loncom/homework/structuretags.pm - diff

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Diff for /loncom/homework/structuretags.pm between versions 1.334 and 1.497

-version 1.334, 2006/02/11 00:03:07
+version 1.497, 2011/11/14 00:20:39
  Line 27
  #
  ###
+ =pod
+ =head1 NAME
+ Apache::structuretags
+ =head1 SYNOPSIS
+ This is part of the LearningOnline Network with CAPA project
+ described at http://www.lon-capa.org.
+ =head1 NOTABLE SUBROUTINES
+ =over
+ =item
+ =back
+ =cut
  package Apache::structuretags;
- Line 36  use Apache::File();
+ Line 59  use Apache::File();
  use Apache::lonmenu;
  use Apache::lonlocal;
  use Apache::lonxml;
+ use Apache::londefdef;
+ use Apache::lonenc();
  use Time::HiRes qw( gettimeofday tv_interval );
+ use lib '/home/httpd/lib/perl/';
+ use LONCAPA;
  BEGIN {
-     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
+     &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
  }
  sub start_web {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-     my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
+     if ($target ne 'edit' && $target ne 'modified') {
-     if ($target eq 'web') {
+ 	my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
- 	return $bodytext;
+ 	if ($target eq 'web' || $target eq 'webgrade') {
+ 	    return $bodytext;
+ 	}
+     } elsif ($target eq "edit" ) {
+ 	my $bodytext =
+ 	    &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
+ 	my $result = &Apache::edit::tag_start($target,$token);
+ 	$result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
+ 	return $result;
+     } elsif ( $target eq "modified" ) {
+ 	return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
      }
      return '';
  }
- Line 57  sub end_web {
+ Line 95  sub end_web {
  sub start_tex {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result='';
-     my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
+     if ($target ne 'edit' && $target ne 'modified') {
-     if ($target eq 'tex') {
+ 	my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
- 	return $bodytext.' ';
+ 	if ($target eq 'tex') {
+ 	    # If inside a table, occurrences of \\ must be removed;
+ 	    # else the table blows up.
+ 	    if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
+ 		$bodytext =~ s/\\\\//g;
+ 	    }
+ 	    return $bodytext.'{}';
+ 	}
+     } elsif ($target eq "edit" ) {
+ 	my $bodytext =
+ 	    &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
+ 	my $result = &Apache::edit::tag_start($target,$token);
+ 	$result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
+ 	return $result;
+     } elsif ( $target eq "modified" ) {
+ 	return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
      }
      return $result;;
  }
- Line 68  sub end_tex {
+ Line 123  sub end_tex {
      return '';
  }
- sub body_tag_start {
+ sub homework_js {
-     my ($target,$background,$bgcolor)=@_;
+     return &Apache::loncommon::resize_textarea_js().
-     my $body_tag_start='<body onload="'.&Apache::lonmenu::loadevents().'" '.
+            &setmode_javascript().
- 	'onunload="'.&Apache::lonmenu::unloadevents().'" ';
+ 	<<'JS';
-     if ($env{'browser.imagesuppress'} eq 'on') { $background=''; }
+ <script type="text/javascript">
-     if ($background) {
+ // <![CDATA[
- 	&Apache::lonxml::extlink($background);
+ function setSubmittedPart (part,prefix) {
- 	$body_tag_start.='background="'.$background.'" ';
+     if (typeof(prefix) == 'undefined') {
+         this.document.lonhomework.submitted.value="part_"+part;
      } else {
- 	if (($bgcolor) && ($env{'browser.blackwhite'} ne 'on')) {
+         for (var i=0;i<this.document.lonhomework.elements.length;i++) {
- 	    $body_tag_start.='bgcolor="'.$bgcolor.'" ';
+             if (this.document.lonhomework.elements[i].name == prefix+'submitted') {
- 	} else {
+                 this.document.lonhomework.elements[i].value="part_"+part;
- 	    $body_tag_start.='bgcolor="#ffffff"';
+             }
- 	}
+         }
-     }
-     if ($env{'browser.fontenhance'} eq 'on') {
- 	$body_tag_start.=' style="font-size: x-large;" ';
-     }
-     $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
-     &Apache::lontexconvert::jsMath_reset();
-     if ($env{'environment.texengine'} eq 'jsMath') {
- 	$body_tag_start.=&Apache::lontexconvert::jsMath_header();
      }
-     return $body_tag_start;
+ }
+ function image_response_click (which, e) {
+     init_geometry();
+     if (!e) { e = window.event; } //IE
+     var input_element = document.lonhomework.elements[which];
+     var token_element = document.lonhomework.elements[which+'_token'];
+     var token = token_element.value;
+     var img_element   = document.getElementById(which+'_imageresponse');
+     var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
+     var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
+     var click = x+':'+y;
+     input_element.value = click;
+     img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
+ }
+ // ]]>
+ </script>
+ JS
+ }
+ sub setmode_javascript {
+     return <<"ENDSCRIPT";
+ <script type="text/javascript">
+ // <![CDATA[
+ function setmode(form,probmode) {
+     form.problemmode.value = probmode;
+     form.submit();
+ }
+ // ]]>
+ </script>
+ ENDSCRIPT
  }
  sub page_start {
-     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
+ 	$extra_head)=@_;
      my %found;
      foreach my $taginside (@$tagstack) {
  	foreach my $taglookedfor ('html','body','form') {
- Line 104  sub page_start {
+ Line 182  sub page_start {
  	}
      }
-     my $result;
+     if ($target eq 'tex') {
-     my $head_tag_start;
+ 	return
-     if (!defined($found{'html'})) {
+ 	    &Apache::londefdef::start_html($target,$token,$tagstack,
- 	$result=&Apache::londefdef::start_html($target,$token,$tagstack,
+ 					   $parstack,$parser,$safeeval);
- 					       $parstack,$parser,$safeeval);
+     }
- 	$head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
- 	    &Apache::lonhtmlcommon::htmlareaheaders().
+     $extra_head .= &homework_js().
- 	    &Apache::lonhtmlcommon::spellheader().
+                    &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
- 	    &Apache::lonxml::fontsettings();
+     if (&Apache::lonhtmlcommon::htmlareabrowser()) {
- 	if ($target eq 'edit') {
+         my %textarea_args = (
- 	    $head_tag_start.=&Apache::edit::js_change_detection();
+                                 dragmath => 'math',
+                               );
+         $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
+     }
+     my $is_task = ($env{'request.uri'} =~ /\.task$/);
+     my $needs_upload;
+     my ($symb)= &Apache::lonnet::whichuser();
+     my ($map,$resid,$resurl)=&Apache::lonnet::decode_symb($symb);
+     if ($is_task) {
+         $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
+     } else {
+         if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.uploadedfiletypes") ne '') {
+             unless ($env{'request.state'} eq 'construct') {
+                 my $navmap = Apache::lonnavmaps::navmap->new();
+                 if (ref($navmap)) {
+                     my $mapres = $navmap->getResourceByUrl($map);
+                     my $is_page;
+                     if (ref($mapres)) {
+                         $is_page = $mapres->is_page();
+                     }
+                     unless ($is_page) {
+                         $needs_upload = 1;
+                     }
+                 }
+             }
+         } else {
+             unless ($env{'request.state'} eq 'construct') {
+                 my $navmap = Apache::lonnavmaps::navmap->new();
+                 if (ref($navmap)) {
+                     my $mapres = $navmap->getResourceByUrl($map);
+                     my $is_page;
+                     if (ref($mapres)) {
+                         $is_page = $mapres->is_page();
+                     }
+                     unless ($is_page) {
+                         my $res = $navmap->getBySymb($symb);
+                         if (ref($res)) {
+                             my $partlist = $res->parts();
+                             if (ref($partlist) eq 'ARRAY') {
+                                 foreach my $part (@{$partlist}) {
+                                     my @types = $res->responseType($part);
+                                     my @ids = $res->responseIds($part);
+                                     for (my $i=0; $i < scalar(@ids); $i++) {
+                                         if ($types[$i] eq 'essay') {
+                                             my $partid = $part.'_'.$ids[$i];
+                                             if (&Apache::lonnet::EXT("resource.$partid.uploadedfiletypes") ne '') {
+                                                 $needs_upload = 1;
+                                                 last;
+                                             }
+                                         }
+                                     }
+                                 }
+                             }
+                         }
+                     }
+                 }
+             }
+         }
+         if ($needs_upload) {
+             $extra_head .= &Apache::lonhtmlcommon::file_submissionchk_js();
+         }
+     }
+     my %body_args;
+     if (defined($found{'html'})) {
+ 	$body_args{'skip_phases'}{'head'}=1;
+     } else {
+ 	$extra_head .= &Apache::lonhtmlcommon::spellheader();
+ 	$extra_head .= &Apache::londefdef::generate_css_links();
+ 	if ($env{'request.state'} eq 'construct') {
+ 	    $extra_head.=&Apache::edit::js_change_detection().
+ 		"<script type=\"text/javascript\">\n".
+ 		"if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
+ 		&Apache::loncommon::browser_and_searcher_javascript().
+                 "\n</script>\n";
  	}
      }
-     my $body_tag_start;
-     if (!defined($found{'body'}) && $env{'request.state'} eq 'construct') {
+     my $pageheader = '';
- 	if ($env{'environment.remote'} eq 'off') {
+     if (defined($found{'body'})) {
- 	    if ($target eq 'web' || $target eq 'edit') {
+ 	$body_args{'skip_phases'}{'body'}=1;
- 		$body_tag_start=&Apache::loncommon::bodytag();
+     } elsif (!defined($found{'body'})
- 		$body_tag_start.=&Apache::lonxml::message_location();
+ 	     && $env{'request.state'} eq 'construct') {
- 	    }
+ 	if ($target eq 'web' || $target eq 'edit') {
- 	} else {
+         # Breadcrumbs for Construction Space
- 	    if ($target eq 'web' || $target eq 'edit') {
+         &Apache::lonhtmlcommon::clear_breadcrumbs();
- 		$body_tag_start=&Apache::loncommon::bodytag(undef,undef,undef,1);
+         &Apache::lonhtmlcommon::add_breadcrumb({
- 		$body_tag_start.=&Apache::lonxml::message_location();
+             'text'  => 'Construction Space',
- 	    }
+             'href'  => &Apache::loncommon::authorspace($env{'request.uri'}),
+         });
+         # breadcrumbs (and tools) will be created
+         # in start_page->bodytag->innerregister
+ # FIXME Where are we?
+ #        &Apache::lonhtmlcommon::add_breadcrumb({
+ #            'text'  => 'Problem Editing', # 'Problem Testing'
+ #            'href'  => '',
+ #        });
+         $pageheader =&Apache::loncommon::head_subbox(
+                 &Apache::loncommon::CSTR_pageheader());
  	}
      } elsif (!defined($found{'body'})) {
+ 	my %add_entries;
  	my $background=&Apache::lonxml::get_param('background',$parstack,
  						  $safeeval);
+ 	if ($background ne '' ) {
+ 	    $add_entries{'background'} = $background;
+ 	}
  	my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
  					       $safeeval);
- 	$body_tag_start=&body_tag_start($target,$background,$bgcolor);
+         if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
- 	if ( ($target eq 'web' || $target eq 'webgrade')
- 	     && $env{'request.state'} ne 'construct') {
+         $body_args{'bgcolor'}        = $bgcolor;
- 	    my ($symb,undef,undef,undef,$publicuser)=
+         # $body_args{'no_title'}       = 1;
- 		&Apache::lonxml::whichuser();
+         $body_args{'force_register'} = 1;
- 	    if ($symb eq '' && !$publicuser) {
+         $body_args{'add_entries'}    = \%add_entries;
- 		my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
+         if ( $env{'request.state'} eq   'construct') {
- 		$help=&mt("Browsing resource, all submissions are temporary.")."<br />";
+             $body_args{'only_body'}  = 1;
- 		$body_tag_start.=$help;
+         }
- 	    }
+     }
- 	}
+     $body_args{'no_auto_mt_title'} = 1;
- 	$body_tag_start.=&Apache::lonxml::message_location();
+     my $page_start = &Apache::loncommon::start_page($name,$extra_head,
+ 						    \%body_args);
+     $page_start .= $pageheader;
+     if (!defined($found{'body'})
+ 	&& $env{'request.state'} ne 'construct'
+ 	&& ($target eq 'web' || $target eq 'webgrade')) {
+ 	my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
+         if ($symb eq '' && !$publicuser) {
+             $page_start .= '<p class="LC_info">'
+                           .&mt('Browsing resource, all submissions are temporary.')
+                           .'</p>';
+         }
+     }
+     if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
+ 	$page_start .= &Apache::lonxml::message_location();
      }
      my $form_tag_start;
      if (!defined($found{'form'})) {
- 	$form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="POST" action="';
+ 	$form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
- 	my $uri=$env{'request.uri'};
+ 	my $uri = &Apache::loncommon::inhibit_menu_check(
- 	if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
+                 &Apache::lonenc::check_encrypt($env{'request.uri'}));
+         $uri = &HTML::Entities::encode($uri,'<>&"');
  	$form_tag_start.=$uri.'" ';
  	if ($target eq 'edit') {
  	    $form_tag_start.=&Apache::edit::form_change_detection();
  	}
- 	$form_tag_start.='>';
+         my ($symb,$courseid,$udom,$uname)=&Apache::lonnet::whichuser();
+         my ($path,$multiresp) =
+             &Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom);
+         if (($is_task) || ($needs_upload)) {
+             $form_tag_start .= ' onsubmit="return file_submission_check(this,'."'$path','$multiresp'".');"';
+         }
+ 	$form_tag_start.='>'."\n";
+ 	my $symb=&Apache::lonnet::symbread();
+ 	if ($symb =~ /\S/) {
+ 	    $symb=
+ 		&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
+ 	    $form_tag_start.=
+ 		"\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
+ 	}
      }
-     return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
+     return ($page_start,$form_tag_start);
  }
  #use Time::HiRes();
  sub get_resource_name {
      my ($parstack,$safeeval)=@_;
+     my $name;
      if (defined($Apache::lonhomework::name)) {
- 	return $Apache::lonhomework::name;
+ 	$name = $Apache::lonhomework::name;
-     }
+     } else {
-     my ($symb)=&Apache::lonxml::whichuser();
+ 	my ($symb)=&Apache::lonnet::whichuser();
-     my $name=&Apache::lonnet::gettitle($symb);
+ 	$name=&Apache::lonnet::gettitle($symb);
-     if ($name eq '') {
+ 	if ($name eq '') {
- 	$name=&Apache::lonnet::EXT('resource.title');
+ 	    $name=&Apache::lonnet::EXT('resource.title');
- 	if ($name eq 'con_lost') { $name = ''; }
+ 	    if ($name eq 'con_lost') { $name = ''; }
-     }
+ 	}
-     if ($name!~/\S+/) {
+ 	if ($name!~/\S+/) {
- 	$name=$env{'request.uri'};
+ 	    $name=$env{'request.uri'};
- 	$name=~s-.*/([^/]+)$-$1-;
+ 	    $name=~s-.*/([^/]+)$-$1-;
+ 	}
+ 	# The name has had html tags escaped:
+ 	$name=~s/&lt;/</gs;
+ 	$name=~s/&gt;/>/gs;
+ 	$Apache::lonhomework::name=$name;
      }
-     $Apache::lonhomework::name=$name;
      return $name;
  }
  sub setup_rndseed {
-     my ($safeeval)=@_;
+     my ($safeeval,$target)=@_;
-     my $rndseed;
+     my ($symb)=&Apache::lonnet::whichuser();
-     my ($symb)=&Apache::lonxml::whichuser();
+     my ($questiontype,$set_safespace,$rndseed);
+     if ($target eq 'analyze') {
+         $questiontype = $env{'form.grade_questiontype'};
+     }
+     unless (defined($questiontype)) {
+         $questiontype = $Apache::lonhomework::type;
+     }
      if ($env{'request.state'} eq "construct"
  	|| $symb eq ''
  	|| $Apache::lonhomework::type eq 'practice'
- Line 200  sub setup_rndseed {
+ Line 415  sub setup_rndseed {
  	    }
  	    $env{'form.rndseed'}=$rndseed;
  	}
- 	if ($env{'form.resetdata'} eq &mt('New Problem Variation') ||
+         if (($env{'request.state'} eq "construct") &&
+             ($Apache::lonhomework::type eq 'randomizetry')) {
+             my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
+             if ($tries) {
+                 $rndseed += $tries;
+             }
+             $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
+         }
+ 	if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
+ 	      && $env{'form.submitted'} eq 'yes')  ||
  	    $env{'form.newrandomization'} eq &mt('New Randomization')) {
  	    srand(time);
  	    $rndseed=int(rand(2100000000));
- Line 208  sub setup_rndseed {
+ Line 432  sub setup_rndseed {
  	    delete($env{'form.resetdata'});
  	    delete($env{'form.newrandomization'});
  	}
- 	if (defined($rndseed) && $rndseed ne int($rndseed)) {
+         $rndseed=~s/\,/\:/g;
- 	    $rndseed=join(':',&Apache::lonnet::digest($rndseed));
+         $rndseed=~s/[^\w\d\:\-]//g;
+ 	if (defined($rndseed)) {
+             my ($c1,$c2)=split(/\:/,$rndseed);
+             unless ($c2) { $c2=0; }
+             unless (($c1==int($c1)) && ($c2==int($c2))) {
+ 	       $rndseed=join(':',&Apache::lonnet::digest($rndseed));
+             }
          }
          if ($Apache::lonhomework::history{'resource.CODE'}) {
  	   $rndseed=&Apache::lonnet::rndseed();
  	}
- 	if ($safeeval) {
+         $set_safespace = 1;
- 	    &Apache::lonxml::debug("Setting rndseed to $rndseed");
+     } elsif ($questiontype eq 'randomizetry') {
- 	    &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
+         if ($target eq 'analyze') {
- 	}
+             if (defined($env{'form.grade_rndseed'})) {
+                 $rndseed = $env{'form.grade_rndseed'};
+             }
+         }
+         unless (($target eq 'analyze') && (defined($rndseed))) {
+             $rndseed=&Apache::lonnet::rndseed();
+             my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
+             if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+                 $curr_try ++;
+             }
+             if ($rndseed =~/^(\d+)[,:](\d+)$/) {
+                 $rndseed = $1;
+             }
+             if ($curr_try) {
+                 my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
+                 if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
+                     my $inc = int(($curr_try-1)/$reqtries);
+                     $rndseed += $inc;
+                 } else {
+                     $rndseed += $curr_try;
+                 }
+             }
+         }
+         $set_safespace = 1;
+     }
+     if ($set_safespace) {
+         if ($safeeval) {
+             &Apache::lonxml::debug("Setting rndseed to $rndseed");
+             &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
+         }
+     }
+     unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
+         $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
      }
      return $rndseed;
  }
- Line 229  sub remember_problem_state {
+ Line 491  sub remember_problem_state {
         <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
  }
+ sub problem_edit_action_button {
+     my ($name,$action,$accesskey,$text,$flag)=@_;
+     my $actionscript="setmode(this.form,'$action')";
+     return "\n<input type='button' name='$name' accesskey='$accesskey' value='".&mt($text)."'".
+            ($flag?&Apache::edit::submit_ask_anyway($actionscript):&Apache::edit::submit_dont_ask($actionscript))." />";
+ }
+ sub problem_edit_buttons {
+    my ($mode)=@_;
+ # Buttons that do not save
+    my $result='<div class="LC_edit_problem_discards">'.
+               &problem_edit_action_button('subdiscview','discard','d','Discard Edits and View',1);
+    if ($mode eq 'editxml') {
+        $result.=&problem_edit_action_button('subedit','edit','e','Edit',1);
+        $result.=&problem_edit_action_button('subundo','undoxml','u','Undo',1);
+        $result.=&Apache::lonhtmlcommon::dragmath_button("LC_editxmltext",1);
+    } else {
+        $result.=&problem_edit_action_button('subeditxml','editxml','x','EditXML',1);
+        $result.=&problem_edit_action_button('subundo','undo','u','Undo',1);
+    }
+    $result.="\n</div>";
+ # Buttons that save
+    $result.='<div class="LC_edit_problem_saves">';
+    if ($mode eq 'editxml') {
+        $result.=&problem_edit_action_button('subsaveedit','saveeditxml','s','Save and EditXML');
+        $result.=&problem_edit_action_button('subsaveview','saveviewxml','v','Save and View');
+    } else {
+        $result.=&problem_edit_action_button('subsaveedit','saveedit','s','Save and Edit');
+        $result.=&problem_edit_action_button('subsaveview','saveview','v','Save and View');
+    }
+    $result.="\n</div>\n";
+    return $result;
+ }
  sub problem_edit_header {
      return '<input type="hidden" name="submitted" value="edit" />'.
- 	&Apache::structuretags::remember_problem_state().'
+ 	&remember_problem_state('edit').'
-        <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
+ <div class="LC_edit_problem_header">
-        <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
+ <div class="LC_edit_problem_header_title">
-        <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
+ '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
-        <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
+ </div>'.
-        <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
+ '<input type="hidden" name="problemmode" value="saveedit" />'.
-        <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
+ &problem_edit_buttons().'
-        &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
+ <hr style="clear:both;" />
-        .'</td></tr></table>'.
+ '.&Apache::lonxml::message_location().'
-        '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
+ </div>
+ '.
+        '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
  }
  sub problem_edit_footer {
-     return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
+     return '</td></tr></table><br />
-     <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
+ <div class="LC_edit_problem_footer">
-     &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
+   <hr />'.
-     "\n</form>\n".&Apache::loncommon::endbodytag()."\n</html>";
+ &problem_edit_buttons().'
+   <hr style="clear:both;" />
+ </div>
+ '.
+     "\n</form>\n".&Apache::loncommon::end_page();
  }
  sub option {
- Line 262  sub option {
+ Line 564  sub option {
  sub problem_web_to_edit_header {
      my ($rndseed)=@_;
-     my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
+     my $result .= '<div class="LC_edit_problem_header">';
      if (!$Apache::lonhomework::parsing_a_task) {
- 	$result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
+ 	$result .=
+ 	    '<div class="LC_edit_problem_header_title">'.
+ 	    &mt('Problem Testing').
+ 	    &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
+ 	    '</div>';
+     } else {
+ 	$result .=
+ 	    '<div class="LC_edit_problem_header_title">'.
+ 	    &mt('Task Testing').
+ 	    '</div>';
      }
-     $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
-              <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
-              <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
-              <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
-               <input type="text" name="rndseed" size="10" value="'.
- 	       $rndseed.'"
-            onchange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
-              <label><input type="checkbox" name="showallfoils" ';
      my $show_all_foils_text =
  	($Apache::lonhomework::parsing_a_task) ?
- 	&mt('&nbsp;Show&nbsp;All&nbsp;Instances')
+ 	&mt('Show All Instances')
- 	: &mt('&nbsp;Show&nbsp;All&nbsp;Foils');
+ 	: &mt('Show All Foils');
+     my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
+                  .'<input type="checkbox" name="showallfoils"';
+     if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
+     $show_all.= ' /> '.$show_all_foils_text
+                .'</label></span>';
-     if (defined($env{'form.showallfoils'})) { $result.='checked="on"'; }
+     $result .= '<div class="LC_edit_problem_header_status_row">';
-     $result.= ' />'.$show_all_foils_text.
- 	&Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
- 	'</label><hr />';
      if (!$Apache::lonhomework::parsing_a_task) {
  	$result.="
- <nobr>
+ <div class='LC_edit_problem_header_row1'>
- Problem Status:
+ <span class=\"LC_nobreak\">
+ ".&mt("Problem Status:")."
  <select name='problemstate'>
    <option value=''></option>
    ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>
- Line 295  Problem Status:
+ Line 606  Problem Status:
    ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
    ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Answer")."</option>
  </select>
- </nobr>
+ </span>
- <nobr>
+ <span class=\"LC_nobreak\">
- Problem Type:
+ ".&mt("Problem Type:")."
  <select name='problemtype'>
    <option value=''></option>
    ".&option('exam'   ,'problemtype').&mt("Exam Problem")."</option>
-   ".&option('problem','problemtype').&mt("Homework problem")."</option>
+   ".&option('problem','problemtype').&mt("Homework Problem")."</option>
    ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
+   ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
+   ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
+   ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
+   ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
+   ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
  </select>
- </nobr>
+ </span>
- <nobr>
+ $show_all
- Feedback Mode:
+ </div>
+ <div class='LC_edit_problem_header_row2'>
+ <span class=\"LC_nobreak\">
+ ".&mt("Feedback Mode:")."
  <select name='problemstatus'>
    <option value=''></option>
    ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
-   ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
+   ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
+   ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
  </select>
- </nobr>
+ </span>
- <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
+ ";
- <hr />";
+     } elsif ($Apache::lonhomework::parsing_a_task) {
+ 	$result.="
+ <div class='LC_edit_problem_header_row1'>
+ <span class=\"LC_nobreak\">
+ ".&mt("Problem Status:")."
+ <select name='problemstate'>
+   <option value=''></option>
+   ".&option('CLOSED'               ,'problemstate').&mt("Closed")."</option>
+   ".&option('CAN_ANSWER'           ,'problemstate').&mt("Answerable")."</option>
+   ".&option('WEB_GRADE'            ,'problemstate').&mt("Criteria Grading")."</option>
+   ".&option('SHOW_ANSWER'          ,'problemstate').&mt("Show Feedback")."</option>
+ </select>
+ </span>
+ $show_all
+ ";
+     }
+     $result.='
+        <span class="LC_nobreak">
+        '.&mt('Apply style file: ').'
+          <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
+          <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
+        </span>
+      </div>
+      <div class="LC_edit_problem_header_row1">'.
+        &Apache::lonxml::renderingoptions().'
+      </div>
+      <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
+      <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
+      <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
+    </div>
+    <hr />
+    <div class="LC_edit_problem_header_randomize_row">
+      <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
+      <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
+      <input type="text" name="rndseed" size="24" value="'.
+ 	       $rndseed.'"
+              onchange="javascript:document.lonhomework.changerandseed.click()" />';
+     if (!$Apache::lonhomework::parsing_a_task) {
  	my $numtoanalyze=$env{'form.numtoanalyze'};
  	if (!$numtoanalyze) { $numtoanalyze=20; }
- 	$result.= '<input type="submit" name="problemmode" value='.
+ 	$result .= '<span class="LC_nobreak">'.
- 	    &mt('"Calculate answers').'" /> for
+ 	    &mt('[_1] for [_2] versions.',
-              <input type="text" name="numtoanalyze" value="'.
+ 		'<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
- 	     $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
+                 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
- 	     '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
+                ,'<input type="text" name="numtoanalyze" value="'.
- 						     '',undef,undef,300).
+ 		$numtoanalyze.'" size="5" />').
- 						     '<hr />';
+ 		&Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
-     }
+ 		'</span>';
+     }
+     $result.='
+    </div>
+    <hr />
+    <div>';
+     $result.='<input type="hidden" name="problemmode" value="view" />';
+     $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
+                'onclick="javascript:setmode(this.form,'."'edit'".')" />';
+     $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
+                'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
+     $result.='
+    </div>
+    <hr />
+    '.&Apache::lonxml::message_location().'
+ </div>';
      return $result;
  }
  sub initialize_storage {
-     %Apache::lonhomework::results=();
+     my ($given_symb) = @_;
-     %Apache::lonhomework::history=();
+     undef(%Apache::lonhomework::results);
-     my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+     undef(%Apache::lonhomework::history);
+     my ($symb,$courseid,$domain,$name) =
+ 	&Apache::lonnet::whichuser($given_symb);
+     # anonymous users (CODEd exams) have no data
+     if ($name eq 'anonymous'
+ 	&& !defined($domain)) {
+ 	return;
+     }
      if ($env{'request.state'} eq 'construct'
  	|| $symb eq ''
  	|| $Apache::lonhomework::type eq 'practice') {
  	my $namespace = $symb || $env{'request.uri'};
  	if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
- 	    $env{'form.resetdata'} eq &mt('New Problem Variation') ||
+ 	    ($env{'form.resetdata'} eq &mt('New Problem Variation')
+ 	     && $env{'form.submitted'} eq 'yes') ||
  	    $env{'form.newrandomization'} eq &mt('New Randomization')) {
  	    &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
  	    &Apache::lonxml::debug("Attempt reset");
- Line 351  sub initialize_storage {
+ Line 737  sub initialize_storage {
  	%Apache::lonhomework::history=
  	    &Apache::lonnet::restore($symb,$courseid,$domain,$name);
      }
      #ignore error conditions
      my ($temp)=keys %Apache::lonhomework::history ;
      if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
  }
- # -------------------------------------------------------------finalize_storage
+ =pod
- # Stores away the result has to a student's environment
- # checks form.grade_ for specific values, other wises stores
+ =item finalize_storage()
- # to the running users environment
- # Will increment totals for attempts, students, and corrects
+ 	Stores away the result has to a student's environment
- # if running user has student role.
+ 	checks form.grade_ for specific values, other wises stores
+ 	to the running users environment
+ 	Will increment totals for attempts, students, and corrects
+ 	if running user has student role.
+ =cut
  sub finalize_storage {
+     my ($given_symb) = @_;
      my $result;
      if (%Apache::lonhomework::results) {
  	my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
  	delete(@Apache::lonhomework::results{@remove});
- 	my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ 	my ($symb,$courseid,$domain,$name) =
+ 	    &Apache::lonnet::whichuser($given_symb);
  	if ($env{'request.state'} eq 'construct'
  	    || $symb eq ''
  	    || $Apache::lonhomework::type eq 'practice') {
- Line 380  sub finalize_storage {
+ Line 776  sub finalize_storage {
  	    $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
  					    $symb,$courseid,$domain,$name);
  	    &Apache::lonxml::debug('Store return message:'.$result);
-             if ($env{'request.role'} =~/^st/) {
+             &store_aggregates($symb,$courseid);
-                 &store_aggregates($symb,$courseid);
-             }
  	}
      } else {
  	&Apache::lonxml::debug('Nothing to store');
      }
      return $result;
  }
- use Data::Dumper;
- # -------------------------------------------------------------store_aggregates
+ =pod
- # Sends hash of values to be incremented in nohist_resourcetracker.db
- # for the course. Increments total number of attempts, unique students
+ item store_aggregates()
- # and corrects for each part for an instance of a problem, as appropriate.
+ 	Sends hash of values to be incremented in nohist_resourcetracker.db
+ 	for the course. Increments total number of attempts, unique students
+ 	and corrects for each part for an instance of a problem, as appropriate.
+ =cut
  sub store_aggregates {
      my ($symb,$courseid) = @_;
-     my %aggregate;
+     my (%aggregate,%anoncounter,%randtrycounter);
      my @parts;
      my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
      my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
- Line 407  sub store_aggregates {
+ Line 806  sub store_aggregates {
          }
      }
      foreach my $part (@parts) {
-         if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
+         if ($env{'request.role'} =~/^st/) {
- 	    eq 'APPROX_ANS' ||
+             if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
- 	    $Apache::lonhomework::results{'resource.'.$part.'.award'}
+ 	        eq 'APPROX_ANS' ||
- 	    eq 'EXACT_ANS') {
+ 	        $Apache::lonhomework::results{'resource.'.$part.'.award'}
-             $aggregate{$symb."\0".$part."\0correct"} = 1;
+ 	        eq 'EXACT_ANS') {
+                 $aggregate{$symb."\0".$part."\0correct"} = 1;
+             }
+             if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
+                 $aggregate{$symb."\0".$part."\0users"} = 1;
+             } else {
+                 my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
+                 if ($last_reset) {
+                     if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
+                         $aggregate{$symb."\0".$part."\0users"} = 1;
+                     }
+                 }
+             }
+             $aggregate{$symb."\0".$part."\0attempts"} = 1;
          }
-         if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
+         if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
-             $aggregate{$symb."\0".$part."\0users"} = 1;
+             ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
-         } else {
+             ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
-             my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
+             if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
-             if ($last_reset) {
+                 $randtrycounter{$symb."\0".$part} = 1;
-                 if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
+             } else {
-                     $aggregate{$symb."\0".$part."\0users"} = 1;
+                 $anoncounter{$symb."\0".$part} = 1;
+             }
+             my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
+             if ($needsrelease) {
+                 my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
+                 if ($curr_required eq '') {
+                     &Apache::lonnet::update_released_required($needsrelease);
+                 } else {
+                     my ($currmajor,$currminor) = split(/\./,$curr_required);
+                     my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
+                     if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
+                         &Apache::lonnet::update_released_required($needsrelease);
+                     }
                  }
              }
          }
-         $aggregate{$symb."\0".$part."\0attempts"} = 1;
      }
      if (keys (%aggregate) > 0) {
  	&Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                              $cdomain,$cname);
      }
+     if (keys(%anoncounter) > 0) {
+         &Apache::lonnet::cput('nohist_anonsurveys',\%anoncounter,
+                               $cdomain,$cname);
+     }
+     if (keys(%randtrycounter) > 0) {
+         &Apache::lonnet::cput('nohist_randomizetry',\%randtrycounter,
+                               $cdomain,$cname);
+     }
  }
  sub checkout_msg {
- Line 438  sub checkout_msg {
+ Line 869  sub checkout_msg {
                  'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
                  'checkout'=>'Check out Exam for Viewing',
  		'checkout?'=>'Check out Exam?');
+     my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
      return (<<ENDCHECKOUT);
  <h2>$lt{'resource'}</h2>
      <p>$lt{'id_expln'}</p>
- <font color="red">
+ <p class="LC_warning">$lt{'warning'}</p>
- <p>$lt{'warning'}</p>
+ <form name="checkout" method="post" action="$uri">
- </font>
- <form name="checkout" method="POST" action="$env{'request.uri'}">
  <input type="hidden" name="doescheckout" value="yes" />
  <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
  </form>
- Line 453  ENDCHECKOUT
+ Line 883  ENDCHECKOUT
  sub firstaccess_msg {
      my ($time,$symb)=@_;
-     my ($map)=&Apache::lonnet::decode_symb($symb);
+     my $result;
-     my $foldertitle=&Apache::lonnet::gettitle($map);
+     my @interval=&Apache::lonnet::EXT("resource.0.interval");
-     &Apache::lonxml::debug("map is $map title is $foldertitle");
+     if ($interval[1] eq 'map') {
-     return (<<ENDCHECKOUT);
+ 	my ($map)=&Apache::lonnet::decode_symb($symb);
- <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
+ 	my $foldertitle=&Apache::lonnet::gettitle($map);
- <form name="markaccess" method="POST" action="$env{'request.uri'}">
+ 	&Apache::lonxml::debug("map is $map title is $foldertitle");
+ 	$result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
+                              .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
+                              ,$foldertitle,$time)."</h2>";
+     } elsif ($interval[1] eq 'course') {
+ 	my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
+         $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
+                              .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
+                              ,$course,$time)."</h2>";
+     } else {
+ 	my $title=&Apache::lonnet::gettitle($symb);
+         $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
+                              .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
+                              ,$title,$time)."</h2>";
+     }
+     my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
+     my $buttontext = &mt('Show Resource');
+     my $timertext = &mt('Start Timer?');
+     $result .= (<<ENDCHECKOUT);
+ <form name="markaccess" method="post" action="$uri">
  <input type="hidden" name="markaccess" value="yes" />
- <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
+ <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
  </form>
  ENDCHECKOUT
+     return $result;
  }
  sub init_problem_globals {
- Line 474  sub init_problem_globals {
+ Line 925  sub init_problem_globals {
      if ($type eq 'problem') {
  	$Apache::inputtags::part='0';
  	@Apache::inputtags::partlist=('0');
- 	$Apache::lonhomework::problemstatus=&get_problem_status('0');
+ 	&Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
  	$Apache::lonhomework::ignore_response_errors=0;
      } elsif ($type eq 'library') {
  	$Apache::inputtags::part='';
  	@Apache::inputtags::partlist=();
- 	$Apache::lonhomework::problemstatus='';
+ 	&Apache::lonhomework::reset_show_problem_status();
  	$Apache::lonhomework::ignore_response_errors=1;
      } elsif ($type eq 'Task') {
  	$Apache::inputtags::part='0';
  	@Apache::inputtags::partlist=('0');
- 	$Apache::lonhomework::problemstatus='';
+ 	&Apache::lonhomework::reset_show_problem_status();
  	$Apache::lonhomework::ignore_response_errors=1;
      }
+     @Apache::functionplotresponse::callscripts=();
      @Apache::inputtags::responselist = ();
      @Apache::inputtags::importlist = ();
      @Apache::inputtags::previous=();
- Line 499  sub init_problem_globals {
+ Line 951  sub init_problem_globals {
      @Apache::structuretags::whileline=();
      $Apache::lonhomework::scantronmode=0;
      undef($Apache::lonhomework::name);
+     undef($Apache::lonhomework::default_type);
+     undef($Apache::lonhomework::type);
  }
  sub reset_problem_globals {
- Line 511  sub reset_problem_globals {
+ Line 964  sub reset_problem_globals {
  #detect if we try to do 2 problems in one file
  #   undef($Apache::lonhomework::parsing_a_problem);
      undef($Apache::lonhomework::name);
+     undef($Apache::lonhomework::default_type);
+     undef($Apache::lonhomework::type);
+     undef($Apache::lonhomework::scantronmode);
+     undef($Apache::lonhomework::ignore_response_errors);
+     undef(@Apache::functionplotresponse::callscripts);
+     &Apache::lonhomework::reset_show_problem_status();
  }
  sub set_problem_state {
- Line 560  sub start_problem {
+ Line 1019  sub start_problem {
  	$Apache::lonhomework::scantronmode=1;
      }
-     &initialize_storage();
      if ($target ne 'analyze') {
- 	if ($target eq 'web') {
+         my $type = &Apache::lonnet::EXT('resource.0.type');
- 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
+ 	$Apache::lonhomework::type=$type;
- 	}
-        	if ($env{'request.state'} eq 'construct') { &set_problem_state('0'); }
- 	$Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
  	if (($env{'request.state'} eq 'construct') &&
- 	    defined($env{'form.problemtype'})) {
+ 	    $env{'form.problemtype'} =~ /\S/) {
  	    $Apache::lonhomework::type=$env{'form.problemtype'};
  	}
  	&Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
- Line 585  sub start_problem {
+ Line 1040  sub start_problem {
      }
      $Apache::lonhomework::default_type = $Apache::lonhomework::type;
+     &initialize_storage();
+     if ($target ne 'analyze'
+        	&& $env{'request.state'} eq 'construct') {
+ 	&set_problem_state('0');
+     }
+     if ($target eq 'web') {
+ 	&Apache::lonxml::debug(" grading history ");
+ 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
+     }
      #added vars to the scripting enviroment
      my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
      $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
- Line 592  sub start_problem {
+ Line 1058  sub start_problem {
      my $status;
      my $accessmsg;
-     #should get back a <html> or the neccesary stuff to start XML/MathML
+     my $name= &get_resource_name($parstack,$safeeval);
-     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
+     my ($result,$form_tag_start);
- 	&page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
+     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
+ 	|| $target eq 'edit') {
+ 	($result,$form_tag_start) =
+ 	    &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
+ 			$name);
+     }
      if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
-     if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
+     if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  	$target eq 'tex') {
- 	#handle exam checkout
- 	if ($Apache::lonhomework::type eq 'exam') {
- 	    my $token=
- 		$Apache::lonhomework::history{"resource.0.outtoken"};
- 	    if (($env{'form.doescheckout'}) && (!$token)) {
- 		$token=&Apache::lonxml::maketoken();
- 		$Apache::lonhomework::history{"resource.0.outtoken"}=
- 		    $token;
- 	    }
- 	    $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
- 	}
  	if ($env{'form.markaccess'}) {
- 	    &Apache::lonnet::set_first_access('map');
+ 	    my @interval=&Apache::lonnet::EXT("resource.0.interval");
+ 	    &Apache::lonnet::set_first_access($interval[1]);
  	}
+         ($status,$accessmsg,my $slot_name,my $slot) =
+             &Apache::lonhomework::check_slot_access('0','problem');
+         push (@Apache::inputtags::status,$status);
  	#handle rand seed in construction space
- 	my $rndseed=&setup_rndseed($safeeval);
+ 	my $rndseed=&setup_rndseed($safeeval,$target);
- 	my ($symb)=&Apache::lonxml::whichuser();
+ 	my ($symb)=&Apache::lonnet::whichuser();
  	if ($env{'request.state'} ne "construct" &&
  	    ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
  	    $form_tag_start.='<input type="hidden" name="rndseed" value="'.
- Line 629  sub start_problem {
+ Line 1097  sub start_problem {
                               value="'.$env{'form.username'}.'" />';
  	    }
  	    if ($env{'request.role.adv'}) {
- 		$form_tag_start.=
+ 		$form_tag_start.= ' <label class="LC_nobreak">'
- 		    ' <label><input type="checkbox" name="showallfoils" ';
+                          .'<input type="checkbox" name="showallfoils"';
  		if (defined($env{'form.showallfoils'})) {
- 		    $form_tag_start.='checked="on"';
+ 		    $form_tag_start.=' checked="checked"';
  		}
- 		$form_tag_start.= ' />'.&mt('&nbsp;Show&nbsp;All&nbsp;Foils').
+                 $form_tag_start.= ' /> '
- 		    '</label>';
+                                  .&mt('Show All Foils')
+                                  .'</label>';
  	    }
+             if ($Apache::lonhomework::type eq 'practice') {
+                 $form_tag_start.=&practice_problem_header();
+             }
  	    $form_tag_start.='<hr />';
- 	}
+         } elsif (($env{'request.state'} ne "construct") &&
+                  ($Apache::lonhomework::type eq 'randomizetry') &&
- 	($status,$accessmsg,my $slot_name,my $slot) =
+                  ($status eq 'CAN_ANSWER')) {
- 	    &Apache::lonhomework::check_slot_access('0','problem');
+             my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
- 	push (@Apache::inputtags::status,$status);
+             my $problemstatus = &get_problem_status($Apache::inputtags::part);
+             $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
+         }
  	my $expression='$external::datestatus="'.$status.'";';
  	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
- Line 659  sub start_problem {
+ Line 1133  sub start_problem {
  	    my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
  						       $style);
  	    if ( $target eq "web" ) {
- 		$result.= $head_tag_start.'</head>';
+ 		my $msg;
- 		my $msg=$body_tag_start;
  		if ($status eq 'UNAVAILABLE') {
  		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
+                 } elsif ($status eq 'NOT_IN_A_SLOT') {
+                     $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
  		} elsif ($status ne 'NOT_YET_VIEWED') {
  		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
  		}
  		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
- 		    $msg.='The problem '.$accessmsg;
+ 		    $msg.=&mt('The problem ').$accessmsg;
  		} elsif ($status eq 'UNCHECKEDOUT') {
- 		    $msg.=&checkout_msg;
+ 		    $msg.=&checkout_msg();
  		} elsif ($status eq 'NOT_YET_VIEWED') {
  		    $msg.=&firstaccess_msg($accessmsg,$symb);
  		} elsif ($status eq 'NOT_IN_A_SLOT') {
- 		    $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
+ 		    $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
  		}
  		$result.=$msg.'<br />';
  	    } elsif ($target eq 'tex') {
  		my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
  		                    : '\begin{minipage}{\textwidth}';
- 		$result.='\begin{document}\noindent \vskip 1 mm '.
+ 		$result.='\noindent \vskip 1 mm '.
  		    $startminipage.'\vskip 0 mm';
  		if ($status eq 'UNAVAILABLE') {
  		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
- Line 691  sub start_problem {
+ Line 1166  sub start_problem {
  	    my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
  						       $style);
  	    if ($target eq 'web') {
- 		$result .= $head_tag_start.'</head>';
+ 		$result .=
- 		$result .= $body_tag_start;
+ 		    &Apache::bridgetask::proctor_validation_screen($slot);
- 		$result .= &Apache::bridgetask::proctor_validation_screen();
  	    } elsif ($target eq 'grade') {
  		&Apache::bridgetask::proctor_check_auth($slot_name,$slot,
  							'problem');
  	    }
  	} elsif ($target eq 'web') {
- 	    my $name= &get_resource_name($parstack,$safeeval);
+ 	    if ($status eq 'CAN_ANSWER'
- 	    $result.="$head_tag_start<title>$name</title></head>
+ 		&& $slot_name ne ''
-               $body_tag_start \n $form_tag_start".
+ 		&& $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
+ 		# unproctored slot access, self checkin
+ 		&Apache::bridgetask::check_in('problem',undef,undef,
+ 					      $slot_name);
+ 	    }
+ 	    $result.="\n $form_tag_start \t".
  	      '<input type="hidden" name="submitted" value="yes" />';
  	    # create a page header and exit
  	    if ($env{'request.state'} eq "construct") {
  		$result.= &problem_web_to_edit_header($env{'form.rndseed'});
+                 if ($Apache::lonhomework::type eq 'practice') {
+                     $result.= '<input type="submit" name="resetdata" '.
+                               'value="'.&mt('New Problem Variation').'" />'.
+                               &practice_problem_header().'<hr />';
+                 }
  	    }
  	    # if we are viewing someone else preserve that info
  	    if (defined $env{'form.grade_symb'}) {
- Line 713  sub start_problem {
+ Line 1197  sub start_problem {
  		    $result .= '<input type="hidden" name="grade_'.$field.
  			'" value="'.$env{"form.grade_$field"}.'" />'."\n";
  		}
+                 foreach my $field ('trial','questiontype') {
+                     if ($env{"form.grade_$field"} ne '') {
+                         $result .= '<input type="hidden" name="grade_'.$field.
+                             '" value="'.$env{"form.grade_$field"}.'" />'."\n";
+                     }
+                 }
  	    }
+             if ($env{'form.grade_imsexport'}) {
+                 $result = '';
+             }
  	} elsif ($target eq 'tex') {
  	    $result .= 'INSERTTEXFRONTMATTERHERE';
  	}
      } elsif ($target eq 'edit') {
- 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
+ 	$result .= $form_tag_start.&problem_edit_header();
- 	    &problem_edit_header();
  	$Apache::lonxml::warnings_error_header=
  	    &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
  	my $temp=&Apache::edit::insertlist($target,$token);
  	$result.=$temp;
      } elsif ($target eq 'modified') {
  	$result=$token->[4];
- 	$result.=&Apache::edit::handle_insert();
      } else {
  	# page_start returned a starting result, delete it if we don't need it
  	$result = '';
- Line 745  sub end_problem {
+ Line 1236  sub end_problem {
      }
      if ($target eq 'tex') {
  	# Figure out the front matter and replace the
  	# INSERTTEXFRONTMATTERHERE in result with it.  note that we do
  	# this in end_problem because whether or not we display due
- Line 774  sub end_problem {
+ Line 1264  sub end_problem {
  	    $allow_print_points=0;
  	}
  	my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
- 	my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
+ 	my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
  	my $toc_line='\vskip 1 mm\noindent '.$startminipage.
  	    '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
- Line 784  sub end_problem {
+ Line 1274  sub end_problem {
  	my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
  	my $duedate = POSIX::strftime("%c",localtime($duetime));
+         my $duedate_text = &mt('Due date: [_1]'
+                               ,&Apache::lonlocal::locallocaltime($duetime));
  	my $temp_file;
  	my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
- Line 815  sub end_problem {
+ Line 1307  sub end_problem {
  	    if (not $env{'request.symb'} =~ m/\.page_/) {
  		if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
  		    $frontmatter .= $begin_doc.
- 			'\textit{Due date: '.$duedate.'} '.$toc_line;
+ 			'\textit{'.$duedate_text.'} '.$toc_line;
  		} else {
  		    $frontmatter.= $begin_doc.$toc_line;
- 		    if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
+ 		    if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
+ 			$frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
+ 		    }
  		}
  	    } else {
- 		$frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
+ 		$frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
  	    }
  	} else {
  	    if (not $env{'request.symb'} =~ m/\.page_/) {
  		$frontmatter .= $begin_doc.$toc_line;
- 		if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
+ 		if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
+ 		    $frontmatter .= '\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
+ 		}
  	    } else {
- 		$frontmatter .= '\vskip 1mm \\\\\\\\';
+ 		$frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
  	    }
  	}
  	$result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
- Line 849  sub end_problem {
+ Line 1345  sub end_problem {
  	    }
  	} elsif ( ($target eq 'web' || $target eq 'tex') &&
  		  $Apache::inputtags::part eq '0' &&
- 		  $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
+ 		  $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED'
+                   && !$env{'form.grade_imsexport'}) {
  	    # if part is zero, no <part>s existed, so we need show the current
  	    # grading status
  	    my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
- Line 859  sub end_problem {
+ Line 1356  sub end_problem {
  	    (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
  	    ($target eq 'answer') || ($target eq 'tex')
  	   ) {
- 	    if ($target ne 'tex' &&
+ 	    if (($target ne 'tex') &&
- 		$env{'form.answer_output_mode'} ne 'tex') {
+ 		($env{'form.answer_output_mode'} ne 'tex') &&
+                 (!$env{'form.grade_imsexport'})) {
  		$result.="</form>";
- 		$result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
  	    }
  	    if ($target eq 'web') {
- 		$result.=&Apache::lonxml::xmlend().'</html>';
+ 		$result.= &Apache::loncommon::end_page({'discussion' => 1});
  	    } elsif ($target eq 'tex') {
  		my $endminipage = '';
  		if (not $env{'form.problem_split'}=~/yes/) {
- Line 873  sub end_problem {
+ Line 1370  sub end_problem {
  		}
                  if ($env{'form.print_discussions'} eq 'yes') {
  		    $result.=&Apache::lonxml::xmlend($target,$parser);
- 		    $result=~s/<\/html>//;
  		} else {
  		    $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
  		    if (not $env{'request.symb'} =~ m/\.page_/) {
  			$result .= $endminipage.'\end{document} ';
  		    } else {
- 			$result .= '';
+ 			$result .= $endminipage;
  		    }
  		}
  	    }
  	}
+         if ($target eq 'web') {
+            $result.=&Apache::functionplotresponse::init_script();
+         }
  	if ($target eq 'grade') {
  	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
  	    &finalize_storage();
  	}
  	if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
  	    && $env{'form.answer_output_mode'} ne 'tex') {
- 	    $result.=&Apache::lonxml::xmlend().'</html>';
+ 	    $result.=&Apache::loncommon::end_page({'discussion' => 1});
  	                        # normally we get it from above, but in CSTR
  	                        # we always show answer mode too.
  	}
- Line 906  sub end_problem {
+ Line 1405  sub end_problem {
  	$result .= &problem_edit_footer();
      } elsif ($target eq 'modified') {
  	 $result .= $token->[2];
- 	 $result.=&Apache::edit::handle_insertafter($token->[1]);
      }
      if ($env{'request.state'} eq 'construct' && $target eq 'web') {
- Line 921  sub end_problem {
+ Line 1419  sub end_problem {
  sub start_library {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
-     my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
+     my ($result,$form_tag_start);
-     if ($$tagstack[0] eq 'library') {
+     if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
  	&init_problem_globals('library');
  	$Apache::lonhomework::type='problem';
      }
      if ($target eq 'edit') {
- 	($result,$head_tag_start,$body_tag_start,$form_tag_start)=
+ 	($result,$form_tag_start)=
- 	    &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
+ 	    &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
- 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
+ 			'Edit');
- 	    &problem_edit_header();
+ 	$result.=$form_tag_start.&problem_edit_header();
  	my $temp=&Apache::edit::insertlist($target,$token);
  	$result.=$temp;
      } elsif ($target eq 'modified') {
  	$result=$token->[4];
- 	$result.=&Apache::edit::handle_insert();
+     } elsif (($target eq 'web' || $target eq 'webgrade')
-     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
+ 	     && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
- 	     $env{'request.state'} eq "construct" ) {
+ 	     && $env{'request.state'} eq "construct" ) {
- 	($result,$head_tag_start,$body_tag_start,$form_tag_start)=
- 	    &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
  	my $name=&get_resource_name($parstack,$safeeval);
- 	my $rndseed=&setup_rndseed($safeeval);
+ 	($result,$form_tag_start)=
- 	$result.="$head_tag_start<title>$name</title></head>
+ 	    &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
-               $body_tag_start \n $form_tag_start".
+ 			$name);
+ 	my $rndseed=&setup_rndseed($safeeval,$target);
+ 	$result.=" \n $form_tag_start".
  		  '<input type="hidden" name="submitted" value="yes" />';
  	$result.=&problem_web_to_edit_header($rndseed);
+         if ($Apache::lonhomework::type eq 'practice') {
+             $result.= '<input type="submit" name="resetdata" '.
+                       'value="'.&mt('New Problem Variation').'" />'.
+                       &practice_problem_header().'<hr />';
+         }
      }
      return $result;
  }
- Line 955  sub end_library {
+ Line 1458  sub end_library {
      my $result='';
      if ($target eq 'edit') {
  	$result=&problem_edit_footer();
-     } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
+     } elsif ($target eq 'web'
- 	     $env{'request.state'} eq "construct") {
+ 	     && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
- 	$result.='</form>'.&Apache::loncommon::endbodytag().
+ 	     && $env{'request.state'} eq "construct") {
- 	    &Apache::lonxml::xmlend();
+ 	$result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
+     }
+     if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
+ 	&reset_problem_globals('library');
      }
-     if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
      return $result;
  }
- Line 971  sub start_definetag {
+ Line 1476  sub start_definetag {
      my $name = $token->[2]->{'name'};
      my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
-     if ($name=~/^\//) {
+     if ($target eq 'web') {
- 	$result=
+ 	if ($name=~/^\//) {
-  '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
+ 	    $result=
-     } else {
+ 		'<br /><table class="LC_sty_end"><tr><th>'.
- 	$result=
+ 		&mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
-  '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
+ 	} else {
+ 	    $result=
+ 		'<br /><table class="LC_sty_begin"><tr><th>'.
+ 		&mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
+ 	}
+ 	$skip = &HTML::Entities::encode($skip, '<>&"');
+ 	$result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
      }
-     $skip=~s/\</\&lt\;/gs;
-     $skip=~s/\>/\&gt\;/gs;
-     $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
      return $result;
  }
- Line 993  sub start_block {
+ Line 1501  sub start_block {
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer'  ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  	my $code = $token->[2]->{'condition'};
- 	if (defined($code)) {
+ 	if (defined($code) && $code ne '') {
  	    if (!$Apache::lonxml::default_homework_loaded) {
  		&Apache::lonxml::default_homework_load($safeeval);
  	    }
- Line 1037  sub start_languageblock {
+ Line 1545  sub start_languageblock {
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  	my $include = $token->[2]->{'include'};
  	my $exclude = $token->[2]->{'exclude'};
-         my %languages=&Apache::loncommon::display_languages();
+         my @preferred_languages=&Apache::lonlocal::preferred_languages();
-         $result='1';
+ # This should not even happen, since we should at least have the server language
- 	if ($include) {
+         if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
-             $result='';
+ # Now loop over all languages in order of preference
-             foreach (split(/\,/,$include)) {
+         foreach my $preferred_language (@preferred_languages) {
-                 if ($languages{$_}) { $result='1'; }
+ # If the languageblock has no arguments, show the contents
-             }
+            $result=1;
- 	}
+            my $found=0;
-         if ($exclude) {
+ # Do we have an include argument?
-             foreach (split(/\,/,$exclude)) {
+ 	   if ($include) {
-                 if ($languages{$_}) { $result='0'; }
+ # If include is specified, by default, don't render the block
-             }
+               $result=0;
- 	}
+               foreach my $included_language (split(/\,/,$include)) {
+ # ... but if my preferred language is included, render it
+                  if ($included_language eq $preferred_language) {
+                     $result=1;
+                     $found=1;
+                  }
+               }
+ 	   }
+ # Do we have an exclude argument?
+            if ($exclude) {
+               $result=1;
+               foreach my $excluded_language (split(/\,/,$exclude)) {
+                  if ($excluded_language eq $preferred_language) {
+                     $result=0;
+                     $found=1;
+                  }
+               }
+ 	   }
+            if ($found) { last; }
+         }
  	if ( ! $result ) {
  	    my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
  						   $style);
- Line 1085  sub end_languageblock {
+ Line 1612  sub end_languageblock {
      return $result;
  }
+ {
+     my %available_texts;
+     sub start_translated {
+ 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ 	&Apache::lonxml::register('Apache::structuretags',('lang'));
+ 	undef(%available_texts);
+     }
+     sub end_translated {
+ 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ 	my $result;
+ 	#show the translation on viewable targets
+ 	if ($target eq 'web'     || $target eq 'tex' || $target eq 'webgrade'||
+ 	    # or non-viewable targets, if it's embedded in something that
+ 	    # wants the output
+ 	    (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
+ 	     && &Apache::lonxml::in_redirection() ) ) {
+ 	    my @possibilities = keys(%available_texts);
+ 	    my $which =
+ 		&Apache::loncommon::languages(\@possibilities) || 'default';
+ 	    $result = $available_texts{$which};
+ 	}
+ 	undef(%available_texts);
+ 	&Apache::lonxml::deregister('Apache::structuretags',('lang'));
+ 	return $result;
+     }
+     sub start_lang {
+ 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ 	if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
+ 	    $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
+ 	    &Apache::lonxml::startredirection();
+ 	}
+ 	return '';
+     }
+     sub end_lang {
+ 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ 	if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
+ 	    $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
+ 	    my $result = &Apache::lonxml::endredirection();
+ 	    my $which = &Apache::lonxml::get_param('which',$parstack,
+ 						   $safeeval);
+             if ($which=~/\w/) {
+                 $available_texts{$which} = $result;
+             }
+             my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
+                                                         $safeeval);
+             foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
+                 if ($language=~/\w/) {
+                     $available_texts{$language} = $result;
+                 }
+             }
+ 	}
+ 	return '';
+     }
+ }
  sub start_instructorcomment {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
-         $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
+         $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
  	if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
  	    my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
  						   $parser,$style);
- Line 1119  sub start_while {
+ Line 1706  sub start_while {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  	my $code = $token->[2]->{'condition'};
  	push( @Apache::structuretags::whileconds, $code);
- Line 1152  sub end_while {
+ Line 1739  sub end_while {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  	my $code = pop(@Apache::structuretags::whileconds);
  	my $bodytext = pop(@Apache::structuretags::whilebody);
  	my $line = pop(@Apache::structuretags::whileline);
- Line 1163  sub end_while {
+ Line 1750  sub end_while {
  	while ($return) {
  	    if (time-$starttime >
  		$Apache::lonnet::perlvar{'lonScriptTimeout'}) {
- 		#$return = 0; $error=1; next;
+ 		$return = 0; $error=1; next;
  	    }
  	    $result.=&Apache::scripttag::xmlparse($bodytext);
+ 	    if ($target eq 'grade' || $target eq 'answer' ||
+ 		$target eq 'analyze') {
+ 		# grade/answer/analyze should produce no output but if we
+ 		# are redirecting, the redirecter should know what to do
+ 		# with the output
+ 		if (!$Apache::lonxml::redirection) { undef($result); }
+ 	    }
  	    $return = &Apache::run::run($code,$safeeval);
  	}
  	if ($error) {
- 	    &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running &lt;while&gt; on line').' '.$line.'</pre>');
+ 	    &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running &lt;while&gt; on line').' '.$line.'</pre>');
  	}
      } elsif ($target eq "edit") {
  	$result.= &Apache::edit::tag_end($target,$token,'');
- Line 1186  sub end_while {
+ Line 1780  sub end_while {
  sub start_randomlist {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result;
-     if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
+     if ($target eq 'answer' || $target eq 'grade'   || $target eq 'web' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex'    || $target eq 'analyze' || $target eq 'webgrade') {
  	my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
  	my $b_parser= HTML::LCParser->new(\$body);
  	$b_parser->xml_mode(1);
- Line 1223  sub start_randomlist {
+ Line 1817  sub start_randomlist {
  	    my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
  	    $showarg--;
  	    if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
+             if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
+                 my @currlist;
+                 my $part = $Apache::inputtags::part;
+                 if ($part ne '') {
+                     if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
+                         my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
+                         if (!(grep(/^\Q$part\E$/,@currlist))) {
+                             push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
+                         }
+                     } else {
+                         push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
+                     }
+                 }
+             }
  	    for(0 .. $show) {
  		$bodytext .= "$randomlist[ $idx_arr[$_] ]";
  	    }
- Line 1276  sub ordered_show_check {
+ Line 1884  sub ordered_show_check {
      return $in_order_show;
  }
+ sub start_startpartmarker {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my $result='';
+     if ($target eq 'edit') {
+         $result=&Apache::edit::tag_start($target,$token);
+         $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
+         $result.=&Apache::edit::end_table();
+     }
+     return $result;
+ }
+ sub end_startpartmarker {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my @result;
+     if ($target eq 'edit') { $result[1]='no'; }
+     return @result;
+ }
+ sub start_endpartmarker {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my $result='';
+     if ($target eq 'edit') {
+         $result=&Apache::edit::tag_start($target,$token);
+         $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
+         $result.=&Apache::edit::end_table();
+     }
+     return $result;
+ }
+ sub end_endpartmarker {
+     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+     my @result;
+     if ($target eq 'edit') { $result[1]='no'; }
+     return @result;
+ }
  sub start_part {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      if (!$Apache::lonxml::metamode) {
- Line 1283  sub start_part {
+ Line 1934  sub start_part {
  	                                     # duedates.
      }
      my $result='';
-     my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
+     my $id= &Apache::lonxml::get_id($parstack,$safeeval);
-     if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
      $Apache::inputtags::part=$id;
      push(@Apache::inputtags::partlist,$id);
      @Apache::inputtags::response=();
      @Apache::inputtags::previous=();
      @Apache::inputtags::previous_version=();
-     $Apache::lonhomework::problemstatus=&get_problem_status($id);
+     &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
+     &Apache::response::reset_params();
      my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
      my $newtype=&Apache::lonnet::EXT("resource.$id.type");
      if ($newtype) { $Apache::lonhomework::type=$newtype; }
- Line 1337  sub start_part {
+ Line 1989  sub start_part {
  		if ($target eq 'tex') {
  		    if (not $env{'form.problem_split'}=~/yes/) {
  			if ($$tagstack[-2] eq 'td') {
- 			    $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
+ 			    $result.='\noindent \begin{minipage}{\textwidth}\noindent';
  			} else {
  			    $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
  			}
- Line 1359  sub start_part {
+ Line 2011  sub start_part {
  				    '.disableexampointprint'}) eq 'yes') {
  			$allow_print_points=0;
  		    }
- 		    if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
+ 		    if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
+ 			$result .= '\vskip 10mm\fbox{\textit{'.&mt('[quant,_1,pt,pt]',$weight ).'}}';
+ 		    }
  		} elsif ($target eq 'web') {
- 		    $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
+                     if ($status eq 'CAN_ANSWER') {
+                         my $problemstatus = &get_problem_status($Apache::inputtags::part);
+                         my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
+                         my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
+                         my $num = scalar(@Apache::inputtags::partlist)-1;
+                         if ($probrandomize eq 'randomizetry') {
+                             if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
+                                 $result .= &randomizetry_part_header($problemstatus,'none',$num);
+                             } else {
+                                 my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
+                                 if ($probrandtries ne $reqtries) {
+                                     $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
+                                 }
+                             }
+                         } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
+                             my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
+                             $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
+                         }
+                     }
+ 		    $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
  		}
  	    }
  	}
- Line 1379  sub start_part {
+ Line 2053  sub start_part {
  	    #limiting ids to only letters numbers, and space
  	    $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
  	    $result = &Apache::edit::rebuild_tag($token);
- 	    $result.=&Apache::edit::handle_insert();
  	}
      }
      return $result;
- Line 1408  sub end_part {
+ Line 2081  sub end_part {
  	     !$hidden && $in_order_show) {
  	my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
  							$target);
- 	if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
+ 	if (($Apache::lonhomework::type eq 'exam' && $target eq 'tex') ||
+              ($env{'form.grade_imsexport'})) {
  	    $gradestatus='';
  	}
  	$result.=$gradestatus;
- Line 1417  sub end_part {
+ Line 2091  sub end_part {
  	$result.=&Apache::edit::end_table();
      } elsif ($target eq 'modified') {
  	 $result .= $token->[2];
- 	 $result.=&Apache::edit::handle_insertafter($token->[1]);
      }
      pop @Apache::inputtags::status;
      $Apache::inputtags::part='';
- Line 1427  sub end_part {
+ Line 2100  sub end_part {
  sub start_preduedate {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
+     if ($target eq 'web' || $target eq 'grade'    || $target eq 'answer' ||
+ 	$target eq 'tex' || $target eq 'webgrade') {
  	&Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
  	if (!$Apache::lonhomework::scantronmode &&
  	    $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
- Line 1443  sub end_preduedate {
+ Line 2117  sub end_preduedate {
      return '';
  }
+ # In all the modes where <postanswerdate> text is
+ # displayable,  all we do is eat up the text between the start/stop
+ # tags if the conditions are not right to display it.
  sub start_postanswerdate {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
-     if ($target eq 'web' || $target eq 'grade') {
+     my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
+ 	&Apache::lonnet::allowed('pav',
+ 			   $env{'request.course.id'}.'/'.$env{'request.course.sec'});
+     if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
+ 	$target eq 'tex' ) {
  	if ($Apache::lonhomework::scantronmode ||
- 	    $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
+ 	    $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
+ 	    (($target eq 'tex') && !$pav)) {
  	    &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
  	}
-     } elsif ($target eq 'tex') {
- 	&Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
      }
      return '';
  }
- Line 1463  sub end_postanswerdate {
+ Line 2143  sub end_postanswerdate {
  sub start_notsolved {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
- 	$target eq 'tex') {
+ 	$target eq 'tex' || $target eq 'webgrade') {
  	my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
  	&Apache::lonxml::debug("not solved has :$gradestatus:");
  	if ($gradestatus =~ /^correct/ &&
- Line 1499  sub end_solved {
+ Line 2179  sub end_solved {
  sub start_problemtype {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result;
-     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+     if ($target eq 'web' || $target eq 'grade'   || $target eq 'answer' ||
- 	$target eq 'tex' || $target eq 'analyze') {
+ 	$target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
  	my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
  	if (!defined($mode)) { $mode='show'; }
  	my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
- Line 1523  sub start_problemtype {
+ Line 2203  sub start_problemtype {
  	$result .=&Apache::edit::checked_arg('When used as type(s):','for',
  					     [ ['exam','Exam/Quiz Problem'],
  					       ['survey','Survey'],
- 					       ['problem','Homework Problem'] ]
+                                                ['surveycred','Survey (with credit)'],
+                                                ['anonsurvey','Anonymous Survey'],
+                                                ['anonsurveycred','Anonymous Survey (with credit)'],
+ 					       ['problem','Homework Problem'],
+                                                ['practice','Practice Problem'],
+                                                ['randomizetry','New Randomization Each Try'] ]
  					     ,$token);
  	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
      } elsif ($target eq 'modified') {
- Line 1542  sub start_startouttext {
+ Line 2227  sub start_startouttext {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
      my @result=(''.'');
      if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
+     my $nesting =
+ 	&Apache::lonxml::set_state('outtext',
+ 				   &Apache::lonxml::get_state('outtext')+1);
+     if ($nesting > 1 && $env{'request.state'} eq 'construct') {
+ 	&Apache::lonxml::error("Nesting of &lt;startouttext /&gt; not allowed, on line ".$token->[5]);
+     }
      return (@result);
  }
- Line 1549  sub end_startouttext {
+ Line 2241  sub end_startouttext {
      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
      my $result='';
      my $text='';
      if ($target eq 'edit') {
+ 	my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
  	$text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
- 	$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
+ 	$result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
- <td>".&mt('Delete:').
+                  .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
-                  &Apache::edit::deletelist($target,$token)
+                  .&Apache::edit::deletelist($target,$token)
- 		 ."</td>
+                  .'</span></td>'
- <td>".
+ 	         .'<td align="left"><span id="math_'.$areaid.'" />'
-                  &Apache::edit::insertlist($target,$token).
+ 		 .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
+ 		 .'<span></td>'
+ 		 .'<td>'
+ 		 .&Apache::edit::insertlist($target,$token)
+ 		 .'</td>'
+ 	         .'<td align="right" valign="top">' .
+ 	         &Apache::loncommon::helpLatexCheatsheet().
  		 &Apache::edit::end_row().
-                  &Apache::edit::start_spanning_row()."\n"
+                  &Apache::edit::start_spanning_row()."\n".
- 		 . &Apache::loncommon::helpLatexCheatsheet () .
  		 &Apache::edit::editfield($token->[1],$text,"",80,8,1);
      }
      if ($target eq 'modified') {
- Line 1578  sub start_endouttext {
+ Line 2275  sub start_endouttext {
      if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
      if ($target eq "modified") {
  	$result='<endouttext />'.
- 	    &Apache::edit::handle_insertafter('startouttext'); }
+ 	    &Apache::edit::handle_insertafter('startouttext');
+     }
+     my $nesting =
+ 	&Apache::lonxml::set_state('outtext',
+ 				   &Apache::lonxml::get_state('outtext')-1);
+     if ($nesting < 0 && $env{'request.state'} eq 'construct') {
+ 	&Apache::lonxml::error(" Extraneous &lt;endouttext /&gt; not allowed on line ".$token->[5]);
+ 	&Apache::lonxml::set_state('outtext', 0);
+     }
      return $result;
  }
- Line 1611  sub start_simpleeditbutton {
+ Line 2317  sub start_simpleeditbutton {
          (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
          my $url=$env{'request.noversionuri'};
          $url=~s/\?.*$//;
- 	my ($symb) = &Apache::lonxml::whichuser();
+ 	my ($symb) = &Apache::lonnet::whichuser();
- 	$result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
+ #       Warning makes more sense and is more important on edit screen
-                 '<a href="'.$url.'/smpedit?symb='.&Apache::lonnet::escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
+ #       $result='<p class="LC_warning">'
- &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
+ #              .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
+ #              .&Apache::loncommon::help_open_topic('Caching')
+ #              .'</p>';
+         $result.=&Apache::loncommon::head_subbox(
+                  &Apache::lonhtmlcommon::start_funclist()
+                 .&Apache::lonhtmlcommon::add_item_funclist(
+                      '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
+                     .&mt('Edit').'</a>')
+                 .&Apache::lonhtmlcommon::end_funclist());
      }
      return $result;
  }
- Line 1623  sub end_simpleeditbutton {
+ Line 2338  sub end_simpleeditbutton {
      return '';
  }
+ sub practice_problem_header {
+     return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
+            '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
+            '</span>';
+ }
+ sub randomizetry_problem_header {
+     my ($problemstatus,$reqtries) = @_;
+     my ($header,$text);
+     if ($reqtries > 1) {
+         $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
+         if (($problemstatus eq 'no') ||
+             ($problemstatus eq 'no_feedback_ever')) {
+             $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
+         } else {
+             $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
+         }
+     } else {
+         $header = &mt('New Problem Variation Each Try');
+         if (($problemstatus eq 'no') ||
+             ($problemstatus eq 'no_feedback_ever')) {
+             $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
+         } else {
+             $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
+         }
+     }
+     return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
+            '<span class="LC_info">'.$text.'</span><hr />';
+ }
+ sub randomizetry_part_header {
+     my ($problemstatus,$reqtries,$num) = @_;
+     my ($header,$text);
+     if ($reqtries eq 'none') {
+         $header = &mt('No Question Variation');
+         $text = &mt('For this question there will no new variation after a try.');
+     } elsif ($reqtries > 1) {
+         $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
+         if (($problemstatus eq 'no') ||
+             ($problemstatus eq 'no_feedback_ever')) {
+             $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
+         } else {
+             $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
+         }
+     } else {
+         $header = &mt('New Question Variation For Each Try');
+         if (($problemstatus eq 'no') ||
+             ($problemstatus eq 'no_feedback_ever')) {
+             $text =  &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
+         } else {
+             $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
+         }
+     }
+     my $output;
+     if ($num > 1) {
+         $output .= '<hr />';
+     }
+     $output .=  '<span class="LC_info"><h4>'.$header.'</h4></span>'.
+                   '<span class="LC_info">'.$text.'</span><br /><br />';
+     return $output;
+ }
 ;
  __END__
+ =pod
+ =back
+ =cut

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.334
changed lines
	Added in v.1.497