 		var resetscore = eval("document.classgrade.GD_"+user+
+ 		user = user.replace(new RegExp(':', 'g'),"_");
- 				      "_"+partid+"_awarded");
+ 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
- 		resetscore.value = eval("document.classgrade.GD_"+user+
+ 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
- 					"_"+partid+"_awarded_s.value");
+ 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
+ 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
- 		var saveselval   = eval("document.classgrade.GD_"+user+
+ 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
- 				     "_"+partid+"_solved_s.value");
+ 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
- 		var selname   = eval("document.classgrade.GD_"+user+"_"+partid+"_solved");
  		if (saveselval == "excused") {
  		    if (selname[1].selected == false) { selname[1].selected = true;}
  		} else {
- Line 1975  sub viewgrades_js {
+ Line 3763  sub viewgrades_js {
  	}
      }
- </script>
  VIEWJAVASCRIPT
  }
  #--- show scores for a section or whole class w/ option to change/update a score
  sub viewgrades {
-     my ($request) = shift;
+     my ($request,$symb) = @_;
+     my ($is_tool,$toolsymb);
+     if ($symb =~ /ext\.tool$/) {
+         $is_tool = 1;
+         $toolsymb = $symb;
+     }
      &viewgrades_js($request);
-     my ($symb,$url) = ($ENV{'form.symb'},$ENV{'form.url'});
+     #need to make sure we have the correct data for later EXT calls,
-     my $result='<h3><font color="#339933">Manual Grading</font></h3>';
+     #thus invalidate the cache
+     &Apache::lonnet::devalidatecourseresdata(
+                  $env{'course.'.$env{'request.course.id'}.'.num'},
+                  $env{'course.'.$env{'request.course.id'}.'.domain'});
+     &Apache::lonnet::clear_EXT_cache_status();
-     $result.='<font size=+1><b>Current Resource: </b>'.$ENV{'form.probTitle'}.'</font>'."\n";
+     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
      #view individual student submission form - called using Javascript viewOneStudent
-     $result.=&jscriptNform($url,$symb);
+     $result.=&jscriptNform($symb);
      #beginning of class grading form
+     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
      $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
- 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
- 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
  	'<input type="hidden" name="command" value="editgrades" />'."\n".
- 	'<input type="hidden" name="section" value="'.$ENV{'form.section'}.'" />'."\n".
+ 	&build_section_inputs().
- 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
+ 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
- 	'<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n";
+     #retrieve selected groups
-     $result.='<h3>Assign Common Grade To ';
+     my (@groups,$group_display);
-     if ($ENV{'form.section'} eq 'all') {
+     @groups = &Apache::loncommon::get_env_multiple('form.group');
- 	$result.='Class </h3>';
+     if (grep(/^all$/,@groups)) {
-     } elsif ($ENV{'form.section'} eq 'no') {
+         @groups = ('all');
- 	$result.='Students in no Section </h3>';
+     } elsif (grep(/^none$/,@groups)) {
+         @groups = ('none');
+     } elsif (@groups > 0) {
+         $group_display = join(', ',@groups);
+     }
+     my ($common_header,$specific_header,@sections,$section_display);
+     @sections = &Apache::loncommon::get_env_multiple('form.section');
+     if (grep(/^all$/,@sections)) {
+         @sections = ('all');
+         if ($group_display) {
+             $common_header = &mt('Assign Common Grade to Students in Group(s) [_1]',$group_display);
+             $specific_header = &mt('Assign Grade to Specific Students in Group(s) [_1]',$group_display);
+         } elsif (grep(/^none$/,@groups)) {
+             $common_header = &mt('Assign Common Grade to Students not assigned to any groups');
+             $specific_header = &mt('Assign Grade to Specific Students not assigned to any groups');
+         } else {
+ 	    $common_header = &mt('Assign Common Grade to Class');
+             $specific_header = &mt('Assign Grade to Specific Students in Class');
+         }
+     } elsif (grep(/^none$/,@sections)) {
+         @sections = ('none');
+         if ($group_display) {
+             $common_header = &mt('Assign Common Grade to Students in no Section and in Group(s) [_1]',$group_display);
+             $specific_header = &mt('Assign Grade to Specific Students in no Section and in Group(s)',$group_display);
+         } elsif (grep(/^none$/,@groups)) {
+             $common_header = &mt('Assign Common Grade to Students in no Section and in no Group');
+             $specific_header = &mt('Assign Grade to Specific Students in no Section and in no Group');
+         } else {
+             $common_header = &mt('Assign Common Grade to Students in no Section');
+ 	    $specific_header = &mt('Assign Grade to Specific Students in no Section');
+         }
      } else {
- 	$result.='Students in Section '.$ENV{'form.section'}.'</h3>';
+         $section_display = join (", ",@sections);
+         if ($group_display) {
+             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1], and in Group(s) [_2]',
+                                  $section_display,$group_display);
+             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1], and in Group(s) [_2]',
+                                    $section_display,$group_display);
+         } elsif (grep(/^none$/,@groups)) {
+             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1] and no Group',$section_display);
+             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1] and no Group',$section_display);
+         } else {
+             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
+ 	    $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
+         }
      }
-     $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
+     my %submit_types = &substatus_options();
- 	'<table border=0><tr bgcolor="#ffffdd"><td>';
+     my $submission_status = $submit_types{$env{'form.submitonly'}};
+     if ($env{'form.submitonly'} eq 'all') {
+         $result.= '<h3>'.$common_header.'</h3>';
+     } else {
+         my $text;
+         if ($is_tool) {
+             $text = &mt('(transaction status: "[_1]")',$submission_status);
+         } else {
+             $text = &mt('(submission status: "[_1]")',$submission_status);
+         }
+         $result.= '<h3>'.$common_header.'&nbsp;'.$text.'</h3>';
+     }
+     $result .= &Apache::loncommon::start_data_table();
      #radio buttons/text box for assigning points for a section or class.
      #handles different parts of a problem
-     my ($partlist,$handgrade) = &response_type($ENV{'form.url'});
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+     if ($res_error) {
+         return &navmap_errormsg();
+     }
      my %weight = ();
      my $ctsparts = 0;
-     $result.='<table border="0">';
      my %seen = ();
-     for (sort keys(%$handgrade)) {
+     my @part_response_id;
- 	my ($partid,$respid) = split (/_/,$_,2);
+     if ($is_tool) {
+         @part_response_id = ([0,'']);
+     } else {
+         @part_response_id = &flatten_responseType($responseType);
+     }
+     foreach my $part_response_id (@part_response_id) {
+     	my ($partid,$respid) = @{ $part_response_id };
+ 	my $part_resp = join('_',@{ $part_response_id });
  	next if $seen{$partid};
  	$seen{$partid}++;
- 	my ($responsetype,$handgrade)=split(/:/,$$handgrade{$_});
+ #	my $handgrade=$$handgrade{$part_resp};
  	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
  	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
- 	$result.='<input type="hidden" name="partid_'.
+ 	my $display_part=&get_display_part($partid,$symb);
- 	    $ctsparts.'" value="'.$partid.'" />'."\n";
+ 	my $radio.='<table border="0"><tr>';
- 	$result.='<input type="hidden" name="weight_'.
- 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
- 	$result.='<tr><td><b>Part  '.$partid.'&nbsp; &nbsp;Point:</b> </td><td>';
- 	$result.='<table border="0"><tr>';
  	my $ctr = 0;
  	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
- 	    $result.= '<td><input type="radio" name="RADVAL_'.$partid.'" '.
+ 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
  		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
- 		','.$ctr.')" />'.$ctr."</td>\n";
+ 		','.$ctr.')" />'.$ctr."</label></td>\n";
  	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
  	    $ctr++;
  	}
- 	$result.='</tr></table>';
+ 	$radio.='</tr></table>';
- 	$result.= '</td><td><b> or </b><input type="text" name="TEXTVAL_'.
+ 	my $line = '<input type="text" name="TEXTVAL_'.
- 	    $partid.'" size="4" '.'onChange="javascript:writePoint(\''.
+ 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
  		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
- 	    $weight{$partid}.' (problem weight)</td>'."\n";
+ 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
- 	$result.= '</td><td><select name="SELVAL_'.$partid.'"'.
+         $line.= '<td><b>'.&mt('Grade Status').':</b>'.
- 	    'onChange="javascript:writeRadText(\''.$partid.'\','.
+             '<select name="SELVAL_'.$partid.'" '.
- 		$weight{$partid}.')"> '.
+             'onchange="javascript:writeRadText(\''.$partid.'\','.
- 	    '<option selected="on"> </option>'.
+                 $weight{$partid}.')"> '.
- 	    '<option>excused</option></select></td></tr>'."\n";
+ 	    '<option selected="selected"> </option>'.
+ 	    '<option value="excused">'.&mt('excused').'</option>'.
+ 	    '<option value="reset status">'.&mt('reset status').'</option>'.
+ 	    '</select></td>'.
+             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
+ 	$line.='<input type="hidden" name="partid_'.
+ 	    $ctsparts.'" value="'.$partid.'" />'."\n";
+ 	$line.='<input type="hidden" name="weight_'.
+ 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
+ 	$result.=
+ 	    &Apache::loncommon::start_data_table_row()."\n".
+ 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
+ 	    &Apache::loncommon::end_data_table_row()."\n";
  	$ctsparts++;
      }
-     $result.='</table>'.'</td></tr></table>'.'</td></tr></table>'."\n".
+     $result.=&Apache::loncommon::end_data_table()."\n".
  	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
-     $result.='<input type="button" value="Reset" '.
+     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
- 	'onClick="javascript:resetEntry('.$ctsparts.');" TARGET=_self>';
+ 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
      #table listing all the students in a section/class
      #header of table
-     $result.= '<h3>Assign Grade to Specific Students in ';
+     if ($env{'form.submitonly'} eq 'all') {
-     if ($ENV{'form.section'} eq 'all') {
+         $result.= '<h3>'.$specific_header.'</h3>';
- 	$result.='the Class </h3>';
+     } else {
-     } elsif ($ENV{'form.section'} eq 'no') {
+         my $text;
- 	$result.='no Section </h3>';
+         if ($is_tool) {
-     } else {
+             $text = &mt('(transaction status: "[_1]")',$submission_status);
- 	$result.='Section '.$ENV{'form.section'}.'</h3>';
+         } else {
-     }
+             $text = &mt('(submission status: "[_1]")',$submission_status);
-     $result.= '<table border=0><tr><td bgcolor="#777777">'."\n".
+         }
- 	'<table border=0><tr bgcolor="#deffff">'.
+         $result.= '<h3>'.$specific_header.'&nbsp;'.$text.'</h3>';
- 	'<td><b>Fullname</b> <font color="#999999">(Username)</font></td>'."\n";
+     }
-     my (@parts) = sort(&getpartlist($url));
+     $result.= &Apache::loncommon::start_data_table().
+ 	      &Apache::loncommon::start_data_table_header_row().
+ 	      '<th>'.&mt('No.').'</th>'.
+ 	      '<th>'.&nameUserString('header')."</th>\n";
+     my $partserror;
+     my (@parts) = sort(&getpartlist($symb,\$partserror));
+     if ($partserror) {
+         return &navmap_errormsg();
+     }
+     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
+     my @partids = ();
      foreach my $part (@parts) {
- 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+ 	my $display=&Apache::lonnet::metadata($url,$part.'.display',$toolsymb);
- 	next if ($display =~ /Number of Attempts/);
+         my $narrowtext = &mt('Tries');
- 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
+ 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
+ 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name',$toolsymb); }
+ 	my ($partid) = &split_part_type($part);
+         push(@partids,$partid);
+ #
+ # FIXME: Looks like $display looks at English text
+ #
+ 	my $display_part=&get_display_part($partid,$symb);
  	if ($display =~ /^Partial Credit Factor/) {
- 	    my ($partid) = &split_part_type($part);
+ 	    $result.='<th>'.
- 	    $result.='<td><b>Score Part '.$partid.'<br />(weight = '.
+ 		&mt('Score Part: [_1][_2](weight = [_3])',
- 		$weight{$partid}.')</b></td>'."\n";
+ 		    $display_part,'<br />',$weight{$partid}).'</th>'."\n";
  	    next;
+ 	} else {
+ 	    if ($display =~ /Problem Status/) {
+ 		my $grade_status_mt = &mt('Grade Status');
+ 		$display =~ s{Problem Status}{$grade_status_mt<br />};
+ 	    }
+ 	    my $part_mt = &mt('Part:');
+ 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
  	}
- 	$display =~ s|Problem Status|Grade Status<br />|;
- 	$result.='<td><b>'.$display.'</b></td>'."\n";
+ 	$result.='<th>'.$display.'</th>'."\n";
      }
-     $result.='</tr>';
+     $result.=&Apache::loncommon::end_data_table_header_row();
+     my %last_resets =
+ 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
      #get info for each student
      #list all the students - with points and grade status
-     my (undef,undef,$fullname) = &getclasslist($ENV{'form.section'},'1');
+     my (undef,undef,$fullname) = &getclasslist(\@sections,'1',\@groups);
      my $ctr = 0;
-     foreach (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+     foreach (sort
- 	my $uname = $_;
+ 	     {
- 	$uname=~s/:/_/;
+ 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
- 	$result.='<input type="hidden" name="ctr'.$ctr.'" value="'.$uname.'" />'."\n";
+ 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
- 	$result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},
+ 		 }
- 				   $_,$$fullname{$_},\@parts,\%weight);
+ 		 return $a cmp $b;
- 	$ctr++;
+ 	     } (keys(%$fullname))) {
+ 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
+ 				   $_,$$fullname{$_},\@parts,\%weight,\$ctr,\%last_resets,$is_tool);
      }
-     $result.='</table></td></tr></table>';
+     $result.=&Apache::loncommon::end_data_table();
      $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
-     $result.='<input type="button" value="Submit Changes" '.
+     $result.='<input type="button" value="'.&mt('Save').'" '.
- 	'onClick="javascript:submit();" TARGET=_self /></form>'."\n";
+ 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
-     if (scalar(%$fullname) eq 0) {
+     if ($ctr == 0) {
- 	my $colspan=3+scalar(@parts);
+         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
- 	$result='<font color="red">There are no students in section "'.$ENV{'form.section'}.
+         $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>'.
- 	    '" with enrollment status "'.$ENV{'form.Status'}.'" to modify or grade.</font>';
+                 '<span class="LC_warning">';
+         if ($env{'form.submitonly'} eq 'all') {
+             if (grep(/^all$/,@sections)) {
+                 if (grep(/^all$/,@groups)) {
+                     $result .= &mt('There are no students with enrollment status [_1] to modify or grade.',
+                                    $stu_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students with no group assigned and with enrollment status [_1] to modify or grade.',
+                                    $stu_status);
+                 } else {
+                     $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] to modify or grade.',
+                                    $group_display,$stu_status);
+                 }
+             } elsif (grep(/^none$/,@sections)) {
+                 if (grep(/^all$/,@groups)) {
+                     $result .= &mt('There are no students in no section with enrollment status [_1] to modify or grade.',
+                                    $stu_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students in no section and no group with enrollment status [_1] to modify or grade.',
+                                    $stu_status);
+                 } else {
+                     $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] to modify or grade.',
+                                    $group_display,$stu_status);
+                 }
+             } else {
+                 if (grep(/^all$/,@groups)) {
+                     $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
+                                    $section_display,$stu_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] to modify or grade.',
+                                    $section_display,$stu_status);
+                 } else {
+                     $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] to modify or grade.',
+                                    $section_display,$group_display,$stu_status);
+                 }
+             }
+         } else {
+             if (grep(/^all$/,@sections)) {
+                 if (grep(/^all$/,@groups)) {
+                     $result .= &mt('There are no students with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                    $stu_status,$submission_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students with no group assigned with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                    $stu_status,$submission_status);
+                 } else {
+                     $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                    $group_display,$stu_status,$submission_status);
+                 }
+             } elsif (grep(/^none$/,@sections)) {
+                 if (grep(/^all$/,@groups)) {
+                     $result .= &mt('There are no students in no section with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                    $stu_status,$submission_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students in no section and no group with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                    $stu_status,$submission_status);
+                 } else {
+                     $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                    $group_display,$stu_status,$submission_status);
+                 }
+             } else {
+                 if (grep(/^all$/,@groups)) {
+ 	            $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+ 	                           $section_display,$stu_status,$submission_status);
+                 } elsif (grep(/^none$/,@groups)) {
+                     $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                    $section_display,$stu_status,$submission_status);
+                 } else {
+                     $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] and submission status "[_4]" to modify or grade.',
+                                    $section_display,$group_display,$stu_status,$submission_status);
+                 }
+             }
+         }
+ 	$result .= '</span><br />';
      }
-     $result.=&show_grading_menu_form($symb,$url);
      return $result;
  }
- #--- call by previous routine to display each student
+ #--- call by previous routine to display each student who satisfies submission filter.
  sub viewstudentgrade {
-     my ($url,$symb,$courseid,$student,$fullname,$parts,$weight) = @_;
+     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets,$is_tool) = @_;
      my ($uname,$udom) = split(/:/,$student);
-     $student=~s/:/_/;
      my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
-     my $result='<tr bgcolor="#ffffdd"><td>'.
+     my $submitonly = $env{'form.submitonly'};
+     unless (($submitonly eq 'all') || ($submitonly eq 'queued')) {
+         my %partstatus = ();
+         if (ref($parts) eq 'ARRAY') {
+             foreach my $apart (@{$parts}) {
+                 my ($part,$type) = &split_part_type($apart);
+                 my ($status,undef) = split(/_/,$record{"resource.$part.solved"},2);
+                 $status = 'nothing' if ($status eq '');
+                 $partstatus{$part}      = $status;
+                 my $subkey = "resource.$part.submitted_by";
+                 $partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
+             }
+             my $submitted = 0;
+             my $graded = 0;
+             my $incorrect = 0;
+             foreach my $key (keys(%partstatus)) {
+                 $submitted = 1 if ($partstatus{$key} ne 'nothing');
+                 $graded = 1 if ($partstatus{$key} =~ /^ungraded/);
+                 $incorrect = 1 if ($partstatus{$key} =~ /^incorrect/);
+                 my $partid = (split(/\./,$key))[1];
+                 if ($partstatus{'resource.'.$partid.'.'.$key.'.submitted_by'} ne '') {
+                     $submitted = 0;
+                 }
+             }
+             return if (!$submitted && ($submitonly eq 'yes' ||
+                                        $submitonly eq 'incorrect' ||
+                                        $submitonly eq 'graded'));
+             return if (!$graded && ($submitonly eq 'graded'));
+             return if (!$incorrect && $submitonly eq 'incorrect');
+         }
+     }
+     if ($submitonly eq 'queued') {
+         my ($cdom,$cnum) = split(/_/,$courseid);
+         my %queue_status =
+             &Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
+                                                     $udom,$uname);
+         return if (!defined($queue_status{'gradingqueue'}));
+     }
+     $$ctr++;
+     my %aggregates = ();
+     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
+ 	'<input type="hidden" name="ctr'.($$ctr-1).'" value="'.$student.'" />'.
+ 	"\n".$$ctr.'&nbsp;</td><td>&nbsp;'.
  	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
- 	'\')"; TARGET=_self>'.$fullname.'</a> '.
+ 	'\');" target="_self">'.$fullname.'</a> '.
- 	'<font color="#999999">('.$uname.($ENV{'user.domain'} eq $udom ? '' : ':'.$udom).')</font></td>'."\n";
+ 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
+     $student=~s/:/_/; # colon doen't work in javascript for names
      foreach my $apart (@$parts) {
  	my ($part,$type) = &split_part_type($apart);
  	my $score=$record{"resource.$part.$type"};
+         $result.='<td align="center">';
+         my ($aggtries,$totaltries);
+         unless (exists($aggregates{$part})) {
+ 	    $totaltries = $record{'resource.'.$part.'.tries'};
+ 	    $aggtries = $totaltries;
+             if ($$last_resets{$part}) {
+                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
+ 					   $part);
+             }
+             $result.='<input type="hidden" name="'.
+                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
+             $result.='<input type="hidden" name="'.
+                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
+             $aggregates{$part} = 1;
+         }
  	if ($type eq 'awarded') {
- 	    my $pts = $score eq '' ? '' : $score*$$weight{$part};
+ 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
  	    $result.='<input type="hidden" name="'.
  		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
- 	    $result.='<td align="middle"><input type="text" name="'.
+ 	    $result.='<input type="text" name="'.
  		'GD_'.$student.'_'.$part.'_awarded" '.
- 		'onChange="javascript:changeSelect(\''.$part.'\',\''.$student.
+                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
  		'\')" value="'.$pts.'" size="4" /></td>'."\n";
  	} elsif ($type eq 'solved') {
  	    my ($status,$foo)=split(/_/,$score,2);
  	    $status = 'nothing' if ($status eq '');
  	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
  		$part.'_solved_s" value="'.$status.'" />'."\n";
- 	    $result.='<td align="middle"><select name="'.
+ 	    $result.='&nbsp;<select name="'.
  		'GD_'.$student.'_'.$part.'_solved" '.
- 		'onChange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
+                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
- 	    my $optsel = '<option selected="on"> </option><option>excused</option>'."\n";
+ 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>'
- 	    $optsel = '<option> </option><option selected="on">excused</option>'."\n"
+ 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
- 		if ($status eq 'excused');
+ 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
- 	    $result.=$optsel;
+ 	    $result.="</select>&nbsp;</td>\n";
- 	    $result.="</select></td>\n";
+ 	} else {
- #	} else {
+ 	    $result.='<input type="hidden" name="'.
- #	    $result.='<input type="hidden" name="'.
+ 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
- #		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
+ 		    "\n";
- #		    "\n";
+ 	    $result.='<input type="text" name="'.
- #	    $result.='<td align="middle"><input type="text" name="'.
+ 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
- #		'GD_'.$student.'_'.$part.'_'.$type.'" '.
+ 		'value="'.$score.'" size="4" /></td>'."\n";
- #		'value="'.$score.'" size="4" /></td>'."\n";
  	}
      }
-     $result.='</tr>';
+     $result.=&Apache::loncommon::end_data_table_row();
      return $result;
  }
  #--- change scores for all the students in a section/class
  #    record does not get update if unchanged
  sub editgrades {
-     my ($request) = @_;
+     my ($request,$symb) = @_;
+     my $toolsymb;
-     my $symb=$ENV{'form.symb'};
+     if ($symb =~ /ext\.tool$/) {
-     my $url =$ENV{'form.url'};
+         $toolsymb = $symb;
-     my $title='<h3><font color="#339933">Current Grade Status</font></h3>';
+     }
-     $title.='<font size=+1><b>Current Resource: </b>'.$ENV{'form.probTitle'}.'</font><br />'."\n";
-     $title.='<font size=+1><b>Section: </b>'.$ENV{'form.section'}.'</font>'."\n";
-     my $result= '<table border="0"><tr><td bgcolor="#777777">'."\n";
-     $result.= '<table border="0"><tr bgcolor="#deffff">'.
- 	'<td rowspan=2><b>Username</b></td><td rowspan=2><b>Domain</b></td><td rowspan=2><b>Fullname</b></td>'."\n";
+     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
+     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
+     $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
+     my $result= &Apache::loncommon::start_data_table().
+ 	&Apache::loncommon::start_data_table_header_row().
+ 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
+ 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
      my %scoreptr = (
  		    'correct'  =>'correct_by_override',
  		    'incorrect'=>'incorrect_by_override',
  		    'excused'  =>'excused',
  		    'ungraded' =>'ungraded_attempted',
+                     'credited' =>'credit_attempted',
  		    'nothing'  => '',
  		    );
-     my ($classlist,undef,$fullname) = &getclasslist($ENV{'form.section'},'0');
+     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
      my (@partid);
      my %weight = ();
      my %columns = ();
      my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
-     my (@parts) = sort(&getpartlist($url));
+     my $partserror;
+     my (@parts) = sort(&getpartlist($symb,\$partserror));
+     if ($partserror) {
+         return &navmap_errormsg();
+     }
      my $header;
-     while ($ctr < $ENV{'form.totalparts'}) {
+     while ($ctr < $env{'form.totalparts'}) {
- 	my $partid = $ENV{'form.partid_'.$ctr};
+ 	my $partid = $env{'form.partid_'.$ctr};
- 	push @partid,$partid;
+ 	push(@partid,$partid);
- 	$weight{$partid} = $ENV{'form.weight_'.$partid};
+ 	$weight{$partid} = $env{'form.weight_'.$partid};
  	$ctr++;
      }
+     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
+     my $totcolspan = 0;
      foreach my $partid (@partid) {
- 	$header .= '<td align="center">&nbsp;<b>Old Score</b>&nbsp;</td>'.
+ 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
- 	    '<td align="center">&nbsp;<b>New Score</b>&nbsp;</td>';
+ 	    '<th align="center">'.&mt('New Score').'</th>';
  	$columns{$partid}=2;
  	foreach my $stores (@parts) {
  	    my ($part,$type) = &split_part_type($stores);
  	    if ($part !~ m/^\Q$partid\E/) { next;}
  	    if ($type eq 'awarded' || $type eq 'solved') { next; }
- 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
+ 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display',$toolsymb);
- 	    $display =~ s/\[Part: (\w)+\]//;
+ 	    $display =~ s/\[Part: \Q$part\E\]//;
- 	    $header .= '<td align="center">&nbsp;<b>Old</b> '.$display.'&nbsp;</td>'.
+             my $narrowtext = &mt('Tries');
- 		'<td align="center">&nbsp;<b>New</b> '.$display.'&nbsp;</td>';
+ 	    $display =~ s/Number of Attempts/$narrowtext/;
+ 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
+ 		'<th align="center">'.&mt('New').' '.$display.'</th>';
  	    $columns{$partid}+=2;
  	}
+         $totcolspan += $columns{$partid};
      }
      foreach my $partid (@partid) {
- 	$result .= '<td colspan="'.$columns{$partid}.
+ 	my $display_part=&get_display_part($partid,$symb);
- 	    '" align="center"><b>Part '.$partid.
+ 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
- 	    '</b> (Weight = '.$weight{$partid}.')</td>';
+ 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
+ 	    '</th>';
      }
-     $result .= '</tr><tr bgcolor="#deffff">';
+     $result .= &Apache::loncommon::end_data_table_header_row().
-     $result .= $header;
+ 	&Apache::loncommon::start_data_table_header_row().
-     $result .= '</tr>'."\n";
+ 	$header.
-     my $noupdate;
+ 	&Apache::loncommon::end_data_table_header_row();
-     for ($i=0; $i<$ENV{'form.total'}; $i++) {
+     my @noupdate;
- 	my $line;
+     my ($updateCtr,$noupdateCtr) = (1,1);
- 	my $user = $ENV{'form.ctr'.$i};
+     for ($i=0; $i<$env{'form.total'}; $i++) {
- 	my $usercolon = $user;
+ 	my $user = $env{'form.ctr'.$i};
- 	$usercolon =~s/_/:/;
+ 	my ($uname,$udom)=split(/:/,$user);
- 	my ($uname,$udom)=split(/_/,$user);
  	my %newrecord;
  	my $updateflag = 0;
- 	$line .= '<tr bgcolor="#ffffde"><td>'.$uname.'&nbsp;</td><td>'.
- 	    $udom.'&nbsp;</td><td>'.
- 		$$fullname{$usercolon}.'&nbsp;</td>';
  	my $usec=$classlist->{"$uname:$udom"}[5];
- 	if (!&canmodify($usec)) {
+ 	my $canmodify = &canmodify($usec);
- 	    my $numcols=scalar(@partid)*(scalar(@parts)-1)*2;
+ 	my $line = '<td'.($canmodify?'':' colspan="2"').'>'.
- 	    $noupdate.=$line."<td colspan=\"$numcols\"><font color=\"red\">Not allowed to modify student</font></td></tr>";
+ 		   &nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
+ 	if (!$canmodify) {
+ 	    push(@noupdate,
+ 		 $line."<td colspan=\"$totcolspan\"><span class=\"LC_warning\">".
+ 		 &mt('Not allowed to modify student')."</span></td>");
  	    next;
  	}
+         my %aggregate = ();
+         my $aggregateflag = 0;
+ 	$user=~s/:/_/; # colon doen't work in javascript for names
  	foreach (@partid) {
- 	    my $old_aw    = $ENV{'form.GD_'.$user.'_'.$_.'_awarded_s'};
+ 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
  	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
  	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
- 	    my $old_score = $scoreptr{$ENV{'form.GD_'.$user.'_'.$_.'_solved_s'}};
+ 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
+ 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
- 	    my $awarded   = $ENV{'form.GD_'.$user.'_'.$_.'_awarded'};
  	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
  	    my $partial   = $awarded eq '' ? '' : $pcr;
  	    my $score;
  	    if ($partial eq '') {
- 		$score = $scoreptr{$ENV{'form.GD_'.$user.'_'.$_.'_solved_s'}};
+ 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
  	    } elsif ($partial > 0) {
  		$score = 'correct_by_override';
  	    } elsif ($partial == 0) {
  		$score = 'incorrect_by_override';
  	    }
- 	    $score = 'excused' if (($ENV{'form.GD_'.$user.'_'.$_.'_solved'} eq 'excused') &&
+ 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
- 				   ($score ne 'excused'));
+ 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
- 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
- 		'<td align="center">'.$awarded.
- 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
- 	    if (!($old_part eq $partial && $old_score eq $score)) {
+ 	    $newrecord{'resource.'.$_.'.regrader'}=
+ 		"$env{'user.name'}:$env{'user.domain'}";
+ 	    if ($dropMenu eq 'reset status' &&
+ 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
+ 		$newrecord{'resource.'.$_.'.tries'} = '';
+ 		$newrecord{'resource.'.$_.'.solved'} = '';
+ 		$newrecord{'resource.'.$_.'.award'} = '';
+ 		$newrecord{'resource.'.$_.'.awarded'} = '';
+ 		$updateflag = 1;
+                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
+                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
+                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
+                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
+                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
+                     $aggregateflag = 1;
+                 }
+ 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
  		$updateflag = 1;
  		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
  		$newrecord{'resource.'.$_.'.solved'}   = $score;
  		$rec_update++;
  	    }
+ 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
+ 		'<td align="center">'.$awarded.
+ 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
  	    my $partid=$_;
  	    foreach my $stores (@parts) {
  		my ($part,$type) = &split_part_type($stores);
  		if ($part !~ m/^\Q$partid\E/) { next;}
  		if ($type eq 'awarded' || $type eq 'solved') { next; }
- 		my $old_aw    = $ENV{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
+ 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
- 		my $awarded   = $ENV{'form.GD_'.$user.'_'.$part.'_'.$type};
+ 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
  		if ($awarded ne '' && $awarded ne $old_aw) {
  		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
- 		    $newrecord{'resource.'.$part.'regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
  		    $updateflag=1;
  		}
  		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
  		    '<td align="center">'.$awarded.'&nbsp;</td>';
  	    }
  	}
- 	$line.='</tr>'."\n";
+ 	$line.="\n";
+ 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
  	if ($updateflag) {
  	    $count++;
- 	    &Apache::lonnet::cstore(\%newrecord,$symb,$ENV{'request.course.id'},
+ 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
  				    $udom,$uname);
- 	    $result.=$line;
+ 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
+ 					      $cnum,$udom,$uname)) {
+ 		# need to figure out if should be in queue.
+ 		my %record =
+ 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
+ 					     $udom,$uname);
+ 		my $all_graded = 1;
+ 		my $none_graded = 1;
+ 		foreach my $part (@parts) {
+ 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
+ 			$all_graded = 0;
+ 		    } else {
+ 			$none_graded = 0;
+ 		    }
+ 		}
+ 		if ($all_graded || $none_graded) {
+ 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
+ 							   $symb,$cdom,$cnum,
+ 							   $udom,$uname);
+ 		}
+ 	    }
+ 	    $result.=&Apache::loncommon::start_data_table_row().
+ 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
+ 		&Apache::loncommon::end_data_table_row();
+ 	    $updateCtr++;
  	} else {
- 	    $noupdate.=$line;
+ 	    push(@noupdate,
- 	}
+ 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
-     }
+ 	    $noupdateCtr++;
-     if ($noupdate) {
+ 	}
- 	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
+         if ($aggregateflag) {
- 	$result .= '<tr bgcolor="#ffffff"><td align="center" colspan="'.$numcols.'">No Changes Occured For the Students Below</td></tr>'.$noupdate;
+             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
+ 				  $cdom,$cnum);
+         }
      }
-     $result .= '</table></td></tr></table>'."\n".
+     if (@noupdate) {
- 	&show_grading_menu_form ($symb,$url);
+         my $numcols=$totcolspan+2;
-     my $msg = '<b>Number of records updated = '.$rec_update.
+ 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
- 	' for '.$count.' student'.($count <= 1 ? '' : 's').'.</b><br />'.
+ 	    '<td align="center" colspan="'.$numcols.'">'.
- 	'<b>Total number of students = '.$ENV{'form.total'}.'</b><br />';
+ 	    &mt('No Changes Occurred For the Students Below').
+ 	    '</td>'.
+ 	    &Apache::loncommon::end_data_table_row();
+ 	foreach my $line (@noupdate) {
+ 	    $result.=
+ 		&Apache::loncommon::start_data_table_row().
+ 		$line.
+ 		&Apache::loncommon::end_data_table_row();
+ 	}
+     }
+     $result .= &Apache::loncommon::end_data_table();
+     my $msg = '<p><b>'.
+ 	&mt('Number of records updated = [_1] for [quant,_2,student].',
+ 	    $rec_update,$count).'</b><br />'.
+ 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
+ 	'</b></p>';
      return $title.$msg.$result;
  }
- Line 2308  sub split_part_type {
+ Line 4419  sub split_part_type {
      my ($partstr) = @_;
      my ($temp,@allparts)=split(/_/,$partstr);
      my $type=pop(@allparts);
-     my $part=join('.',@allparts);
+     my $part=join('_',@allparts);
      return ($part,$type);
  }
- Line 2323  sub split_part_type {
+ Line 4434  sub split_part_type {
  #
  #--- Javascript to handle csv upload
  sub csvupload_javascript_reverse_associate {
+     my $error1=&mt('You need to specify the username, the student/employee ID, or the clicker ID');
+     my $error2=&mt('You need to specify at least one grading field');
+   &js_escape(\$error1);
+   &js_escape(\$error2);
    return(<<ENDPICK);
    function verify(vf) {
      var foundsomething=0;
      var founduname=0;
-     var founddomain=0;
+     var foundID=0;
+     var foundclicker=0;
      for (i=0;i<=vf.nfields.value;i++) {
        tw=eval('vf.f'+i+'.selectedIndex');
-       if (i==0 && tw!=0) { founduname=1; }
+       if (i==0 && tw!=0) { foundID=1; }
-       if (i==1 && tw!=0) { founddomain=1; }
+       if (i==1 && tw!=0) { founduname=1; }
-       if (i!=0 && i!=1 && tw!=0) { foundsomething=1; }
+       if (i==2 && tw!=0) { foundclicker=1; }
-     }
+       if (i!=0 && i!=1 && i!=2 && i!=3 && tw!=0) { foundsomething=1; }
-     if (founduname==0 || founddomain==0) {
+     }
-       alert('You need to specify at both the username and domain');
+     if (founduname==0 && foundID==0 && foundclicker==0) {
-       return;
+ 	alert('$error1');
+ 	return;
      }
      if (foundsomething==0) {
-       alert('You need to specify at least one grading field');
+ 	alert('$error2');
-       return;
+ 	return;
      }
      vf.submit();
    }
- Line 2361  ENDPICK
+ Line 4478  ENDPICK
  }
  sub csvupload_javascript_forward_associate {
+     my $error1=&mt('You need to specify the username, the student/employee ID, or the clicker ID');
+     my $error2=&mt('You need to specify at least one grading field');
+   &js_escape(\$error1);
+   &js_escape(\$error2);
    return(<<ENDPICK);
    function verify(vf) {
      var foundsomething=0;
      var founduname=0;
-     var founddomain=0;
+     var foundID=0;
+     var foundclicker=0;
      for (i=0;i<=vf.nfields.value;i++) {
        tw=eval('vf.f'+i+'.selectedIndex');
-       if (tw==1) { founduname=1; }
+       if (tw==1) { foundID=1; }
-       if (tw==2) { founddomain=1; }
+       if (tw==2) { founduname=1; }
-       if (tw>2) { foundsomething=1; }
+       if (tw==3) { foundclicker=1; }
-     }
+       if (tw>4) { foundsomething=1; }
-     if (founduname==0 || founddomain==0) {
+     }
-       alert('You need to specify at both the username and domain');
+     if (founduname==0 && foundID==0 && ƒoundclicker==0) {
-       return;
+ 	alert('$error1');
+ 	return;
      }
      if (foundsomething==0) {
-       alert('You need to specify at least one grading field');
+ 	alert('$error2');
-       return;
+ 	return;
      }
      vf.submit();
    }
- Line 2396  ENDPICK
+ Line 4519  ENDPICK
  }
  sub csvuploadmap_header {
-     my ($request,$symb,$url,$datatoken,$distotal)= @_;
+     my ($request,$symb,$datatoken,$distotal)= @_;
      my $javascript;
-     if ($ENV{'form.upfile_associate'} eq 'reverse') {
+     if ($env{'form.upfile_associate'} eq 'reverse') {
  	$javascript=&csvupload_javascript_reverse_associate();
      } else {
  	$javascript=&csvupload_javascript_forward_associate();
      }
-     my ($result,$resptype,$hdgrade,$partlist,$handgrade) = &showResourceInfo($url,$ENV{'form.probTitle'});
+     $symb = &Apache::lonenc::check_encrypt($symb);
+     $request->print('<form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">'.
+                     &mt('Total number of records found in file: [_1]',$distotal).'<hr />'.
+                     &mt('Associate entries from the uploaded file with as many fields as you can.'));
+     my $reverse=&mt("Reverse Association");
      $request->print(<<ENDPICK);
- <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
+ <br />
- <h3><font color="#339933">Uploading Class Grades</font></h3>
+ <input type="button" value="$reverse" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
- $result
- <hr>
- <h3>Identify fields</h3>
- Total number of records found in file: $distotal <hr />
- Enter as many fields as you can. The system will inform you and bring you back
- to this page if the data selected is insufficient to run your class.<hr />
- <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
  <input type="hidden" name="associate"  value="" />
  <input type="hidden" name="phase"      value="three" />
  <input type="hidden" name="datatoken"  value="$datatoken" />
- <input type="hidden" name="fileupload" value="$ENV{'form.fileupload'}" />
+ <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
- <input type="hidden" name="upfiletype" value="$ENV{'form.upfiletype'}" />
+ <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
  <input type="hidden" name="upfile_associate"
-                                        value="$ENV{'form.upfile_associate'}" />
+                                        value="$env{'form.upfile_associate'}" />
  <input type="hidden" name="symb"       value="$symb" />
- <input type="hidden" name="url"        value="$url" />
+ <input type="hidden" name="command"    value="csvuploadoptions" />
- <input type="hidden" name="saveState"  value="$ENV{'form.saveState'}" />
- <input type="hidden" name="probTitle"  value="$ENV{'form.probTitle'}" />
- <input type="hidden" name="command"    value="csvuploadassign" />
  <hr />
- <script type="text/javascript" language="Javascript">
- $javascript
- </script>
  ENDPICK
-     $request->print(&show_grading_menu_form($symb,$url));
+     $request->print(&Apache::lonhtmlcommon::scripttag($javascript));
      return '';
  }
  sub csvupload_fields {
-     my ($url) = @_;
+     my ($symb,$errorref) = @_;
-     my (@parts) = &getpartlist($url);
+     my $toolsymb;
-     my @fields=(['username','Student Username'],['domain','Student Domain']);
+     if ($symb =~ /ext\.tool$/) {
+         $toolsymb = $symb;
+     }
+     my (@parts) = &getpartlist($symb,$errorref);
+     if (ref($errorref)) {
+         if ($$errorref) {
+             return;
+         }
+     }
+     my @fields=(['ID','Student/Employee ID'],
+ 		['username','Student Username'],
+ 		['clicker','Clicker ID'],
+ 		['domain','Student Domain']);
+     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
      foreach my $part (sort(@parts)) {
  	my @datum;
- 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+ 	my $display=&Apache::lonnet::metadata($url,$part.'.display',$toolsymb);
  	my $name=$part;
- 	if  (!$display) { $display = $name; }
+ 	if (!$display) { $display = $name; }
  	@datum=($name,$display);
+ 	if ($name=~/^stores_(.*)_awarded/) {
+ 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
+ 	}
  	push(@fields,\@datum);
      }
      return (@fields);
- Line 2455  sub csvupload_fields {
+ Line 4585  sub csvupload_fields {
  sub csvuploadmap_footer {
      my ($request,$i,$keyfields) =@_;
+     my $buttontext = &mt('Assign Grades');
      $request->print(<<ENDPICK);
  </table>
  <input type="hidden" name="nfields" value="$i" />
  <input type="hidden" name="keyfields" value="$keyfields" />
- <input type="button" onClick="javascript:verify(this.form)" value="Assign Grades" /><br />
+ <input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
  </form>
  ENDPICK
  }
- sub upcsvScores_form {
+ sub checkforfile_js {
-     my ($request) = shift;
+     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
-     my ($symb,$url)=&get_symb_and_url($request);
+     &js_escape(\$alertmsg);
-     if (!$symb) {return '';}
+     my $result = &Apache::lonhtmlcommon::scripttag(<<CSVFORMJS);
-     my $result =<<CSVFORMJS;
- <script type="text/javascript" language="javascript">
      function checkUpload(formname) {
  	if (formname.upfile.value == "") {
- 	    alert("Please use the browse button to select a file from your local directory.");
+ 	    alert("$alertmsg");
  	    return false;
  	}
  	formname.submit();
      }
-     </script>
  CSVFORMJS
-     $ENV{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
+     return $result;
-     my ($table) = &showResourceInfo($url,$ENV{'form.probTitle'});
+ }
-     $result.=$table;
-     $result.='<br /><table width=100% border=0><tr><td bgcolor="#777777">'."\n";
+ sub upcsvScores_form {
-     $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
+     my ($request,$symb) = @_;
-     $result.='&nbsp;<b>Specify a file containing the class scores for current resource'.
+     if (!$symb) {return '';}
- 	'.</b></td></tr>'."\n";
+     my $result=&checkforfile_js();
-     $result.='<tr bgcolor=#ffffe6><td>'."\n";
+     $result.=&Apache::loncommon::start_data_table().
+              &Apache::loncommon::start_data_table_header_row().
+              '<th>'.&mt('Specify a file containing the class scores for current resource.').'</th>'.
+              &Apache::loncommon::end_data_table_header_row().
+              &Apache::loncommon::start_data_table_row().'<td>';
+     my $upload=&mt("Upload Scores");
      my $upfile_select=&Apache::loncommon::upfile_select_html();
+     my $ignore=&mt('Ignore First Line');
+     $symb = &Apache::lonenc::check_encrypt($symb);
      $result.=<<ENDUPFORM;
  <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
  <input type="hidden" name="symb" value="$symb" />
- <input type="hidden" name="url" value="$url" />
  <input type="hidden" name="command" value="csvuploadmap" />
- <input type="hidden" name="probTitle" value="$ENV{'form.probTitle'}" />
- <input type="hidden" name="saveState"  value="$ENV{'form.saveState'}" />
  $upfile_select
- <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Scores" />
+ <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
  </form>
  ENDUPFORM
-     $result.='</td></tr></table>'."\n";
+     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
-     $result.='</td></tr></table><br /><br />'."\n";
+                            &mt("How do I create a CSV file from a spreadsheet")).
-     $result.=&show_grading_menu_form($symb,$url);
+              '</td>'.
+             &Apache::loncommon::end_data_table_row().
+             &Apache::loncommon::end_data_table();
      return $result;
  }
  sub csvuploadmap {
-     my ($request)= @_;
+     my ($request,$symb) = @_;
-     my ($symb,$url)=&get_symb_and_url($request);
      if (!$symb) {return '';}
      my $datatoken;
-     if (!$ENV{'form.datatoken'}) {
+     if (!$env{'form.datatoken'}) {
  	$datatoken=&Apache::loncommon::upfile_store($request);
      } else {
- 	$datatoken=$ENV{'form.datatoken'};
+ 	$datatoken=&Apache::loncommon::valid_datatoken($env{'form.datatoken'});
- 	&Apache::loncommon::load_tmp_file($request);
+         if ($datatoken ne '') {
+ 	    &Apache::loncommon::load_tmp_file($request,$datatoken);
+         }
      }
      my @records=&Apache::loncommon::upfile_record_sep();
-     &csvuploadmap_header($request,$symb,$url,$datatoken,$#records+1);
+     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
      my ($i,$keyfields);
      if (@records) {
- 	my @fields=&csvupload_fields($url);
+         my $fieldserror;
+ 	my @fields=&csvupload_fields($symb,\$fieldserror);
- 	if ($ENV{'form.upfile_associate'} eq 'reverse') {
+         if ($fieldserror) {
+             $request->print(&navmap_errormsg());
+             return;
+         }
+ 	if ($env{'form.upfile_associate'} eq 'reverse') {
  	    &Apache::loncommon::csv_print_samples($request,\@records);
  	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
  							  \@fields);
- Line 2535  sub csvuploadmap {
+ Line 4673  sub csvuploadmap {
  	    unshift(@fields,['none','']);
  	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
  							    \@fields);
- 	    my %sone=&Apache::loncommon::record_sep($records[0]);
+             foreach my $rec (@records) {
- 	    $keyfields=join(',',sort(keys(%sone)));
+                 my %temp = &Apache::loncommon::record_sep($rec);
+                 if (%temp) {
+                     $keyfields=join(',',sort(keys(%temp)));
+                     last;
+                 }
+             }
  	}
      }
      &csvuploadmap_footer($request,$i,$keyfields);
-     $request->print(&show_grading_menu_form($symb,$url));
      return '';
  }
- sub csvuploadassign {
+ sub csvuploadoptions {
-     my ($request)= @_;
+     my ($request,$symb)= @_;
-     my ($symb,$url)=&get_symb_and_url($request);
+     my $overwrite=&mt('Overwrite any existing score');
-     if (!$symb) {return '';}
+     $request->print(<<ENDPICK);
-     &Apache::loncommon::load_tmp_file($request);
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
-     my @gradedata = &Apache::loncommon::upfile_record_sep();
+ <input type="hidden" name="command"    value="csvuploadassign" />
-     my @keyfields = split(/\,/,$ENV{'form.keyfields'});
+ <p>
-     my %fields=();
+ <label>
-     for (my $i=0; $i<=$ENV{'form.nfields'}; $i++) {
+    <input type="checkbox" name="overwite_scores" checked="checked" />
- 	if ($ENV{'form.upfile_associate'} eq 'reverse') {
+    $overwrite
- 	    if ($ENV{'form.f'.$i} ne 'none') {
+ </label>
- 		$fields{$keyfields[$i]}=$ENV{'form.f'.$i};
+ </p>
+ ENDPICK
+     my %fields=&get_fields();
+     if (!defined($fields{'domain'})) {
+ 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
+ 	$request->print("\n<p>".&mt('Users are in domain: [_1]',$domform)."</p>\n");
+     }
+     foreach my $key (sort(keys(%env))) {
+ 	if ($key !~ /^form\.(.*)$/) { next; }
+ 	my $cleankey=$1;
+ 	if ($cleankey eq 'command') { next; }
+ 	$request->print('<input type="hidden" name="'.$cleankey.
+ 			'"  value="'.$env{$key}.'" />'."\n");
+     }
+     # FIXME do a check for any duplicated user ids...
+     # FIXME do a check for any invalid user ids?...
+     $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
+ <hr /></form>'."\n");
+     return '';
+ }
+ sub get_fields {
+     my %fields;
+     my @keyfields = split(/\,/,$env{'form.keyfields'});
+     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
+ 	if ($env{'form.upfile_associate'} eq 'reverse') {
+ 	    if ($env{'form.f'.$i} ne 'none') {
+ 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
  	    }
  	} else {
- 	    if ($ENV{'form.f'.$i} ne 'none') {
+ 	    if ($env{'form.f'.$i} ne 'none') {
- 		$fields{$ENV{'form.f'.$i}}=$keyfields[$i];
+ 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
  	    }
  	}
      }
-     $request->print('<h3>Assigning Grades</h3>');
+     return %fields;
-     my $courseid=$ENV{'request.course.id'};
+ }
+ sub csvuploadassign {
+     my ($request,$symb) = @_;
+     if (!$symb) {return '';}
+     my $error_msg = '';
+     my $datatoken = &Apache::loncommon::valid_datatoken($env{'form.datatoken'});
+     if ($datatoken ne '') {
+         &Apache::loncommon::load_tmp_file($request,$datatoken);
+     }
+     my @gradedata = &Apache::loncommon::upfile_record_sep();
+     my %fields=&get_fields();
+     my $courseid=$env{'request.course.id'};
      my ($classlist) = &getclasslist('all',0);
      my @notallowed;
      my @skipped;
+     my @warnings;
      my $countdone=0;
      foreach my $grade (@gradedata) {
  	my %entries=&Apache::loncommon::record_sep($grade);
+ 	my $domain;
+ 	if ($entries{$fields{'domain'}}) {
+ 	    $domain=$entries{$fields{'domain'}};
+ 	} else {
+ 	    $domain=$env{'form.default_domain'};
+ 	}
+ 	$domain=~s/\s//g;
  	my $username=$entries{$fields{'username'}};
- 	my $domain=$entries{$fields{'domain'}};
+ 	$username=~s/\s//g;
+ 	if (!$username) {
+ 	    my $id=$entries{$fields{'ID'}};
+ 	    $id=~s/\s//g;
+             if ($id ne '') {
+ 	        my %ids=&Apache::lonnet::idget($domain,[$id]);
+ 	        $username=$ids{$id};
+             } else {
+                 if ($entries{$fields{'clicker'}}) {
+                     my $clicker = $entries{$fields{'clicker'}};
+                     $clicker=~s/\s//g;
+                     if ($clicker ne '') {
+                         my %clickers = &Apache::lonnet::idget($domain,[$clicker],'clickers');
+                         if ($clickers{$clicker} ne '') {
+                             my $match = 0;
+                             my @inclass;
+                             foreach my $poss (split(/,/,$clickers{$clicker})) {
+                                 if (exists($$classlist{"$poss:$domain"})) {
+                                     $username = $poss;
+                                     push(@inclass,$poss);
+                                     $match ++;
+                                 }
+                             }
+                             if ($match > 1) {
+                                 undef($username);
+                                 $request->print('<p class="LC_warning">'.
+                                                 &mt('Score not saved for clicker: [_1] (matched multiple usernames: [_2])',
+                                                 $clicker,join(', ',@inclass)).'</p>');
+                             }
+                         }
+                     }
+                 }
+             }
+ 	}
  	if (!exists($$classlist{"$username:$domain"})) {
- 	    push(@skipped,"$username:$domain");
+ 	    my $id=$entries{$fields{'ID'}};
+ 	    $id=~s/\s//g;
+             my $clicker = $entries{$fields{'clicker'}};
+             $clicker=~s/\s//g;
+             if ($clicker) {
+                 push(@skipped,"$clicker:$domain");
+ 	    } elsif ($id) {
+ 		push(@skipped,"$id:$domain");
+ 	    } else {
+ 		push(@skipped,"$username:$domain");
+ 	    }
  	    next;
  	}
  	my $usec=$classlist->{"$username:$domain"}[5];
- Line 2583  sub csvuploadassign {
+ Line 4816  sub csvuploadassign {
  	    push(@notallowed,"$username:$domain");
  	    next;
  	}
+ 	my %points;
  	my %grades;
  	foreach my $dest (keys(%fields)) {
- 	    if ($dest eq 'username' || $dest eq 'domain') { next; }
+ 	    if ($dest eq 'ID' || $dest eq 'username' ||
- 	    if ($entries{$fields{$dest}} eq '') { next; }
+ 		$dest eq 'domain') { next; }
- 	    my $store_key=$dest;
+ 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
- 	    $store_key=~s/^stores/resource/;
+ 	    if ($dest=~/stores_(.*)_points/) {
- 	    $store_key=~s/_/\./g;
+ 		my $part=$1;
- 	    $grades{$store_key}=$entries{$fields{$dest}};
+ 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
- 	}
+ 					      $symb,$domain,$username);
- 	$grades{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";
+                 if ($wgt) {
- 	&Apache::lonnet::cstore(\%grades,$symb,$ENV{'request.course.id'},
+                     $entries{$fields{$dest}}=~s/\s//g;
- 				$domain,$username);
+                     my $pcr=$entries{$fields{$dest}} / $wgt;
- 	$request->print('.');
+                     my $award=($pcr == 0) ? 'incorrect_by_override'
- 	$request->rflush();
+                                           : 'correct_by_override';
- 	$countdone++;
+                     if ($pcr>1) {
+                        push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
+                     }
+                     $grades{"resource.$part.awarded"}=$pcr;
+                     $grades{"resource.$part.solved"}=$award;
+                     $points{$part}=1;
+                 } else {
+                     $error_msg = "<br />" .
+                         &mt("Some point values were assigned"
+                             ." for problems with a weight "
+                             ."of zero. These values were "
+                             ."ignored.");
+                 }
+ 	    } else {
+ 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
+ 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
+ 		my $store_key=$dest;
+ 		$store_key=~s/^stores/resource/;
+ 		$store_key=~s/_/\./g;
+ 		$grades{$store_key}=$entries{$fields{$dest}};
+ 	    }
+ 	}
+ 	if (! %grades) {
+            push(@skipped,&mt("[_1]: no data to save","$username:$domain"));
+         } else {
+ 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
+ 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
+ 					   $env{'request.course.id'},
+ 					   $domain,$username);
+ 	   if ($result eq 'ok') {
+ # Successfully stored
+ 	      $request->print('.');
+ # Remove from grading queue
+               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
+                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
+                                              $env{'course.'.$env{'request.course.id'}.'.num'},
+                                              $domain,$username);
+               $countdone++;
+            } else {
+ 	      $request->print("<p><span class=\"LC_error\">".
+                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
+                                   "$username:$domain",$result)."</span></p>");
+ 	   }
+ 	   $request->rflush();
+         }
+     }
+     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
+     if (@warnings) {
+         $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
+         $request->print(join(', ',@warnings));
      }
-     $request->print("<br />Stored $countdone students\n");
      if (@skipped) {
- 	$request->print('<p<font size="+1"><b>Skipped Students</b></font></p>');
+ 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
- 	foreach my $student (@skipped) { $request->print("$student<br />\n"); }
+         $request->print(join(', ',@skipped));
      }
      if (@notallowed) {
- 	$request->print('<p><font size="+1" color="red"><b>Students Not Allowed to Modify</b></font></p>');
+ 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
- 	foreach my $student (@notallowed) { $request->print("$student<br />\n"); }
+ 	$request->print(join(', ',@notallowed));
      }
      $request->print("<br />\n");
-     $request->print(&show_grading_menu_form($symb,$url));
+     return $error_msg;
-     return '';
  }
  #------------- end of section for handling csv file upload ---------
  #
  #-------------------------------------------------------------------
  #
- #-------------- Next few routines handles grading by page/sequence
+ #-------------- Next few routines handle grading by page/sequence
  #
  #--- Select a page/sequence and a student to grade
  sub pickStudentPage {
-     my ($request) = shift;
+     my ($request,$symb) = @_;
-     $request->print(<<LISTJAVASCRIPT);
+     my $alertmsg = &mt('Please select the student you wish to grade.');
- <script type="text/javascript" language="javascript">
+     &js_escape(\$alertmsg);
+     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
  function checkPickOne(formname) {
      if (radioSelection(formname.student) == null) {
- 	alert("Please select the student you wish to grade.");
+ 	alert("$alertmsg");
  	return;
      }
-     var ptr = pullDownSelection(formname.selectpage);
+     ptr = pullDownSelection(formname.selectpage);
-     formname.page.value = eval("formname.page"+ptr+".value");
+     formname.page.value = formname["page"+ptr].value;
-     formname.title.value = eval("formname.title"+ptr+".value");
+     formname.title.value = formname["title"+ptr].value;
      formname.submit();
  }
- </script>
  LISTJAVASCRIPT
      &commonJSfunctions($request);
-     my ($symb,$url) = &get_symb_and_url($request);
-     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
-     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
-     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
-     my $result='<h3><font color="#339933">&nbsp;'.
+     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
- 	'Manual Grading by Page or Sequence</font></h3>';
+     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
+     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
+     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
+     my $result='<h3><span class="LC_info">&nbsp;'.
+ 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
      $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
-     $result.='&nbsp;<b>Problems from:</b> <select name="selectpage">'."\n";
+     my $map_error;
-     my ($titles,$symbx) = &getSymbMap($request);
+     my ($titles,$symbx) = &getSymbMap($map_error);
-     my ($curpage,$type,$mapId) = ($symb =~ /(.*?\.(page|sequence))___(\d+)___/);
+     if ($map_error) {
+         $request->print(&navmap_errormsg());
+         return;
+     }
+     my ($curpage) =&Apache::lonnet::decode_symb($symb);
+ #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb);
+ #    my $type=($curpage =~ /\.(page|sequence)/);
+     # Collection of hidden fields
      my $ctr=0;
      foreach (@$titles) {
- 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+         my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
- 	$result.='<option value="'.$ctr.'" '.
+         $result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
- 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
+         $result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
- 	    '>'.$showtitle.'</option>'."\n";
+         $ctr++;
- 	$ctr++;
      }
-     $result.= '</select>'."<br>\n";
+     $result.='<input type="hidden" name="page" />'."\n".
+         '<input type="hidden" name="title" />'."\n";
+     $result.=&build_section_inputs();
+     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
+ 	'<input type="hidden" name="command" value="displayPage" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+     # Show grading options
+     $result.=&Apache::lonhtmlcommon::start_pick_box();
+     my $select = '<select name="selectpage">'."\n";
      $ctr=0;
      foreach (@$titles) {
  	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
- 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
+ 	$select.='<option value="'.$ctr.'"'.
- 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
+ 	    ($$symbx{$_} =~ /$curpage$/ ? ' selected="selected"' : '').
+ 	    '>'.$showtitle.'</option>'."\n";
  	$ctr++;
      }
-     $result.='<input type="hidden" name="page" />'."\n".
+     $select.= '</select>';
- 	'<input type="hidden" name="title" />'."\n";
-     $result.='&nbsp;<b>View Problems Text: </b><input type="radio" name="vProb" value="no" checked /> no '."\n".
- 	'<input type="radio" name="vProb" value="yes" /> yes '."<br>\n";
-     $result.='&nbsp;<b>Submission Details: </b>'.
+     $result.=
- 	'<input type="radio" name="lastSub" value="none" /> none'."\n".
+         &Apache::lonhtmlcommon::row_title(&mt('Problems from'))
- 	'<input type="radio" name="lastSub" value="datesub" checked /> dates and submissions'."\n".
+        .$select
- 	'<input type="radio" name="lastSub" value="all" /> all details'."\n";
+        .&Apache::lonhtmlcommon::row_closure();
-     $result.='<input type="hidden" name="section"     value="'.$getsec.'" />'."\n".
+     $result.=
- 	'<input type="hidden" name="Status"  value="'.$ENV{'form.Status'}.'" />'."\n".
+         &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
- 	'<input type="hidden" name="command" value="displayPage" />'."\n".
+        .'<label><input type="radio" name="vProb" value="no"'
- 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+            .' checked="checked" /> '.&mt('no').' </label>'."\n"
- 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+        .'<label><input type="radio" name="vProb" value="yes" />'
- 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."<br />\n";
+            .&mt('yes').'</label>'."\n"
+        .&Apache::lonhtmlcommon::row_closure();
-     $result.='&nbsp;<input type="button" '.
- 	'onClick="javascript:checkPickOne(this.form);"value="Submit" /><br />'."\n";
+     $result.=
+         &Apache::lonhtmlcommon::row_title(&mt('View Submissions'))
+        .'<label><input type="radio" name="lastSub" value="none" /> '
+            .&mt('none').' </label>'."\n"
+        .'<label><input type="radio" name="lastSub" value="datesub"'
+            .' checked="checked" /> '.&mt('all submissions').'</label>'."\n"
+        .'<label><input type="radio" name="lastSub" value="all" /> '
+            .&mt('all submissions with details').' </label>'
+        .&Apache::lonhtmlcommon::row_closure();
+     $result.=
+         &Apache::lonhtmlcommon::row_title(&mt('Use CODE'))
+        .'<input type="text" name="CODE" value="" />'
+        .&Apache::lonhtmlcommon::row_closure(1)
+        .&Apache::lonhtmlcommon::end_pick_box();
+     # Show list of students to select for grading
+     $result.='<br /><input type="button" '.
+              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
      $request->print($result);
-     my $studentTable.='&nbsp;<b>Select a student you wish to grade</b><br>'.
+     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
- 	'<table border="0"><tr><td bgcolor="#777777">'.
+ 	&Apache::loncommon::start_data_table().
- 	'<table border="0"><tr bgcolor="#e6ffff">'.
+ 	&Apache::loncommon::start_data_table_header_row().
- 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td>'.
+ 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
- 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td>'.
+ 	'<th>'.&nameUserString('header').'</th>'.
- 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td>'.
+ 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
- 	'<td><b>&nbsp;Fullname <font color="#999999">(username)</font></b></td></tr>';
+ 	'<th>'.&nameUserString('header').'</th>'.
+ 	&Apache::loncommon::end_data_table_header_row();
-     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
+     my (undef,undef,$fullname) = &getclasslist($getsec,'1',$getgroup);
      my $ptr = 1;
-     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
+     foreach my $student (sort
+ 			 {
+ 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+ 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+ 			     }
+ 			     return $a cmp $b;
+ 			 } (keys(%$fullname))) {
  	my ($uname,$udom) = split(/:/,$student);
- 	$studentTable.=($ptr%4 == 1 ? '<tr bgcolor="#ffffe6"><td>' : '</td><td>');
+ 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
- 	$studentTable.='<input type="radio" name="student" value="'.$student.'" /> '.$$fullname{$student}.
+                                   : '</td>');
- 	    '<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font>'."\n";
+ 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
- 	$studentTable.=($ptr%4 == 0 ? '</td></tr>' : '');
+ 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
+ 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
+ 	$studentTable.=
+ 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row()
+                          : '');
  	$ptr++;
      }
-     $studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;' if ($ptr%4 == 2);
+     if ($ptr%2 == 0) {
-     $studentTable.='</td><td>&nbsp;</td><td>&nbsp;' if ($ptr%4 == 3);
+ 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
-     $studentTable.='</td><td>&nbsp;' if ($ptr%4 == 0);
+ 	    &Apache::loncommon::end_data_table_row();
-     $studentTable.='</td></tr></table></td></tr></table>'."\n";
+     }
-     $studentTable.='<br />&nbsp;<input type="button" '.
+     $studentTable.=&Apache::loncommon::end_data_table()."\n";
- 	'onClick="javascript:checkPickOne(this.form);"value="Submit" /></form>'."\n";
+     $studentTable.='<input type="button" '.
+                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
-     $studentTable.=&show_grading_menu_form($symb,$url);
      $request->print($studentTable);
      return '';
  }
  sub getSymbMap {
-     my ($request) = @_;
+     my ($map_error) = @_;
-     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
+     my $navmap = Apache::lonnavmaps::navmap->new();
- 						  $ENV{'request.course.fn'}.'_parms.db');
+     unless (ref($navmap)) {
-     $navmap->init();
+         if (ref($map_error)) {
+             $$map_error = 'navmap';
+         }
+         return;
+     }
      my %symbx = ();
      my @titles = ();
      my $minder = 0;
      # Gather every sequence that has problems.
-     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); }, 1);
+     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
+,0,1);
      for my $sequence ($navmap->getById('0.0'), @sequences) {
- 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
+ 	if ($navmap->hasResource($sequence, sub { shift->is_gradable(); }, 0) ) {
- 	    my $title = $minder.'.'.$sequence->compTitle();
+ 	    my $title = $minder.'.'.
- 	    push @titles, $title; # minder in case two titles are identical
+ 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
- 	    $symbx{$title} = $sequence->symb();
+ 	    push(@titles, $title); # minder in case two titles are identical
+ 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
  	    $minder++;
  	}
      }
-     $navmap->untieHashes();
      return \@titles,\%symbx;
  }
  #
  #--- Displays a page/sequence w/wo problems, w/wo submissions
  sub displayPage {
-     my ($request) = shift;
+     my ($request,$symb) = @_;
+     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
-     my ($symb,$url) = &get_symb_and_url($request);
+     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
-     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
-     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $pageTitle = $env{'form.page'};
-     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
-     my $pageTitle = $ENV{'form.page'};
      my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
-     my ($uname,$udom) = split(/:/,$ENV{'form.student'});
+     my ($uname,$udom) = split(/:/,$env{'form.student'});
-     my $usec=$classlist->{$ENV{'form.student'}}[5];
+     my $usec=$classlist->{$env{'form.student'}}[5];
+     #need to make sure we have the correct data for later EXT calls,
+     #thus invalidate the cache
+     &Apache::lonnet::devalidatecourseresdata(
+                  $env{'course.'.$env{'request.course.id'}.'.num'},
+                  $env{'course.'.$env{'request.course.id'}.'.domain'});
+     &Apache::lonnet::clear_EXT_cache_status();
      if (!&canview($usec)) {
- 	$request->print('<font color="red">Unable to view requested student.('.$ENV{'form.student'}.')</font>');
+         $request->print(
- 	$request->print(&show_grading_menu_form($symb,$url));
+             '<span class="LC_warning">'.
- 	return;
+             &mt('Unable to view requested student. ([_1])',
+                     $env{'form.student'}).
+             '</span>');
+         return;
+     }
+     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
+     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
+ 	'</h3>'."\n";
+     $env{'form.CODE'} = uc($env{'form.CODE'});
+     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
+ 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
+     } else {
+ 	delete($env{'form.CODE'});
      }
-     my $result='<h3><font color="#339933">&nbsp;'.$ENV{'form.title'}.'</font></h3>';
-     $result.='<h3>&nbsp;Student: '.$$fullname{$ENV{'form.student'}}.
- 	'<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font></h3>'."\n";
      &sub_page_js($request);
      $request->print($result);
-     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
+     my $navmap = Apache::lonnavmaps::navmap->new();
- 						  $ENV{'request.course.fn'}.'_parms.db',1, 1);
+     unless (ref($navmap)) {
-     my ($mapUrl, $id, $resUrl) = split(/___/, $ENV{'form.page'});
+         $request->print(&navmap_errormsg());
+         return;
+     }
+     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
      my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+     if (!$map) {
+ 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
+ 	return;
+     }
      my $iterator = $navmap->getIterator($map->map_start(),
  					$map->map_finish());
      my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
  	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
- 	'<input type="hidden" name="student" value="'.$ENV{'form.student'}.'" />'."\n".
+ 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
+ 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
  	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
- 	'<input type="hidden" name="title"   value="'.$ENV{'form.title'}.'" />'."\n".
+ 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
- 	'<input type="hidden" name="url"     value="'.$url.'" />'."\n".
+ 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
- 	'<input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="overRideScore" value="no" />'."\n";
- 	'<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n";
+     if (defined($env{'form.CODE'})) {
+ 	$studentTable.=
+ 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
+     }
+     my $checkIcon = '<img alt="'.&mt('Check Mark').
+ 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
+     $studentTable.='&nbsp;<span class="LC_info">'.
+         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
+         '</span>'."\n".
+ 	&Apache::loncommon::start_data_table().
+ 	&Apache::loncommon::start_data_table_header_row().
+ 	'<th>'.&mt('Prob.').'</th>'.
+ 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
+ 	&Apache::loncommon::end_data_table_header_row();
-     my $checkIcon = '<img src="'.$request->dir_config('lonIconsURL').
+     &Apache::lonxml::clear_problem_counter();
- 	'/check.gif" height="16" border="0" />';
+     my ($depth,$question,$prob) = (1,1,1);
-     $studentTable.='&nbsp;<b>Note:</b> Problems graded correct by the computer are marked with a '.$checkIcon.
- 	' symbol.'."\n".
- 	'<table border="0"><tr><td bgcolor="#777777">'.
- 	'<table border="0"><tr bgcolor="#e6ffff">'.
- 	'<td align="center"><b>&nbsp;Prob.&nbsp;</b></td>'.
- 	'<td><b>&nbsp;'.($ENV{'form.vProb'} eq 'no' ? 'Title' : 'Problem Text').'/Grade</b></td></tr>';
-     my ($depth,$question) = (1,1);
      $iterator->next(); # skip the first BEGIN_MAP
      my $curRes = $iterator->next(); # for "current resource"
      while ($depth > 0) {
          if($curRes == $iterator->BEGIN_MAP) { $depth++; }
          if($curRes == $iterator->END_MAP) { $depth--; }
- #        if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout) {
+         if (ref($curRes) && $curRes->is_gradable()) {
-         if (ref($curRes) && $curRes->is_problem()) {
  	    my $parts = $curRes->parts();
              my $title = $curRes->compTitle();
  	    my $symbx = $curRes->symb();
- 	    $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$question.
+             my $is_tool = ($symbx =~ /ext\.tool$/);
- 		(scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
+ 	    $studentTable.=
+ 		&Apache::loncommon::start_data_table_row().
+ 		'<td align="center" valign="top" >'.$prob.
+ 		(scalar(@{$parts}) == 1 ? ''
+ 		                        : '<br />('.&mt('[_1]parts',
+ 							scalar(@{$parts}).'&nbsp;').')'
+ 		 ).
+ 		 '</td>';
  	    $studentTable.='<td valign="top">';
- 	    if ($ENV{'form.vProb'} eq 'yes') {
+ 	    my %form = ('CODE' => $env{'form.CODE'},);
- 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1);
+             if ($is_tool) {
- 	    } else {
+                 $studentTable.='&nbsp;<b>'.$title.'</b><br />';
- 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$ENV{'request.course.id'});
+             } else {
- 		$companswer =~ s|<form(.*?)>||g;
+ 	        if ($env{'form.vProb'} eq 'yes' ) {
- 		$companswer =~ s|</form>||g;
+ 		    $studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
- #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
+ 					         undef,'both',\%form);
- #		    $companswer =~ s/$1/ /ms;
+ 	        } else {
- #		    $request->print('match='.$1."<br>\n");
+ 		    my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
- #		}
+ 		    $companswer =~ s|<form(.*?)>||g;
- #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
+ 		    $companswer =~ s|</form>||g;
- 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br>&nbsp;<b>Correct answer:</b><br>'.$companswer;
+ #		    while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
+ #		        $companswer =~ s/$1/ /ms;
+ #		        $request->print('match='.$1."<br />\n");
+ #		    }
+ #		    $companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
+ 		    $studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
+ 		}
  	    }
- 	    my %record = &Apache::lonnet::restore($symbx,$ENV{'request.course.id'},$udom,$uname);
+ 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
- 	    if ($ENV{'form.lastSub'} eq 'datesub') {
+ 	    if ($env{'form.lastSub'} eq 'datesub') {
  		if ($record{'version'} eq '') {
- 		    $studentTable.='<br />&nbsp;<font color="red">No recorded submission for this problem</font><br />';
+                     my $msg = &mt('No recorded submission for this problem.');
+                     if ($is_tool) {
+                         $msg = &mt('No recorded transactions for this external tool');
+                     }
+ 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.$msg.'</span><br />';
  		} else {
  		    my %responseType = ();
  		    foreach my $partid (@{$parts}) {
- 			$responseType{$partid} = $curRes->responseType($partid);
+ 			my @responseIds =$curRes->responseIds($partid);
+ 			my @responseType =$curRes->responseType($partid);
+ 			my %responseIds;
+ 			for (my $i=0;$i<=$#responseIds;$i++) {
+ 			    $responseIds{$responseIds[$i]}=$responseType[$i];
+ 			}
+ 			$responseType{$partid} = \%responseIds;
  		    }
- 		    $studentTable.= &displaySubByDates(\%record,$parts,\%responseType,$checkIcon);
+ 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
  		}
- 	    } elsif ($ENV{'form.lastSub'} eq 'all') {
+ 	    } elsif ($env{'form.lastSub'} eq 'all') {
- 		my $last = ($ENV{'form.lastSub'} eq 'last' ? 'last' : '');
+ 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
+                 my $identifier = (&canmodify($usec)? $prob : '');
  		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
- 									$ENV{'request.course.id'},
+ 									$env{'request.course.id'},
- 									'','.submission');
+ 									'','.submission',undef,
+                                                                         $usec,$identifier);
  	    }
  	    if (&canmodify($usec)) {
+             $studentTable.=&gradeBox_start();
  		foreach my $partid (@{$parts}) {
  		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
  		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
  		    $question++;
  		}
+             $studentTable.=&gradeBox_end();
+ 		$prob++;
  	    }
  	    $studentTable.='</td></tr>';
- Line 2858  sub displayPage {
+ Line 5242  sub displayPage {
          $curRes = $iterator->next();
      }
-     $navmap->untieHashes();
+     $studentTable.=
+         '</table>'."\n".
-     $studentTable.='</td></tr></table></td></tr></table>'."\n".
+         '<input type="button" value="'.&mt('Save').'" '.
- 	'&nbsp;&nbsp;<input type="button" value="Save" '.
+         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
- 	'onClick="javascript:checkSubmitPage(this.form,'.$question.');" TARGET=_self />'.
+         '</form>'."\n";
- 	'</form>'."\n";
-     $studentTable.=&show_grading_menu_form($symb,$url);
      $request->print($studentTable);
      return '';
  }
  sub displaySubByDates {
-     my ($record,$parts,$responseType,$checkIcon) = @_;
+     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
-     my $studentTable='<table border="0" width="100%"><tr><td bgcolor="#777777">'.
+     my $isCODE=0;
- 	'<table border="0" width="100%"><tr bgcolor="#e6ffff">'.
+     my $isTask = ($symb =~/\.task$/);
- 	'<td><b>Date/Time</b></td>'.
+     my $is_tool = ($symb =~/\.tool$/);
- 	'<td><b>Submission</b></td>'.
+     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
- 	'<td><b>Status&nbsp;</b></td></tr>';
+     my $studentTable=&Apache::loncommon::start_data_table().
+ 	&Apache::loncommon::start_data_table_header_row().
+ 	'<th>'.&mt('Date/Time').'</th>'.
+ 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
+         ($isTask?'<th>'.&mt('Version').'</th>':'').
+ 	'<th>'.($is_tool?&mt('Grade'):&mt('Submission')).'</th>'.
+ 	'<th>'.&mt('Status').'</th>'.
+ 	&Apache::loncommon::end_data_table_header_row();
      my ($version);
      my %mark;
+     my %orders;
      $mark{'correct_by_student'} = $checkIcon;
+     if (!exists($$record{'1:timestamp'})) {
+         if ($is_tool) {
+             return '<br />&nbsp;<span class="LC_warning">'.&mt('No grade passed back.').'</span><br />';
+         } else {
+             return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
+         }
+     }
+     my $interaction;
+     my $no_increment = 1;
+     my (%lastrndseed,%lasttype);
      for ($version=1;$version<=$$record{'version'};$version++) {
- 	my $timestamp = scalar(localtime($$record{$version.':timestamp'}));
+ 	my $timestamp =
- 	$studentTable.='<tr bgcolor="#ffffff" valign="top"><td>'.$timestamp.'</td>';
+ 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
+ 	if (exists($$record{$version.':resource.0.version'})) {
+ 	    $interaction = $$record{$version.':resource.0.version'};
+ 	}
+         if ($isTask && $env{'form.previousversion'}) {
+             next unless ($interaction == $env{'form.previousversion'});
+         }
+ 	my $where = ($isTask ? "$version:resource.$interaction"
+ 		             : "$version:resource");
+ 	$studentTable.=&Apache::loncommon::start_data_table_row().
+ 	    '<td>'.$timestamp.'</td>';
+ 	if ($isCODE) {
+ 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
+ 	}
+         if ($isTask) {
+             $studentTable.='<td>'.$interaction.'</td>';
+         }
  	my @versionKeys = split(/\:/,$$record{$version.':keys'});
  	my @displaySub = ();
  	foreach my $partid (@{$parts}) {
- 	    my @matchKey = grep /^resource\.$partid\..*?\.submission$/,@versionKeys;
+             my ($hidden,$type);
- 	    next if ($$record{"$version:resource.$partid.solved"} eq '');
+             $type = $$record{$version.':resource.'.$partid.'.type'};
- 	    $displaySub[0].=(exists $$record{$version.':'.$matchKey[0]}) ?
+             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
- 		'<b>Part&nbsp;'.$partid.'&nbsp;'.
+                 $hidden = 1;
- 		($$record{"$version:resource.$partid.tries"} eq '' ? 'Trial&nbsp;not&nbsp;counted' :
+             }
- 		 'Trial&nbsp;'.$$record{"$version:resource.$partid.tries"}).'</b>&nbsp; '.
+             my @matchKey;
- 		 &cleanRecord($$record{$version.':'.$matchKey[0]},$$responseType{$partid}).'<br />' : '';
+             if ($isTask) {
- 	    $displaySub[1].=(exists $$record{"$version:resource.$partid.award"}) ?
+                 @matchKey = sort(grep(/^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys));
- 		'<b>Part&nbsp;'.$partid.'</b> &nbsp;'.
+             } elsif ($is_tool) {
- 		lc($$record{"$version:resource.$partid.award"}).' '.
+                 @matchKey = sort(grep(/^resource\.\Q$partid\E\.awarded$/,@versionKeys));
- 		$mark{$$record{"$version:resource.$partid.solved"}}.'<br />' : '';
+             } else {
- #	    $$record{"$version:resource.$partid.solved"}.'<br />' : '';
+                 @matchKey = sort(grep(/^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
- 	    $displaySub[2].=(exists $$record{"$version:resource.$partid.regrader"}) ?
+             }
- 		$$record{"$version:resource.$partid.regrader"}.' (<b>Part:</b> '.$partid.')' : '';
+ #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
- 	}
+ 	    my $display_part=&get_display_part($partid,$symb);
- 	$displaySub[2].=(exists $$record{"$version:resource.regrader"}) ?
+ 	    foreach my $matchKey (@matchKey) {
- 	    $$record{"$version:resource.regrader"} : '';
+ 		if (exists($$record{$version.':'.$matchKey}) &&
- 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1].
+ 		    $$record{$version.':'.$matchKey} ne '') {
- 	    ($displaySub[2] eq '' ? '' : 'Manually graded by '.$displaySub[2]).'&nbsp;</td></tr>';
+                     if ($is_tool) {
+                         $displaySub[0].=$$record{"$version:resource.$partid.awarded"};
+                     } else {
+ 		        my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
+ 				                   : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
+                         $displaySub[0].='<span class="LC_nobreak">';
+                         $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
+                                        .' <span class="LC_internal_info">'
+                                        .'('.&mt('Response ID: [_1]',$responseId).')'
+                                        .'</span>'
+                                        .' <b>';
+                         if ($hidden) {
+                             $displaySub[0].= &mt('Anonymous Survey').'</b>';
+                         } else {
+                             my ($trial,$rndseed,$newvariation);
+                             if ($type eq 'randomizetry') {
+                                 $trial = $$record{"$where.$partid.tries"};
+                                 $rndseed = $$record{"$where.$partid.rndseed"};
+                             }
+ 		            if ($$record{"$where.$partid.tries"} eq '') {
+ 			        $displaySub[0].=&mt('Trial not counted');
+ 		            } else {
+ 			        $displaySub[0].=&mt('Trial: [_1]',
+ 					        $$record{"$where.$partid.tries"});
+                                 if (($rndseed ne '') && ($lastrndseed{$partid} ne '')) {
+                                     if (($rndseed ne $lastrndseed{$partid}) &&
+                                         (($type eq 'randomizetry') || ($lasttype{$partid} eq 'randomizetry'))) {
+                                         $newvariation = '&nbsp;('.&mt('New variation this try').')';
+                                     }
+                                 }
+                                 $lastrndseed{$partid} = $rndseed;
+                                 $lasttype{$partid} = $type;
+ 		            }
+ 		            my $responseType=($isTask ? 'Task'
+                                               : $responseType->{$partid}->{$responseId});
+ 		            if (!exists($orders{$partid})) { $orders{$partid}={}; }
+ 		            if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
+ 			        $orders{$partid}->{$responseId}=
+ 			            &get_order($partid,$responseId,$symb,$uname,$udom,
+                                                $no_increment,$type,$trial,$rndseed);
+ 		            }
+ 		            $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
+ 		            $displaySub[0].='&nbsp; '.
+ 			        &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
+                         }
+                     }
+ 		}
+ 	    }
+ 	    if (exists($$record{"$where.$partid.checkedin"})) {
+ 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
+ 				    $$record{"$where.$partid.checkedin"},
+ 				    $$record{"$where.$partid.checkedin.slot"}).
+ 					'<br />';
+ 	    }
+ 	    if (exists $$record{"$where.$partid.award"}) {
+ 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
+ 		    lc($$record{"$where.$partid.award"}).' '.
+ 		    $mark{$$record{"$where.$partid.solved"}}.
+ 		    '<br />';
+ 	    } elsif (($is_tool) && (exists($$record{"$version:resource.$partid.solved"}))) {
+ 		if ($$record{"$version:resource.$partid.solved"} =~ /^(in|)correct_by_passback$/) {
+ 		    $displaySub[1].=&mt('Grade passed back by external tool');
+ 		}
+ 	    }
+ 	    if (exists $$record{"$where.$partid.regrader"}) {
+ 		$displaySub[2].=$$record{"$where.$partid.regrader"};
+ 		unless ($is_tool) {
+ 		    $displaySub[2].=' (<b>'.&mt('Part').':</b> '.$display_part.')';
+ 		}
+ 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
+ 		$displaySub[2].=
+ 		    $$record{"$version:resource.$partid.regrader"};
+                 unless ($is_tool) {
+ 		    $displaySub[2].=' (<b>'.&mt('Part').':</b> '.$display_part.')';
+                 }
+ 	    }
+ 	}
+ 	# needed because old essay regrader has not parts info
+ 	if (exists $$record{"$version:resource.regrader"}) {
+ 	    $displaySub[2].=$$record{"$version:resource.regrader"};
+ 	}
+ 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
+ 	if ($displaySub[2]) {
+ 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
+ 	}
+ 	$studentTable.='&nbsp;</td>'.
+ 	    &Apache::loncommon::end_data_table_row();
      }
-     $studentTable.='</table></td></tr></table>';
+     $studentTable.=&Apache::loncommon::end_data_table();
      return $studentTable;
  }
  sub updateGradeByPage {
-     my ($request) = shift;
+     my ($request,$symb) = @_;
-     my $cdom      = $ENV{"course.$ENV{'request.course.id'}.domain"};
+     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
-     my $cnum      = $ENV{"course.$ENV{'request.course.id'}.num"};
+     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
-     my $getsec    = $ENV{'form.section'} eq '' ? 'all' : $ENV{'form.section'};
+     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
-     my $pageTitle = $ENV{'form.page'};
+     my $pageTitle = $env{'form.page'};
      my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
-     my ($uname,$udom) = split(/:/,$ENV{'form.student'});
+     my ($uname,$udom) = split(/:/,$env{'form.student'});
-     my $usec=$classlist->{$ENV{'form.student'}}[5];
+     my $usec=$classlist->{$env{'form.student'}}[5];
      if (!&canmodify($usec)) {
- 	$request->print('<font color="red">Unable to modify requested student.('.$ENV{'form.student'}.'</font>');
+ 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
- 	$request->print(&show_grading_menu_form($ENV{'form.symb'},$ENV{'form.url'}));
  	return;
      }
-     my $result='<h3><font color="#339933">&nbsp;'.$ENV{'form.title'}.'</font></h3>';
+     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
-     $result.='<h3>&nbsp;Student: '.$$fullname{$ENV{'form.student'}}.
+     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
- 	'<font color="#999999"> ('.$uname.($udom eq $cdom ? '':':'.$udom).')</font></h3>'."\n";
+ 	'</h3>'."\n";
      $request->print($result);
-     my $navmap = Apache::lonnavmaps::navmap-> new($ENV{'request.course.fn'}.'.db',
- 						  $ENV{'request.course.fn'}.'_parms.db',1, 1);
-     my ($mapUrl, $id, $resUrl) = split(/___/, $ENV{'form.page'});
-     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $request->print(&navmap_errormsg());
+         return;
+     }
+     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
+     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
+     if (!$map) {
+ 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
+ 	return;
+     }
      my $iterator = $navmap->getIterator($map->map_start(),
  					$map->map_finish());
-     my $studentTable='<table border="0"><tr><td bgcolor="#777777">'.
+     my $studentTable=
- 	'<table border="0"><tr bgcolor="#e6ffff">'.
+ 	&Apache::loncommon::start_data_table().
- 	'<td align="center"><b>&nbsp;No&nbsp;</b></td>'.
+ 	&Apache::loncommon::start_data_table_header_row().
- 	'<td><b>&nbsp;Title&nbsp;</b></td>'.
+ 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
- 	'<td><b>&nbsp;Previous Score&nbsp;</b></td>'.
+ 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
- 	'<td><b>&nbsp;New Score&nbsp;</b></td></tr>';
+ 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
+ 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
+ 	&Apache::loncommon::end_data_table_header_row();
      $iterator->next(); # skip the first BEGIN_MAP
      my $curRes = $iterator->next(); # for "current resource"
-     my ($depth,$question,$changeflag)= (1,1,0);
+     my ($depth,$question,$prob,$changeflag,$hideflag)= (1,1,1,0,0);
      while ($depth > 0) {
          if($curRes == $iterator->BEGIN_MAP) { $depth++; }
          if($curRes == $iterator->END_MAP) { $depth--; }
-         if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout) {
+         if (ref($curRes) && $curRes->is_problem()) {
  	    my $parts = $curRes->parts();
              my $title = $curRes->compTitle();
  	    my $symbx = $curRes->symb();
- 	    $studentTable.='<tr bgcolor="#ffffe6"><td align="center" valign="top" >'.$question.
+ 	    $studentTable.=
- 		(scalar(@{$parts}) == 1 ? '' : '<br>('.scalar(@{$parts}).'&nbsp;parts)').'</td>';
+ 		&Apache::loncommon::start_data_table_row().
+ 		'<td align="center" valign="top" >'.$prob.
+ 		(scalar(@{$parts}) == 1 ? ''
+                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
+ 		.')').'</td>';
  	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
  	    my %newrecord=();
  	    my @displayPts=();
+             my %aggregate = ();
+             my $aggregateflag = 0;
+             if ($env{'form.HIDE'.$prob}) {
+                 my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
+                 my ($version,$parts) = split(/:/,$env{'form.HIDE'.$prob},2);
+                 my $numchgs = &makehidden($version,$parts,\%record,$symbx,$udom,$uname,1);
+                 $hideflag += $numchgs;
+             }
  	    foreach my $partid (@{$parts}) {
- 		my $newpts = $ENV{'form.GD_BOX'.$question.'_'.$partid};
+ 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
- 		my $oldpts = $ENV{'form.oldpts'.$question.'_'.$partid};
+ 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
- 		my $wgt = $ENV{'form.WGT'.$question.'_'.$partid} != 0 ?
+ 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ?
- 		    $ENV{'form.WGT'.$question.'_'.$partid} : 1;
+ 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
  		my $partial = $newpts/$wgt;
  		my $score;
  		if ($partial > 0) {
  		    $score = 'correct_by_override';
- 		} elsif ($partial == 0) {
+ 		} elsif ($newpts ne '') { #empty is taken as 0
  		    $score = 'incorrect_by_override';
  		}
- 		if ($ENV{'form.GD_SEL'.$question.'_'.$partid} eq 'excused') {
+ 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
+ 		if ($dropMenu eq 'excused') {
  		    $partial = '';
  		    $score = 'excused';
+ 		} elsif ($dropMenu eq 'reset status'
+ 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
+ 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
+ 		    $newrecord{'resource.'.$partid.'.solved'} = '';
+ 		    $newrecord{'resource.'.$partid.'.award'} = '';
+ 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
+ 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
+ 		    $changeflag++;
+ 		    $newpts = '';
+                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
+                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
+                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
+                     if ($aggtries > 0) {
+                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
+                         $aggregateflag = 1;
+                     }
  		}
- 		my $oldstatus = $ENV{'form.solved'.$question.'_'.$partid};
+ 		my $display_part=&get_display_part($partid,$curRes->symb());
- 		$displayPts[0].='&nbsp;<b>Part</b> '.$partid.' = '.
+ 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
+ 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
  		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
- 		    '&nbsp;<br>';
+ 		    '&nbsp;<br />';
- 		$displayPts[1].='&nbsp;<b>Part</b> '.$partid.' = '.
+ 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
- 		    ($oldstatus eq 'correct_by_student' ? $oldpts :
+ 		     (($score eq 'excused') ? 'excused' : $newpts).
- 		     (($score eq 'excused') ? 'excused' : $newpts)).
+ 		    '&nbsp;<br />';
- 		    '&nbsp;<br>';
  		$question++;
- 		if (($oldstatus eq 'correct_by_student') ||
+ 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
- 		    ($newpts eq $oldpts && $score eq $oldstatus))
- 		{
- 		    next;
- 		}
  		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
- 		$newrecord{'resource.'.$partid.'.solved'}   = $score;
+ 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
- 		$newrecord{'resource.'.$partid.'.regrader'}="$ENV{'user.name'}:$ENV{'user.domain'}";
+ 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
+ 		    if (scalar(keys(%newrecord)) > 0);
  		$changeflag++;
  	    }
  	    if (scalar(keys(%newrecord)) > 0) {
- 		&Apache::lonnet::cstore(\%newrecord,$symbx,$ENV{'request.course.id'},
+ 		my %record =
+ 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
+ 					     $udom,$uname);
+ 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
+ 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
+ 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
+ 		    $newrecord{'resource.CODE'} = '';
+ 		}
+ 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
  					$udom,$uname);
+ 		%record = &Apache::lonnet::restore($symbx,
+ 						   $env{'request.course.id'},
+ 						   $udom,$uname);
+ 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
+ 					     $cdom,$cnum,$udom,$uname);
  	    }
+             if ($aggregateflag) {
+                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
+                       $env{'course.'.$env{'request.course.id'}.'.domain'},
+                       $env{'course.'.$env{'request.course.id'}.'.num'});
+             }
  	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
  		'<td valign="top">'.$displayPts[1].'</td>'.
- 		'</tr>';
+ 		&Apache::loncommon::end_data_table_row();
+ 	    $prob++;
  	}
          $curRes = $iterator->next();
      }
-     $navmap->untieHashes();
+     $studentTable.=&Apache::loncommon::end_data_table();
+     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
-     $studentTable.='</td></tr></table></td></tr></table>';
+ 		  &mt('The scores were changed for [quant,_1,problem].',
-     $studentTable.=&show_grading_menu_form($ENV{'form.symb'},$ENV{'form.url'});
+ 		  $changeflag).'<br />');
-     my $grademsg=($changeflag == 0 ? 'No score was changed or updated.' :
+     my $hidemsg=($hideflag == 0 ? '' :
- 		  'The scores were changed for '.
+                  &mt('Submissions were marked "hidden" for [quant,_1,transaction].',
- 		  $changeflag.' problem'.($changeflag == 1 ? '.' : 's.'));
+                      $hideflag).'<br />');
-     $request->print($grademsg.$studentTable);
+     $request->print($hidemsg.$grademsg.$studentTable);
      return '';
  }
- Line 3029  sub updateGradeByPage {
+ Line 5589  sub updateGradeByPage {
  #
  #-------------------------------------------------------------------
- #--------------------Scantron Grading-----------------------------------
+ #-------------------- Bubblesheet (Scantron) Grading -------------------
  #
  #------ start of section for handling grading by page/sequence ---------
+ =pod
+ =head1 Bubble sheet grading routines
+   For this documentation:
+    'scanline' refers to the full line of characters
+    from the file that we are parsing that represents one entire sheet
+    'bubble line' refers to the data
+    representing the line of bubbles that are on the physical bubblesheet
+ The overall process is that a scanned in bubblesheet data is uploaded
+ into a course. When a user wants to grade, they select a
+ sequence/folder of resources, a file of bubblesheet info, and pick
+ one of the predefined configurations for what each scanline looks
+ like.
+ Next each scanline is checked for any errors of either 'missing
+ bubbles' (it's an error because it may have been mis-scanned
+ because too light bubbling), 'double bubble' (each bubble line should
+ have no more than one letter picked), invalid or duplicated CODE,
+ invalid student/employee ID
+ If the CODE option is used that determines the randomization of the
+ homework problems, either way the student/employee ID is looked up into a
+ username:domain.
+ During the validation phase the instructor can choose to skip scanlines.
+ After the validation phase, there are now 3 bubblesheet files
+   scantron_original_filename (unmodified original file)
+   scantron_corrected_filename (file where the corrected information has replaced the original information)
+   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
+ Also there is a separate hash nohist_scantrondata that contains extra
+ correction information that isn't representable in the bubblesheet
+ file (see &scantron_getfile() for more information)
+ After all scanlines are either valid, marked as valid or skipped, then
+ foreach line foreach problem in the picked sequence, an ssi request is
+ made that simulates a user submitting their selected letter(s) against
+ the homework problem.
+ =over 4
+ =item defaultFormData
+   Returns html hidden inputs used to hold context/default values.
+  Arguments:
+   $symb - $symb of the current resource
+ =cut
  sub defaultFormData {
-     my ($symb,$url)=@_;
+     my ($symb)=@_;
-     return '
+     return '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />';
-       <input type="hidden" name="symb"    value="'.$symb.'" />'."\n".
-      '<input type="hidden" name="url"     value="'.$url.'" />'."\n".
-      '<input type="hidden" name="saveState" value="'.$ENV{'form.saveState'}.'" />'."\n".
-      '<input type="hidden" name="probTitle" value="'.$ENV{'form.probTitle'}.'" />'."\n";
  }
+ =pod
+ =item getSequenceDropDown
+    Return html dropdown of possible sequences to grade
+  Arguments:
+    $symb - $symb of the current resource
+    $map_error - ref to scalar which will container error if
+                 $navmap object is unavailable in &getSymbMap().
+ =cut
  sub getSequenceDropDown {
-     my ($request,$symb)=@_;
+     my ($symb,$map_error)=@_;
      my $result='<select name="selectpage">'."\n";
-     my ($titles,$symbx) = &getSymbMap($request);
+     my ($titles,$symbx) = &getSymbMap($map_error);
-     my ($curpage,$type,$mapId) = ($symb =~ /(.*?\.(page|sequence))___(\d+)___/);
+     if (ref($map_error)) {
+         return if ($$map_error);
+     }
+     my ($curpage)=&Apache::lonnet::decode_symb($symb);
      my $ctr=0;
      foreach (@$titles) {
  	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
  	$result.='<option value="'.$$symbx{$_}.'" '.
- 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="on"' : '').
+ 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
  	    '>'.$showtitle.'</option>'."\n";
  	$ctr++;
      }
- Line 3059  sub getSequenceDropDown {
+ Line 5691  sub getSequenceDropDown {
      return $result;
  }
+ my %bubble_lines_per_response;     # no. bubble lines for each response.
+                                    # key is zero-based index - 0, 1, 2 ...
+ my %first_bubble_line;             # First bubble line no. for each bubble.
+ my %subdivided_bubble_lines;       # no. bubble lines for optionresponse,
+                                    # matchresponse or rankresponse, where
+                                    # an individual response can have multiple
+                                    # lines
+ my %responsetype_per_response;     # responsetype for each response
+ my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
+                                    # numbered response. Needed when randomorder
+                                    # or randompick are in use. Key is ID, value
+                                    # is response number.
+ # Save and restore the bubble lines array to the form env.
+ sub save_bubble_lines {
+     foreach my $line (keys(%bubble_lines_per_response)) {
+ 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
+ 	$env{"form.scantron.first_bubble_line.$line"} =
+ 	    $first_bubble_line{$line};
+         $env{"form.scantron.sub_bubblelines.$line"} =
+             $subdivided_bubble_lines{$line};
+         $env{"form.scantron.responsetype.$line"} =
+             $responsetype_per_response{$line};
+     }
+     foreach my $resid (keys(%masterseq_id_responsenum)) {
+         my $line = $masterseq_id_responsenum{$resid};
+         $env{"form.scantron.residpart.$line"} = $resid;
+     }
+ }
+ sub restore_bubble_lines {
+     my $line = 0;
+     %bubble_lines_per_response = ();
+     %masterseq_id_responsenum = ();
+     while ($env{"form.scantron.bubblelines.$line"}) {
+ 	my $value = $env{"form.scantron.bubblelines.$line"};
+ 	$bubble_lines_per_response{$line} = $value;
+ 	$first_bubble_line{$line}  =
+ 	    $env{"form.scantron.first_bubble_line.$line"};
+         $subdivided_bubble_lines{$line} =
+             $env{"form.scantron.sub_bubblelines.$line"};
+         $responsetype_per_response{$line} =
+             $env{"form.scantron.responsetype.$line"};
+         my $id = $env{"form.scantron.residpart.$line"};
+         $masterseq_id_responsenum{$id} = $line;
+ 	$line++;
+     }
+ }
+ =pod
+ =item scantron_filenames
+    Returns a list of the scantron files in the current course
+ =cut
+ sub scantron_filenames {
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $getpropath = 1;
+     my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
+                                                         $cname,$getpropath);
+     my @possiblenames;
+     if (ref($dirlist) eq 'ARRAY') {
+         foreach my $filename (sort(@{$dirlist})) {
+ 	    ($filename)=split(/&/,$filename);
+ 	    if ($filename!~/^scantron_orig_/) { next ; }
+ 	    $filename=~s/^scantron_orig_//;
+ 	    push(@possiblenames,$filename);
+         }
+     }
+     return @possiblenames;
+ }
+ =pod
+ =item scantron_uploads
+    Returns  html drop-down list of scantron files in current course.
+  Arguments:
+    $file2grade - filename to set as selected in the dropdown
+ =cut
  sub scantron_uploads {
-     if (!-e $Apache::lonnet::perlvar{'lonScansDir'}) { return ''};
+     my ($file2grade) = @_;
      my $result=	'<select name="scantron_selectfile">';
-     opendir(DIR,$Apache::lonnet::perlvar{'lonScansDir'});
+     $result.="<option></option>";
-     my @files=sort(readdir(DIR));
+     foreach my $filename (sort(&scantron_filenames())) {
-     foreach my $filename (@files) {
+ 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
- 	if ($filename eq '.' or $filename eq '..') { next; }
- 	$result.="<option>$filename</option>\n";
      }
-     closedir(DIR);
      $result.="</select>";
      return $result;
  }
+ =pod
+ =item scantron_scantab
+   Returns html drop down of the scantron formats in the scantronformat.tab
+   file.
+ =cut
  sub scantron_scantab {
-     my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
      my $result='<select name="scantron_format">'."\n";
-     foreach my $line (<$fh>) {
+     $result.='<option></option>'."\n";
- 	my ($name,$descrip)=split(/:/,$line);
+     my @lines = &Apache::lonnet::get_scantronformat_file();
- 	if ($name =~ /^\#/) { next; }
+     if (@lines > 0) {
- 	$result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
+         foreach my $line (@lines) {
+             next if (($line =~ /^\#/) || ($line eq ''));
+ 	    my ($name,$descrip)=split(/:/,$line);
+ 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
+         }
      }
      $result.='</select>'."\n";
+     return $result;
+ }
+ =pod
+ =item scantron_CODElist
+   Returns html drop down of the saved CODE lists from current course,
+   generated from earlier printings.
+ =cut
+ sub scantron_CODElist {
+     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
+     my $namechoice='<option></option>';
+     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
+ 	if ($name =~ /^error: 2 /) { next; }
+ 	if ($name =~ /^type\0/) { next; }
+ 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
+     }
+     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
+     return $namechoice;
+ }
+ =pod
+ =item scantron_CODEunique
+   Returns the html for "Each CODE to be used once" radio.
+ =cut
+ sub scantron_CODEunique {
+     my $result='<span class="LC_nobreak">
+                  <label><input type="radio" name="scantron_CODEunique"
+                         value="yes" checked="checked" />'.&mt('Yes').' </label>
+                 </span>
+                 <span class="LC_nobreak">
+                  <label><input type="radio" name="scantron_CODEunique"
+                         value="no" />'.&mt('No').' </label>
+                 </span>';
      return $result;
  }
+ =pod
+ =item scantron_selectphase
+   Generates the initial screen to start the bubblesheet process.
+   Allows for - starting a grading run.
+              - downloading existing scan data (original, corrected
+                                                 or skipped info)
+              - uploading new scan data
+  Arguments:
+   $r          - The Apache request object
+   $file2grade - name of the file that contain the scanned data to score
+ =cut
  sub scantron_selectphase {
-     my ($r) = @_;
+     my ($r,$file2grade,$symb) = @_;
-     my ($symb,$url)=&get_symb_and_url($r);
      if (!$symb) {return '';}
-     my $sequence_selector=&getSequenceDropDown($r,$symb);
+     my $map_error;
-     my $default_form_data=&defaultFormData($symb,$url);
+     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
-     my $grading_menu_button=&show_grading_menu_form($symb,$url);
+     if ($map_error) {
-     my $file_selector=&scantron_uploads();
+         $r->print('<br />'.&navmap_errormsg().'<br />');
+         return;
+     }
+     my $default_form_data=&defaultFormData($symb);
+     my $file_selector=&scantron_uploads($file2grade);
      my $format_selector=&scantron_scantab();
+     my $CODE_selector=&scantron_CODElist();
+     my $CODE_unique=&scantron_CODEunique();
      my $result;
-     $result.= <<SCANTRONFORM;
- <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantro_process">
+     $ssi_error = 0;
-   <input type="hidden" name="command" value="scantron_process" />
-   $default_form_data
+     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
-   <table width="100%" border="0">
+         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
-     <tr>
-       <td bgcolor="#777777">
+ 	# Chunk of form to prompt for a scantron file upload.
-         <table width="100%" border="0">
-           <tr bgcolor="#e6ffff">
+         $r->print('
-             <td>
+     <br />');
-               &nbsp;<b>Specify file location and which Folder/Sequence to grade</b>
+     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
-             </td>
+     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
-           </tr>
+     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
-           <tr bgcolor="#ffffe6">
+     &js_escape(\$alertmsg);
-             <td>
+     my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($cdom);
-                Sequence to grade: $sequence_selector
+     $r->print(&Apache::lonhtmlcommon::scripttag('
- 	    </td>
+     function checkUpload(formname) {
-           </tr>
+ 	if (formname.upfile.value == "") {
-           <tr bgcolor="#ffffe6">
+ 	    alert("'.$alertmsg.'");
+ 	    return false;
+ 	}
+ 	formname.submit();
+     }'."\n".$formatjs));
+     $r->print('
+               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
+                 '.$default_form_data.'
+                 <input name="courseid" type="hidden" value="'.$cnum.'" />
+                 <input name="domainid" type="hidden" value="'.$cdom.'" />
+                 <input name="command" value="scantronupload_save" type="hidden" />
+               '.&Apache::loncommon::start_data_table('LC_scantron_action').'
+               '.&Apache::loncommon::start_data_table_header_row().'
+                 <th>
+                 &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
+                 </th>
+               '.&Apache::loncommon::end_data_table_header_row().'
+               '.&Apache::loncommon::start_data_table_row().'
              <td>
- 		Filename of scoring office file: $file_selector
+                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'<br />'."\n");
- 	    </td>
+     if ($formatoptions) {
-           </tr>
+         $r->print('</td>
-           <tr bgcolor="#ffffe6">
+                  '.&Apache::loncommon::end_data_table_row().'
+                  '.&Apache::loncommon::start_data_table_row().'
+                  <td>'.$formattitle.('&nbsp;'x2).$formatoptions.'
+                  </td>
+                  '.&Apache::loncommon::end_data_table_row().'
+                  '.&Apache::loncommon::start_data_table_row().'
+                  <td>'
+         );
+     } else {
+         $r->print(' <br />');
+     }
+     $r->print('<input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
+               </td>
+              '.&Apache::loncommon::end_data_table_row().'
+              '.&Apache::loncommon::end_data_table().'
+              </form>'
+     );
+     }
+     # Chunk of form to prompt for a file to grade and how:
+     $result.= '
+     <br />
+     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
+     <input type="hidden" name="command" value="scantron_warning" />
+     '.$default_form_data.'
+     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
+        '.&Apache::loncommon::start_data_table_header_row().'
+             <th colspan="2">
+               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
+             </th>
+        '.&Apache::loncommon::end_data_table_header_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
+        '.&Apache::loncommon::end_data_table_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
+        '.&Apache::loncommon::end_data_table_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
+        '.&Apache::loncommon::end_data_table_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
+        '.&Apache::loncommon::end_data_table_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
+        '.&Apache::loncommon::end_data_table_row().'
+        '.&Apache::loncommon::start_data_table_row().'
+ 	    <td> '.&mt('Options:').' </td>
              <td>
-               Format of data file: $format_selector
+ 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
+                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
+                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
  	    </td>
-           </tr>
+        '.&Apache::loncommon::end_data_table_row().'
-         </table>
+        '.&Apache::loncommon::start_data_table_row().'
-       </td>
+             <td colspan="2">
-     </tr>
+               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
-   </table>
+             </td>
-   <input type="submit" value="Submit" />
+        '.&Apache::loncommon::end_data_table_row().'
- </form>
+     '.&Apache::loncommon::end_data_table().'
- $grading_menu_button
+     </form>
- SCANTRONFORM
+ ';
+     $r->print($result);
-     return $result;
+     # Chunk of the form that prompts to view a scoring office file,
- }
+     # corrected file, skipped records in a file.
- sub get_scantron_config {
+     $r->print('
-     my ($which) = @_;
+    <br />
-     my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
+    <form action="/adm/grades" name="scantron_download">
-     my %config;
+      '.$default_form_data.'
-     foreach my $line (<$fh>) {
+      <input type="hidden" name="command" value="scantron_download" />
- 	my ($name,$descrip)=split(/:/,$line);
+      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
- 	if ($name ne $which ) { next; }
+        '.&Apache::loncommon::start_data_table_header_row().'
- 	chomp($line);
+               <th>
- 	my @config=split(/:/,$line);
+                 &nbsp;'.&mt('Download a scoring office file').'
- 	$config{'name'}=$config[0];
+               </th>
- 	$config{'description'}=$config[1];
+        '.&Apache::loncommon::end_data_table_header_row().'
- 	$config{'CODElocation'}=$config[2];
+        '.&Apache::loncommon::start_data_table_row().'
- 	$config{'CODEstart'}=$config[3];
+               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).'
- 	$config{'CODElength'}=$config[4];
+                 <br />
- 	$config{'IDstart'}=$config[5];
+                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
- 	$config{'IDlength'}=$config[6];
+        '.&Apache::loncommon::end_data_table_row().'
- 	$config{'Qstart'}=$config[7];
+      '.&Apache::loncommon::end_data_table().'
- 	$config{'Qlength'}=$config[8];
+    </form>
- 	$config{'Qoff'}=$config[9];
+    <br />
- 	$config{'Qon'}=$config[10];
+ ');
- 	last;
-     }
+     &Apache::lonpickcode::code_list($r,2);
-     return %config;
+     $r->print('<br /><form method="post" name="checkscantron" action="">'.
+              $default_form_data."\n".
+              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
+              &Apache::loncommon::start_data_table_header_row()."\n".
+              '<th colspan="2">
+               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
+              '</th>'."\n".
+               &Apache::loncommon::end_data_table_header_row()."\n".
+               &Apache::loncommon::start_data_table_row()."\n".
+               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
+               '<td> '.$sequence_selector.' </td>'.
+               &Apache::loncommon::end_data_table_row()."\n".
+               &Apache::loncommon::start_data_table_row()."\n".
+               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
+               '<td> '.$file_selector.' </td>'."\n".
+               &Apache::loncommon::end_data_table_row()."\n".
+               &Apache::loncommon::start_data_table_row()."\n".
+               '<td> '.&mt('Format of data file:').' </td>'."\n".
+               '<td> '.$format_selector.' </td>'."\n".
+               &Apache::loncommon::end_data_table_row()."\n".
+               &Apache::loncommon::start_data_table_row()."\n".
+               '<td> '.&mt('Options').' </td>'."\n".
+               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
+               &Apache::loncommon::end_data_table_row()."\n".
+               &Apache::loncommon::start_data_table_row()."\n".
+               '<td colspan="2">'."\n".
+               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
+               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
+               '</td>'."\n".
+               &Apache::loncommon::end_data_table_row()."\n".
+               &Apache::loncommon::end_data_table()."\n".
+               '</form><br />');
+     return;
  }
+ =pod
+ =item username_to_idmap
+     creates a hash keyed by student/employee ID with values of the corresponding
+     student username:domain. If a single ID occurs for more than one student,
+     the status of the student is checked, and if Active, the value in the hash
+     will be set to the Active student.
+   Arguments:
+     $classlist - reference to the class list hash. This is a hash
+                  keyed by student name:domain  whose elements are references
+                  to arrays containing various chunks of information
+                  about the student. (See loncoursedata for more info).
+   Returns
+     %idmap - the constructed hash
+ =cut
  sub username_to_idmap {
      my ($classlist)= @_;
      my %idmap;
      foreach my $student (keys(%$classlist)) {
- 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
+         my $id = $classlist->{$student}->[&Apache::loncoursedata::CL_ID];
- 	    $student;
+         unless ($id eq '') {
+             if (!exists($idmap{$id})) {
+                 $idmap{$id} = $student;
+             } else {
+                 my $status = $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS];
+                 if ($status eq 'Active') {
+                     $idmap{$id} = $student;
+                 }
+             }
+         }
      }
      return %idmap;
  }
+ =pod
+ =item scantron_fixup_scanline
+    Process a requested correction to a scanline.
+   Arguments:
+     $scantron_config   - hash from &Apache::lonnet::get_scantron_config()
+     $scan_data         - hash of correction information
+                           (see &scantron_getfile())
+     $line              - existing scanline
+     $whichline         - line number of the passed in scanline
+     $field             - type of change to process
+                          (either
+                           'ID'     -> correct the student/employee ID
+                           'CODE'   -> correct the CODE
+                           'answer' -> fixup the submitted answers)
+    $args               - hash of additional info,
+                           - 'ID'
+                                'newid' -> studentID to use in replacement
+                                           of existing one
+                           - 'CODE'
+                                'CODE_ignore_dup' - set to true if duplicates
+                                                    should be ignored.
+ 	                       'CODE' - is new code or 'use_unfound'
+                                         if the existing unfound code should
+                                         be used as is
+                           - 'answer'
+                                'response' - new answer or 'none' if blank
+                                'question' - the bubble line to change
+                                'questionnum' - the question identifier,
+                                                may include subquestion.
+   Returns:
+     $line - the modified scanline
+   Side effects:
+     $scan_data - may be updated
+ =cut
+ sub scantron_fixup_scanline {
+     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
+     if ($field eq 'ID') {
+ 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
+ 	    return ($line,1,'New value too large');
+ 	}
+ 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
+ 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
+ 				     $args->{'newid'});
+ 	}
+ 	substr($line,$$scantron_config{'IDstart'}-1,
+ 	       $$scantron_config{'IDlength'})=$args->{'newid'};
+ 	if ($args->{'newid'}=~/^\s*$/) {
+ 	    &scan_data($scan_data,"$whichline.user",
+ 		       $args->{'username'}.':'.$args->{'domain'});
+ 	}
+     } elsif ($field eq 'CODE') {
+ 	if ($args->{'CODE_ignore_dup'}) {
+ 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
+ 	}
+ 	&scan_data($scan_data,"$whichline.useCODE",'1');
+ 	if ($args->{'CODE'} ne 'use_unfound') {
+ 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
+ 		return ($line,1,'New CODE value too large');
+ 	    }
+ 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
+ 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
+ 	    }
+ 	    substr($line,$$scantron_config{'CODEstart'}-1,
+ 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
+ 	}
+     } elsif ($field eq 'answer') {
+ 	my $length=$scantron_config->{'Qlength'};
+ 	my $off=$scantron_config->{'Qoff'};
+ 	my $on=$scantron_config->{'Qon'};
+ 	my $answer=${off}x$length;
+ 	if ($args->{'response'} eq 'none') {
+ 	    &scan_data($scan_data,
+ 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
+ 	} else {
+ 	    if ($on eq 'letter') {
+ 		my @alphabet=('A'..'Z');
+ 		$answer=$alphabet[$args->{'response'}];
+ 	    } elsif ($on eq 'number') {
+ 		$answer=$args->{'response'}+1;
+ 		if ($answer == 10) { $answer = '0'; }
+ 	    } else {
+ 		substr($answer,$args->{'response'},1)=$on;
+ 	    }
+ 	    &scan_data($scan_data,
+ 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
+ 	}
+ 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
+ 	substr($line,$where-1,$length)=$answer;
+     }
+     return $line;
+ }
+ =pod
+ =item scan_data
+     Edit or look up  an item in the scan_data hash.
+   Arguments:
+     $scan_data  - The hash (see scantron_getfile)
+     $key        - shorthand of the key to edit (actual key is
+                   scantronfilename_key).
+     $data        - New value of the hash entry.
+     $delete      - If true, the entry is removed from the hash.
+   Returns:
+     The new value of the hash table field (undefined if deleted).
+ =cut
+ sub scan_data {
+     my ($scan_data,$key,$value,$delete)=@_;
+     my $filename=$env{'form.scantron_selectfile'};
+     if (defined($value)) {
+ 	$scan_data->{$filename.'_'.$key} = $value;
+     }
+     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
+     return $scan_data->{$filename.'_'.$key};
+ }
+ # ----- These first few routines are general use routines.----
+ # Return the number of occurences of a pattern in a string.
+ sub occurence_count {
+     my ($string, $pattern) = @_;
+     my @matches = ($string =~ /$pattern/g);
+     return scalar(@matches);
+ }
+ # Take a string known to have digits and convert all the
+ # digits into letters in the range J,A..I.
+ sub digits_to_letters {
+     my ($input) = @_;
+     my @alphabet = ('J', 'A'..'I');
+     my @input    = split(//, $input);
+     my $output ='';
+     for (my $i = 0; $i < scalar(@input); $i++) {
+ 	if ($input[$i] =~ /\d/) {
+ 	    $output .= $alphabet[$input[$i]];
+ 	} else {
+ 	    $output .= $input[$i];
+ 	}
+     }
+     return $output;
+ }
+ =pod
+ =item scantron_parse_scanline
+   Decodes a scanline from the selected bubblesheet file
+  Arguments:
+     line             - The text of the bubblesheet file line to process
+     whichline        - Line number
+     scantron_config  - Hash describing the format of the bubblesheet lines.
+     scan_data        - Hash of extra information about the scanline
+                        (see scantron_getfile for more information)
+     just_header      - True if should not process question answers but only
+                        the stuff to the left of the answers.
+     randomorder      - True if randomorder in use
+     randompick       - True if randompick in use
+     sequence         - Exam folder URL
+     master_seq       - Ref to array containing symbs in exam folder
+     symb_to_resource - Ref to hash of symbs for resources in exam folder
+                        (corresponding values are resource objects)
+     partids_by_symb  - Ref to hash of symb -> array ref of partIDs
+     orderedforcode   - Ref to hash of arrays. keys are CODEs and values
+                        are refs to an array of resource objects, ordered
+                        according to order used for CODE, when randomorder
+                        and or randompick are in use.
+     respnumlookup    - Ref to hash mapping question numbers in bubble lines
+                        for current line to question number used for same question
+                         in "Master Sequence" (as seen by Course Coordinator).
+     startline        - Ref to hash where key is question number (0 is first)
+                        and value is number of first bubble line for current
+                        student or code-based randompick and/or randomorder.
+     totalref         - Ref of scalar used to score total number of bubble
+                        lines needed for responses in a scan line (used when
+                        randompick in use.
+  Returns:
+    Hash containing the result of parsing the scanline
+    Keys are all proceeded by the string 'scantron.'
+        CODE    - the CODE in use for this scanline
+        useCODE - 1 if the CODE is invalid but it usage has been forced
+                  by the operator
+        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
+                             CODEs were selected, but the usage has been
+                             forced by the operator
+        ID  - student/employee ID
+        PaperID - if used, the ID number printed on the sheet when the
+                  paper was scanned
+        FirstName - first name from the sheet
+        LastName  - last name from the sheet
+      if just_header was not true these key may also exist
+        missingerror - a list of bubble ranges that are considered to be answers
+                       to a single question that don't have any bubbles filled in.
+                       Of the form questionnumber:firstbubblenumber:count.
+        doubleerror  - a list of bubble ranges that are considered to be answers
+                       to a single question that have more than one bubble filled in.
+                       Of the form questionnumber::firstbubblenumber:count
+                 In the above, count is the number of bubble responses in the
+                 input line needed to represent the possible answers to the question.
+                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
+                 per line would have count = 2.
+        maxquest     - the number of the last bubble line that was parsed
+        (<number> starts at 1)
+        <number>.answer - zero or more letters representing the selected
+                          letters from the scanline for the bubble line
+                          <number>.
+                          if blank there was either no bubble or there where
+                          multiple bubbles, (consult the keys missingerror and
+                          doubleerror if this is an error condition)
+ =cut
  sub scantron_parse_scanline {
-     my ($line,$scantron_config)=@_;
+     my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
+         $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
+         $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
      my %record;
-     my $questions=substr($line,$$scantron_config{'Qstart'}-1);
+     my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
-     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);
+     if (!($$scantron_config{'CODElocation'} eq 0 ||
-     if ($$scantron_config{'CODElocation'} ne 0) {
+ 	  $$scantron_config{'CODElocation'} eq 'none')) {
- 	if ($$scantron_config{'CODElocation'} < 0) {
+ 	if ($$scantron_config{'CODElocation'} < 0 ||
- 	    $record{'scantron.CODE'}=substr($data,$$scantron_config{'CODEstart'}-1,
+ 	    $$scantron_config{'CODElocation'} eq 'letter' ||
+ 	    $$scantron_config{'CODElocation'} eq 'number') {
+ 	    $record{'scantron.CODE'}=substr($data,
+ 					    $$scantron_config{'CODEstart'}-1,
  					    $$scantron_config{'CODElength'});
+ 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
+ 		$record{'scantron.useCODE'}=1;
+ 	    }
+ 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
+ 		$record{'scantron.CODE_ignore_dup'}=1;
+ 	    }
  	} else {
  	    #FIXME interpret first N questions
  	}
      }
      $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
  				  $$scantron_config{'IDlength'});
+     $record{'scantron.PaperID'}=
+ 	substr($data,$$scantron_config{'PaperID'}-1,
+ 	       $$scantron_config{'PaperIDlength'});
+     $record{'scantron.FirstName'}=
+ 	substr($data,$$scantron_config{'FirstName'}-1,
+ 	       $$scantron_config{'FirstNamelength'});
+     $record{'scantron.LastName'}=
+ 	substr($data,$$scantron_config{'LastName'}-1,
+ 	       $$scantron_config{'LastNamelength'});
+     if ($just_header) { return \%record; }
      my @alphabet=('A'..'Z');
      my $questnum=0;
-     while ($questions) {
+     my $ansnum  =1;		# Multiple 'answer lines'/question.
- 	$questnum++;
- 	my $currentquest=substr($questions,0,$$scantron_config{'Qlength'});
+     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
- 	substr($questions,0,$$scantron_config{'Qlength'})='';
+     if ($randompick || $randomorder) {
- 	if (length($currentquest) < $$scantron_config{'Qlength'}) { next; }
+         my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
- 	my (@array)=split(/$$scantron_config{'Qon'}/,$currentquest);
+                                          $master_seq,$symb_to_resource,
- 	if (scalar(@array) gt 2) {
+                                          $partids_by_symb,$orderedforcode,
- 	    #FIXME do something intelligent with double bubbles
+                                          $respnumlookup,$startline);
- 	    Apache->request->print("<br ><b>Wha!!!</b> <pre>".scalar(@array).
+         if ($total) {
- 				   '-'.$currentquest.'-'.$questnum.'</pre><br />');
+             $lastpos = $total*$$scantron_config{'Qlength'};
- 	}
+         }
- 	if (length($array[0]) eq $$scantron_config{'Qlength'}) {
+         if (ref($totalref)) {
- 	    $record{"scantron.$questnum.answer"}='';
+             $$totalref = $total;
- 	} else {
+         }
- 	    $record{"scantron.$questnum.answer"}=$alphabet[length($array[0])];
+     }
- 	}
+     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
+     chomp($questions);		# Get rid of any trailing \n.
+     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
+     while (length($questions)) {
+         my $answers_needed;
+         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+             $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
+         } else {
+ 	    $answers_needed = $bubble_lines_per_response{$questnum};
+         }
+         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
+                              || 1;
+         $questnum++;
+         my $quest_id = $questnum;
+         my $currentquest = substr($questions,0,$answer_length);
+         $questions       = substr($questions,$answer_length);
+         if (length($currentquest) < $answer_length) { next; }
+         my $subdivided;
+         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+             $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
+         } else {
+             $subdivided = $subdivided_bubble_lines{$questnum-1};
+         }
+         if ($subdivided =~ /,/) {
+             my $subquestnum = 1;
+             my $subquestions = $currentquest;
+             my @subanswers_needed = split(/,/,$subdivided);
+             foreach my $subans (@subanswers_needed) {
+                 my $subans_length =
+                     ($$scantron_config{'Qlength'} * $subans)  || 1;
+                 my $currsubquest = substr($subquestions,0,$subans_length);
+                 $subquestions   = substr($subquestions,$subans_length);
+                 $quest_id = "$questnum.$subquestnum";
+                 if (($$scantron_config{'Qon'} eq 'letter') ||
+                     ($$scantron_config{'Qon'} eq 'number')) {
+                     $ansnum = &scantron_validator_lettnum($ansnum,
+                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
+                         \@alphabet,\%record,$scantron_config,$scan_data,
+                         $randomorder,$randompick,$respnumlookup);
+                 } else {
+                     $ansnum = &scantron_validator_positional($ansnum,
+                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
+                         \@alphabet,\%record,$scantron_config,$scan_data,
+                         $randomorder,$randompick,$respnumlookup);
+                 }
+                 $subquestnum ++;
+             }
+         } else {
+             if (($$scantron_config{'Qon'} eq 'letter') ||
+                 ($$scantron_config{'Qon'} eq 'number')) {
+                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
+                     $quest_id,$answers_needed,$currentquest,$whichline,
+                     \@alphabet,\%record,$scantron_config,$scan_data,
+                     $randomorder,$randompick,$respnumlookup);
+             } else {
+                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
+                     $quest_id,$answers_needed,$currentquest,$whichline,
+                     \@alphabet,\%record,$scantron_config,$scan_data,
+                     $randomorder,$randompick,$respnumlookup);
+             }
+         }
      }
      $record{'scantron.maxquest'}=$questnum;
      return \%record;
  }
+ sub get_master_seq {
+     my ($resources,$master_seq,$symb_to_resource) = @_;
+     return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
+                    (ref($symb_to_resource) eq 'HASH'));
+     my $resource_error;
+     foreach my $resource (@{$resources}) {
+         my $ressymb;
+         if (ref($resource)) {
+             $ressymb = $resource->symb();
+             push(@{$master_seq},$ressymb);
+             $symb_to_resource->{$ressymb} = $resource;
+         } else {
+             $resource_error = 1;
+             last;
+         }
+     }
+     return $resource_error;
+ }
+ sub get_respnum_lookups {
+     my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
+         $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
+     return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
+                    (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
+                    (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
+                    (ref($startline) eq 'HASH'));
+     my ($user,$scancode);
+     if ((exists($record->{'scantron.CODE'})) &&
+         (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
+         $scancode = $record->{'scantron.CODE'};
+     } else {
+         $user = &scantron_find_student($record,$scan_data,$idmap,$line);
+     }
+     my @mapresources =
+         &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
+                      $orderedforcode);
+     my $total = 0;
+     my $count = 0;
+     foreach my $resource (@mapresources) {
+         my $id = $resource->id();
+         my $symb = $resource->symb();
+         if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
+             foreach my $partid (@{$partids_by_symb->{$symb}}) {
+                 my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
+                 if ($respnum ne '') {
+                     $respnumlookup->{$count} = $respnum;
+                     $startline->{$count} = $total;
+                     $total += $bubble_lines_per_response{$respnum};
+                     $count ++;
+                 }
+             }
+         }
+     }
+     return $total;
+ }
+ sub scantron_validator_lettnum {
+     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
+         $alphabet,$record,$scantron_config,$scan_data,$randomorder,
+         $randompick,$respnumlookup) = @_;
+     # Qon 'letter' implies for each slot in currquest we have:
+     #    ? or * for doubles, a letter in A-Z for a bubble, and
+     #    about anything else (esp. a value of Qoff) for missing
+     #    bubbles.
+     #
+     # Qon 'number' implies each slot gives a digit that indexes the
+     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
+     #    and * or ? for double bubbles on a single line.
+     #
+     my $matchon;
+     if ($$scantron_config{'Qon'} eq 'letter') {
+         $matchon = '[A-Z]';
+     } elsif ($$scantron_config{'Qon'} eq 'number') {
+         $matchon = '\d';
+     }
+     my $occurrences = 0;
+     my $responsenum = $questnum-1;
+     if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+        $responsenum = $respnumlookup->{$questnum-1}
+     }
+     if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+         ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+         ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+         ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+         ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+         ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
+         my @singlelines = split('',$currquest);
+         foreach my $entry (@singlelines) {
+             $occurrences = &occurence_count($entry,$matchon);
+             if ($occurrences > 1) {
+                 last;
+             }
+         }
+     } else {
+         $occurrences = &occurence_count($currquest,$matchon);
+     }
+     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
+         push(@{$record->{'scantron.doubleerror'}},$quest_id);
+         for (my $ans=0; $ans<$answers_needed; $ans++) {
+             my $bubble = substr($currquest,$ans,1);
+             if ($bubble =~ /$matchon/ ) {
+                 if ($$scantron_config{'Qon'} eq 'number') {
+                     if ($bubble == 0) {
+                         $bubble = 10;
+                     }
+                     $record->{"scantron.$ansnum.answer"} =
+                         $alphabet->[$bubble-1];
+                 } else {
+                     $record->{"scantron.$ansnum.answer"} = $bubble;
+                 }
+             } else {
+                 $record->{"scantron.$ansnum.answer"}='';
+             }
+             $ansnum++;
+         }
+     } elsif (!defined($currquest)
+             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
+             || (&occurence_count($currquest,$matchon) == 0)) {
+         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
+             $record->{"scantron.$ansnum.answer"}='';
+             $ansnum++;
+         }
+         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
+             push(@{$record->{'scantron.missingerror'}},$quest_id);
+         }
+     } else {
+         if ($$scantron_config{'Qon'} eq 'number') {
+             $currquest = &digits_to_letters($currquest);
+         }
+         for (my $ans=0; $ans<$answers_needed; $ans++) {
+             my $bubble = substr($currquest,$ans,1);
+             $record->{"scantron.$ansnum.answer"} = $bubble;
+             $ansnum++;
+         }
+     }
+     return $ansnum;
+ }
+ sub scantron_validator_positional {
+     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
+         $whichline,$alphabet,$record,$scantron_config,$scan_data,
+         $randomorder,$randompick,$respnumlookup) = @_;
+     # Otherwise there's a positional notation;
+     # each bubble line requires Qlength items, and there are filled in
+     # bubbles for each case where there 'Qon' characters.
+     #
+     my @array=split($$scantron_config{'Qon'},$currquest,-1);
+     # If the split only gives us one element.. the full length of the
+     # answer string, no bubbles are filled in:
+     if ($answers_needed eq '') {
+         return;
+     }
+     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
+         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
+             $record->{"scantron.$ansnum.answer"}='';
+             $ansnum++;
+         }
+         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
+             push(@{$record->{"scantron.missingerror"}},$quest_id);
+         }
+     } elsif (scalar(@array) == 2) {
+         my $location = length($array[0]);
+         my $line_num = int($location / $$scantron_config{'Qlength'});
+         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
+         for (my $ans=0; $ans<$answers_needed; $ans++) {
+             if ($ans eq $line_num) {
+                 $record->{"scantron.$ansnum.answer"} = $bubble;
+             } else {
+                 $record->{"scantron.$ansnum.answer"} = ' ';
+             }
+             $ansnum++;
+          }
+     } else {
+         #  If there's more than one instance of a bubble character
+         #  That's a double bubble; with positional notation we can
+         #  record all the bubbles filled in as well as the
+         #  fact this response consists of multiple bubbles.
+         #
+         my $responsenum = $questnum-1;
+         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+             $responsenum = $respnumlookup->{$questnum-1}
+         }
+         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
+             my $doubleerror = 0;
+             while (($currquest >= $$scantron_config{'Qlength'}) &&
+                    (!$doubleerror)) {
+                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
+                $currquest = substr($currquest,$$scantron_config{'Qlength'});
+                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
+                if (length(@currarray) > 2) {
+                    $doubleerror = 1;
+                }
+             }
+             if ($doubleerror) {
+                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
+             }
+         } else {
+             push(@{$record->{'scantron.doubleerror'}},$quest_id);
+         }
+         my $item = $ansnum;
+         for (my $ans=0; $ans<$answers_needed; $ans++) {
+             $record->{"scantron.$item.answer"} = '';
+             $item ++;
+         }
+         my @ans=@array;
+         my $i=0;
+         my $increment = 0;
+         while ($#ans) {
+             $i+=length($ans[0]) + $increment;
+             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
+             my $bubble = $i%$$scantron_config{'Qlength'};
+             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
+             shift(@ans);
+             $increment = 1;
+         }
+         $ansnum += $answers_needed;
+     }
+     return $ansnum;
+ }
+ =pod
+ =item scantron_add_delay
+    Adds an error message that occurred during the grading phase to a
+    queue of messages to be shown after grading pass is complete
+  Arguments:
+    $delayqueue  - arrary ref of hash ref of error messages
+    $scanline    - the scanline that caused the error
+    $errormesage - the error message
+    $errorcode   - a numeric code for the error
+  Side Effects:
+    updates the $delayqueue to have a new hash ref of the error
+ =cut
  sub scantron_add_delay {
+     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
+     push(@$delayqueue,
+ 	 {'line' => $scanline, 'emsg' => $errormessage,
+ 	  'ecode' => $errorcode }
+ 	 );
  }
+ =pod
+ =item scantron_find_student
+    Finds the username for the current scanline
+   Arguments:
+    $scantron_record - hash result from scantron_parse_scanline
+    $scan_data       - hash of correction information
+                       (see &scantron_getfile() form more information)
+    $idmap           - hash from &username_to_idmap()
+    $line            - number of current scanline
+   Returns:
+    Either 'username:domain' or undef if unknown
+ =cut
  sub scantron_find_student {
-     my ($scantron_record,$idmap)=@_;
+     my ($scantron_record,$scan_data,$idmap,$line)=@_;
      my $scanID=$$scantron_record{'scantron.ID'};
+     if ($scanID =~ /^\s*$/) {
+  	return &scan_data($scan_data,"$line.user");
+     }
      foreach my $id (keys(%$idmap)) {
- 	Apache->request->print('<pre>checking studnet -'.$id.'- againt -'.$scanID.'- </pre>');
+  	if (lc($id) eq lc($scanID)) {
- 	if (lc($id) eq lc($scanID)) { Apache->request->print('success');return $$idmap{$id}; }
+  	    return $$idmap{$id};
+  	}
      }
      return undef;
  }
+ =pod
+ =item scantron_filter
+    Filter sub for lonnavmaps, filters out hidden resources if ignore
+    hidden resources was selected
+ =cut
  sub scantron_filter {
      my ($curres)=@_;
-     if (ref($curres) && $curres->is_problem() && !$curres->randomout) {
+     if (ref($curres) && $curres->is_problem()) {
+ 	# if the user has asked to not have either hidden
+ 	# or 'randomout' controlled resources to be graded
+ 	# don't include them
+ 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
+ 	    && $curres->randomout) {
+ 	    return 0;
+ 	}
  	return 1;
      }
      return 0;
  }
- sub scantron_process_students {
+ =pod
+ =item scantron_process_corrections
+    Gets correction information out of submitted form data and corrects
+    the scanline
+ =cut
+ sub scantron_process_corrections {
      my ($r) = @_;
-     my (undef,undef,$sequence)=split(/___/,$ENV{'form.selectpage'});
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
-     my ($symb,$url)=&get_symb_and_url($r);
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my $which=$env{'form.scantron_line'};
+     my $line=&scantron_get_line($scanlines,$scan_data,$which);
+     my ($skip,$err,$errmsg);
+     if ($env{'form.scantron_skip_record'}) {
+ 	$skip=1;
+     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
+ 	my $newstudent=$env{'form.scantron_username'}.':'.
+ 	    $env{'form.scantron_domain'};
+ 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
+ 	($line,$err,$errmsg)=
+ 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
+ 				     'ID',{'newid'=>$newid,
+ 				    'username'=>$env{'form.scantron_username'},
+ 				    'domain'=>$env{'form.scantron_domain'}});
+     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
+ 	my $resolution=$env{'form.scantron_CODE_resolution'};
+ 	my $newCODE;
+ 	my %args;
+ 	if      ($resolution eq 'use_unfound') {
+ 	    $newCODE='use_unfound';
+ 	} elsif ($resolution eq 'use_found') {
+ 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
+ 	} elsif ($resolution eq 'use_typed') {
+ 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
+ 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
+ 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
+ 	}
+ 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
+ 	    $args{'CODE_ignore_dup'}=1;
+ 	}
+ 	$args{'CODE'}=$newCODE;
+ 	($line,$err,$errmsg)=
+ 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
+ 				     'CODE',\%args);
+     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
+ 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
+ 	    ($line,$err,$errmsg)=
+ 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
+ 					 $which,'answer',
+ 					 { 'question'=>$question,
+ 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
+                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
+ 	    if ($err) { last; }
+ 	}
+     }
+     if ($err) {
+         $r->print(
+             '<p class="LC_error">'
+            .&mt('Unable to accept last correction, an error occurred: [_1]',
+                 $errmsg)
+            .'</p>');
+     } else {
+ 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
+ 	&scantron_putfile($scanlines,$scan_data);
+     }
+ }
+ =pod
+ =item reset_skipping_status
+    Forgets the current set of remember skipped scanlines (and thus
+    reverts back to considering all lines in the
+    scantron_skipped_<filename> file)
+ =cut
+ sub reset_skipping_status {
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     &scan_data($scan_data,'remember_skipping',undef,1);
+     &scantron_putfile(undef,$scan_data);
+ }
+ =pod
+ =item start_skipping
+    Marks a scanline to be skipped.
+ =cut
+ sub start_skipping {
+     my ($scan_data,$i)=@_;
+     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
+     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
+ 	$remembered{$i}=2;
+     } else {
+ 	$remembered{$i}=1;
+     }
+     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
+ }
+ =pod
+ =item should_be_skipped
+    Checks whether a scanline should be skipped.
+ =cut
+ sub should_be_skipped {
+     my ($scanlines,$scan_data,$i)=@_;
+     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
+ 	# not redoing old skips
+ 	if ($scanlines->{'skipped'}[$i]) { return 1; }
+ 	return 0;
+     }
+     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
+     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
+ 	return 0;
+     }
+     return 1;
+ }
+ =pod
+ =item remember_current_skipped
+    Discovers what scanlines are in the scantron_skipped_<filename>
+    file and remembers them into scan_data for later use.
+ =cut
+ sub remember_current_skipped {
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     my %to_remember;
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	if ($scanlines->{'skipped'}[$i]) {
+ 	    $to_remember{$i}=1;
+ 	}
+     }
+     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
+     &scantron_putfile(undef,$scan_data);
+ }
+ =pod
+ =item check_for_error
+     Checks if there was an error when attempting to remove a specific
+     scantron_.. bubblesheet data file. Prints out an error if
+     something went wrong.
+ =cut
+ sub check_for_error {
+     my ($r,$result)=@_;
+     if ($result ne 'ok' && $result ne 'not_found' ) {
+ 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
+     }
+ }
+ =pod
+ =item scantron_warning_screen
+    Interstitial screen to make sure the operator has selected the
+    correct options before we start the validation phase.
+ =cut
+ sub scantron_warning_screen {
+     my ($button_text,$symb)=@_;
+     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my $CODElist;
+     if ($scantron_config{'CODElocation'} &&
+ 	$scantron_config{'CODEstart'} &&
+ 	$scantron_config{'CODElength'}) {
+ 	$CODElist=$env{'form.scantron_CODElist'};
+ 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">'.&mt('None').'</span>'; }
+ 	$CODElist=
+ 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
+ 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
+     }
+     my $lastbubblepoints;
+     if ($env{'form.scantron_lastbubblepoints'} ne '') {
+         $lastbubblepoints =
+             '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
+             $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
+     }
+     return ('
+ <p>
+ <span class="LC_warning">
+ '.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
+ </p>
+ <table>
+ <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
+ <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
+ '.$CODElist.$lastbubblepoints.'
+ </table>
+ <p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'<br />
+ '.&mt('If something is incorrect, please return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>
+ <br />
+ ');
+ }
+ =pod
+ =item scantron_do_warning
+    Check if the operator has picked something for all required
+    fields. Error out if something is missing.
+ =cut
+ sub scantron_do_warning {
+     my ($r,$symb)=@_;
+     if (!$symb) {return '';}
+     my $default_form_data=&defaultFormData($symb);
+     $r->print(&scantron_form_start().$default_form_data);
+     if ( $env{'form.selectpage'} eq '' ||
+ 	 $env{'form.scantron_selectfile'} eq '' ||
+ 	 $env{'form.scantron_format'} eq '' ) {
+ 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
+ 	if ( $env{'form.selectpage'} eq '') {
+ 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
+ 	}
+ 	if ( $env{'form.scantron_selectfile'} eq '') {
+ 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
+ 	}
+ 	if ( $env{'form.scantron_format'} eq '') {
+ 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
+ 	}
+     } else {
+ 	my $warning=&scantron_warning_screen('Grading: Validate Records',$symb);
+         my $bubbledbyhand=&hand_bubble_option();
+ 	$r->print('
+ '.$warning.$bubbledbyhand.'
+ <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
+ <input type="hidden" name="command" value="scantron_validate" />
+ ');
+     }
+     $r->print("</form><br />");
+     return '';
+ }
+ =pod
+ =item scantron_form_start
+     html hidden input for remembering all selected grading options
+ =cut
+ sub scantron_form_start {
+     my ($max_bubble)=@_;
+     my $result= <<SCANTRONFORM;
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
+   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
+   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
+   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
+   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
+   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
+   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
+   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
+   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
+   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
+ SCANTRONFORM
+   my $line = 0;
+     while (defined($env{"form.scantron.bubblelines.$line"})) {
+        my $chunk =
+ 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
+        $chunk .=
+ 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
+        $chunk .=
+            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
+        $chunk .=
+            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
+        $chunk .=
+            '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
+        $result .= $chunk;
+        $line++;
+     }
+     return $result;
+ }
+ =pod
+ =item scantron_validate_file
+     Dispatch routine for doing validation of a bubblesheet data file.
+     Also processes any necessary information resets that need to
+     occur before validation begins (ignore previous corrections,
+     restarting the skipped records processing)
+ =cut
+ sub scantron_validate_file {
+     my ($r,$symb) = @_;
      if (!$symb) {return '';}
-     my $default_form_data=&defaultFormData($symb,$url);
+     my $default_form_data=&defaultFormData($symb);
+     # do the detection of only doing skipped records first before we delete
+     # them when doing the corrections reset
+     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
+ 	&reset_skipping_status();
+     }
+     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
+ 	&remember_current_skipped();
+ 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
+     }
+     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
+ 	&check_for_error($r,&scantron_remove_file('corrected'));
+ 	&check_for_error($r,&scantron_remove_file('skipped'));
+ 	&check_for_error($r,&scantron_remove_scan_data());
+ 	$env{'form.scantron_options_ignore'}='done';
+     }
+     if ($env{'form.scantron_corrections'}) {
+ 	&scantron_process_corrections($r);
+     }
+     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
+     #get the student pick code ready
+     $r->print(&Apache::loncommon::studentbrowser_javascript());
+     my $nav_error;
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     my $result=&scantron_form_start($max_bubble).$default_form_data;
+     if ($env{'form.scantron_lastbubblepoints'} ne '') {
+         $result .= '<input type="hidden" name="scantron_lastbubblepoints" value="'.$env{'form.scantron_lastbubblepoints'}.'" />';
+     }
+     $r->print($result);
+     my @validate_phases=( 'sequence',
+ 			  'ID',
+ 			  'CODE',
+ 			  'doublebubble',
+ 			  'missingbubbles');
+     if (!$env{'form.validatepass'}) {
+ 	$env{'form.validatepass'} = 0;
+     }
+     my $currentphase=$env{'form.validatepass'};
+     my $stop=0;
+     while (!$stop && $currentphase < scalar(@validate_phases)) {
+ 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
+ 	$r->rflush();
+ 	my $which="scantron_validate_".$validate_phases[$currentphase];
+ 	{
+ 	    no strict 'refs';
+ 	    ($stop,$currentphase)=&$which($r,$currentphase);
+ 	}
+     }
+     if (!$stop) {
+ 	my $warning=&scantron_warning_screen('Start Grading',$symb);
+ 	$r->print(&mt('Validation process complete.').'<br />'.
+                   $warning.
+                   &mt('Perform verification for each student after storage of submissions?').
+                   '&nbsp;<span class="LC_nobreak"><label>'.
+                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
+                   ('&nbsp;'x3).'<label>'.
+                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
+                   '</label></span><br />'.
+                   &mt('Grading will take longer if you use verification.').'<br />'.
+                   &mt('Otherwise, Grade/Manage/Review Bubblesheets [_1] Review bubblesheet data can be used once grading is complete.','&raquo;').'<br /><br />'.
+                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
+                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
+     } else {
+ 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
+ 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
+     }
+     if ($stop) {
+ 	if ($validate_phases[$currentphase] eq 'sequence') {
+ 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
+ 	    $r->print(' '.&mt('this error').' <br />');
+ 	    $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>');
+ 	} else {
+             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
+ 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
+             } else {
+                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
+             }
+ 	    $r->print(' '.&mt('using corrected info').' <br />');
+ 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
+ 	    $r->print(" ".&mt("this scanline saving it for later."));
+ 	}
+     }
+     $r->print(" </form><br />");
+     return '';
+ }
+ =pod
+ =item scantron_remove_file
+    Removes the requested bubblesheet data file, makes sure that
+    scantron_original_<filename> is never removed
+ =cut
+ sub scantron_remove_file {
+     my ($which)=@_;
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $file='scantron_';
+     if ($which eq 'corrected' || $which eq 'skipped') {
+ 	$file.=$which.'_';
+     } else {
+ 	return 'refused';
+     }
+     $file.=$env{'form.scantron_selectfile'};
+     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
+ }
+ =pod
+ =item scantron_remove_scan_data
+    Removes all scan_data correction for the requested bubblesheet
+    data file.  (In the case that both the are doing skipped records we need
+    to remember the old skipped lines for the time being so that element
+    persists for a while.)
+ =cut
+ sub scantron_remove_scan_data {
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
+     my @todelete;
+     my $filename=$env{'form.scantron_selectfile'};
+     foreach my $key (@keys) {
+ 	if ($key=~/^\Q$filename\E_/) {
+ 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
+ 		$key=~/remember_skipping/) {
+ 		next;
+ 	    }
+ 	    push(@todelete,$key);
+ 	}
+     }
+     my $result;
+     if (@todelete) {
+ 	$result = &Apache::lonnet::del('nohist_scantrondata',
+ 				       \@todelete,$cdom,$cname);
+     } else {
+ 	$result = 'ok';
+     }
+     return $result;
+ }
+ =pod
+ =item scantron_getfile
+     Fetches the requested bubblesheet data file (all 3 versions), and
+     the scan_data hash
+   Arguments:
+     None
+   Returns:
+hash references
+      - first one has
+          orig      -
+          corrected -
+          skipped   -  each of which points to an array ref of the specified
+                       file broken up into individual lines
+          count     - number of scanlines
+      - second is the scan_data hash possible keys are
+        ($number refers to scanline numbered $number and thus the key affects
+         only that scanline
+         $bubline refers to the specific bubble line element and the aspects
+         refers to that specific bubble line element)
+        $number.user - username:domain to use
+        $number.CODE_ignore_dup
+                     - ignore the duplicate CODE error
+        $number.useCODE
+                     - use the CODE in the scanline as is
+        $number.no_bubble.$bubline
+                     - it is valid that there is no bubbled in bubble
+                       at $number $bubline
+        remember_skipping
+                     - a frozen hash containing keys of $number and values
+                       of either
+- we are on a 'do skipped records pass' and plan
+                             on processing this line
+- we are on a 'do skipped records pass' and this
+                             scanline has been marked to skip yet again
+ =cut
+ sub scantron_getfile {
+     #FIXME really would prefer a scantron directory
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $lines;
+     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
+     my %scanlines;
+     $scanlines{'orig'}=[(split("\n",$lines,-1))];
+     my $temp=$scanlines{'orig'};
+     $scanlines{'count'}=$#$temp;
+     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
+     if ($lines eq '-1') {
+ 	$scanlines{'corrected'}=[];
+     } else {
+ 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
+     }
+     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
+ 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
+     if ($lines eq '-1') {
+ 	$scanlines{'skipped'}=[];
+     } else {
+ 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
+     }
+     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
+     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
+     my %scan_data = @tmp;
+     return (\%scanlines,\%scan_data);
+ }
+ =pod
+ =item lonnet_putfile
+    Wrapper routine to call &Apache::lonnet::finishuserfileupload
+  Arguments:
+    $contents - data to store
+    $filename - filename to store $contents into
+  Returns:
+    result value from &Apache::lonnet::finishuserfileupload
+ =cut
+ sub lonnet_putfile {
+     my ($contents,$filename)=@_;
+     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     $env{'form.sillywaytopassafilearound'}=$contents;
+     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
+ }
+ =pod
+ =item scantron_putfile
+     Stores the current version of the bubblesheet data files, and the
+     scan_data hash. (Does not modify the original version only the
+     corrected and skipped versions.
+  Arguments:
+     $scanlines - hash ref that looks like the first return value from
+                  &scantron_getfile()
+     $scan_data - hash ref that looks like the second return value from
+                  &scantron_getfile()
+ =cut
+ sub scantron_putfile {
+     my ($scanlines,$scan_data) = @_;
+     #FIXME really would prefer a scantron directory
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     if ($scanlines) {
+ 	my $prefix='scantron_';
+ # no need to update orig, shouldn't change
+ #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
+ #		    $env{'form.scantron_selectfile'});
+ 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
+ 			$prefix.'corrected_'.
+ 			$env{'form.scantron_selectfile'});
+ 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
+ 			$prefix.'skipped_'.
+ 			$env{'form.scantron_selectfile'});
+     }
+     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
+ }
+ =pod
+ =item scantron_get_line
+    Returns the correct version of the scanline
+  Arguments:
+     $scanlines - hash ref that looks like the first return value from
+                  &scantron_getfile()
+     $scan_data - hash ref that looks like the second return value from
+                  &scantron_getfile()
+     $i         - number of the requested line (starts at 0)
+  Returns:
+    A scanline, (either the original or the corrected one if it
+    exists), or undef if the requested scanline should be
+    skipped. (Either because it's an skipped scanline, or it's an
+    unskipped scanline and we are not doing a 'do skipped scanlines'
+    pass.
+ =cut
+ sub scantron_get_line {
+     my ($scanlines,$scan_data,$i)=@_;
+     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
+     #if ($scanlines->{'skipped'}[$i]) { return undef; }
+     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
+     return $scanlines->{'orig'}[$i];
+ }
+ =pod
+ =item scantron_todo_count
+     Counts the number of scanlines that need processing.
+  Arguments:
+     $scanlines - hash ref that looks like the first return value from
+                  &scantron_getfile()
+     $scan_data - hash ref that looks like the second return value from
+                  &scantron_getfile()
+  Returns:
+     $count - number of scanlines to process
+ =cut
+ sub get_todo_count {
+     my ($scanlines,$scan_data)=@_;
+     my $count=0;
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ 	if ($line=~/^[\s\cz]*$/) { next; }
+ 	$count++;
+     }
+     return $count;
+ }
+ =pod
+ =item scantron_put_line
+     Updates the 'corrected' or 'skipped' versions of the bubblesheet
+     data file.
+  Arguments:
+     $scanlines - hash ref that looks like the first return value from
+                  &scantron_getfile()
+     $scan_data - hash ref that looks like the second return value from
+                  &scantron_getfile()
+     $i         - line number to update
+     $newline   - contents of the updated scanline
+     $skip      - if true make the line for skipping and update the
+                  'skipped' file
+ =cut
+ sub scantron_put_line {
+     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
+     if ($skip) {
+ 	$scanlines->{'skipped'}[$i]=$newline;
+ 	&start_skipping($scan_data,$i);
+ 	return;
+     }
+     $scanlines->{'corrected'}[$i]=$newline;
+ }
+ =pod
+ =item scantron_clear_skip
+    Remove a line from the 'skipped' file
+  Arguments:
+     $scanlines - hash ref that looks like the first return value from
+                  &scantron_getfile()
+     $scan_data - hash ref that looks like the second return value from
+                  &scantron_getfile()
+     $i         - line number to update
+ =cut
+ sub scantron_clear_skip {
+     my ($scanlines,$scan_data,$i)=@_;
+     if (exists($scanlines->{'skipped'}[$i])) {
+ 	undef($scanlines->{'skipped'}[$i]);
+ 	return 1;
+     }
+     return 0;
+ }
+ =pod
+ =item scantron_filter_not_exam
+    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
+    filter out resources that are not marked as 'exam' mode
+ =cut
+ sub scantron_filter_not_exam {
+     my ($curres)=@_;
+     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
+ 	# if the user has asked to not have either hidden
+ 	# or 'randomout' controlled resources to be graded
+ 	# don't include them
+ 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
+ 	    && $curres->randomout) {
+ 	    return 0;
+ 	}
+ 	return 1;
+     }
+     return 0;
+ }
+ =pod
+ =item scantron_validate_sequence
+     Validates the selected sequence, checking for resource that are
+     not set to exam mode.
+ =cut
+ sub scantron_validate_sequence {
+     my ($r,$currentphase) = @_;
+     my $navmap=Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $r->print(&navmap_errormsg());
+         return (1,$currentphase);
+     }
+     my (undef,undef,$sequence)=
+ 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
+     my $map=$navmap->getResourceByUrl($sequence);
+     $r->print('<input type="hidden" name="validate_sequence_exam"
+                                     value="ignore" />');
+     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
+ 	my @resources=
+ 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
+ 	if (@resources) {
+ 	    $r->print(
+                 '<p class="LC_warning">'
+                .&mt('Some resources in the sequence currently are not set to'
+                    .' bubblesheet exam mode. Grading these resources currently may not'
+                    .' work correctly.')
+                .'</p>'
+             );
+ 	    return (1,$currentphase);
+ 	}
+     }
+     return (0,$currentphase+1);
+ }
+ sub scantron_validate_ID {
+     my ($r,$currentphase) = @_;
+     #get student info
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my %idmap=&username_to_idmap($classlist);
+     #get scantron line setup
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     my $nav_error;
+     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     my %found=('ids'=>{},'usernames'=>{});
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ 	if ($line=~/^[\s\cz]*$/) { next; }
+ 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ 						 $scan_data);
+ 	my $id=$$scan_record{'scantron.ID'};
+ 	my $found;
+ 	foreach my $checkid (keys(%idmap)) {
+ 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
+ 	}
+ 	if ($found) {
+ 	    my $username=$idmap{$found};
+ 	    if ($found{'ids'}{$found}) {
+ 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ 					 $line,'duplicateID',$found);
+ 		return(1,$currentphase);
+ 	    } elsif ($found{'usernames'}{$username}) {
+ 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ 					 $line,'duplicateID',$username);
+ 		return(1,$currentphase);
+ 	    }
+ 	    #FIXME store away line we previously saw the ID on to use above
+ 	    $found{'ids'}{$found}++;
+ 	    $found{'usernames'}{$username}++;
+ 	} else {
+ 	    if ($id =~ /^\s*$/) {
+ 		my $username=&scan_data($scan_data,"$i.user");
+ 		if (defined($username) && $found{'usernames'}{$username}) {
+ 		    &scantron_get_correction($r,$i,$scan_record,
+ 					     \%scantron_config,
+ 					     $line,'duplicateID',$username);
+ 		    return(1,$currentphase);
+ 		} elsif (!defined($username)) {
+ 		    &scantron_get_correction($r,$i,$scan_record,
+ 					     \%scantron_config,
+ 					     $line,'incorrectID');
+ 		    return(1,$currentphase);
+ 		}
+ 		$found{'usernames'}{$username}++;
+ 	    } else {
+ 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ 					 $line,'incorrectID');
+ 		return(1,$currentphase);
+ 	    }
+ 	}
+     }
+     return (0,$currentphase+1);
+ }
+ sub scantron_get_correction {
+     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
+         $randomorder,$randompick,$respnumlookup,$startline)=@_;
+ #FIXME in the case of a duplicated ID the previous line, probably need
+ #to show both the current line and the previous one and allow skipping
+ #the previous one or the current one
+     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
+         $r->print(
+             '<p class="LC_warning">'
+            .&mt('An error was detected ([_1]) for PaperID [_2]',
+                 "<b>$error</b>",
+                 '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
+            ."</p> \n");
+     } else {
+         $r->print(
+             '<p class="LC_warning">'
+            .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
+                 "<b>$error</b>", $i, "<pre>$line</pre>")
+            ."</p> \n");
+     }
+     my $message =
+         '<p>'
+        .&mt('The ID on the form is [_1]',
+             "<tt>$$scan_record{'scantron.ID'}</tt>")
+        .'<br />'
+        .&mt('The name on the paper is [_1], [_2]',
+             $$scan_record{'scantron.LastName'},
+             $$scan_record{'scantron.FirstName'})
+        .'</p>';
+     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
+     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
+                            # Array populated for doublebubble or
+     my @lines_to_correct;  # missingbubble errors to build javascript
+                            # to validate radio button checking
+     if ($error =~ /ID$/) {
+ 	if ($error eq 'incorrectID') {
+             $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
+ 		      "</p>\n");
+ 	} elsif ($error eq 'duplicateID') {
+             $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
+ 	}
+ 	$r->print($message);
+ 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
+ 	$r->print("\n<ul><li> ");
+ 	#FIXME it would be nice if this sent back the user ID and
+ 	#could do partial userID matches
+ 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
+ 				       'scantron_username','scantron_domain'));
+ 	$r->print(": <input type='text' name='scantron_username' value='' />");
+ 	$r->print("\n:\n".
+ 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
+ 	$r->print('</li>');
+     } elsif ($error =~ /CODE$/) {
+ 	if ($error eq 'incorrectCODE') {
+ 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
+ 	} elsif ($error eq 'duplicateCODE') {
+ 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
+ 	}
+ 	$r->print("<p>".&mt('The CODE on the form is [_1]',
+ 			    "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
+                  ."</p>\n");
+ 	$r->print($message);
+ 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
+ 	$r->print("\n<br /> ");
+ 	my $i=0;
+ 	if ($error eq 'incorrectCODE'
+ 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
+ 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
+ 	    if ($closest > 0) {
+ 		foreach my $testcode (@{$closest}) {
+ 		    my $checked='';
+ 		    if (!$i) { $checked=' checked="checked"'; }
+ 		    $r->print("
+    <label>
+        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
+        ".&mt("Use the similar CODE [_1] instead.",
+ 	    "<b><tt>".$testcode."</tt></b>")."
+     </label>
+     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
+ 		    $r->print("\n<br />");
+ 		    $i++;
+ 		}
+ 	    }
+ 	}
+ 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
+ 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
+ 	    $r->print("
+     <label>
+         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
+        ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
+ 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
+     </label>");
+ 	    $r->print("\n<br />");
+ 	}
+ 	$r->print(&Apache::lonhtmlcommon::scripttag(<<ENDSCRIPT));
+ function change_radio(field) {
+     var slct=document.scantronupload.scantron_CODE_resolution;
+     var i;
+     for (i=0;i<slct.length;i++) {
+         if (slct[i].value==field) { slct[i].checked=true; }
+     }
+ }
+ ENDSCRIPT
+ 	my $href="/adm/pickcode?".
+ 	   "form=".&escape("scantronupload").
+ 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
+ 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
+ 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
+ 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
+ 	if ($env{'form.scantron_CODElist'} =~ /\S/) {
+ 	    $r->print("
+     <label>
+        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
+        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
+ 	     "<a target='_blank' href='$href'>","</a>")."
+     </label>
+     ".&mt("Selected CODE is [_1]",'<input readonly="readonly" type="text" size="8" name="scantron_CODE_selectedvalue" onfocus="javascript:change_radio(\'use_found\')" onchange="javascript:change_radio(\'use_found\')" />'));
+ 	    $r->print("\n<br />");
+ 	}
+ 	$r->print("
+     <label>
+        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
+        ".&mt("Use [_1] as the CODE.",
+ 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
+ 	$r->print("\n<br /><br />");
+     } elsif ($error eq 'doublebubble') {
+ 	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
+ 	# The form field scantron_questions is acutally a list of line numbers.
+ 	# represented by this form so:
+ 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                 $respnumlookup,$startline);
+ 	$r->print('<input type="hidden" name="scantron_questions" value="'.
+ 		  $line_list.'" />');
+ 	$r->print($message);
+ 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
+ 	foreach my $question (@{$arg}) {
+ 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
+                                                    $scan_record, $error,
+                                                    $randomorder,$randompick,
+                                                    $respnumlookup,$startline);
+             push(@lines_to_correct,@linenums);
+ 	}
+         $r->print(&verify_bubbles_checked(@lines_to_correct));
+     } elsif ($error eq 'missingbubble') {
+ 	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
+ 	$r->print($message);
+ 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
+ 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
+ 	# The form field scantron_questions is actually a list of line numbers not
+ 	# a list of question numbers. Therefore:
+ 	#
+ 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                 $respnumlookup,$startline);
+ 	$r->print('<input type="hidden" name="scantron_questions" value="'.
+ 		  $line_list.'" />');
+ 	foreach my $question (@{$arg}) {
+ 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
+                                                    $scan_record, $error,
+                                                    $randomorder,$randompick,
+                                                    $respnumlookup,$startline);
+             push(@lines_to_correct,@linenums);
+ 	}
+         $r->print(&verify_bubbles_checked(@lines_to_correct));
+     } else {
+ 	$r->print("\n<ul>");
+     }
+     $r->print("\n</li></ul>");
+ }
+ sub verify_bubbles_checked {
+     my (@ansnums) = @_;
+     my $ansnumstr = join('","',@ansnums);
+     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
+     &js_escape(\$warning);
+     my $output = &Apache::lonhtmlcommon::scripttag(<<ENDSCRIPT);
+ function verify_bubble_radio(form) {
+     var ansnumArray = new Array ("$ansnumstr");
+     var need_bubble_count = 0;
+     for (var i=0; i<ansnumArray.length; i++) {
+         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
+             var bubble_picked = 0;
+             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
+                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
+                     bubble_picked = 1;
+                 }
+             }
+             if (bubble_picked == 0) {
+                 need_bubble_count ++;
+             }
+         }
+     }
+     if (need_bubble_count) {
+         alert("$warning");
+         return;
+     }
+     form.submit();
+ }
+ ENDSCRIPT
+     return $output;
+ }
+ =pod
+ =item  questions_to_line_list
+ Converts a list of questions into a string of comma separated
+ line numbers in the answer sheet used by the questions.  This is
+ used to fill in the scantron_questions form field.
+   Arguments:
+      questions    - Reference to an array of questions.
+      randomorder  - True if randomorder in use.
+      randompick   - True if randompick in use.
+      respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                      for current line to question number used for same question
+                      in "Master Seqence" (as seen by Course Coordinator).
+      startline    - Reference to hash where key is question number (0 is first)
+                     and key is number of first bubble line for current student
+                     or code-based randompick and/or randomorder.
+ =cut
+ sub questions_to_line_list {
+     my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
+     my @lines;
+     foreach my $item (@{$questions}) {
+         my $question = $item;
+         my ($first,$count,$last);
+         if ($item =~ /^(\d+)\.(\d+)$/) {
+             $question = $1;
+             my $subquestion = $2;
+             my $responsenum = $question-1;
+             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                 $responsenum = $respnumlookup->{$question-1};
+                 if (ref($startline) eq 'HASH') {
+                     $first = $startline->{$question-1} + 1;
+                 }
+             } else {
+                 $first = $first_bubble_line{$responsenum} + 1;
+             }
+             my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+             my $subcount = 1;
+             while ($subcount<$subquestion) {
+                 $first += $subans[$subcount-1];
+                 $subcount ++;
+             }
+             $count = $subans[$subquestion-1];
+         } else {
+             my $responsenum = $question-1;
+             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                 $responsenum = $respnumlookup->{$question-1};
+                 if (ref($startline) eq 'HASH') {
+                     $first = $startline->{$question-1} + 1;
+                 }
+             } else {
+                 $first = $first_bubble_line{$responsenum} + 1;
+             }
+ 	    $count   = $bubble_lines_per_response{$responsenum};
+         }
+         $last = $first+$count-1;
+         push(@lines, ($first..$last));
+     }
+     return join(',', @lines);
+ }
+ =pod
+ =item prompt_for_corrections
+ Prompts for a potentially multiline correction to the
+ user's bubbling (factors out common code from scantron_get_correction
+ for multi and missing bubble cases).
+  Arguments:
+    $r           - Apache request object.
+    $question    - The question number to prompt for.
+    $scan_config - The scantron file configuration hash.
+    $scan_record - Reference to the hash that has the the parsed scanlines.
+    $error       - Type of error
+    $randomorder - True if randomorder in use.
+    $randompick  - True if randompick in use.
+    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                     for current line to question number used for same question
+                     in "Master Seqence" (as seen by Course Coordinator).
+    $startline   - Reference to hash where key is question number (0 is first)
+                   and value is number of first bubble line for current student
+                   or code-based randompick and/or randomorder.
+  Implicit inputs:
+    %bubble_lines_per_response   - Starting line numbers for each question.
+                                   Numbered from 0 (but question numbers are from
+.
+    %first_bubble_line           - Starting bubble line for each question.
+    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse
+                                   type problems render as separate sub-questions,
+                                   in exam mode. This hash contains a
+                                   comma-separated list of the lines per
+                                   sub-question.
+    %responsetype_per_response   - essayresponse, formularesponse,
+                                   stringresponse, imageresponse, reactionresponse,
+                                   and organicresponse type problem parts can have
+                                   multiple lines per response if the weight
+                                   assigned exceeds 10.  In this case, only
+                                   one bubble per line is permitted, but more
+                                   than one line might contain bubbles, e.g.
+                                   bubbling of: line 1 - J, line 2 - J,
+                                   line 3 - B would assign 22 points.
+ =cut
+ sub prompt_for_corrections {
+     my ($r, $question, $scan_config, $scan_record, $error, $randomorder,
+         $randompick, $respnumlookup, $startline) = @_;
+     my ($current_line,$lines);
+     my @linenums;
+     my $questionnum = $question;
+     my ($first,$responsenum);
+     if ($question =~ /^(\d+)\.(\d+)$/) {
+         $question = $1;
+         my $subquestion = $2;
+         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+             $responsenum = $respnumlookup->{$question-1};
+             if (ref($startline) eq 'HASH') {
+                 $first = $startline->{$question-1};
+             }
+         } else {
+             $responsenum = $question-1;
+             $first = $first_bubble_line{$responsenum};
+         }
+         $current_line = $first + 1 ;
+         my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+         my $subcount = 1;
+         while ($subcount<$subquestion) {
+             $current_line += $subans[$subcount-1];
+             $subcount ++;
+         }
+         $lines = $subans[$subquestion-1];
+     } else {
+         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+             $responsenum = $respnumlookup->{$question-1};
+             if (ref($startline) eq 'HASH') {
+                 $first = $startline->{$question-1};
+             }
+         } else {
+             $responsenum = $question-1;
+             $first = $first_bubble_line{$responsenum};
+         }
+         $current_line = $first + 1;
+         $lines        = $bubble_lines_per_response{$responsenum};
+     }
+     if ($lines > 1) {
+         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
+         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
+             $r->print(
+                 &mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines)
+                .'<br /><br />'
+                .&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.')
+                .'<br />'
+                .&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.')
+                .'<br />'
+                .&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.")
+                .'<br /><br />'
+             );
+         } else {
+             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
+         }
+     }
+     for (my $i =0; $i < $lines; $i++) {
+         my $selected = $$scan_record{"scantron.$current_line.answer"};
+ 	&scantron_bubble_selector($r,$scan_config,$current_line,
+ 	        		  $questionnum,$error,split('', $selected));
+         push(@linenums,$current_line);
+ 	$current_line++;
+     }
+     if ($lines > 1) {
+ 	$r->print("<hr /><br />");
+     }
+     return @linenums;
+ }
+ =pod
+ =item scantron_bubble_selector
+    Generates the html radiobuttons to correct a single bubble line
+    possibly showing the existing the selected bubbles if known
+  Arguments:
+     $r           - Apache request object
+     $scan_config - hash from &Apache::lonnet::get_scantron_config()
+     $line        - Number of the line being displayed.
+     $questionnum - Question number (may include subquestion)
+     $error       - Type of error.
+     @selected    - Array of bubbles picked on this line.
+ =cut
+ sub scantron_bubble_selector {
+     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
+     my $max=$$scan_config{'Qlength'};
+     my $scmode=$$scan_config{'Qon'};
+     if ($scmode eq 'number' || $scmode eq 'letter') {
+         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
+             ($$scan_config{'BubblesPerRow'} > 0)) {
+             $max=$$scan_config{'BubblesPerRow'};
+             if (($scmode eq 'number') && ($max > 10)) {
+                 $max = 10;
+             } elsif (($scmode eq 'letter') && $max > 26) {
+                 $max = 26;
+             }
+         } else {
+             $max = 10;
+         }
+     }
+     my @alphabet=('A'..'Z');
+     $r->print(&Apache::loncommon::start_data_table().
+               &Apache::loncommon::start_data_table_row());
+     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
+     for (my $i=0;$i<$max+1;$i++) {
+ 	$r->print("\n".'<td align="center">');
+ 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
+ 	else { $r->print('&nbsp;'); }
+ 	$r->print('</td>');
+     }
+     $r->print(&Apache::loncommon::end_data_table_row().
+               &Apache::loncommon::start_data_table_row());
+     for (my $i=0;$i<$max;$i++) {
+ 	$r->print("\n".
+ 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
+ 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
+     }
+     my $nobub_checked = ' ';
+     if ($error eq 'missingbubble') {
+         $nobub_checked = ' checked = "checked" ';
+     }
+     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
+ 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
+               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
+               $line.'" value="'.$questionnum.'" /></td>');
+     $r->print(&Apache::loncommon::end_data_table_row().
+               &Apache::loncommon::end_data_table());
+ }
+ =pod
+ =item num_matches
+    Counts the number of characters that are the same between the two arguments.
+  Arguments:
+    $orig - CODE from the scanline
+    $code - CODE to match against
+  Returns:
+    $count - integer count of the number of same characters between the
+             two arguments
+ =cut
+ sub num_matches {
+     my ($orig,$code) = @_;
+     my @code=split(//,$code);
+     my @orig=split(//,$orig);
+     my $same=0;
+     for (my $i=0;$i<scalar(@code);$i++) {
+ 	if ($code[$i] eq $orig[$i]) { $same++; }
+     }
+     return $same;
+ }
+ =pod
+ =item scantron_get_closely_matching_CODEs
+    Cycles through all CODEs and finds the set that has the greatest
+    number of same characters as the provided CODE
+  Arguments:
+    $allcodes - hash ref returned by &get_codes()
+    $CODE     - CODE from the current scanline
+  Returns:
+element list
+     - first elements is number of how closely matching the best fit is
+       (5 means best set has 5 matching characters)
+     - second element is an arrary ref containing the set of valid CODEs
+       that best fit the passed in CODE
+ =cut
+ sub scantron_get_closely_matching_CODEs {
+     my ($allcodes,$CODE)=@_;
+     my @CODEs;
+     foreach my $testcode (sort(keys(%{$allcodes}))) {
+ 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
+     }
+     return ($#CODEs,$CODEs[-1]);
+ }
+ =pod
+ =item get_codes
+    Builds a hash which has keys of all of the valid CODEs from the selected
+    set of remembered CODEs.
+  Arguments:
+   $old_name - name of the set of remembered CODEs
+   $cdom     - domain of the course
+   $cnum     - internal course name
+  Returns:
+   %allcodes - keys are the valid CODEs, values are all 1
+ =cut
+ sub get_codes {
+     my ($old_name, $cdom, $cnum) = @_;
+     if (!$old_name) {
+ 	$old_name=$env{'form.scantron_CODElist'};
+     }
+     if (!$cdom) {
+ 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
+     }
+     if (!$cnum) {
+ 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
+     }
+     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
+ 				    $cdom,$cnum);
+     my %allcodes;
+     if ($result{"type\0$old_name"} eq 'number') {
+ 	%allcodes=map {($_,1)} split(',',$result{$old_name});
+     } else {
+ 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
+     }
+     return %allcodes;
+ }
+ =pod
+ =item scantron_validate_CODE
+    Validates all scanlines in the selected file to not have any
+    invalid or underspecified CODEs and that none of the codes are
+    duplicated if this was requested.
+ =cut
+ sub scantron_validate_CODE {
+     my ($r,$currentphase) = @_;
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     if ($scantron_config{'CODElocation'} &&
+ 	$scantron_config{'CODEstart'} &&
+ 	$scantron_config{'CODElength'}) {
+ 	if (!defined($env{'form.scantron_CODElist'})) {
+ 	    &FIXME_blow_up()
+ 	}
+     } else {
+ 	return (0,$currentphase+1);
+     }
+     my %usedCODEs;
+     my %allcodes=&get_codes();
+     my $nav_error;
+     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ 	if ($line=~/^[\s\cz]*$/) { next; }
+ 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ 						 $scan_data);
+ 	my $CODE=$$scan_record{'scantron.CODE'};
+ 	my $error=0;
+ 	if (!&Apache::lonnet::validCODE($CODE)) {
+ 	    &scantron_get_correction($r,$i,$scan_record,
+ 				     \%scantron_config,
+ 				     $line,'incorrectCODE',\%allcodes);
+ 	    return(1,$currentphase);
+ 	}
+ 	if (%allcodes && !exists($allcodes{$CODE})
+ 	    && !$$scan_record{'scantron.useCODE'}) {
+ 	    &scantron_get_correction($r,$i,$scan_record,
+ 				     \%scantron_config,
+ 				     $line,'incorrectCODE',\%allcodes);
+ 	    return(1,$currentphase);
+ 	}
+ 	if (exists($usedCODEs{$CODE})
+ 	    && $env{'form.scantron_CODEunique'} eq 'yes'
+ 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
+ 	    &scantron_get_correction($r,$i,$scan_record,
+ 				     \%scantron_config,
+ 				     $line,'duplicateCODE',$usedCODEs{$CODE});
+ 	    return(1,$currentphase);
+ 	}
+ 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
+     }
+     return (0,$currentphase+1);
+ }
+ =pod
+ =item scantron_validate_doublebubble
+    Validates all scanlines in the selected file to not have any
+    bubble lines with multiple bubbles marked.
+ =cut
+ sub scantron_validate_doublebubble {
+     my ($r,$currentphase) = @_;
+     #get student info
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my %idmap=&username_to_idmap($classlist);
+     my (undef,undef,$sequence)=
+         &Apache::lonnet::decode_symb($env{'form.selectpage'});
+     #get scantron line setup
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     my $map=$navmap->getResourceByUrl($sequence);
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+     my $nav_error;
+     if (ref($map)) {
+         $randomorder = $map->randomorder();
+         $randompick = $map->randompick();
+         if ($randomorder || $randompick) {
+             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+             if ($nav_error) {
+                 $r->print(&navmap_errormsg());
+                 return(1,$currentphase);
+             }
+             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                     \%grader_randomlists_by_symb,$bubbles_per_row);
+         }
+     } else {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ 	if ($line=~/^[\s\cz]*$/) { next; }
+ 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+ 						 $scan_data,undef,\%idmap,$randomorder,
+                                                  $randompick,$sequence,\@master_seq,
+                                                  \%symb_to_resource,\%grader_partids_by_symb,
+                                                  \%orderedforcode,\%respnumlookup,\%startline);
+ 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
+ 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
+ 				 'doublebubble',
+ 				 $$scan_record{'scantron.doubleerror'},
+                                  $randomorder,$randompick,\%respnumlookup,\%startline);
+     	return (1,$currentphase);
+     }
+     return (0,$currentphase+1);
+ }
+ sub scantron_get_maxbubble {
+     my ($nav_error,$scantron_config) = @_;
+     if (defined($env{'form.scantron_maxbubble'}) &&
+ 	$env{'form.scantron_maxbubble'}) {
+ 	&restore_bubble_lines();
+ 	return $env{'form.scantron_maxbubble'};
+     }
+     my (undef, undef, $sequence) =
+ 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
+     my $navmap=Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         if (ref($nav_error)) {
+             $$nav_error = 1;
+         }
+         return;
+     }
+     my $map=$navmap->getResourceByUrl($sequence);
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
+     &Apache::lonxml::clear_problem_counter();
+     my $uname       = $env{'user.name'};
+     my $udom        = $env{'user.domain'};
+     my $cid         = $env{'request.course.id'};
+     my $total_lines = 0;
+     %bubble_lines_per_response = ();
+     %first_bubble_line         = ();
+     %subdivided_bubble_lines   = ();
+     %responsetype_per_response = ();
+     %masterseq_id_responsenum  = ();
+     my $response_number = 0;
+     my $bubble_line     = 0;
+     foreach my $resource (@resources) {
+         my $resid = $resource->id();
+         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
+                                                           $udom,undef,$bubbles_per_row);
+         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
+ 	    foreach my $part_id (@{$parts}) {
+                 my $lines;
+ 	        # TODO - make this a persistent hash not an array.
+                 # optionresponse, matchresponse and rankresponse type items
+                 # render as separate sub-questions in exam mode.
+                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
+                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
+                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
+                     my ($numbub,$numshown);
+                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
+                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
+                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
+                         }
+                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
+                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
+                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
+                         }
+                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
+                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
+                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
+                         }
+                     }
+                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
+                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
+                     }
+                     my $bubbles_per_row =
+                         &bubblesheet_bubbles_per_row($scantron_config);
+                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
+                     if (($numbub % $bubbles_per_row) != 0) {
+                         $inner_bubble_lines++;
+                     }
+                     for (my $i=0; $i<$numshown; $i++) {
+                         $subdivided_bubble_lines{$response_number} .=
+                             $inner_bubble_lines.',';
+                     }
+                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
+                     $lines = $numshown * $inner_bubble_lines;
+                 } else {
+                     $lines = $analysis->{"$part_id.bubble_lines"};
+                 }
+                 $first_bubble_line{$response_number} = $bubble_line;
+ 	        $bubble_lines_per_response{$response_number} = $lines;
+                 $responsetype_per_response{$response_number} =
+                     $analysis->{$part_id.'.type'};
+                 $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;
+ 	        $response_number++;
+ 	        $bubble_line +=  $lines;
+ 	        $total_lines +=  $lines;
+ 	    }
+         }
+     }
+     &Apache::lonnet::delenv('scantron.');
+     &save_bubble_lines();
+     $env{'form.scantron_maxbubble'} =
+ 	$total_lines;
+     return $env{'form.scantron_maxbubble'};
+ }
+ sub bubblesheet_bubbles_per_row {
+     my ($scantron_config) = @_;
+     my $bubbles_per_row;
+     if (ref($scantron_config) eq 'HASH') {
+         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
+     }
+     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
+         $bubbles_per_row = 10;
+     }
+     return $bubbles_per_row;
+ }
+ sub scantron_validate_missingbubbles {
+     my ($r,$currentphase) = @_;
+     #get student info
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my %idmap=&username_to_idmap($classlist);
+     my (undef,undef,$sequence)=
+         &Apache::lonnet::decode_symb($env{'form.selectpage'});
+     #get scantron line setup
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my ($scanlines,$scan_data)=&scantron_getfile();
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     my $map=$navmap->getResourceByUrl($sequence);
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+     my $nav_error;
+     if (ref($map)) {
+         $randomorder = $map->randomorder();
+         $randompick = $map->randompick();
+         if ($randomorder || $randompick) {
+             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+             if ($nav_error) {
+                 $r->print(&navmap_errormsg());
+                 return(1,$currentphase);
+             }
+             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                     \%grader_randomlists_by_symb,$bubbles_per_row);
+         }
+     } else {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return(1,$currentphase);
+     }
+     if (!$max_bubble) { $max_bubble=2**31; }
+     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+ 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+ 	if ($line=~/^[\s\cz]*$/) { next; }
+ 	my $scan_record =
+             &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
+ 				     $randomorder,$randompick,$sequence,\@master_seq,
+                                      \%symb_to_resource,\%grader_partids_by_symb,
+                                      \%orderedforcode,\%respnumlookup,\%startline);
+ 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
+ 	my @to_correct;
+ 	# Probably here's where the error is...
+ 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
+             my $lastbubble;
+             if ($missing =~ /^(\d+)\.(\d+)$/) {
+                my $question = $1;
+                my $subquestion = $2;
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$question-1};
+                    $first = $startline{$question-1};
+                } else {
+                    $responsenum = $question-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+                my $subcount = 1;
+                while ($subcount<$subquestion) {
+                    $first += $subans[$subcount-1];
+                    $subcount ++;
+                }
+                my $count = $subans[$subquestion-1];
+                $lastbubble = $first + $count;
+             } else {
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$missing-1};
+                    $first = $startline{$missing-1};
+                } else {
+                    $responsenum = $missing-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                $lastbubble = $first + $bubble_lines_per_response{$responsenum};
+             }
+             if ($lastbubble > $max_bubble) { next; }
+ 	    push(@to_correct,$missing);
+ 	}
+ 	if (@to_correct) {
+ 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
+ 				     $line,'missingbubble',\@to_correct,
+                                      $randomorder,$randompick,\%respnumlookup,
+                                      \%startline);
+ 	    return (1,$currentphase);
+ 	}
+     }
+     return (0,$currentphase+1);
+ }
+ sub hand_bubble_option {
+     my (undef, undef, $sequence) =
+         &Apache::lonnet::decode_symb($env{'form.selectpage'});
+     return if ($sequence eq '');
+     my $navmap = Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         return;
+     }
+     my $needs_hand_bubbles;
+     my $map=$navmap->getResourceByUrl($sequence);
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     foreach my $res (@resources) {
+         if (ref($res)) {
+             if ($res->is_problem()) {
+                 my $partlist = $res->parts();
+                 foreach my $part (@{ $partlist }) {
+                     my @types = $res->responseType($part);
+                     if (grep(/^(chem|essay|image|formula|math|string|functionplot)$/,@types)) {
+                         $needs_hand_bubbles = 1;
+                         last;
+                     }
+                 }
+             }
+         }
+     }
+     if ($needs_hand_bubbles) {
+         my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+         my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+         return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
+                &mt('If you have already graded these by bubbling sheets to indicate points awarded, [_1]what point value is assigned to a filled last bubble in each row?','<br />').
+                '<label><input type="radio" name="scantron_lastbubblepoints" value="'.$bubbles_per_row.'" checked="checked" />'.&mt('[quant,_1,point]',$bubbles_per_row).'</label>&nbsp;'.&mt('or').'&nbsp;'.
+                '<label><input type="radio" name="scantron_lastbubblepoints" value="0" />'.&mt('0 points').'</label></p>';
+     }
+     return;
+ }
+ sub scantron_process_students {
+     my ($r,$symb) = @_;
+     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
+     if (!$symb) {
+ 	return '';
+     }
+     my $default_form_data=&defaultFormData($symb);
-     my %scantron_config=&get_scantron_config($ENV{'form.scantron_format'});
+     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
-     my $scanlines=Apache::File->new($Apache::lonnet::perlvar{'lonScansDir'}."/$ENV{'form.scantron_selectfile'}");
+     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
-     my @scanlines=<$scanlines>;
+     my ($scanlines,$scan_data)=&scantron_getfile();
      my $classlist=&Apache::loncoursedata::get_classlist();
      my %idmap=&username_to_idmap($classlist);
-     my $navmap=Apache::lonnavmaps::navmap->new($ENV{'request.course.fn'}.'.db',$ENV{'request.course.fn'}.'_parms.db',1, 1);
+     my $navmap=Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
      my $map=$navmap->getResourceByUrl($sequence);
+     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+         %grader_randomlists_by_symb);
+     if (ref($map)) {
+         $randomorder = $map->randomorder();
+         $randompick = $map->randompick();
+     } else {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     my $nav_error;
      my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-     $r->print("geto ".scalar(@resources)."<br />");
+     if ($randomorder || $randompick) {
+         $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+         if ($nav_error) {
+             $r->print(&navmap_errormsg());
+             return '';
+         }
+     }
+     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                             \%grader_randomlists_by_symb,$bubbles_per_row);
+     my ($uname,$udom);
      my $result= <<SCANTRONFORM;
  <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
    <input type="hidden" name="command" value="scantron_configphase" />
- Line 3254  SCANTRONFORM
+ Line 8656  SCANTRONFORM
      $r->print($result);
      my @delayqueue;
-     my $totalcorrect;
+     my (%completedstudents,%scandata);
-     my $totalincorrect;
+     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
+     my $count=&get_todo_count($scanlines,$scan_data);
+     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
+     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
+     $r->print('<br />');
+     my $start=&Time::HiRes::time();
+     my $i=-1;
+     my $started;
+     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     # If an ssi failed in scantron_get_maxbubble, put an error message out to
+     # the user and return.
+     if ($ssi_error) {
+ 	$r->print("</form>");
+ 	&ssi_print_error($r);
+         &Apache::lonnet::remove_lock($lock);
+ 	return '';		# Dunno why the other returns return '' rather than just returning.
+     }
+     my %lettdig = &Apache::lonnet::letter_to_digits();
+     my $numletts = scalar(keys(%lettdig));
+     my %orderedforcode;
+     while ($i<$scanlines->{'count'}) {
+  	($uname,$udom)=('','');
+  	$i++;
+  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
+  	if ($line=~/^[\s\cz]*$/) { next; }
+ 	if ($started) {
+ 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
+ 	}
+ 	$started=1;
+         my %respnumlookup = ();
+         my %startline = ();
+         my $total;
+  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+                                                  $scan_data,undef,\%idmap,$randomorder,
+                                                  $randompick,$sequence,\@master_seq,
+                                                  \%symb_to_resource,\%grader_partids_by_symb,
+                                                  \%orderedforcode,\%respnumlookup,\%startline,
+                                                  \$total);
+  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
+  					      \%idmap,$i)) {
+   	    &scantron_add_delay(\@delayqueue,$line,
+  				'Unable to find a student that matches',1);
+  	    next;
+   	}
+  	if (exists $completedstudents{$uname}) {
+  	    &scantron_add_delay(\@delayqueue,$line,
+  				'Student '.$uname.' has multiple sheets',2);
+  	    next;
+  	}
+         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
+         my $user = $uname.':'.$usec;
+   	($uname,$udom)=split(/:/,$uname);
+         my $scancode;
+         if ((exists($scan_record->{'scantron.CODE'})) &&
+             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
+             $scancode = $scan_record->{'scantron.CODE'};
+         } else {
+             $scancode = '';
+         }
-     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,
+         my @mapresources = @resources;
- 	           'Scantron Status','Scantron Progress',scalar(@scanlines));
+         if ($randomorder || $randompick) {
-     foreach my $line (@scanlines) {
+             @mapresources =
- 	my $studentcorrect;
+                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
- 	my $studentincorrect;
+                              \%orderedforcode);
+         }
- 	chomp($line);
+         my (%partids_by_symb,$res_error);
- 	my $scan_record=&scantron_parse_scanline($line,\%scantron_config);
+         foreach my $resource (@mapresources) {
- 	my ($uname,$udom);
+             my $ressymb;
- 	if ($uname=&scantron_find_student($scan_record,\%idmap)) {
+             if (ref($resource)) {
- 	    &scantron_add_delay(\@delayqueue,$line,
+                 $ressymb = $resource->symb();
- 				'Unable to find a student that matches');
+             } else {
- 	}
+                 $res_error = 1;
- 	$r->print('<pre>doing studnet'.$uname.'</pre>');
+                 last;
- 	($uname,$udom)=split(/:/,$uname);
+             }
- 	&Apache::lonnet::delenv('form.counter');
+             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
- 	&Apache::lonnet::appenv(%$scan_record);
+                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
- #    &Apache::lonhomework::showhash(%ENV);
+                 my $currcode;
-     $Apache::lonxml::debug=1;
+                 if (exists($grader_randomlists_by_symb{$ressymb})) {
- 	&Apache::lonxml::debug("line is $line");
+                     $currcode = $scancode;
+                 }
- 	    my $i=0;
+                 my ($analysis,$parts) =
- 	foreach my $resource (@resources) {
+                     &scantron_partids_tograde($resource,$env{'request.course.id'},
- 	    $i++;
+                                               $uname,$udom,undef,$bubbles_per_row,
- 	    my $result=&Apache::lonnet::ssi($resource->src(),
+                                               $currcode);
- 				 ('submitted'     =>'scantron',
+                 $partids_by_symb{$ressymb} = $parts;
- 				  'grade_target'  =>'grade',
+             } else {
- 				  'grade_username'=>$uname,
+                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
- 				  'grade_domain'  =>$udom,
+             }
- 				  'grade_courseid'=>$ENV{'request.course.id'},
+         }
- 				  'grade_symb'    =>$resource->symb()));
- 	    my %score=&Apache::lonnet::restore($resource->symb(),
+         if ($res_error) {
- 					       $ENV{'request.course.id'},
+             &scantron_add_delay(\@delayqueue,$line,
- 					       $udom,$uname);
+                                 'An error occurred while grading student '.$uname,2);
- 	    foreach my $part ($resource->{PARTS}) {
+             next;
- 		if ($score{'resource.'.$part.'.solved'} =~ /^correct/) {
+         }
- 		    $studentcorrect++;
- 		    $totalcorrect++;
+ 	&Apache::lonxml::clear_problem_counter();
- 		} else {
+   	&Apache::lonnet::appenv($scan_record);
- 		    $studentincorrect++;
- 		    $totalincorrect++;
+ 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
- 		}
+ 	    &scantron_putfile($scanlines,$scan_data);
- 	    }
+ 	}
- 	    $r->print('<pre>'.
- 		      $resource->symb().'-'.
- 		      $resource->src().'-'.'</pre>result is'.$result);
- 	    &Apache::lonhomework::showhash(%score);
- 	#    if ($i eq 3) {last;}
- 	}
- 	&Apache::lonnet::delenv('form.counter');
- 	&Apache::lonnet::delenv('scantron\.');
- 	&Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
-              'last student Who got a '.$studentcorrect.' correct and '.
- 	     $studentincorrect.' incorrect. The class has gotten '.
-              $totalcorrect.' correct and '.$totalincorrect.' incorrect');
- 	last;
- 	#FIXME
- 	#get iterator for $sequence
- 	#foreach question 'submit' the students answer to the server
- 	#   through grade target {
- 	#   generate data to pass back that includes grade recevied
- 	#}
-     }
-     $Apache::lonxml::debug=0;
-     foreach my $delay (@delayqueue) {
- 	#FIXME
- 	#print out each delayed student with interface to select how
- 	#  to repair student provided info
- 	#Expected errors include
- 	#  1 bad/no stuid/username
- 	#  2 invalid bubblings
+         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
+                                    \@mapresources,\%partids_by_symb,
+                                    $bubbles_per_row,$randomorder,$randompick,
+                                    \%respnumlookup,\%startline)
+             eq 'ssi_error') {
+             $ssi_error = 0; # So end of handler error message does not trigger.
+             $r->print("</form>");
+             &ssi_print_error($r);
+             &Apache::lonnet::remove_lock($lock);
+             return '';      # Why return ''?  Beats me.
+         }
+         if (($scancode) && ($randomorder || $randompick)) {
+             my $parmresult =
+                 &Apache::lonparmset::storeparm_by_symb($symb,
+                                                        '0_examcode',2,$scancode,
+                                                        'string_examcode',$uname,
+                                                        $udom);
+         }
+ 	$completedstudents{$uname}={'line'=>$line};
+         if ($env{'form.verifyrecord'}) {
+             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+             if ($randompick) {
+                 if ($total) {
+                     $lastpos = $total*$scantron_config{'Qlength'};
+                 }
+             }
+             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
+             chomp($studentdata);
+             $studentdata =~ s/\r$//;
+             my $studentrecord = '';
+             my $counter = -1;
+             foreach my $resource (@mapresources) {
+                 my $ressymb = $resource->symb();
+                 ($counter,my $recording) =
+                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
+                                              $counter,$studentdata,$partids_by_symb{$ressymb},
+                                              \%scantron_config,\%lettdig,$numletts,$randomorder,
+                                              $randompick,\%respnumlookup,\%startline);
+                 $studentrecord .= $recording;
+             }
+             if ($studentrecord ne $studentdata) {
+                 &Apache::lonxml::clear_problem_counter();
+                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
+                                            \@mapresources,\%partids_by_symb,
+                                            $bubbles_per_row,$randomorder,$randompick,
+                                            \%respnumlookup,\%startline)
+                     eq 'ssi_error') {
+                     $ssi_error = 0; # So end of handler error message does not trigger.
+                     $r->print("</form>");
+                     &ssi_print_error($r);
+                     &Apache::lonnet::remove_lock($lock);
+                     delete($completedstudents{$uname});
+                     return '';
+                 }
+                 $counter = -1;
+                 $studentrecord = '';
+                 foreach my $resource (@mapresources) {
+                     my $ressymb = $resource->symb();
+                     ($counter,my $recording) =
+                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
+                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
+                                                  \%scantron_config,\%lettdig,$numletts,
+                                                  $randomorder,$randompick,\%respnumlookup,
+                                                  \%startline);
+                     $studentrecord .= $recording;
+                 }
+                 if ($studentrecord ne $studentdata) {
+                     $r->print('<p><span class="LC_warning">');
+                     if ($scancode eq '') {
+                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
+                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
+                     } else {
+                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
+                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
+                     }
+                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
+                               &Apache::loncommon::start_data_table_header_row()."\n".
+                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
+                               &Apache::loncommon::end_data_table_header_row()."\n".
+                               &Apache::loncommon::start_data_table_row().
+                               '<td>'.&mt('Bubblesheet').'</td>'.
+                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
+                               &Apache::loncommon::end_data_table_row().
+                               &Apache::loncommon::start_data_table_row().
+                               '<td>'.&mt('Stored submissions').'</td>'.
+                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
+                               &Apache::loncommon::end_data_table_row().
+                               &Apache::loncommon::end_data_table().'</p>');
+                 } else {
+                     $r->print('<br /><span class="LC_warning">'.
+                              &mt('A second grading pass was needed for user: [_1] with ID: [_2], because a mismatch was seen on the first pass.',$uname.':'.$udom,$scan_record->{'scantron.ID'}).'<br />'.
+                              &mt("As a consequence, this user's submission history records two tries.").
+                                  '</span><br />');
+                 }
+             }
+         }
+         if (&Apache::loncommon::connection_aborted($r)) { last; }
+     } continue {
+ 	&Apache::lonxml::clear_problem_counter();
+ 	&Apache::lonnet::delenv('scantron.');
+     }
+     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+     &Apache::lonnet::remove_lock($lock);
+ #    my $lasttime = &Time::HiRes::time()-$start;
+ #    $r->print("<p>took $lasttime</p>");
+     $r->print("</form>");
+     return '';
+ }
+ sub graders_resources_pass {
+     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
+         $bubbles_per_row) = @_;
+     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) &&
+         (ref($grader_randomlists_by_symb) eq 'HASH')) {
+         foreach my $resource (@{$resources}) {
+             my $ressymb = $resource->symb();
+             my ($analysis,$parts) =
+                 &scantron_partids_tograde($resource,$env{'request.course.id'},
+                                           $env{'user.name'},$env{'user.domain'},
+,$bubbles_per_row);
+             $grader_partids_by_symb->{$ressymb} = $parts;
+             if (ref($analysis) eq 'HASH') {
+                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
+                     $grader_randomlists_by_symb->{$ressymb} =
+                         $analysis->{'parts_withrandomlist'};
+                 }
+             }
+         }
      }
-     #FIXME
+     return;
-     # if delay queue exists 2 submits one to process delayed students one
+ }
-     #     to ignore delayed students, possibly saving the delay queue for later
+ =pod
-     $navmap->untieHashes();
+ =item users_order
+   Returns array of resources in current map, ordered based on either CODE,
+   if this is a CODEd exam, or based on student's identity if this is a
+   "NAMEd" exam.
+   Should be used when randomorder and/or randompick applied when the
+   corresponding exam was printed, prior to students completing bubblesheets
+   for the version of the exam the student received.
+ =cut
+ sub users_order  {
+     my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
+     my @mapresources;
+     unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
+         return @mapresources;
+     }
+     if ($scancode) {
+         if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
+             @mapresources = @{$orderedforcode->{$scancode}};
+         } else {
+             $env{'form.CODE'} = $scancode;
+             my $actual_seq =
+                 &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                                $master_seq,
+                                                                $user,$scancode,1);
+             if (ref($actual_seq) eq 'ARRAY') {
+                 @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
+                 if (ref($orderedforcode) eq 'HASH') {
+                     if (@mapresources > 0) {
+                         $orderedforcode->{$scancode} = \@mapresources;
+                     }
+                 }
+             }
+             delete($env{'form.CODE'});
+         }
+     } else {
+         my $actual_seq =
+             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                            $master_seq,
+                                                            $user,undef,1);
+         if (ref($actual_seq) eq 'ARRAY') {
+             @mapresources =
+                 map { $symb_to_resource->{$_}; } @{$actual_seq};
+         }
+     }
+     return @mapresources;
+ }
+ sub grade_student_bubbles {
+     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
+         $randomorder,$randompick,$respnumlookup,$startline) = @_;
+     my $uselookup = 0;
+     if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
+         (ref($startline) eq 'HASH')) {
+         $uselookup = 1;
+     }
+     if (ref($resources) eq 'ARRAY') {
+         my $count = 0;
+         foreach my $resource (@{$resources}) {
+             my $ressymb = $resource->symb();
+             my %form = ('submitted'      => 'scantron',
+                         'grade_target'   => 'grade',
+                         'grade_username' => $uname,
+                         'grade_domain'   => $udom,
+                         'grade_courseid' => $env{'request.course.id'},
+                         'grade_symb'     => $ressymb,
+                         'CODE'           => $scancode
+                        );
+             if ($bubbles_per_row ne '') {
+                 $form{'bubbles_per_row'} = $bubbles_per_row;
+             }
+             if ($env{'form.scantron_lastbubblepoints'} ne '') {
+                 $form{'scantron_lastbubblepoints'} = $env{'form.scantron_lastbubblepoints'};
+             }
+             if (ref($parts) eq 'HASH') {
+                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
+                     foreach my $part (@{$parts->{$ressymb}}) {
+                         if ($uselookup) {
+                             $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
+                         } else {
+                             $form{'scantron_questnum_start.'.$part} =
++$env{'form.scantron.first_bubble_line.'.$count};
+                         }
+                         $count++;
+                     }
+                 }
+             }
+             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
+             return 'ssi_error' if ($ssi_error);
+             last if (&Apache::loncommon::connection_aborted($r));
+         }
+     }
+     return;
+ }
+ sub scantron_upload_scantron_data {
+     my ($r,$symb) = @_;
+     my $dom = $env{'request.role.domain'};
+     my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($dom);
+     my $domdesc = &Apache::lonnet::domain($dom,'description');
+     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
+     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
+ 							  'domainid',
+ 							  'coursename',$dom);
+     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
+                        ('&nbsp'x2).&mt('(shows course personnel)');
+     my $default_form_data=&defaultFormData($symb);
+     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
+     &js_escape(\$nofile_alert);
+     my $nocourseid_alert = &mt("Please use the 'Select Course' link to open a separate window where you can search for a course to which a file can be uploaded.");
+     &js_escape(\$nocourseid_alert);
+     $r->print(&Apache::lonhtmlcommon::scripttag('
+     function checkUpload(formname) {
+ 	if (formname.upfile.value == "") {
+ 	    alert("'.$nofile_alert.'");
+ 	    return false;
+ 	}
+         if (formname.courseid.value == "") {
+             alert("'.$nocourseid_alert.'");
+             return false;
+         }
+ 	formname.submit();
+     }
+     function ToSyllabus() {
+         var cdom = '."'$dom'".';
+         var cnum = document.rules.courseid.value;
+         if (cdom == "" || cdom == null) {
+             return;
+         }
+         if (cnum == "" || cnum == null) {
+            return;
+         }
+         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
+                             "height=350,width=350,scrollbars=yes,menubar=no");
+         return;
+     }
+     '.$formatjs.'
+ '));
+     $r->print('
+ <h3>'.&mt('Send bubblesheet data to a course').'</h3>
+ <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
+ '.$default_form_data.
+   &Apache::lonhtmlcommon::start_pick_box().
+   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
+   '<input name="courseid" type="text" size="30" />'.$select_link.
+   &Apache::lonhtmlcommon::row_closure().
+   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
+   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
+   &Apache::lonhtmlcommon::row_closure().
+   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
+   '<input name="domainid" type="hidden" />'.$domdesc.
+   &Apache::lonhtmlcommon::row_closure());
+     if ($formatoptions) {
+         $r->print(&Apache::lonhtmlcommon::row_title($formattitle).$formatoptions.
+                   &Apache::lonhtmlcommon::row_closure());
+     }
+     $r->print(
+   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
+   '<input type="file" name="upfile" size="50" />'.
+   &Apache::lonhtmlcommon::row_closure(1).
+   &Apache::lonhtmlcommon::end_pick_box().'<br />
+ <input name="command" value="scantronupload_save" type="hidden" />
+ <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
+ </form>
+ ');
+     return '';
+ }
+ sub scantron_upload_dataformat {
+     my ($dom) = @_;
+     my ($formatoptions,$formattitle,$formatjs);
+     $formatjs = <<'END';
+ function toggleScantab(form) {
+    return;
+ }
+ END
+     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$dom);
+     if (ref($domconfig{'scantron'}) eq 'HASH') {
+         if (ref($domconfig{'scantron'}{'config'}) eq 'HASH') {
+             if (keys(%{$domconfig{'scantron'}{'config'}}) > 1) {
+                 if (($domconfig{'scantron'}{'config'}{'dat'}) &&
+                     (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH')) {
+                     if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
+                         if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}})) {
+                             my ($onclick,$formatextra,$singleline);
+                             my @lines = &Apache::lonnet::get_scantronformat_file();
+                             my $count = 0;
+                             foreach my $line (@lines) {
+                                 next if ($line =~ /^#/);
+                                 $singleline = $line;
+                                 $count ++;
+                             }
+                             if ($count > 1) {
+                                 $formatextra = '<div style="display:none" id="bubbletype">'.
+                                                '<span class="LC_nobreak">'.
+                                                &mt('Bubblesheet type:').'&nbsp;'.
+                                                &scantron_scantab().'</span></div>';
+                                 $onclick = ' onclick="toggleScantab(this.form);"';
+                                 $formatjs = <<"END";
+ function toggleScantab(form) {
+     var divid = 'bubbletype';
+     if (document.getElementById(divid)) {
+         var radioname = 'fileformat';
+         var num = form.elements[radioname].length;
+         if (num) {
+             for (var i=0; i<num; i++) {
+                 if (form.elements[radioname][i].checked) {
+                     var chosen = form.elements[radioname][i].value;
+                     if (chosen == 'dat') {
+                         document.getElementById(divid).style.display = 'none';
+                     } else if (chosen == 'csv') {
+                         document.getElementById(divid).style.display = 'block';
+                     }
+                 }
+             }
+         }
+     }
+     return;
+ }
+ END
+                             } elsif ($count == 1) {
+                                 my $formatname = (split(/:/,$singleline,2))[0];
+                                 $formatextra = '<input type="hidden" name="scantron_format" value="'.$formatname.'" />';
+                             }
+                             $formattitle = &mt('File format');
+                             $formatoptions = '<label><input name="fileformat" type="radio" value="dat" checked="checked"'.$onclick.' />'.
+                                              &mt('Plain Text (no delimiters)').
+                                              '</label>'.('&nbsp;'x2).
+                                              '<label><input name="fileformat" type="radio" value="csv"'.$onclick.' />'.
+                                              &mt('Comma separated values').'</label>'.$formatextra;
+                         }
+                     }
+                 }
+             } elsif (keys(%{$domconfig{'scantron'}{'config'}}) == 1) {
+                 if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
+                     if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}})) {
+                         $formattitle = &mt('Bubblesheet type');
+                         $formatoptions = &scantron_scantab();
+                     }
+                 }
+             }
+         }
+     }
+     return ($formatoptions,$formattitle,$formatjs);
+ }
+ sub scantron_upload_scantron_data_save {
+     my ($r,$symb) = @_;
+     my $doanotherupload=
+ 	'<br /><form action="/adm/grades" method="post">'."\n".
+ 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
+ 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
+ 	'</form>'."\n";
+     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
+ 	!&Apache::lonnet::allowed('usc',
+ 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
+ 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
+ 	unless ($symb) {
+ 	    $r->print($doanotherupload);
+ 	}
+ 	return '';
+     }
+     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
+     my $uploadedfile;
+     $r->print('<p>'.&mt('Uploading file to [_1]','"'.$coursedata{'description'}.'"').'</p>');
+     if (length($env{'form.upfile'}) < 2) {
+         $r->print(
+             &Apache::lonhtmlcommon::confirm_success(
+                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1));
+     } else {
+         my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$env{'form.domainid'});
+         my $parser;
+         if (ref($domconfig{'scantron'}) eq 'HASH') {
+             if (ref($domconfig{'scantron'}{'config'}) eq 'HASH') {
+                 my $is_csv;
+                 my @possibles = keys(%{$domconfig{'scantron'}{'config'}});
+                 if (@possibles > 1) {
+                     if ($env{'form.fileformat'} eq 'csv') {
+                         if (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH') {
+                             if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
+                                 if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}}) > 1) {
+                                     $is_csv = 1;
+                                 }
+                             }
+                         }
+                     }
+                 } elsif (@possibles == 1) {
+                     if (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH') {
+                         if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
+                             if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}}) > 1) {
+                                 $is_csv = 1;
+                             }
+                         }
+                     }
+                 }
+                 if ($is_csv) {
+                    $parser = $domconfig{'scantron'}{'config'}{'csv'};
+                 }
+             }
+         }
+         my $result =
+             &Apache::lonnet::userfileupload('upfile','scantron','scantron',$parser,'','',
+                                             $env{'form.courseid'},$env{'form.domainid'});
+         if ($result =~ m{^/uploaded/}) {
+             $r->print(
+                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
+                 &mt('Uploaded [_1] bytes of data into location: [_2]',
+                         (length($env{'form.upfile'})-1),
+                         '<span class="LC_filename">'.$result.'</span>'));
+             ($uploadedfile) = ($result =~ m{/([^/]+)$});
+             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
+                                                        $env{'form.courseid'},$uploadedfile));
+         } else {
+             $r->print(
+                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
+                     &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
+                           $result,
+ 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
+ 	}
+     }
+     if ($symb) {
+ 	$r->print(&scantron_selectphase($r,$uploadedfile,$symb));
+     } else {
+ 	$r->print($doanotherupload);
+     }
+     return '';
+ }
+ sub validate_uploaded_scantron_file {
+     my ($cdom,$cname,$fname) = @_;
+     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
+     my @lines;
+     if ($scanlines ne '-1') {
+         @lines=split("\n",$scanlines,-1);
+     }
+     my $output;
+     if (@lines) {
+         my (%counts,$max_match_format);
+         my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
+         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
+         my %idmap = &username_to_idmap($classlist);
+         foreach my $key (keys(%idmap)) {
+             my $lckey = lc($key);
+             $idmap{$lckey} = $idmap{$key};
+         }
+         my %unique_formats;
+         my @formatlines = &Apache::lonnet::get_scantronformat_file();
+         foreach my $line (@formatlines) {
+             chomp($line);
+             my @config = split(/:/,$line);
+             my $idstart = $config[5];
+             my $idlength = $config[6];
+             if (($idstart ne '') && ($idlength > 0)) {
+                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
+                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]);
+                 } else {
+                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
+                 }
+             }
+         }
+         foreach my $key (keys(%unique_formats)) {
+             my ($idstart,$idlength) = split(':',$key);
+             %{$counts{$key}} = (
+                                'found'   => 0,
+                                'total'   => 0,
+                               );
+             foreach my $line (@lines) {
+                 next if ($line =~ /^#/);
+                 next if ($line =~ /^[\s\cz]*$/);
+                 my $id = substr($line,$idstart-1,$idlength);
+                 $id = lc($id);
+                 if (exists($idmap{$id})) {
+                     $counts{$key}{'found'} ++;
+                 }
+                 $counts{$key}{'total'} ++;
+             }
+             if ($counts{$key}{'total'}) {
+                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
+                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
+                     $max_match_pct = $percent_match;
+                     $max_match_format = $key;
+                     $found_match_count = $counts{$key}{'found'};
+                     $max_match_count = $counts{$key}{'total'};
+                 }
+             }
+         }
+         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
+             my $format_descs;
+             my $numwithformat = @{$unique_formats{$max_match_format}};
+             for (my $i=0; $i<$numwithformat; $i++) {
+                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
+                 if ($i<$numwithformat-2) {
+                     $format_descs .= '"<i>'.$desc.'</i>", ';
+                 } elsif ($i==$numwithformat-2) {
+                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
+                 } elsif ($i==$numwithformat-1) {
+                     $format_descs .= '"<i>'.$desc.'</i>"';
+                 }
+             }
+             my $showpct = sprintf("%.0f",$max_match_pct).'%';
+             $output .= '<br />';
+             if ($found_match_count == $max_match_count) {
+                 # 100% matching entries
+                 $output .= &Apache::lonhtmlcommon::confirm_success(
+                      &mt('Comparison of student IDs: [_1] matching ([quant,_2,entry,entries])',
+                             '<b>'.$showpct.'</b>',$found_match_count)).'<br />'.
+                 &mt('Comparison of student IDs in the uploaded file with'.
+                     ' the course roster found matches for [_1] of the [_2] entries'.
+                     ' in the file (for the format defined for [_3]).',
+                         '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs);
+             } else {
+                 # Not all entries matching? -> Show warning and additional info
+                 $output .=
+                     &Apache::lonhtmlcommon::confirm_success(
+                         &mt('Comparison of student IDs: [_1] matching ([_2]/[quant,_3,entry,entries])',
+                                 '<b>'.$showpct.'</b>',$found_match_count,$max_match_count).'<br />'.
+                         &mt('Not all entries could be matched!'),1).'<br />'.
+                     &mt('Comparison of student IDs in the uploaded file with'.
+                         ' the course roster found matches for [_1] of the [_2] entries'.
+                         ' in the file (for the format defined for [_3]).',
+                             '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
+                     '<p class="LC_info">'.
+                     &mt('A low percentage of matches results from one of the following:').
+                     '</p><ul>'.
+                     '<li>'.&mt('The file was uploaded to the wrong course.').'</li>'.
+                     '<li>'.&mt('The data is not in the format expected for the domain: [_1]',
+                                '<i>'.$cdom.'</i>').'</li>'.
+                     '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
+                     '<li>'.&mt('The course roster is not up to date.').'</li>'.
+                     '</ul>';
+             }
+         }
+     } else {
+         $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
+     }
+     return $output;
+ }
+ sub valid_file {
+     my ($requested_file)=@_;
+     foreach my $filename (sort(&scantron_filenames())) {
+ 	if ($requested_file eq $filename) { return 1; }
+     }
+     return 0;
+ }
+ sub scantron_download_scantron_data {
+     my ($r,$symb) = @_;
+     my $default_form_data=&defaultFormData($symb);
+     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my $file=$env{'form.scantron_selectfile'};
+     if (! &valid_file($file)) {
+ 	$r->print('
+ 	<p>
+ 	    '.&mt('The requested filename was invalid.').'
+         </p>
+ ');
+ 	return;
+     }
+     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
+     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
+     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
+     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
+     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
+     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
+     $r->print('
+     <p>
+ 	'.&mt('[_1]Original[_2] file as uploaded by the bubblesheet scanning office.',
+ 	      '<a href="'.$orig.'">','</a>').'
+     </p>
+     <p>
+ 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
+ 	      '<a href="'.$corrected.'">','</a>').'
+     </p>
+     <p>
+ 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
+ 	      '<a href="'.$skipped.'">','</a>').'
+     </p>
+ ');
+     return '';
+ }
+ sub checkscantron_results {
+     my ($r,$symb) = @_;
+     if (!$symb) {return '';}
+     my $cid = $env{'request.course.id'};
+     my %lettdig = &Apache::lonnet::letter_to_digits();
+     my $numletts = scalar(keys(%lettdig));
+     my $cnum = $env{'course.'.$cid.'.num'};
+     my $cdom = $env{'course.'.$cid.'.domain'};
+     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
+     my %record;
+     my %scantron_config =
+         &Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
+     my $classlist=&Apache::loncoursedata::get_classlist();
+     my %idmap=&Apache::grades::username_to_idmap($classlist);
+     my $navmap=Apache::lonnavmaps::navmap->new();
+     unless (ref($navmap)) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     my $map=$navmap->getResourceByUrl($sequence);
+     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+         %grader_randomlists_by_symb,%orderedforcode);
+     if (ref($map)) {
+         $randomorder=$map->randomorder();
+         $randompick=$map->randompick();
+     }
+     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+     my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                             \%grader_randomlists_by_symb,$bubbles_per_row);
+     my ($uname,$udom);
+     my (%scandata,%lastname,%bylast);
+     $r->print('
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
+     my @delayqueue;
+     my %completedstudents;
+     my $count=&get_todo_count($scanlines,$scan_data);
+     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
+     my ($username,$domain,$started);
+     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
+     if ($nav_error) {
+         $r->print(&navmap_errormsg());
+         return '';
+     }
+     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
+     my $start=&Time::HiRes::time();
+     my $i=-1;
+     while ($i<$scanlines->{'count'}) {
+         ($username,$domain,$uname)=('','','');
+         $i++;
+         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
+         if ($line=~/^[\s\cz]*$/) { next; }
+         if ($started) {
+             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
+         }
+         $started=1;
+         my $scan_record=
+             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
+                                                      $scan_data);
+         unless ($uname=&scantron_find_student($scan_record,$scan_data,
+                                               \%idmap,$i)) {
+             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
+                                 'Unable to find a student that matches',1);
+             next;
+         }
+         if (exists $completedstudents{$uname}) {
+             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
+                                 'Student '.$uname.' has multiple sheets',2);
+             next;
+         }
+         my $pid = $scan_record->{'scantron.ID'};
+         $lastname{$pid} = $scan_record->{'scantron.LastName'};
+         push(@{$bylast{$lastname{$pid}}},$pid);
+         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
+         my $user = $uname.':'.$usec;
+         ($username,$domain)=split(/:/,$uname);
+         my $scancode;
+         if ((exists($scan_record->{'scantron.CODE'})) &&
+             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
+             $scancode = $scan_record->{'scantron.CODE'};
+         } else {
+             $scancode = '';
+         }
+         my @mapresources = @resources;
+         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+         my %respnumlookup=();
+         my %startline=();
+         if ($randomorder || $randompick) {
+             @mapresources =
+                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                              \%orderedforcode);
+             my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
+                                              $scan_record,\@master_seq,\%symb_to_resource,
+                                              \%grader_partids_by_symb,\%orderedforcode,
+                                              \%respnumlookup,\%startline);
+             if ($randompick && $total) {
+                 $lastpos = $total*$scantron_config{'Qlength'};
+             }
+         }
+         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
+         chomp($scandata{$pid});
+         $scandata{$pid} =~ s/\r$//;
+         my $counter = -1;
+         foreach my $resource (@mapresources) {
+             my $parts;
+             my $ressymb = $resource->symb();
+             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
+                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
+                 my $currcode;
+                 if (exists($grader_randomlists_by_symb{$ressymb})) {
+                     $currcode = $scancode;
+                 }
+                 (my $analysis,$parts) =
+                     &scantron_partids_tograde($resource,$env{'request.course.id'},
+                                               $username,$domain,undef,
+                                               $bubbles_per_row,$currcode);
+             } else {
+                 $parts = $grader_partids_by_symb{$ressymb};
+             }
+             ($counter,my $recording) =
+                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
+                                          $scandata{$pid},$parts,
+                                          \%scantron_config,\%lettdig,$numletts,
+                                          $randomorder,$randompick,
+                                          \%respnumlookup,\%startline);
+             $record{$pid} .= $recording;
+         }
+     }
+     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+     $r->print('<br />');
+     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
+     $passed = 0;
+     $failed = 0;
+     $numstudents = 0;
+     foreach my $last (sort(keys(%bylast))) {
+         if (ref($bylast{$last}) eq 'ARRAY') {
+             foreach my $pid (sort(@{$bylast{$last}})) {
+                 my $showscandata = $scandata{$pid};
+                 my $showrecord = $record{$pid};
+                 $showscandata =~ s/\s/&nbsp;/g;
+                 $showrecord =~ s/\s/&nbsp;/g;
+                 if ($scandata{$pid} eq $record{$pid}) {
+                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
+                     $okstudents .= '<tr class="'.$css_class.'">'.
+ '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
+ '</tr>'."\n".
+ '<tr class="'.$css_class.'">'."\n".
+ '<td>'.&mt('Submissions').'</td><td>'.$showrecord.'</td></tr>'."\n";
+                     $passed ++;
+                 } else {
+                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
+                     $badstudents .= '<tr class="'.$css_class.'"><td>'.&mt('Bubblesheet').'</td><td><span class="LC_nobreak">'.$scandata{$pid}.'</span></td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
+ '</tr>'."\n".
+ '<tr class="'.$css_class.'">'."\n".
+ '<td>'.&mt('Submissions').'</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
+ '</tr>'."\n";
+                     $failed ++;
+                 }
+                 $numstudents ++;
+             }
+         }
+     }
+     $r->print(
+         '<p>'
+        .&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for [_1][quant,_2,student][_3] ([quant,_4,bubblesheet line] per student).',
+             '<b>',
+             $numstudents,
+             '</b>',
+             $env{'form.scantron_maxbubble'})
+        .'</p>'
+     );
+     $r->print('<p>'
+              .&mt('Exact matches for [_1][quant,_2,student][_3].','<b>',$passed,'</b>')
+              .'<br />'
+              .&mt('Discrepancies detected for [_1][quant,_2,student][_3].','<b>',$failed,'</b>')
+              .'</p>'
+     );
+     if ($passed) {
+         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
+         $r->print(&Apache::loncommon::start_data_table()."\n".
+                  &Apache::loncommon::start_data_table_header_row()."\n".
+                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
+                  &Apache::loncommon::end_data_table_header_row()."\n".
+                  $okstudents."\n".
+                  &Apache::loncommon::end_data_table().'<br />');
+     }
+     if ($failed) {
+         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
+         $r->print(&Apache::loncommon::start_data_table()."\n".
+                  &Apache::loncommon::start_data_table_header_row()."\n".
+                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
+                  &Apache::loncommon::end_data_table_header_row()."\n".
+                  $badstudents."\n".
+                  &Apache::loncommon::end_data_table()).'<br />'.
+                  &mt('Differences can occur if submissions were modified using manual grading after a bubblesheet grading pass.').'<br />'.&mt('If unexpected discrepancies were detected, it is recommended that you inspect the original bubblesheets.');
+     }
+     $r->print('</form><br />');
+     return;
  }
+ sub verify_scantron_grading {
+     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
+         $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
+         $respnumlookup,$startline) = @_;
+     my ($record,%expected,%startpos);
+     return ($counter,$record) if (!ref($resource));
+     return ($counter,$record) if (!$resource->is_problem());
+     my $symb = $resource->symb();
+     return ($counter,$record) if (ref($partids) ne 'ARRAY');
+     foreach my $part_id (@{$partids}) {
+         $counter ++;
+         $expected{$part_id} = 0;
+         my $respnum = $counter;
+         if ($randomorder || $randompick) {
+             $respnum = $respnumlookup->{$counter};
+             $startpos{$part_id} = $startline->{$counter} + 1;
+         } else {
+             $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
+         }
+         if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
+             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
+             foreach my $item (@sub_lines) {
+                 $expected{$part_id} += $item;
+             }
+         } else {
+             $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
+         }
+     }
+     if ($symb) {
+         my %recorded;
+         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
+         if ($returnhash{'version'}) {
+             my %lasthash=();
+             my $version;
+             for ($version=1;$version<=$returnhash{'version'};$version++) {
+                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
+                     $lasthash{$key}=$returnhash{$version.':'.$key};
+                 }
+             }
+             foreach my $key (keys(%lasthash)) {
+                 if ($key =~ /\.scantron$/) {
+                     my $value = &unescape($lasthash{$key});
+                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
+                     if ($value eq '') {
+                         for (my $i=0; $i<$expected{$part_id}; $i++) {
+                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
+                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
+                             }
+                         }
+                     } else {
+                         my @tocheck;
+                         my @items = split(//,$value);
+                         if (($scantron_config->{'Qon'} eq 'letter') ||
+                             ($scantron_config->{'Qon'} eq 'number')) {
+                             if (@items < $expected{$part_id}) {
+                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
+                                 my @singles = split(//,$fragment);
+                                 foreach my $pos (@singles) {
+                                     if ($pos eq ' ') {
+                                         push(@tocheck,$pos);
+                                     } else {
+                                         my $next = shift(@items);
+                                         push(@tocheck,$next);
+                                     }
+                                 }
+                             } else {
+                                 @tocheck = @items;
+                             }
+                             foreach my $letter (@tocheck) {
+                                 if ($scantron_config->{'Qon'} eq 'letter') {
+                                     if ($letter !~ /^[A-J]$/) {
+                                         $letter = $scantron_config->{'Qoff'};
+                                     }
+                                     $recorded{$part_id} .= $letter;
+                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
+                                     my $digit;
+                                     if ($letter !~ /^[A-J]$/) {
+                                         $digit = $scantron_config->{'Qoff'};
+                                     } else {
+                                         $digit = $lettdig->{$letter};
+                                     }
+                                     $recorded{$part_id} .= $digit;
+                                 }
+                             }
+                         } else {
+                             @tocheck = @items;
+                             for (my $i=0; $i<$expected{$part_id}; $i++) {
+                                 my $curr_sub = shift(@tocheck);
+                                 my $digit;
+                                 if ($curr_sub =~ /^[A-J]$/) {
+                                     $digit = $lettdig->{$curr_sub}-1;
+                                 }
+                                 if ($curr_sub eq 'J') {
+                                     $digit += scalar($numletts);
+                                 }
+                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
+                                     if ($j == $digit) {
+                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
+                                     } else {
+                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
+                                     }
+                                 }
+                             }
+                         }
+                     }
+                 }
+             }
+         }
+         foreach my $part_id (@{$partids}) {
+             if ($recorded{$part_id} eq '') {
+                 for (my $i=0; $i<$expected{$part_id}; $i++) {
+                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
+                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
+                     }
+                 }
+             }
+             $record .= $recorded{$part_id};
+         }
+     }
+     return ($counter,$record);
+ }
  #-------- end of section for handling grading scantron forms -------
  #
  #-------------------------------------------------------------------
  #-------------------------- Menu interface -------------------------
  #
- #--- Show a Grading Menu button - Calls the next routine ---
+ #--- Href with symb and command ---
- sub show_grading_menu_form {
-     my ($symb,$url)=@_;
+ sub href_symb_cmd {
-     my $result.='<form action="/adm/grades" method="post">'."\n".
+     my ($symb,$cmd)=@_;
- 	'<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
+     return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
- 	'<input type="hidden" name="url" value="'.$url.'" />'."\n".
+ }
- 	'<input type="hidden" name="saveState"  value="'.$ENV{'form.saveState'}.'" />'."\n".
- 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
+ sub grading_menu {
- 	'<input type="submit" name="submit" value="Grading Menu" />'."\n".
+     my ($request,$symb) = @_;
- 	'</form>'."\n";
+     if (!$symb) {return '';}
+     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
+                   'command'=>'individual');
+     my $url1a = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'}='ungraded';
+     my $url1b=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'}='table';
+     my $url1c=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'}='all_for_one';
+     my $url1d=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'}='downloadfilesselect';
+     my $url1e=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'} = 'csvform';
+     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'} = 'processclicker';
+     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'} = 'scantron_selectphase';
+     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     $fields{'command'} = 'initialverifyreceipt';
+     my $url5 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+     my @menu = ({	categorytitle=>'Hand Grading',
+             items =>[
+                         {	linktext => 'Select individual students to grade',
+                     		url => $url1a,
+                     		permission => 'F',
+                     		icon => 'grade_students.png',
+                     		linktitle => 'Grade current resource for a selection of students.'
+                         },
+                         {       linktext => 'Grade ungraded submissions',
+                                 url => $url1b,
+                                 permission => 'F',
+                                 icon => 'ungrade_sub.png',
+                                 linktitle => 'Grade all submissions that have not been graded yet.'
+                         },
+                         {       linktext => 'Grading table',
+                                 url => $url1c,
+                                 permission => 'F',
+                                 icon => 'grading_table.png',
+                                 linktitle => 'Grade current resource for all students.'
+                         },
+                         {       linktext => 'Grade page/folder for one student',
+                                 url => $url1d,
+                                 permission => 'F',
+                                 icon => 'grade_PageFolder.png',
+                                 linktitle => 'Grade all resources in current page/sequence/folder for one student.'
+                         },
+                         {       linktext => 'Download submissions',
+                                 url => $url1e,
+                                 permission => 'F',
+                                 icon => 'download_sub.png',
+                                 linktitle => 'Download all students submissions.'
+                         }]},
+                          { categorytitle=>'Automated Grading',
+                items =>[
+                 	    {	linktext => 'Upload Scores',
+                     		url => $url2,
+                     		permission => 'F',
+                     		icon => 'uploadscores.png',
+                     		linktitle => 'Specify a file containing the class scores for current resource.'
+                 	    },
+                 	    {	linktext => 'Process Clicker',
+                     		url => $url3,
+                     		permission => 'F',
+                     		icon => 'addClickerInfoFile.png',
+                     		linktitle => 'Specify a file containing the clicker information for this resource.'
+                 	    },
+                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
+                     		url => $url4,
+                     		permission => 'F',
+                     		icon => 'bubblesheet.png',
+                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
+                 	    },
+                             {   linktext => 'Verify Receipt Number',
+                                 url => $url5,
+                                 permission => 'F',
+                                 icon => 'receipt_number.png',
+                                 linktitle => 'Verify a system-generated receipt number for correct problem solution.'
+                             }
+                     ]
+             });
+     # Create the menu
+     my $Str;
+     $Str .= '<form method="post" action="" name="gradingMenu">';
+     $Str .= '<input type="hidden" name="command" value="" />'.
+     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+     $Str .= &Apache::lonhtmlcommon::generate_menu(@menu);
+     return $Str;
+ }
+ sub ungraded {
+     my ($request)=@_;
+     &submit_options($request);
+ }
+ sub submit_options_sequence {
+     my ($request,$symb) = @_;
+     if (!$symb) {return '';}
+     &commonJSfunctions($request);
+     my $result;
+     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
+         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+     $result.=&selectfield(0).
+             '<input type="hidden" name="command" value="pickStudentPage" />
+             <div>
+               <input type="submit" value="'.&mt('Next').' &rarr;" />
+             </div>
+         </div>
+   </form>';
      return $result;
  }
- # -- Retrieve choices for grading form
+ sub submit_options_table {
- sub savedState {
+     my ($request,$symb) = @_;
-     my %savedState = ();
-     if ($ENV{'form.saveState'}) {
- 	foreach (split(/:/,$ENV{'form.saveState'})) {
- 	    my ($key,$value) = split(/=/,$_,2);
- 	    $savedState{$key} = $value;
- 	}
-     }
-     return \%savedState;
- }
- #--- Displays the main menu page -------
- sub gradingmenu {
-     my ($request) = @_;
-     my ($symb,$url)=&get_symb_and_url($request);
      if (!$symb) {return '';}
-     my $probTitle = &Apache::lonnet::gettitle($symb);
+     &commonJSfunctions($request);
+     my $is_tool = ($symb =~ /ext\.tool$/);
+     my $result;
-     $request->print(<<GRADINGMENUJS);
+     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
- <script type="text/javascript" language="javascript">
+         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
-     function checkChoice(formname,val,cmdx) {
- 	if (val <= 2) {
- 	    var cmd = radioSelection(formname.radioChoice);
- 	    var cmdsave = cmd;
- 	} else {
- 	    cmd = cmdx;
- 	    cmdsave = 'submission';
- 	}
- 	formname.command.value = cmd;
- 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
- 	    ":saveSub="+radioSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
- 	if (val < 5) formname.submit();
- 	if (val == 5) {
- 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
- 	    formname.submit();
- 	}
-     }
-     function checkReceiptNo(formname,nospace) {
+     $result.=&selectfield(1,$is_tool).
- 	var receiptNo = formname.receipt.value;
+             '<input type="hidden" name="command" value="viewgrades" />
- 	var checkOpt = false;
+             <div>
- 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
+               <input type="submit" value="'.&mt('Next').' &rarr;" />
- 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
+             </div>
- 	if (checkOpt) {
+         </div>
- 	    alert("Please enter a receipt number given by a student in the receipt box.");
+   </form>';
- 	    formname.receipt.value = "";
+     return $result;
- 	    formname.receipt.focus();
+ }
- 	    return false;
- 	}
+ sub submit_options_download {
- 	return true;
+     my ($request,$symb) = @_;
-     }
+     if (!$symb) {return '';}
- </script>
- GRADINGMENUJS
+     my $is_tool = ($symb =~ /ext\.tool$/);
      &commonJSfunctions($request);
-     my $result='<h3>&nbsp;<font color="#339933">Manual Grading/View Submission</font></h3>';
-     my ($table,$resptype,$hdgrade) = &showResourceInfo($url,$probTitle);
+     my $result='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
-     $result.=$table;
+         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
-     my (undef,$sections) = &getclasslist('all','0');
+     $result.='
-     my $savedState = &savedState();
+ <h2>
-     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
+   '.&mt('Select Students for whom to Download Submissions').'
-     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
+ </h2>'.&selectfield(1,$is_tool).'
-     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
+                 <input type="hidden" name="command" value="downloadfileslink" />
-     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
+               <input type="submit" value="'.&mt('Next').' &rarr;" />
+             </div>
+           </div>
+   </form>';
+     return $result;
+ }
+ #--- Displays the submissions first page -------
+ sub submit_options {
+     my ($request,$symb) = @_;
+     if (!$symb) {return '';}
+     my $is_tool = ($symb =~ /ext\.tool$/);
+     &commonJSfunctions($request);
+     my $result;
      $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
- 	'<input type="hidden" name="symb"        value="'.$symb.'" />'."\n".
+ 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
- 	'<input type="hidden" name="url"         value="'.$url.'" />'."\n".
+     $result.=&selectfield(1,$is_tool).'
- 	'<input type="hidden" name="response"    value="'.$resptype.'" />'."\n".
+                 <input type="hidden" name="command" value="submission" />
- 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
+ 	      <input type="submit" value="'.&mt('Next').' &rarr;" />
- 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
+             </div>
- 	'<input type="hidden" name="command"     value="" />'."\n".
+           </div>
- 	'<input type="hidden" name="saveState"   value="" />'."\n".
+   </form>';
- 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
+     return $result;
+ }
-     $result.='<table width="100%" border=0><tr><td bgcolor=#777777>'."\n".
- 	'<table width=100% border=0><tr bgcolor="#e6ffff"><td colspan="2">'."\n".
- 	'&nbsp;<b>Select a Grading/Viewing Option</b></td></tr>'."\n".
- 	'<tr bgcolor="#ffffe6" valign="top"><td>'."\n";
-     $result.='<table width="100%" border=0>';
-     $result.='<tr bgcolor="#ffffe6" valign="top"><td>'."\n".
- 	'&nbsp;Select Section: <select name="section">'."\n";
-     if (ref($sections)) {
- 	foreach (sort (@$sections)) {$result.='<option value="'.$_.'" '.
- 					 ($saveSec eq $_ ? 'selected="on"' : '').'>'.$_.'</option>'."\n";}
-     }
-     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="on"' : ''). '>all</select> &nbsp; ';
-     $result.='Student Status:</b>'.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,1,undef);
-     if (ref($sections)) {
- 	$result.='&nbsp;(Section "no" implies the students were not assigned a section.)<br />'
- 	    if (grep /no/,@$sections);
-     }
-     $result.='</td></tr>';
-     $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
- 	'<input type="radio" name="radioChoice" value="submission" '.
- 	($saveCmd eq 'submission' ? 'checked' : '').'> '.'<b>Current Resource:</b> For one or more students'.
- 	'<br />&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;-->For students with '.
- 	'<input type="radio" name="submitonly" value="yes" '.
- 	($saveSub eq 'yes' ? 'checked' : '').' /> submissions or '.
- 	'<input type="radio" name="submitonly" value="all" '.
- 	($saveSub eq 'all' ? 'checked' : '').' /> for all</td></tr>'."\n";
-     $result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
- 	'<input type="radio" name="radioChoice" value="viewgrades" '.
- 	($saveCmd eq 'viewgrades' ? 'checked' : '').'> '.
- 	'<b>Current Resource:</b> For all students in selected section or course</td></tr>'."\n";
-     $result.='<tr bgcolor="#ffffe6" valign="top"><td>'.
- 	'<input type="radio" name="radioChoice" value="pickStudentPage" '.
- 	($saveCmd eq 'pickStudentPage' ? 'checked' : '').'> '.
- 	'The <b>complete</b> set/page/sequence: For one student</td></tr>'."\n";
-     $result.='<tr bgcolor="#ffffe6"><td><br />'.
- 	'<input type="button" onClick="javascript:checkChoice(this.form,\'2\');" value="View/Grade/Regrade" />'.
- 	'</td></tr></table>'."\n";
-     $result.='</td><td valign="top">';
-     $result.='<table width="100%" border=0>';
-     $result.='<tr bgcolor="#ffffe6"><td>'.
- 	'<input type="button" onClick="javascript:checkChoice(this.form,\'3\',\'csvform\');" value="Upload" />'.
- 	' scores from file </td></tr>'."\n";
-     $result.='<tr bgcolor="#ffffe6"valign="top"><td colspan="2">'.
- 	'<input type="button" onClick="javascript:checkChoice(this.form,\'4\',\'scantron_selectphase\');'.
- 	'" value="Grade" /> scantron forms</td></tr>'."\n";
-     if ((&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) && ($symb)) {
- 	$result.='<tr bgcolor="#ffffe6"valign="top"><td>'.
- 	    '<input type="button" onClick="javascript:checkChoice(this.form,\'5\',\'verify\');" value="Verify" />'.
- 	    ' submission Receipt no: '.unpack("%32C*",$Apache::lonnet::perlvar{'lonHostID'}).
- 	    '-<input type="text" name="receipt" size="4" onChange="javascript:checkReceiptNo(this.form,\'OK\')">'.
- 	    '</td></tr>'."\n";
-     }
-     $result.='</form></td></tr></table>'."\n".
+ sub selectfield {
- 	'</td></tr></table>'."\n".
+    my ($full,$is_tool)=@_;
- 	'</td></tr></table>'."\n";
+    my %options;
+    if ($is_tool) {
+        %options =
+            (&transtatus_options,
+             'select_form_order' => ['yes','incorrect','all']);
+    } else {
+        %options =
+            (&substatus_options,
+             'select_form_order' => ['yes','queued','graded','incorrect','all']);
+    }
+    my $result='<div class="LC_columnSection">
+     <fieldset>
+       <legend>
+        '.&mt('Sections').'
+       </legend>
+       '.&Apache::lonstatistics::SectionSelect('section','multiple',5).'
+     </fieldset>
+     <fieldset>
+       <legend>
+         '.&mt('Groups').'
+       </legend>
+       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
+     </fieldset>
+     <fieldset>
+       <legend>
+         '.&mt('Access Status').'
+       </legend>
+       '.&Apache::lonhtmlcommon::StatusOptions(undef,undef,5,undef,'mult').'
+     </fieldset>';
+     if ($full) {
+         my $heading = &mt('Submission Status');
+         if ($is_tool) {
+             $heading = &mt('Transaction Status');
+         }
+         $result.='
+     <fieldset>
+       <legend>
+         '.$heading.'
+       </legend>'.
+        &Apache::loncommon::select_form('all','submitonly',\%options).
+    '</fieldset>';
+     }
+     $result.='</div><br />';
      return $result;
  }
- sub handler {
+ sub substatus_options {
-     my $request=$_[0];
+     return &Apache::lonlocal::texthash(
+                                       'yes'       => 'with submissions',
+                                       'queued'    => 'in grading queue',
+                                       'graded'    => 'with ungraded submissions',
+                                       'incorrect' => 'with incorrect submissions',
+                                       'all'       => 'with any status',
+                                       );
+ }
+ sub transtatus_options {
+     return &Apache::lonlocal::texthash(
+                                        'yes'       => 'with score transactions',
+                                        'incorrect' => 'with less than full credit',
+                                        'all'       => 'with any status',
+                                       );
+ }
+ sub reset_perm {
      undef(%perm);
-     if ($ENV{'browser.mathml'}) {
+ }
- 	$request->content_type('text/xml');
-     } else {
+ sub init_perm {
- 	$request->content_type('text/html');
+     &reset_perm();
-     }
+     foreach my $test_perm ('vgr','mgr','opa') {
-     $request->send_http_header;
-     return '' if $request->header_only;
+ 	my $scope = $env{'request.course.id'};
-     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
+ 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
-     my $url=$ENV{'form.url'};
-     my $symb=$ENV{'form.symb'};
+ 	    $scope .= '/'.$env{'request.course.sec'};
-     my $command=$ENV{'form.command'};
+ 	    if ( $perm{$test_perm}=
-     if (!$url) {
+ 		 &Apache::lonnet::allowed($test_perm,$scope)) {
- 	my ($temp1,$temp2);
+ 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
- 	($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
- 	$url = $ENV{'form.url'};
-     }
-     &send_header($request);
-     if ($url eq '' && $symb eq '') {
- 	if ($ENV{'user.adv'}) {
- 	    if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
- 		($ENV{'form.codethree'})) {
- 		my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
- 		    $ENV{'form.codethree'};
- 		my ($tsymb,$tuname,$tudom,$tcrsid)=
- 		    &Apache::lonnet::checkin($token);
- 		if ($tsymb) {
- 		    my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
- 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
- 			$request->print(&Apache::lonnet::ssi_body('/res/'.$url,
- 					  ('grade_username' => $tuname,
- 					   'grade_domain' => $tudom,
- 					   'grade_courseid' => $tcrsid,
- 					   'grade_symb' => $tsymb)));
- 		    } else {
- 			$request->print('<h3>Not authorized: '.$token.'</h3>');
- 		    }
- 		} else {
- 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
- 		}
  	    } else {
- 		$request->print(&Apache::lonxml::tokeninputfield());
+ 		delete($perm{$test_perm});
  	    }
  	}
+     }
+ }
+ sub init_old_essays {
+     my ($symb,$apath,$adom,$aname) = @_;
+     if ($symb ne '') {
+         my %essays = &Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
+         if (keys(%essays) > 0) {
+             $old_essays{$symb} = \%essays;
+         }
+     }
+     return;
+ }
+ sub reset_old_essays {
+     undef(%old_essays);
+ }
+ sub gather_clicker_ids {
+     my %clicker_ids;
+     my $classlist = &Apache::loncoursedata::get_classlist();
+     # Set up a couple variables.
+     my $username_idx = &Apache::loncoursedata::CL_SNAME();
+     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
+     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
+     foreach my $student (keys(%$classlist)) {
+         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
+         my $username = $classlist->{$student}->[$username_idx];
+         my $domain   = $classlist->{$student}->[$domain_idx];
+         my $clickers =
+ 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
+         foreach my $id (split(/\,/,$clickers)) {
+             $id=~s/^[\#0]+//;
+             $id=~s/[\-\:]//g;
+             if (exists($clicker_ids{$id})) {
+ 		$clicker_ids{$id}.=','.$username.':'.$domain;
+             } else {
+ 		$clicker_ids{$id}=$username.':'.$domain;
+             }
+         }
+     }
+     return %clicker_ids;
+ }
+ sub gather_adv_clicker_ids {
+     my %clicker_ids;
+     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
+     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
+     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
+     foreach my $element (sort(keys(%coursepersonnel))) {
+         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
+             my ($puname,$pudom)=split(/\:/,$person);
+             my $clickers =
+ 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
+             foreach my $id (split(/\,/,$clickers)) {
+ 		$id=~s/^[\#0]+//;
+                 $id=~s/[\-\:]//g;
+ 		if (exists($clicker_ids{$id})) {
+ 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
+ 		} else {
+ 		    $clicker_ids{$id}=$puname.':'.$pudom;
+ 		}
+             }
+         }
+     }
+     return %clicker_ids;
+ }
+ sub clicker_grading_parameters {
+     return ('gradingmechanism' => 'scalar',
+             'upfiletype' => 'scalar',
+             'specificid' => 'scalar',
+             'pcorrect' => 'scalar',
+             'pincorrect' => 'scalar');
+ }
+ sub process_clicker {
+     my ($r,$symb)=@_;
+     if (!$symb) {return '';}
+     my $result=&checkforfile_js();
+     $result.=&Apache::loncommon::start_data_table().
+              &Apache::loncommon::start_data_table_header_row().
+              '<th>'.&mt('Specify a file containing clicker information and set grading options.').'</th>'.
+              &Apache::loncommon::end_data_table_header_row().
+              &Apache::loncommon::start_data_table_row()."<td>\n";
+ # Attempt to restore parameters from last session, set defaults if not present
+     my %Saveable_Parameters=&clicker_grading_parameters();
+     &Apache::loncommon::restore_course_settings('grades_clicker',
+                                                  \%Saveable_Parameters);
+     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
+     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
+     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
+     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
+     my %checked;
+     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
+        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
+           $checked{$gradingmechanism}=' checked="checked"';
+        }
+     }
+     my $upload=&mt("Evaluate File");
+     my $type=&mt("Type");
+     my $attendance=&mt("Award points just for participation");
+     my $personnel=&mt("Correctness determined from response by course personnel");
+     my $specific=&mt("Correctness determined from response with clicker ID(s)");
+     my $given=&mt("Correctness determined from given list of answers").' '.
+               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
+     my $pcorrect=&mt("Percentage points for correct solution");
+     my $pincorrect=&mt("Percentage points for incorrect solution");
+     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
+ 						   {'iclicker' => 'i>clicker',
+                                                     'interwrite' => 'interwrite PRS',
+                                                     'turning' => 'Turning Technologies'});
+     $symb = &Apache::lonenc::check_encrypt($symb);
+     $result.= &Apache::lonhtmlcommon::scripttag(<<ENDUPFORM);
+ function sanitycheck() {
+ // Accept only integer percentages
+    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
+    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
+ // Find out grading choice
+    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
+       if (document.forms.gradesupload.gradingmechanism[i].checked) {
+          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
+       }
+    }
+ // By default, new choice equals user selection
+    newgradingchoice=gradingchoice;
+ // Not good to give more points for false answers than correct ones
+    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
+       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
+    }
+ // If new choice is attendance only, and old choice was correctness-based, restore defaults
+    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
+       document.forms.gradesupload.pcorrect.value=100;
+       document.forms.gradesupload.pincorrect.value=100;
+    }
+ // If the values are different, cannot be attendance only
+    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
+        (gradingchoice=='attendance')) {
+        newgradingchoice='personnel';
+    }
+ // Change grading choice to new one
+    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
+       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
+          document.forms.gradesupload.gradingmechanism[i].checked=true;
+       } else {
+          document.forms.gradesupload.gradingmechanism[i].checked=false;
+       }
+    }
+ // Remember the old state
+    document.forms.gradesupload.waschecked.value=newgradingchoice;
+ }
+ ENDUPFORM
+     $result.= <<ENDUPFORM;
+ <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
+ <input type="hidden" name="symb" value="$symb" />
+ <input type="hidden" name="command" value="processclickerfile" />
+ <input type="file" name="upfile" size="50" />
+ <br /><label>$type: $selectform</label>
+ ENDUPFORM
+     $result.='</td>'.&Apache::loncommon::end_data_table_row().
+                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDGRADINGFORM);
+       <label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
+ <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
+ <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
+ <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
+ <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
+ <br />&nbsp;&nbsp;&nbsp;
+ <input type="text" name="givenanswer" size="50" />
+ <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
+ ENDGRADINGFORM
+     $result.='</td>'.&Apache::loncommon::end_data_table_row().
+                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDPERCFORM);
+       <label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
+ <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
+ <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
+ </form>
+ ENDPERCFORM
+     $result.='</td>'.
+              &Apache::loncommon::end_data_table_row().
+              &Apache::loncommon::end_data_table();
+     return $result;
+ }
+ sub process_clicker_file {
+     my ($r,$symb) = @_;
+     if (!$symb) {return '';}
+     my %Saveable_Parameters=&clicker_grading_parameters();
+     &Apache::loncommon::store_course_settings('grades_clicker',
+                                               \%Saveable_Parameters);
+     my $result='';
+     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
+ 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
+ 	return $result;
+     }
+     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
+         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
+         return $result;
+     }
+     my $foundgiven=0;
+     if ($env{'form.gradingmechanism'} eq 'given') {
+         $env{'form.givenanswer'}=~s/^\s*//gs;
+         $env{'form.givenanswer'}=~s/\s*$//gs;
+         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
+         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
+         my @answers=split(/\,/,$env{'form.givenanswer'});
+         $foundgiven=$#answers+1;
+     }
+     my %clicker_ids=&gather_clicker_ids();
+     my %correct_ids;
+     if ($env{'form.gradingmechanism'} eq 'personnel') {
+ 	%correct_ids=&gather_adv_clicker_ids();
+     }
+     if ($env{'form.gradingmechanism'} eq 'specific') {
+ 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
+ 	   $correct_id=~tr/a-z/A-Z/;
+ 	   $correct_id=~s/\s//gs;
+ 	   $correct_id=~s/^[\#0]+//;
+            $correct_id=~s/[\-\:]//g;
+            if ($correct_id) {
+ 	      $correct_ids{$correct_id}='specified';
+            }
+         }
+     }
+     if ($env{'form.gradingmechanism'} eq 'attendance') {
+ 	$result.=&mt('Score based on attendance only');
+     } elsif ($env{'form.gradingmechanism'} eq 'given') {
+         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
      } else {
- 	if (!($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}))) {
+ 	my $number=0;
- 	    if ($perm{'vgr'}=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
+ 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
- 		$perm{'vgr_section'}=$ENV{'request.course.sec'};
+ 	foreach my $id (sort(keys(%correct_ids))) {
+ 	    $result.='<br /><tt>'.$id.'</tt> - ';
+ 	    if ($correct_ids{$id} eq 'specified') {
+ 		$result.=&mt('specified');
  	    } else {
- 		delete($perm{'vgr'});
+ 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
- 	    }
+ 		$result.=&Apache::loncommon::plainname($uname,$udom);
- 	}
- 	if (!($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'}))) {
- 	    if ($perm{'mgr'}=&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
- 		$perm{'mgr_section'}=$ENV{'request.course.sec'};
- 	    } else {
- 		delete($perm{'mgr'});
  	    }
+ 	    $number++;
  	}
+         $result.="</p>\n";
+         if ($number==0) {
+             $result .=
+                  &Apache::lonhtmlcommon::confirm_success(
+                      &mt('No IDs found to determine correct answer'),1);
+             return $result;
+         }
+     }
+     if (length($env{'form.upfile'}) < 2) {
+         $result .=
+             &Apache::lonhtmlcommon::confirm_success(
+                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1);
+         return $result;
+     }
+     my $mimetype;
+     if ($env{'form.upfiletype'} eq 'iclicker') {
+         my $mm = new File::MMagic;
+         $mimetype = $mm->checktype_contents($env{'form.upfile'});
+         unless (($mimetype eq 'text/plain') || ($mimetype eq 'text/html')) {
+             $result.= '<p>'.
+                 &Apache::lonhtmlcommon::confirm_success(
+                     &mt('File format is neither csv (iclicker 6) nor xml (iclicker 7)'),1).'</p>';
+             return $result;
+         }
+     } elsif (($env{'form.upfiletype'} ne 'interwrite') && ($env{'form.upfiletype'} ne 'turning')) {
+         $result .= '<p>'.
+             &Apache::lonhtmlcommon::confirm_success(
+                 &mt('Invalid clicker type: choose one of: i>clicker, Interwrite PRS, or Turning Technologies.'),1).'</p>';
+         return $result;
+     }
+ # Were able to get all the info needed, now analyze the file
+     $result.=&Apache::loncommon::studentbrowser_javascript();
+     $symb = &Apache::lonenc::check_encrypt($symb);
+     $result.=&Apache::loncommon::start_data_table().
+              &Apache::loncommon::start_data_table_header_row().
+              '<th>'.&mt('Evaluate clicker file').'</th>'.
+              &Apache::loncommon::end_data_table_header_row().
+              &Apache::loncommon::start_data_table_row().(<<ENDHEADER);
+ <td>
+ <form method="post" action="/adm/grades" name="clickeranalysis">
+ <input type="hidden" name="symb" value="$symb" />
+ <input type="hidden" name="command" value="assignclickergrades" />
+ <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
+ <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
+ <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
+ ENDHEADER
+     if ($env{'form.gradingmechanism'} eq 'given') {
+        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
+     }
+     my %responses;
+     my @questiontitles;
+     my $errormsg='';
+     my $number=0;
+     if ($env{'form.upfiletype'} eq 'iclicker') {
+         if ($mimetype eq 'text/plain') {
+             ($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
+         } elsif ($mimetype eq 'text/html') {
+             ($errormsg,$number)=&iclickerxml_eval(\@questiontitles,\%responses);
+         }
+     } elsif ($env{'form.upfiletype'} eq 'interwrite') {
+         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
+     } elsif ($env{'form.upfiletype'} eq 'turning') {
+         ($errormsg,$number)=&turning_eval(\@questiontitles,\%responses);
+     }
+     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
+              '<input type="hidden" name="number" value="'.$number.'" />'.
+              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
+                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
+              '<br />';
+     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
+        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
+        return $result;
+     }
+ # Remember Question Titles
+ # FIXME: Possibly need delimiter other than ":"
+     for (my $i=0;$i<$number;$i++) {
+         $result.='<input type="hidden" name="question:'.$i.'" value="'.
+                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
+     }
+     my $correct_count=0;
+     my $student_count=0;
+     my $unknown_count=0;
+ # Match answers with usernames
+ # FIXME: Possibly need delimiter other than ":"
+     foreach my $id (keys(%responses)) {
+        if ($correct_ids{$id}) {
+           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
+           $correct_count++;
+        } elsif ($clicker_ids{$id}) {
+           if ($clicker_ids{$id}=~/\,/) {
+ # More than one user with the same clicker!
+              $result.="</td>".&Apache::loncommon::end_data_table_row().
+                            &Apache::loncommon::start_data_table_row()."<td>".
+                        &mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
+              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
+                            "<select name='multi".$id."'>";
+              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
+                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
+              }
+              $result.='</select>';
+              $unknown_count++;
+           } else {
+ # Good: found one and only one user with the right clicker
+              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
+              $student_count++;
+           }
+        } else {
+           $result.="</td>".&Apache::loncommon::end_data_table_row().
+                            &Apache::loncommon::start_data_table_row()."<td>".
+                     &mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
+           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
+                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
+                    "\n".&mt("Domain").": ".
+                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
+                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,'',$id);
+           $unknown_count++;
+        }
+     }
+     $result.='<hr />'.
+              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
+     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
+        if ($correct_count==0) {
+           $errormsg.="Found no correct answers for grading!";
+        } elsif ($correct_count>1) {
+           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
+        }
+     }
+     if ($number<1) {
+        $errormsg.="Found no questions.";
+     }
+     if ($errormsg) {
+        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
+     } else {
+        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
+     }
+     $result.='</form></td>'.
+              &Apache::loncommon::end_data_table_row().
+              &Apache::loncommon::end_data_table();
+     return $result;
+ }
+ sub iclicker_eval {
+     my ($questiontitles,$responses)=@_;
+     my $number=0;
+     my $errormsg='';
+     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
+         my %components=&Apache::loncommon::record_sep($line);
+         my @entries=map {$components{$_}} (sort(keys(%components)));
+ 	if ($entries[0] eq 'Question') {
+ 	    for (my $i=3;$i<$#entries;$i+=6) {
+ 		$$questiontitles[$number]=$entries[$i];
+ 		$number++;
+ 	    }
+ 	}
+ 	if ($entries[0]=~/^\#/) {
+ 	    my $id=$entries[0];
+ 	    my @idresponses;
+ 	    $id=~s/^[\#0]+//;
+ 	    for (my $i=0;$i<$number;$i++) {
+ 		my $idx=3+$i*6;
+                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
+ 		push(@idresponses,$entries[$idx]);
+ 	    }
+ 	    $$responses{$id}=join(',',@idresponses);
+ 	}
+     }
+     return ($errormsg,$number);
+ }
+ sub iclickerxml_eval {
+     my ($questiontitles,$responses)=@_;
+     my $number=0;
+     my $errormsg='';
+     my @state;
+     my %respbyid;
+     my $p = HTML::Parser->new
+     (
+         xml_mode => 1,
+         start_h =>
+             [sub {
+                  my ($tagname,$attr) = @_;
+                  push(@state,$tagname);
+                  if ("@state" eq "ssn p") {
+                      my $title = $attr->{qn};
+                      $title =~ s/(^\s+|\s+$)//g;
+                      $questiontitles->[$number]=$title;
+                  } elsif ("@state" eq "ssn p v") {
+                      my $id = $attr->{id};
+                      my $entry = $attr->{ans};
+                      $id=~s/^[\#0]+//;
+                      $entry =~s/[^a-zA-Z0-9\.\*\-\+]+//g;
+                      $respbyid{$id}[$number] = $entry;
+                  }
+             }, "tagname, attr"],
+          end_h =>
+                [sub {
+                    my ($tagname) = @_;
+                    if ("@state" eq "ssn p") {
+                        $number++;
+                    }
+                    pop(@state);
+                 }, "tagname"],
+     );
+     $p->parse($env{'form.upfile'});
+     $p->eof;
+     foreach my $id (keys(%respbyid)) {
+         $responses->{$id}=join(',',@{$respbyid{$id}});
+     }
+     return ($errormsg,$number);
+ }
+ sub interwrite_eval {
+     my ($questiontitles,$responses)=@_;
+     my $number=0;
+     my $errormsg='';
+     my $skipline=1;
+     my $questionnumber=0;
+     my %idresponses=();
+     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
+         my %components=&Apache::loncommon::record_sep($line);
+         my @entries=map {$components{$_}} (sort(keys(%components)));
+         if ($entries[1] eq 'Time') { $skipline=0; next; }
+         if ($entries[1] eq 'Response') { $skipline=1; }
+         next if $skipline;
+         if ($entries[0]!=$questionnumber) {
+            $questionnumber=$entries[0];
+            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
+            $number++;
+         }
+         my $id=$entries[4];
+         $id=~s/^[\#0]+//;
+         $id=~s/^v\d*\://i;
+         $id=~s/[\-\:]//g;
+         $idresponses{$id}[$number]=$entries[6];
+     }
+     foreach my $id (keys(%idresponses)) {
+        $$responses{$id}=join(',',@{$idresponses{$id}});
+        $$responses{$id}=~s/^\s*\,//;
+     }
+     return ($errormsg,$number);
+ }
+ sub turning_eval {
+     my ($questiontitles,$responses)=@_;
+     my $number=0;
+     my $errormsg='';
+     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
+         my %components=&Apache::loncommon::record_sep($line);
+         my @entries=map {$components{$_}} (sort(keys(%components)));
+         if ($#entries>$number) { $number=$#entries; }
+         my $id=$entries[0];
+         my @idresponses;
+         $id=~s/^[\#0]+//;
+         unless ($id) { next; }
+         for (my $idx=1;$idx<=$#entries;$idx++) {
+             $entries[$idx]=~s/\,/\;/g;
+             $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+\;]+//g;
+             push(@idresponses,$entries[$idx]);
+         }
+         $$responses{$id}=join(',',@idresponses);
+     }
+     for (my $i=1; $i<=$number; $i++) {
+         $$questiontitles[$i]=&mt('Question [_1]',$i);
+     }
+     return ($errormsg,$number);
+ }
+ sub assign_clicker_grades {
+     my ($r,$symb) = @_;
+     if (!$symb) {return '';}
+ # See which part we are saving to
+     my $res_error;
+     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+     if ($res_error) {
+         return &navmap_errormsg();
+     }
+ # FIXME: This should probably look for the first handgradeable part
+     my $part=$$partlist[0];
+ # Start screen output
+     my $result = &Apache::loncommon::start_data_table().
+                  &Apache::loncommon::start_data_table_header_row().
+                  '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
+                  &Apache::loncommon::end_data_table_header_row().
+                  &Apache::loncommon::start_data_table_row().'<td>';
+ # Get correct result
+ # FIXME: Possibly need delimiter other than ":"
+     my @correct=();
+     my $gradingmechanism=$env{'form.gradingmechanism'};
+     my $number=$env{'form.number'};
+     if ($gradingmechanism ne 'attendance') {
+        foreach my $key (keys(%env)) {
+           if ($key=~/^form\.correct\:/) {
+              my @input=split(/\,/,$env{$key});
+              for (my $i=0;$i<=$#input;$i++) {
+                  if (($correct[$i]) && ($input[$i]) &&
+                      ($correct[$i] ne $input[$i])) {
+                     $result.='<br /><span class="LC_warning">'.
+                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
+                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
+                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
+                     $correct[$i]=$input[$i];
+                  }
+              }
+           }
+        }
+        for (my $i=0;$i<$number;$i++) {
+           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
+              $result.='<br /><span class="LC_error">'.
+                       &mt('No correct result given for question "[_1]"!',
+                           $env{'form.question:'.$i}).'</span>';
+           }
+        }
+        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
+     }
+ # Start grading
+     my $pcorrect=$env{'form.pcorrect'};
+     my $pincorrect=$env{'form.pincorrect'};
+     my $storecount=0;
+     my %users=();
+     foreach my $key (keys(%env)) {
+        my $user='';
+        if ($key=~/^form\.student\:(.*)$/) {
+           $user=$1;
+        }
+        if ($key=~/^form\.unknown\:(.*)$/) {
+           my $id=$1;
+           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
+              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
+           } elsif ($env{'form.multi'.$id}) {
+              $user=$env{'form.multi'.$id};
+           }
+        }
+        if ($user) {
+           if ($users{$user}) {
+              $result.='<br /><span class="LC_warning">'.
+                       &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
+                       '</span><br />';
+           }
+           $users{$user}=1;
+           my @answer=split(/\,/,$env{$key});
+           my $sum=0;
+           my $realnumber=$number;
+           for (my $i=0;$i<$number;$i++) {
+              if  ($correct[$i] eq '-') {
+                 $realnumber--;
+              } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/)) {
+                 if ($gradingmechanism eq 'attendance') {
+                    $sum+=$pcorrect;
+                 } elsif ($correct[$i] eq '*') {
+                    $sum+=$pcorrect;
+                 } else {
+ # We actually grade if correct or not
+                    my $increment=$pincorrect;
+ # Special case: numerical answer "0"
+                    if ($correct[$i] eq '0') {
+                       if ($answer[$i]=~/^[0\.]+$/) {
+                          $increment=$pcorrect;
+                       }
+ # General numerical answer, both evaluate to something non-zero
+                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
+                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
+                          $increment=$pcorrect;
+                       }
+ # Must be just alphanumeric
+                    } elsif ($answer[$i] eq $correct[$i]) {
+                       $increment=$pcorrect;
+                    }
+                    $sum+=$increment;
+                 }
+              }
+           }
+           my $ave=$sum/(100*$realnumber);
+ # Store
+           my ($username,$domain)=split(/\:/,$user);
+           my %grades=();
+           $grades{"resource.$part.solved"}='correct_by_override';
+           $grades{"resource.$part.awarded"}=$ave;
+           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
+           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
+                                                  $env{'request.course.id'},
+                                                  $domain,$username);
+           if ($returncode ne 'ok') {
+              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
+           } else {
+              $storecount++;
+           }
+        }
+     }
+ # We are done
+     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
+              '</td>'.
+              &Apache::loncommon::end_data_table_row().
+              &Apache::loncommon::end_data_table();
+     return $result;
+ }
+ sub navmap_errormsg {
+     return '<div class="LC_error">'.
+            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
+            &mt('It is recommended that you [_1]re-initialize the course[_2] and then return to this grading page.','<a href="/adm/roles?selectrole=1&newrole='.$env{'request.role'}.'">','</a>').
+            '</div>';
+ }
+ sub startpage {
+     my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js,$onload) = @_;
+     my %args;
+     if ($onload) {
+          my %loaditems = (
+                         'onload' => $onload,
+                       );
+          $args{'add_entries'} = \%loaditems;
+     }
+     if ($nomenu) {
+         $args{'only_body'} = 1;
+         $r->print(&Apache::loncommon::start_page("Student's Version",$js,\%args));
+     } else {
+         unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
+         $args{'bread_crumbs'} = $crumbs;
+         $r->print(&Apache::loncommon::start_page('Grading',$js,\%args));
+         if ($env{'request.course.id'}) {
+             &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
+         }
+     }
+     unless ($nodisplayflag) {
+         $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp));
+     }
+ }
+ sub select_problem {
+     my ($r)=@_;
+     $r->print('<h3>'.&mt('Select the problem or one of the problems you want to grade').'</h3><form action="/adm/grades">');
+     $r->print(&Apache::lonstathelpers::problem_selector('.',undef,1,undef,undef,undef,undef,1));
+     $r->print('<input type="hidden" name="command" value="gradingmenu" />');
+     $r->print('<input type="submit" value="'.&mt('Next').' &rarr;" /></form>');
+ }
+ sub handler {
+     my $request=$_[0];
+     &reset_caches();
+     if ($request->header_only) {
+         &Apache::loncommon::content_type($request,'text/html');
+         $request->send_http_header;
+         return OK;
+     }
+     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
+ # see what command we need to execute
+     my @commands=&Apache::loncommon::get_env_multiple('form.command');
+     my $command=$commands[0];
+     &init_perm();
+     if (!$env{'request.course.id'}) {
+         unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
+                 ($command =~ /^scantronupload/)) {
+             # Not in a course.
+             $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
+             return HTTP_NOT_ACCEPTABLE;
+         }
+     } elsif (!%perm) {
+         $request->internal_redirect('/adm/quickgrades');
+         return OK;
+     }
+     &Apache::loncommon::content_type($request,'text/html');
+     $request->send_http_header;
+     if ($#commands > 0) {
+ 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
+     }
+ # see what the symb is
+     my $symb=$env{'form.symb'};
+     unless ($symb) {
+        (my $url=$env{'form.url'}) =~ s-^https*://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
+        $symb=&Apache::lonnet::symbread($url);
+     }
+     &Apache::lonenc::check_decrypt(\$symb);
+     $ssi_error = 0;
+     if (($symb eq '' || $command eq '') && ($env{'request.course.id'})) {
+ #
+ # Not called from a resource, but inside a course
+ #
+         &startpage($request,undef,[],1,1);
+         &select_problem($request);
+     } else {
  	if ($command eq 'submission' && $perm{'vgr'}) {
- 	    ($ENV{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
+             my ($stuvcurrent,$stuvdisp,$versionform,$js);
+             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
+                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
+                     &choose_task_version_form($symb,$env{'form.student'},
+                                               $env{'form.userdom'});
+             }
+             &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
+             if ($versionform) {
+                 $request->print($versionform);
+             }
+             $request->print('<br clear="all" />');
+ 	    ($env{'form.student'} eq '' ? &listStudents($request,$symb) : &submission($request,0,0,$symb));
+         } elsif ($command eq 'versionsub' && $perm{'vgr'}) {
+             my ($stuvcurrent,$stuvdisp,$versionform,$js) =
+                 &choose_task_version_form($symb,$env{'form.student'},
+                                           $env{'form.userdom'},
+                                           $env{'form.inhibitmenu'});
+             &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,$stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$js);
+             if ($versionform) {
+                 $request->print($versionform);
+             }
+             $request->print('<br clear="all" />');
+             $request->print(&show_previous_task_version($request,$symb));
  	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
- 	    &pickStudentPage($request);
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
+                                        {href=>'',text=>'Select student'}],1,1);
+ 	    &pickStudentPage($request,$symb);
  	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
- 	    &displayPage($request);
+             &startpage($request,$symb,
+                                       [{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
+                                        {href=>'',text=>'Select student'},
+                                        {href=>'',text=>'Grade student'}],1,1);
+ 	    &displayPage($request,$symb);
  	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
- 	    &updateGradeByPage($request);
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
+                                        {href=>'',text=>'Select student'},
+                                        {href=>'',text=>'Grade student'},
+                                        {href=>'',text=>'Store grades'}],1,1);
+ 	    &updateGradeByPage($request,$symb);
  	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
- 	    &processGroup($request);
+             &startpage($request,$symb,[{href=>'',text=>'...'},
+                                        {href=>'',text=>'Modify grades'}]);
+ 	    &processGroup($request,$symb);
  	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
- 	    $request->print(&gradingmenu($request));
+             &startpage($request,$symb);
+ 	    $request->print(&grading_menu($request,$symb));
+ 	} elsif ($command eq 'individual' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'',text=>'Select individual students to grade'}]);
+ 	    $request->print(&submit_options($request,$symb));
+         } elsif ($command eq 'ungraded' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'',text=>'Grade ungraded submissions'}]);
+             $request->print(&listStudents($request,$symb,'graded'));
+         } elsif ($command eq 'table' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>"", text=>"Grading table"}]);
+             $request->print(&submit_options_table($request,$symb));
+         } elsif ($command eq 'all_for_one' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'',text=>'Grade page/folder for one student'}],1,1);
+             $request->print(&submit_options_sequence($request,$symb));
  	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
- 	    $request->print(&viewgrades($request));
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},{href=>'', text=>"Modify grades"}]);
+ 	    $request->print(&viewgrades($request,$symb));
  	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
- 	    $request->print(&processHandGrade($request));
+             &startpage($request,$symb,[{href=>'',text=>'...'},
+                                        {href=>'',text=>'Store grades'}]);
+ 	    $request->print(&processHandGrade($request,$symb));
  	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
- 	    $request->print(&editgrades($request));
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},
+                                        {href=>&href_symb_cmd($symb,'viewgrades').'&group=all&section=all&Status=Active',
+                                                                              text=>"Modify grades"},
+                                        {href=>'', text=>"Store grades"}]);
+ 	    $request->print(&editgrades($request,$symb));
+         } elsif ($command eq 'initialverifyreceipt' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'',text=>'Verify Receipt Number'}]);
+             $request->print(&initialverifyreceipt($request,$symb));
  	} elsif ($command eq 'verify' && $perm{'vgr'}) {
- 	    $request->print(&verifyreceipt($request));
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"initialverifyreceipt"),text=>'Verify Receipt Number'},
+                                        {href=>'',text=>'Verification Result'}]);
+ 	    $request->print(&verifyreceipt($request,$symb));
+         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
+             &startpage($request,$symb,[{href=>'', text=>'Process clicker'}]);
+             $request->print(&process_clicker($request,$symb));
+         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
+                                        {href=>'', text=>'Process clicker file'}]);
+             $request->print(&process_clicker_file($request,$symb));
+         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
+             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
+                                        {href=>'', text=>'Process clicker file'},
+                                        {href=>'', text=>'Store grades'}]);
+             $request->print(&assign_clicker_grades($request,$symb));
  	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
- 	    $request->print(&upcsvScores_form($request));
+             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
+ 	    $request->print(&upcsvScores_form($request,$symb));
  	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
- 	    $request->print(&csvupload($request));
+             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
+ 	    $request->print(&csvupload($request,$symb));
  	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
- 	    $request->print(&csvuploadmap($request));
+             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
- 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'}) {
+ 	    $request->print(&csvuploadmap($request,$symb));
- 	    if ($ENV{'form.associate'} ne 'Reverse Association') {
+ 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
- 		$request->print(&csvuploadassign($request));
+ 	    if ($env{'form.associate'} ne 'Reverse Association') {
+                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
+ 		$request->print(&csvuploadoptions($request,$symb));
  	    } else {
- 		if ( $ENV{'form.upfile_associate'} ne 'reverse' ) {
+ 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
- 		    $ENV{'form.upfile_associate'} = 'reverse';
+ 		    $env{'form.upfile_associate'} = 'reverse';
  		} else {
- 		    $ENV{'form.upfile_associate'} = 'forward';
+ 		    $env{'form.upfile_associate'} = 'forward';
  		}
- 		$request->print(&csvuploadmap($request));
+                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
+ 		$request->print(&csvuploadmap($request,$symb));
  	    }
+ 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
+             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
+ 	    $request->print(&csvuploadassign($request,$symb));
  	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
- 	    $request->print(&scantron_selectphase($request));
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1,
+                        undef,undef,undef,undef,'toggleScantab(document.rules);');
+ 	    $request->print(&scantron_selectphase($request,undef,$symb));
+  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+  	    $request->print(&scantron_do_warning($request,$symb));
+ 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+ 	    $request->print(&scantron_validate_file($request,$symb));
  	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
- 	    $request->print(&scantron_process_students($request));
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+ 	    $request->print(&scantron_process_students($request,$symb));
+  	} elsif ($command eq 'scantronupload' &&
+  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
+ 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1,
+                        undef,undef,undef,undef,'toggleScantab(document.rules);');
+  	    $request->print(&scantron_upload_scantron_data($request,$symb));
+  	} elsif ($command eq 'scantronupload_save' &&
+  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
+ 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+  	    $request->print(&scantron_upload_scantron_data_save($request,$symb));
+  	} elsif ($command eq 'scantron_download' &&
+ 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+  	    $request->print(&scantron_download_scantron_data($request,$symb));
+         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+             $request->print(&checkscantron_results($request,$symb));
+         } elsif ($command eq 'downloadfilesselect' && $perm{'vgr'}) {
+             &startpage($request,$symb,[{href=>'', text=>'Select which submissions to download'}]);
+             $request->print(&submit_options_download($request,$symb));
+          } elsif ($command eq 'downloadfileslink' && $perm{'vgr'}) {
+             &startpage($request,$symb,
+    [{href=>&href_symb_cmd($symb,'downloadfilesselect'), text=>'Select which submissions to download'},
+     {href=>'', text=>'Download submitted files'}]);
+             &submit_download_link($request,$symb);
  	} elsif ($command) {
- 	    $request->print("Access Denied");
+             &startpage($request,$symb,[{href=>'', text=>'Access denied'}]);
+ 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
  	}
      }
-     &send_footer($request);
+     if ($ssi_error) {
-     return '';
+ 	&ssi_print_error($request);
- }
+     }
+     if ($env{'form.inhibitmenu'}) {
- sub send_header {
+         $request->print(&Apache::loncommon::end_page());
-     my ($request)= @_;
+     } elsif ($env{'request.course.id'}) {
-     $request->print(&Apache::lontexconvert::header());
+         &Apache::lonquickgrades::endGradeScreen($request);
- #  $request->print("
+     }
- #<script>
+     &reset_caches();
- #remotewindow=open('','homeworkremote');
+     return OK;
- #remotewindow.close();
- #</script>");
-     $request->print(&Apache::loncommon::bodytag('Grading'));
- }
- sub send_footer {
-     my ($request)= @_;
-     $request->print('</body>');
-     $request->print(&Apache::lontexconvert::footer());
  }
 ;
  __END__;
+ =head1 NAME
+ Apache::grades
+ =head1 SYNOPSIS
+ Handles the viewing of grades.
+ This is part of the LearningOnline Network with CAPA project
+ described at http://www.lon-capa.org.
+ =head1 OVERVIEW
+ Do an ssi with retries:
+ While I'd love to factor out this with the version in lonprintout,
+ that would either require a data coupling between modules, which I refuse to perpetuate (there's quite enough of that already), or would require the invention of another infrastructure
+ I'm not quite ready to invent (e.g. an ssi_with_retry object).
+ At least the logic that drives this has been pulled out into loncommon.
+ ssi_with_retries - Does the server side include of a resource.
+                      if the ssi call returns an error we'll retry it up to
+                      the number of times requested by the caller.
+                      If we still have a problem, no text is appended to the
+                      output and we set some global variables.
+                      to indicate to the caller an SSI error occurred.
+                      All of this is supposed to deal with the issues described
+                      in LON-CAPA BZ 5631 see:
+                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
+                      by informing the user that this happened.
+ Parameters:
+   resource   - The resource to include.  This is passed directly, without
+                interpretation to lonnet::ssi.
+   form       - The form hash parameters that guide the interpretation of the resource
+   retries    - Number of retries allowed before giving up completely.
+ Returns:
+   On success, returns the rendered resource identified by the resource parameter.
+ Side Effects:
+   The following global variables can be set:
+    ssi_error                - If an unrecoverable error occurred this becomes true.
+                               It is up to the caller to initialize this to false
+                               if desired.
+    ssi_error_resource  - If an unrecoverable error occurred, this is the value
+                               of the resource that could not be rendered by the ssi
+                               call.
+    ssi_error_message   - The error string fetched from the ssi response
+                               in the event of an error.
+ =head1 HANDLER SUBROUTINE
+ ssi_with_retries()
+ =head1 SUBROUTINES
+ =over
+ =head1 Routines to display previous version of a Task for a specific student
+ Tasks are graded pass/fail. Students who have yet to pass a particular Task
+ can receive another opportunity. Access to tasks is slot-based. If a slot
+ requires a proctor to check-in the student, a new version of the Task will
+ be created when the student is checked in to the new opportunity.
+ If a particular student has tried two or more versions of a particular task,
+ the submission screen provides a user with vgr privileges (e.g., a Course
+ Coordinator) the ability to display a previous version worked on by the
+ student.  By default, the current version is displayed. If a previous version
+ has been selected for display, submission data are only shown that pertain
+ to that particular version, and the interface to submit grades is not shown.
+ =over 4
+ =item show_previous_task_version()
+ Displays a specified version of a student's Task, as the student sees it.
+ Inputs: 2
+         request - request object
+         symb    - unique symb for current instance of resource
+ Output: None.
+ Side Effects: calls &show_problem() to print version of Task, with
+               version contained in form item: $env{'form.previousversion'}
+ =item choose_task_version_form()
+ Displays a web form used to select which version of a student's view of a
+ Task should be displayed.  Either launches a pop-up window, or replaces
+ content in existing pop-up, or replaces page in main window.
+ Inputs: 4
+         symb    - unique symb for current instance of resource
+         uname   - username of student
+         udom    - domain of student
+         nomenu  - 1 if display is in a pop-up window, and hence no menu
+                   breadcrumbs etc., are displayed
+ Output: 4
+         current   - student's current version
+         displayed - student's version being displayed
+         result    - scalar containing HTML for web form used to switch to
+                     a different version (or a link to close window, if pop-up).
+         js        - javascript for processing selection in versions web form
+ Side Effects: None.
+ =item previous_display_javascript()
+ Inputs: 2
+         nomenu  - 1 if display is in a pop-up window, and hence no menu
+                   breadcrumbs etc., are displayed.
+         current - student's current version number.
+ Output: 1
+         js      - javascript for processing selection in versions web form.
+ Side Effects: None.
+ =back
+ =head1 Routines to process bubblesheet data.
+ =over 4
+ =item scantron_get_correction() :
+    Builds the interface screen to interact with the operator to fix a
+    specific error condition in a specific scanline
+  Arguments:
+     $r           - Apache request object
+     $i           - number of the current scanline
+     $scan_record - hash ref as returned from &scantron_parse_scanline()
+     $scan_config - hash ref as returned from &Apache::lonnet::get_scantron_config()
+     $line        - full contents of the current scanline
+     $error       - error condition, valid values are
+                    'incorrectCODE', 'duplicateCODE',
+                    'doublebubble', 'missingbubble',
+                    'duplicateID', 'incorrectID'
+     $arg         - extra information needed
+        For errors:
+          - duplicateID   - paper number that this studentID was seen before on
+          - duplicateCODE - array ref of the paper numbers this CODE was
+                            seen on before
+          - incorrectCODE - current incorrect CODE
+          - doublebubble  - array ref of the bubble lines that have double
+                            bubble errors
+          - missingbubble - array ref of the bubble lines that have missing
+                            bubble errors
+    $randomorder - True if exam folder has randomorder set
+    $randompick  - True if exam folder has randompick set
+    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                      for current line to question number used for same question
+                      in "Master Seqence" (as seen by Course Coordinator).
+    $startline   - Reference to hash where key is question number (0 is first)
+                   and value is number of first bubble line for current student
+                   or code-based randompick and/or randomorder.
+ =item  scantron_get_maxbubble() :
+    Arguments:
+        $nav_error  - Reference to scalar which is a flag to indicate a
+                       failure to retrieve a navmap object.
+        if $nav_error is set to 1 by scantron_get_maxbubble(), the
+        calling routine should trap the error condition and display the warning
+        found in &navmap_errormsg().
+        $scantron_config - Reference to bubblesheet format configuration hash.
+    Returns the maximum number of bubble lines that are expected to
+    occur. Does this by walking the selected sequence rendering the
+    resource and then checking &Apache::lonxml::get_problem_counter()
+    for what the current value of the problem counter is.
+    Caches the results to $env{'form.scantron_maxbubble'},
+    $env{'form.scantron.bubble_lines.n'},
+    $env{'form.scantron.first_bubble_line.n'} and
+    $env{"form.scantron.sub_bubblelines.n"}
+    which are the total number of bubble lines, the number of bubble
+    lines for response n and number of the first bubble line for response n,
+    and a comma separated list of numbers of bubble lines for sub-questions
+    (for optionresponse, matchresponse, and rankresponse items), for response n.
+ =item  scantron_validate_missingbubbles() :
+    Validates all scanlines in the selected file to not have any
+     answers that don't have bubbles that have not been verified
+     to be bubble free.
+ =item  scantron_process_students() :
+    Routine that does the actual grading of the bubblesheet information.
+    The parsed scanline hash is added to %env
+    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
+    foreach resource , with the form data of
+ 	'submitted'     =>'scantron'
+ 	'grade_target'  =>'grade',
+ 	'grade_username'=> username of student
+ 	'grade_domain'  => domain of student
+ 	'grade_courseid'=> of course
+ 	'grade_symb'    => symb of resource to grade
+     This triggers a grading pass. The problem grading code takes care
+     of converting the bubbled letter information (now in %env) into a
+     valid submission.
+ =item  scantron_upload_scantron_data() :
+     Creates the screen for adding a new bubblesheet data file to a course.
+ =item  scantron_upload_scantron_data_save() :
+    Adds a provided bubble information data file to the course if user
+    has the correct privileges to do so.
+ =item  valid_file() :
+    Validates that the requested bubble data file exists in the course.
+ =item  scantron_download_scantron_data() :
+    Shows a list of the three internal files (original, corrected,
+    skipped) for a specific bubblesheet data file that exists in the
+    course.
+ =item  scantron_validate_ID() :
+    Validates all scanlines in the selected file to not have any
+    invalid or underspecified student/employee IDs
+ =item navmap_errormsg() :
+    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
+    Should be called whenever the request to instantiate a navmap object fails.
+ =back
+ =back
+ =cut

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