--- loncom/homework/grades.pm	2013/05/10 23:31:37	1.596.2.12.2.13
+++ loncom/homework/grades.pm	2017/05/19 16:48:56	1.596.2.12.2.39
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.596.2.12.2.13 2013/05/10 23:31:37 raeburn Exp $
+# $Id: grades.pm,v 1.596.2.12.2.39 2017/05/19 16:48:56 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -391,6 +391,8 @@ sub cleanRecord {
     my $grayFont = '<span class="LC_internal_info">';
     if ($response =~ /^(option|rank)$/) {
 	my %answer=&Apache::lonnet::str2hash($answer);
+        my @answer = %answer;
+        %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
 	my ($toprow,$bottomrow);
 	foreach my $foil (@$order) {
@@ -407,6 +409,8 @@ sub cleanRecord {
 	    $bottomrow.'</tr></table></blockquote>';
     } elsif ($response eq 'match') {
 	my %answer=&Apache::lonnet::str2hash($answer);
+        my @answer = %answer;
+        %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
 	my ($toprow,$middlerow,$bottomrow);
@@ -461,10 +465,10 @@ sub cleanRecord {
 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
 	}
-	$answer =~ s-\n-<br />-g;
 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
     } elsif ( $response eq 'organic') {
-	my $result='Smile representation: "<tt>'.$answer.'</tt>"';
+        my $result=&mt('Smile representation: [_1]',
+                           '"<tt>'.&HTML::Entities::encode($answer, '"<>&').'</tt>"');
 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
 	return $result;
@@ -498,12 +502,14 @@ sub cleanRecord {
 	    $result.='</ul>';
 	    return $result;
 	}
-    } elsif ( $response =~ m/(?:numerical|formula)/) {
+    } elsif ( $response =~ m/(?:numerical|formula|custom)/) {
+        # Respect multiple input fields, see Bug #5409 
 	$answer = 
 	    &Apache::loncommon::format_previous_attempt_value('submission',
 							      $answer);
+        return $answer;
     }
-    return $answer;
+    return &HTML::Entities::encode($answer, '"<>&');
 }
 
 #-- A couple of common js functions
@@ -811,7 +817,7 @@ sub verifyreceipt {
 	'<h3><span class="LC_info">'.
 	&mt('Verifying Receipt No. [_1]',$receipt).
 	'</span></h3>'."\n".
-	'<h4>'.&mt('<b>Resource: </b>[_1]',$env{'form.probTitle'}).
+	'<h4>'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).
 	'</h4>'."\n";
 
     my ($string,$contents,$matches) = ('','',0);
@@ -908,10 +914,11 @@ sub listStudents {
 
     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($symb,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
 
-    my %lt = &Apache::lonlocal::texthash (
+    my %js_lt = &Apache::lonlocal::texthash (
 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
 		'single'   => 'Please select the student before clicking on the Next button.',
 	     );
+    &js_escape(\%js_lt);
     $request->print(<<LISTJAVASCRIPT);
 <script type="text/javascript" language="javascript">
     function checkSelect(checkBox) {
@@ -923,12 +930,12 @@ sub listStudents {
 		    ctr++;
 		}
 	    }
-	    sense = '$lt{'multiple'}';
+	    sense = '$js_lt{'multiple'}';
 	} else {
 	    if (checkBox.checked) {
 		ctr = 1;
 	    }
-	    sense = '$lt{'single'}';
+	    sense = '$js_lt{'single'}';
 	}
 	if (ctr == 0) {
 	    alert(sense);
@@ -1162,7 +1169,7 @@ LISTJAVASCRIPT
 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
-		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
+		&mt('No '.$submissions.' found for this resource for any students. ([quant,_1,student] checked for '.$submissions.')',
 		    $num_students).
 		'</span><br />';
 	}
@@ -1247,7 +1254,8 @@ sub processGroup {
 #--- Javascript to handle the submission page functionality ---
 sub sub_page_js {
     my $request = shift;
-	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
+    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
+    &js_escape(\$alertmsg);
     $request->print(<<SUBJAVASCRIPT);
 <script type="text/javascript" language="javascript">
     function updateRadio(formname,id,weight) {
@@ -1366,10 +1374,8 @@ sub sub_page_js {
 			    }
 			}
 		    }
-		    
 		}
 	    }
-	    
 	}
 	if (val == "Grade Student") {
 	    formname.showgrading.value = "yes";
@@ -1503,10 +1509,21 @@ INNERJS
 
     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
     $docopen=~s/^document\.//;
-    my %lt = &Apache::lonlocal::texthash(
+    my %js_lt = &Apache::lonlocal::texthash(
                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
                 plse => 'Please select a word or group of words from document and then click this link.',
                 adds => 'Add selection to keyword list? Edit if desired.',
+                col1 => 'red',
+                col2 => 'green',
+                col3 => 'blue',
+                siz1 => 'normal',
+                siz2 => '+1',
+                siz3 => '+2',
+                sty1 => 'normal',
+                sty2 => 'italic',
+                sty3 => 'bold',
+             );
+    my %html_js_lt = &Apache::lonlocal::texthash(
                 comp => 'Compose Message for: ',
                 incl => 'Include',
                 type => 'Type',
@@ -1520,12 +1537,15 @@ INNERJS
                 font => 'Font Size',
                 fnst => 'Font Style',
              );
+    &js_escape(\%js_lt);
+    &html_escape(\%html_js_lt);
+    &js_escape(\%html_js_lt);
     $request->print(<<SUBJAVASCRIPT);
 <script type="text/javascript" language="javascript">
 
 //===================== Show list of keywords ====================
   function keywords(formname) {
-    var nret = prompt("$lt{'keyw'}",formname.keywords.value);
+    var nret = prompt("$js_lt{'keyw'}",formname.keywords.value);
     if (nret==null) return;
     formname.keywords.value = nret;
 
@@ -1552,10 +1572,10 @@ INNERJS
     else return;
     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
     if (cleantxt=="") {
-	alert("$lt{'plse'}");
+	alert("$js_lt{'plse'}");
 	return;
     }
-    var nret = prompt("$lt{'adds'}",cleantxt);
+    var nret = prompt("$js_lt{'adds'}",cleantxt);
     if (nret==null) return;
     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
     if (document.SCORE.keywords.value != "") {
@@ -1635,16 +1655,16 @@ INNERJS
 
     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
-    pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'comp'}\"+fullname+\"<\\/span><\\/h3><br /><br />");
+    pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$html_js_lt{'comp'}\"+fullname+\"<\\/span><\\/h3><br /><br />");
 
     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
-    pDoc.write("<td><b>$lt{'type'}<\\/b><\\/td><td><b>$lt{'incl'}<\\/b><\\/td><td><b>$lt{'mesa'}<\\/td><\\/tr>");
+    pDoc.write("<td><b>$html_js_lt{'type'}<\\/b><\\/td><td><b>$html_js_lt{'incl'}<\\/b><\\/td><td><b>$html_js_lt{'mesa'}<\\/td><\\/tr>");
 }
     function displaySubject(msg,shwsel) {
     pDoc = pWin.document;
     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-    pDoc.write("<td>$lt{'subj'}<\\/td>");
+    pDoc.write("<td>$html_js_lt{'subj'}<\\/td>");
     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 }
@@ -1660,7 +1680,7 @@ INNERJS
   function newMsg(newmsg,shwsel) {
     pDoc = pWin.document;
     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-    pDoc.write("<td align=\\"center\\">$lt{'new'}<\\/td>");
+    pDoc.write("<td align=\\"center\\">$html_js_lt{'new'}<\\/td>");
     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 }
@@ -1669,8 +1689,8 @@ INNERJS
     pDoc = pWin.document;
     pDoc.write("<\\/table>");
     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
-    pDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
-    pDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
+    pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
+    pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
     pDoc.write("<\\/form>");
     pDoc.write('$end_page_msg_central');
     pDoc.close();
@@ -1684,25 +1704,34 @@ INNERJS
     var redsel = "";
     var grnsel = "";
     var blusel = "";
-    if (kwclr=="red")   {var redsel="checked"};
-    if (kwclr=="green") {var grnsel="checked"};
-    if (kwclr=="blue")  {var blusel="checked"};
+    var txtcol1 = "$js_lt{'col1'}";
+    var txtcol2 = "$js_lt{'col2'}";
+    var txtcol3 = "$js_lt{'col3'}";
+    var txtsiz1 = "$js_lt{'siz1'}";
+    var txtsiz2 = "$js_lt{'siz2'}";
+    var txtsiz3 = "$js_lt{'siz3'}";
+    var txtsty1 = "$js_lt{'sty1'}";
+    var txtsty2 = "$js_lt{'sty2'}";
+    var txtsty3 = "$js_lt{'sty3'}";
+    if (kwclr=="red")   {var redsel="checked='checked'"};
+    if (kwclr=="green") {var grnsel="checked='checked'"};
+    if (kwclr=="blue")  {var blusel="checked='checked'"};
     var sznsel = "";
     var sz1sel = "";
     var sz2sel = "";
-    if (kwsize=="0")  {var sznsel="checked"};
-    if (kwsize=="+1") {var sz1sel="checked"};
-    if (kwsize=="+2") {var sz2sel="checked"};
+    if (kwsize=="0")  {var sznsel="checked='checked'"};
+    if (kwsize=="+1") {var sz1sel="checked='checked'"};
+    if (kwsize=="+2") {var sz2sel="checked='checked'"};
     var synsel = "";
     var syisel = "";
     var sybsel = "";
-    if (kwstyle=="")    {var synsel="checked"};
-    if (kwstyle=="<i>") {var syisel="checked"};
-    if (kwstyle=="<b>") {var sybsel="checked"};
+    if (kwstyle=="")    {var synsel="checked='checked'"};
+    if (kwstyle=="<i>") {var syisel="checked='checked'"};
+    if (kwstyle=="<b>") {var sybsel="checked='checked'"};
     highlightCentral();
-    highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
-    highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
-    highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
+    highlightbody('red',txtcol1,redsel,'0',txtsiz1,sznsel,'',txtsty1,synsel);
+    highlightbody('green',txtcol2,grnsel,'+1',txtsiz2,sz1sel,'<i>',txtsty2,syisel);
+    highlightbody('blue',txtcol3,blusel,'+2',txtsiz3,sz2sel,'<b>',txtsty3,sybsel);
     highlightend();
     return;
   }
@@ -1720,31 +1749,29 @@ INNERJS
     hDoc.$docopen;
     hDoc.write('$start_page_highlight_central');
     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
-    hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'kehi'}<\\/span><\\/h3><br /><br />");
+    hDoc.write("<h1>$html_js_lt{'kehi'}<\\/h1>");
 
-    hDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
-    hDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
-    hDoc.write("<td><b>$lt{'txtc'}<\\/b><\\/td><td><b>$lt{'font'}<\\/b><\\/td><td><b>$lt{'fnst'}<\\/td><\\/tr>");
+    hDoc.write('<table border="0" width="100%"><tr style="background-color:#A1D676">');
+    hDoc.write("<th>$html_js_lt{'txtc'}<\\/th><th>$html_js_lt{'font'}<\\/th><th>$html_js_lt{'fnst'}<\\/th><\\/tr>");
   }
 
   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
     var hDoc = hwdWin.document;
-    hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
+    hDoc.write("<tr>");
     hDoc.write("<td align=\\"left\\">");
-    hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"<\\/td>");
+    hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+" \\/>&nbsp;"+clrtxt+"<\\/td>");
     hDoc.write("<td align=\\"left\\">");
-    hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"<\\/td>");
+    hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+" \\/>&nbsp;"+sztxt+"<\\/td>");
     hDoc.write("<td align=\\"left\\">");
-    hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"<\\/td>");
+    hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+" \\/>&nbsp;"+sytxt+"<\\/td>");
     hDoc.write("<\\/tr>");
   }
 
   function highlightend() { 
     var hDoc = hwdWin.document;
-    hDoc.write("<\\/table>");
-    hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
-    hDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
-    hDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
+    hDoc.write("<\\/table><br \\/>");
+    hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\" \\/>&nbsp;&nbsp;");
+    hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\" \\/><br /><br />");
     hDoc.write("<\\/form>");
     hDoc.write('$end_page_highlight_central');
     hDoc.close();
@@ -1793,7 +1820,7 @@ sub gradeBox {
     $wgt       = ($wgt > 0 ? $wgt : '1');
     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
-    my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
+    my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
     my $display_part= &get_display_part($partid,$symb);
     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 				       [$partid]);
@@ -1801,7 +1828,7 @@ sub gradeBox {
     if ($last_resets{$partid}) {
         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
     }
-    $result.=&Apache::loncommon::start_data_table_row();
+    my $result=&Apache::loncommon::start_data_table_row();
     my $ctr = 0;
     my $thisweight = 0;
     my $increment = &get_increment();
@@ -1838,8 +1865,8 @@ sub gradeBox {
 
 
     $result .= 
-	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
-    $result.=&Apache::loncommon::end_data_table_row();
+	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
+    $result.=&Apache::loncommon::end_data_table_row().'<td colspan="6">';
     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
@@ -1850,6 +1877,7 @@ sub gradeBox {
         $aggtries.'" />'."\n";
     my $res_error;
     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
+    $result.='</td>'.&Apache::loncommon::end_data_table_row();
     if ($res_error) {
         return &navmap_errormsg();
     }
@@ -2018,9 +2046,12 @@ sub submission {
     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 
     if (!&canview($usec)) {
-	$request->print('<span class="LC_warning">Unable to view requested student.('.
-			$uname.':'.$udom.' in section '.$usec.' in course id '.
-			$env{'request.course.id'}.')</span>');
+        $request->print(
+            '<span class="LC_warning">'.
+            &mt('Unable to view requested student.').
+            ' '.&mt('([_1] in section [_2] in course id [_3])',
+                        $uname.':'.$udom,$usec,$env{'request.course.id'}).
+            '</span>');
 	$request->print(&show_grading_menu_form($symb));
 	return;
     }
@@ -2043,7 +2074,7 @@ sub submission {
 	    &download_all_link($request, $symb);
 	}
 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
-			'<h4>&nbsp;'.&mt('<b>Resource: </b> [_1]',$env{'form.probTitle'}).'</h4>'."\n");
+			'<h4>&nbsp;'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).'</h4>'."\n");
 
 	# option to display problem, only once else it cause problems 
         # with the form later since the problem has a form.
@@ -2060,7 +2091,7 @@ sub submission {
 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 	}
 
-	# kwclr is the only variable that is guaranteed to be non blank 
+	# kwclr is the only variable that is guaranteed not to be blank 
         # if this subroutine has been called once.
 	my %keyhash = ();
 	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
@@ -2126,6 +2157,7 @@ sub submission {
 	if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
 
             my %lt = &Apache::lonlocal::texthash(
+                          keyh => 'Keyword Highlighting for Essays',
                           keyw => 'Keyword Options',
                           list => 'List',
                           past => 'Paste Selection to List',
@@ -2134,13 +2166,18 @@ sub submission {
 #
 # Print out the keyword options line
 #
-	    $request->print(<<KEYWORDS);
-&nbsp;<b>$lt{'keyw'}:</b>&nbsp;
-<a href="javascript:keywords(document.SCORE);" target="_self">$lt{'list'}</a>&nbsp; &nbsp;
-<a href="#" onmousedown="javascript:getSel(); return false"
- CLASS="page">$lt{'past'}</a>&nbsp; &nbsp;
-<a href="javascript:kwhighlight();" target="_self">$lt{'high'}</a><br /><br />
-KEYWORDS
+            $request->print(
+                '<div class="LC_columnSection">'
+               .'<fieldset><legend>'.$lt{'keyh'}.'</legend>'
+               .&Apache::lonhtmlcommon::funclist_from_array(
+                    ['<a href="javascript:keywords(document.SCORE);" target="_self">'.$lt{'list'}.'</a>',
+                     '<a href="#" onmousedown="javascript:getSel(); return false"
+ class="page">'.$lt{'past'}.'</a>',
+                     '<a href="javascript:kwhighlight();" target="_self">'.$lt{'high'}.'</a>'],
+                    {legend => $lt{'keyw'}})
+               .'</fieldset></div>'
+            );
+
 #
 # Load the other essays for similarity check
 #
@@ -2165,7 +2202,7 @@ KEYWORDS
     if ($perm{'vgr'}) {
         $request->print(
             &Apache::loncommon::track_student_link(
-                &mt('View recent activity'),
+                'View recent activity',
                 $uname,$udom,'check')
            .' '
         );
@@ -2229,7 +2266,7 @@ KEYWORDS
     #                  (for multi-response type part)
     #             (3) Last submission plus the parts info
     #             (4) The whole record for this student
-    if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
+
 	my ($string,$timestamp)= &get_last_submission(\%record);
 	
 	my $lastsubonly;
@@ -2252,13 +2289,14 @@ KEYWORDS
 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 		    if (exists($seenparts{$partid})) { next; }
 		    $seenparts{$partid}=1;
-		    my $submitby='<b>Part:</b> '.$display_part.
-			' <b>Collaborative submission by:</b> '.
-			'<a href="javascript:viewSubmitter(\''.
-			$env{"form.$uname:$udom:$partid:submitted_by"}.
-			'\');" target="_self">'.
-			$$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
-		    $request->print($submitby);
+                    $request->print(
+                        '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                        ' <b>'.&mt('Collaborative submission by: [_1]',
+                                   '<a href="javascript:viewSubmitter(\''.
+                                   $env{"form.$uname:$udom:$partid:submitted_by"}.
+                                   '\');" target="_self">'.
+                                   $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
+                        '<br />');
 		    next;
 		}
 		my $responsetype = $responseType->{$partid}->{$respid};
@@ -2274,7 +2312,7 @@ KEYWORDS
 		foreach my $submission (@$string) {
 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
-		    my ($ressub,$hide,$subval) = split(/:/,$submission,3);
+		    my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
 		    # Similarity check
 		    my $similar='';
                     my ($type,$trial,$rndseed);
@@ -2283,7 +2321,7 @@ KEYWORDS
                         $trial = $record{"resource.$partid.tries"};
                         $rndseed = $record{"resource.$partid.rndseed"};
                     }
-		    if($env{'form.checkPlag'}){
+		    if ($env{'form.checkPlag'}) {
 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 			    &most_similar($uname,$udom,$symb,$subval);
 			if ($osim) {
@@ -2311,9 +2349,8 @@ KEYWORDS
 		    }
 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
                                          undef,$type,$trial,$rndseed);
-		    if ($env{'form.lastSub'} eq 'lastonly' || 
-			($env{'form.lastSub'} eq 'hdgrade' && 
-			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
+                    if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' &&
+                         $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 			my $display_part=&get_display_part($partid,$symb);
                         $lastsubonly.='<div class="LC_grade_submission_part">'.
                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
@@ -2325,20 +2362,36 @@ KEYWORDS
                             if ($hide eq 'anon') {
                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
                             } else {
-                                $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
+                                $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
+                                            .'<br /><span class="LC_warning">';
+                                if(@$files == 1) {
+                                    $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
+                                } else {
+                                    $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
+                                }
+                                $lastsubonly .= '</span>';
+
                                 foreach my $file (@$files) {
                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
-                                    $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" /> '.$file.'</a>';
+                                    $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
                                 }
                             }
 			    $lastsubonly.='<br />';
 			}
                         if ($hide eq 'anon') {
-                            $lastsubonly.='<b>'.&mt('Anonymous Survey').'</b>'; 
+                            $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
                         } else {
-			    $lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
+			    $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
+                            if ($draft) {
+                                $lastsubonly.= ' <span class="LC_warning">'.&mt('Draft Copy').'</span>';
+                            }
+                            $subval =
 			        &cleanRecord($subval,$responsetype,$symb,$partid,
 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
+                            if ($responsetype eq 'essay') {
+                                $subval =~ s{\n}{<br />}g;
+                            }
+                            $lastsubonly.=$subval."\n";
                         }
 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 			$lastsubonly.='</div>';
@@ -2348,14 +2401,17 @@ KEYWORDS
 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 	}
 	$request->print($lastsubonly);
-   } elsif ($env{'form.lastSub'} eq 'datesub') {
+   if ($env{'form.lastSub'} eq 'datesub') {
 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
-    } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
+    }
+    if ($env{'form.lastSub'} =~ /^(last|all)$/) {
+        my $identifier = (&canmodify($usec)? $counter : '');
 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 								 $env{'request.course.id'},
 								 $last,'.submission',
-								 'Apache::grades::keywords_highlight'));
+								 'Apache::grades::keywords_highlight',
+                                                                 $usec,$identifier));
     }
 
     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
@@ -2393,9 +2449,9 @@ KEYWORDS
 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 	    ',\''.$msgfor.'\');" target="_self">'.
-	    &mt('Compose message to student').(scalar(@$col_fullnames) >= 1 ? 's' : '').'</a><label> ('.
+	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
-	    '<img src="'.$request->dir_config('lonIconsURL').
+	    ' <img src="'.$request->dir_config('lonIconsURL').
 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 	    '<br />&nbsp;('.
 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
@@ -2583,7 +2639,7 @@ sub get_last_submission {
             }
             unless ($hide) {
                 if (@randomize) {
-                    foreach my $id (@hidden) {
+                    foreach my $id (@randomize) {
                         if ($key =~ /^\Q$id\E/) {
                             $hide = 'rand';
                             last;
@@ -2592,9 +2648,10 @@ sub get_last_submission {
                 }
             }
 	    my ($partid,$foo) = split(/submission$/,$key);
-	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
-		'<span class="LC_warning">Draft Copy</span> ' : '';
-	    push(@string, join(':', $key, $hide, $draft.$lasthash{$key}));
+	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ? 1: 0;
+            push(@string, join(':', $key, $hide, $draft, (
+                ref($lasthash{$key}) eq 'ARRAY' ?
+                    join(',', @{$lasthash{$key}}) : $lasthash{$key}) ));
 	}
     }
     if (!@string) {
@@ -2622,16 +2679,20 @@ sub keywords_highlight {
 sub show_previous_task_version {
     my ($request,$symb) = @_;
     if ($symb eq '') {
-        $request->print("Unable to handle ambiguous references.");
-
+        $request->print(
+            '<span class="LC_error">'.
+            &mt('Unable to handle ambiguous references.').
+            '</span>');
         return '';
     }
     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
     if (!&canview($usec)) {
-        $request->print('<span class="LC_warning">Unable to view previous version for requested student.('.
-                        $uname.':'.$udom.' in section '.$usec.' in course id '.
-                        $env{'request.course.id'}.')</span>');
+        $request->print('<span class="LC_warning">'.
+                        &mt('Unable to view previous version for requested student.').
+                        ' '.&mt('([_1] in section [_2] in course id [_3])',
+                                $uname.':'.$udom,$usec,$env{'request.course.id'}).
+                        '</span>');
         return;
     }
     my $mode = 'both';
@@ -2809,16 +2870,26 @@ sub processHandGrade {
 	my $ctr = 0;
 	while ($ctr < $ngrade) {
 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
-	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$symb,$uname,$udom,$ctr);
+	    my ($errorflag,$pts,$wgt,$numhidden) = 
+                &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 	    if ($errorflag eq 'no_score') {
 		$ctr++;
 		next;
 	    }
 	    if ($errorflag eq 'not_allowed') {
-		$request->print("<span class=\"LC_warning\">Not allowed to modify grades for $uname:$udom</span>");
+                $request->print(
+                    '<span class="LC_error">'
+                   .&mt('Not allowed to modify grades for [_1]',"$uname:$udom")
+                   .'</span>');
 		$ctr++;
 		next;
 	    }
+            if ($numhidden) {
+                $request->print(
+                    '<span class="LC_info">'
+                   .&mt('For [_1]: [quant,_2,transaction] hidden',"$uname:$udom",$numhidden)
+                   .'</span><br />');
+            }
 	    my $includemsg = $env{'form.includemsg'.$ctr};
 	    my ($subject,$message,$msgstatus) = ('','','');
 	    my $restitle = &Apache::lonnet::gettitle($symb);
@@ -3050,9 +3121,14 @@ sub saveHandGrade {
     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
     my @parts_graded;
     my %newrecord  = ();
-    my ($pts,$wgt) = ('','');
+    my ($pts,$wgt,$totchg) = ('','',0);
     my %aggregate = ();
     my $aggregateflag = 0;
+    if ($env{'form.HIDE'.$newflg}) {
+        my ($version,$parts) = split(/:/,$env{'form.HIDE'.$newflg},2);
+        my $numchgs = &makehidden($version,$parts,\%record,$symb,$domain,$stuname,1);
+        $totchg += $numchgs;
+    }
     my @parts = split(/:/,$env{'form.partlist'.$newflg});
     foreach my $new_part (@parts) {
 	#collaborator ($submi may vary for different parts
@@ -3155,7 +3231,37 @@ sub saveHandGrade {
         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 			      $cdom,$cnum);
     }
-    return ('',$pts,$wgt);
+    return ('',$pts,$wgt,$totchg);
+}
+
+sub makehidden {
+    my ($version,$parts,$record,$symb,$domain,$stuname,$tolog) = @_;
+    return unless (ref($record) eq 'HASH');
+    my %modified;
+    my $numchanged = 0;
+    if (exists($record->{$version.':keys'})) {
+        my $partsregexp = $parts;
+        $partsregexp =~ s/,/|/g;
+        foreach my $key (split(/\:/,$record->{$version.':keys'})) {
+            if ($key =~ /^resource\.(?:$partsregexp)\.([^\.]+)$/) {
+                 my $item = $1;
+                 unless (($item eq 'solved') || ($item =~ /^award(|msg|ed)$/)) {
+                     $modified{$key} = $record->{$version.':'.$key};
+                 }
+            } elsif ($key =~ m{^(resource\.(?:$partsregexp)\.[^\.]+\.)(.+)$}) {
+                $modified{$1.'hidden'.$2} = $record->{$version.':'.$key};
+            } elsif ($key =~ /^(ip|timestamp|host)$/) {
+                $modified{$key} = $record->{$version.':'.$key};
+            }
+        }
+        if (keys(%modified)) {
+            if (&Apache::lonnet::putstore($env{'request.course.id'},$symb,$version,\%modified,
+                                          $domain,$stuname,$tolog) eq 'ok') {
+                $numchanged ++;
+            }
+        }
+    }
+    return $numchanged;
 }
 
 sub check_and_remove_from_queue {
@@ -3452,6 +3558,7 @@ sub viewgrades_js {
     my ($request) = shift;
 
     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
+    &js_escape(\$alertmsg);
     $request->print(<<VIEWJAVASCRIPT);
 <script type="text/javascript" language="javascript">
    function writePoint(partid,weight,point) {
@@ -3632,7 +3739,7 @@ sub viewgrades {
     &Apache::lonnet::clear_EXT_cache_status();
 
     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
-    $result.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
+    $result.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 
     #view individual student submission form - called using Javascript viewOneStudent
     $result.=&jscriptNform($symb);
@@ -3647,19 +3754,67 @@ sub viewgrades {
 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 
-    my ($common_header,$specific_header);
-    if ($env{'form.section'} eq 'all') {
-	$common_header = &mt('Assign Common Grade to Class');
-        $specific_header = &mt('Assign Grade to Specific Students in Class');
-    } elsif ($env{'form.section'} eq 'none') {
-        $common_header = &mt('Assign Common Grade to Students in no Section');
-	$specific_header = &mt('Assign Grade to Specific Students in no Section');
-    } else {
-        my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
-        $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
-	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
+    #retrieve selected groups
+    my (@groups,$group_display);
+    @groups = &Apache::loncommon::get_env_multiple('form.group');
+    if (grep(/^all$/,@groups)) {
+        @groups = ('all');
+    } elsif (grep(/^none$/,@groups)) {
+        @groups = ('none');
+    } elsif (@groups > 0) {
+        $group_display = join(', ',@groups);
+    }
+
+    my ($common_header,$specific_header,@sections,$section_display);
+    @sections = &Apache::loncommon::get_env_multiple('form.section');
+    if (grep(/^all$/,@sections)) {
+        @sections = ('all');
+        if ($group_display) {
+            $common_header = &mt('Assign Common Grade to Students in Group(s) [_1]',$group_display);
+            $specific_header = &mt('Assign Grade to Specific Students in Group(s) [_1]',$group_display);
+        } elsif (grep(/^none$/,@groups)) {
+            $common_header = &mt('Assign Common Grade to Students not assigned to any groups');
+            $specific_header = &mt('Assign Grade to Specific Students not assigned to any groups');
+        } else {
+            $common_header = &mt('Assign Common Grade to Class');
+            $specific_header = &mt('Assign Grade to Specific Students in Class');
+        }
+    } elsif (grep(/^none$/,@sections)) {
+        @sections = ('none');
+        if ($group_display) {
+            $common_header = &mt('Assign Common Grade to Students in no Section and in Group(s) [_1]',$group_display);
+            $specific_header = &mt('Assign Grade to Specific Students in no Section and in Group(s)',$group_display);
+        } elsif (grep(/^none$/,@groups)) {
+            $common_header = &mt('Assign Common Grade to Students in no Section and in no Group');
+            $specific_header = &mt('Assign Grade to Specific Students in no Section and in no Group');
+        } else {
+            $common_header = &mt('Assign Common Grade to Students in no Section');
+            $specific_header = &mt('Assign Grade to Specific Students in no Section');
+        }
+    } else {
+        $section_display = join (", ",@sections);
+        if ($group_display) {
+            $common_header = &mt('Assign Common Grade to Students in Section(s) [_1], and in Group(s) [_2]',
+                                 $section_display,$group_display);
+            $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1], and in Group(s) [_2]',
+                                   $section_display,$group_display);
+        } elsif (grep(/^none$/,@groups)) {
+            $common_header = &mt('Assign Common Grade to Students in Section(s) [_1] and no Group',$section_display);
+            $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1] and no Group',$section_display);
+        } else {
+            $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
+            $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
+        }
+    }
+    my %submit_types = &substatus_options();
+    my $submission_status = $submit_types{$env{'form.submitonly'}};
+
+    if ($env{'form.submitonly'} eq 'all') {
+        $result.= '<h3>'.$common_header.'</h3>';
+    } else {
+        $result.= '<h3>'.$common_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>'; 
     }
-    $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
+    $result .= &Apache::loncommon::start_data_table();
     #radio buttons/text box for assigning points for a section or class.
     #handles different parts of a problem
     my $res_error;
@@ -3695,8 +3850,9 @@ sub viewgrades {
 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
-	$line.= '<td><b>'.&mt('Grade Status').':</b><select name="SELVAL_'.$partid.'"'.
-	    'onchange="javascript:writeRadText(\''.$partid.'\','.
+	$line.= '<td><b>'.&mt('Grade Status').':</b>'.
+                '<select name="SELVAL_'.$partid.'" '.
+	        'onchange="javascript:writeRadText(\''.$partid.'\','.
 		$weight{$partid}.')"> '.
 	    '<option selected="selected"> </option>'.
 	    '<option value="excused">'.&mt('excused').'</option>'.
@@ -3721,8 +3877,12 @@ sub viewgrades {
 
     #table listing all the students in a section/class
     #header of table
-    $result.= '<h3>'.$specific_header.'</h3>'.
-              &Apache::loncommon::start_data_table().
+    if ($env{'form.submitonly'} eq 'all') { 
+        $result.= '<h3>'.$specific_header.'</h3>';
+    } else {
+        $result.= '<h3>'.$specific_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>';
+    }
+    $result.= &Apache::loncommon::start_data_table().
 	      &Apache::loncommon::start_data_table_header_row().
 	      '<th>'.&mt('No.').'</th>'.
 	      '<th>'.&nameUserString('header')."</th>\n";
@@ -3743,8 +3903,8 @@ sub viewgrades {
 	my $display_part=&get_display_part($partid,$symb);
 	if ($display =~ /^Partial Credit Factor/) {
 	    $result.='<th>'.
-		&mt('Score Part: [_1]<br /> (weight = [_2])',
-		    $display_part,$weight{$partid}).'</th>'."\n";
+                &mt('Score Part: [_1][_2](weight = [_3])',
+                    $display_part,'<br />',$weight{$partid}).'</th>'."\n";
 	    next;
 	    
 	} else {
@@ -3765,7 +3925,7 @@ sub viewgrades {
 
     #get info for each student
     #list all the students - with points and grade status
-    my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
+    my (undef,undef,$fullname) = &getclasslist(\@sections,'1',\@groups);
     my $ctr = 0;
     foreach (sort 
 	     {
@@ -3774,36 +3934,143 @@ sub viewgrades {
 		 }
 		 return $a cmp $b;
 	     } (keys(%$fullname))) {
-	$ctr++;
 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
-				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
+				   $_,$$fullname{$_},\@parts,\%weight,\$ctr,\%last_resets);
     }
     $result.=&Apache::loncommon::end_data_table();
     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
     $result.='<input type="button" value="'.&mt('Save').'" '.
 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
-    if (scalar(%$fullname) eq 0) {
-	my $colspan=3+scalar(@parts);
-	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
+    if ($ctr == 0) {
         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
-	$result='<span class="LC_warning">'.
-	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
-	        $section_display, $stu_status).
-	    '</span>';
+        $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>'.
+                '<span class="LC_warning">';
+        if ($env{'form.submitonly'} eq 'all') {
+            if (grep(/^all$/,@sections)) {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students with enrollment status [_1] to modify or grade.',
+                                   $stu_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students with no group assigned and with enrollment status [_1] to modify or grade.',
+                                   $stu_status);
+                } else {
+                    $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] to modify or grade.',
+                                   $group_display,$stu_status);
+                }
+            } elsif (grep(/^none$/,@sections)) {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students in no section with enrollment status [_1] to modify or grade.',
+                                   $stu_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students in no section and no group with enrollment status [_1] to modify or grade.',
+                                   $stu_status);
+                } else {
+                    $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] to modify or grade.',
+                                   $group_display,$stu_status);
+                }
+            } else {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
+                                   $section_display,$stu_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] to modify or grade.',
+                                   $section_display,$stu_status);
+                } else {
+                    $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] to modify or grade.',
+                                   $section_display,$group_display,$stu_status);
+                }
+            }
+        } else {
+            if (grep(/^all$/,@sections)) {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                   $stu_status,$submission_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students with no group assigned with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                   $stu_status,$submission_status);
+                } else {
+                    $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                   $group_display,$stu_status,$submission_status);
+                }
+            } elsif (grep(/^none$/,@sections)) {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students in no section with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                   $stu_status,$submission_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students in no section and no group with enrollment status [_1] and submission status "[_2]" to modify or grade.',
+                                   $stu_status,$submission_status);
+                } else {
+                    $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                   $group_display,$stu_status,$submission_status);
+                }
+            } else {
+                if (grep(/^all$/,@groups)) {
+                    $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                   $section_display,$stu_status,$submission_status);
+                } elsif (grep(/^none$/,@groups)) {
+                    $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+                                   $section_display,$stu_status,$submission_status);
+                } else {
+                    $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] and submission status "[_4]" to modify or grade.',
+                                   $section_display,$group_display,$stu_status,$submission_status);
+                }
+            }
+	}
+	$result .= '</span><br />';
     }
     $result.=&show_grading_menu_form($symb);
     return $result;
 }
 
-#--- call by previous routine to display each student
+#--- call by previous routine to display each student who satisfies submission filter.
 sub viewstudentgrade {
     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
     my ($uname,$udom) = split(/:/,$student);
     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
-    my %aggregates = (); 
+    my $submitonly = $env{'form.submitonly'};
+    unless (($submitonly eq 'all') || ($submitonly eq 'queued')) {
+        my %partstatus = ();
+        if (ref($parts) eq 'ARRAY') {
+            foreach my $apart (@{$parts}) {
+                my ($part,$type) = &split_part_type($apart);
+                my ($status,undef) = split(/_/,$record{"resource.$part.solved"},2);
+                $status = 'nothing' if ($status eq '');
+                $partstatus{$part}      = $status;
+                my $subkey = "resource.$part.submitted_by";
+                $partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
+            }
+            my $submitted = 0;
+            my $graded = 0;
+            my $incorrect = 0;
+            foreach my $key (keys(%partstatus)) {
+                $submitted = 1 if ($partstatus{$key} ne 'nothing');
+                $graded = 1 if ($partstatus{$key} =~ /^ungraded/);
+                $incorrect = 1 if ($partstatus{$key} =~ /^incorrect/);
+
+                my $partid = (split(/\./,$key))[1];
+                if ($partstatus{'resource.'.$partid.'.'.$key.'.submitted_by'} ne '') {
+                    $submitted = 0;
+                }
+            }
+            return if (!$submitted && ($submitonly eq 'yes' ||
+                                       $submitonly eq 'incorrect' ||
+                                       $submitonly eq 'graded'));
+            return if (!$graded && ($submitonly eq 'graded'));
+            return if (!$incorrect && $submitonly eq 'incorrect');
+        }
+    }
+    if ($submitonly eq 'queued') {
+        my ($cdom,$cnum) = split(/_/,$courseid);
+        my %queue_status =
+            &Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
+                                                    $udom,$uname);
+        return if (!defined($queue_status{'gradingqueue'}));
+    }
+    $$ctr++;
+    my %aggregates = ();
     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
-	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
-	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
+	'<input type="hidden" name="ctr'.($$ctr-1).'" value="'.$student.'" />'.
+	"\n".$$ctr.'&nbsp;</td><td>&nbsp;'.
 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 	'\');" target="_self">'.$fullname.'</a> '.
 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
@@ -3868,8 +4135,8 @@ sub editgrades {
     my ($symb)=&get_symb($request);
     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
-    $title.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
-    $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
+    $title.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
+    $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
 
     my $result= &Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
@@ -4107,6 +4374,8 @@ sub split_part_type {
 sub csvupload_javascript_reverse_associate {
     my $error1=&mt('You need to specify the username or the student/employee ID');
     my $error2=&mt('You need to specify at least one grading field');
+  &js_escape(\$error1);
+  &js_escape(\$error2);
   return(<<ENDPICK);
   function verify(vf) {
     var foundsomething=0;
@@ -4147,6 +4416,8 @@ ENDPICK
 sub csvupload_javascript_forward_associate {
     my $error1=&mt('You need to specify the username or the student/employee ID');
     my $error2=&mt('You need to specify at least one grading field');
+  &js_escape(\$error1);
+  &js_escape(\$error2);
   return(<<ENDPICK);
   function verify(vf) {
     var foundsomething=0;
@@ -4254,17 +4525,19 @@ sub csvupload_fields {
 
 sub csvuploadmap_footer {
     my ($request,$i,$keyfields) =@_;
+    my $buttontext = &mt('Assign Grades');
     $request->print(<<ENDPICK);
 </table>
 <input type="hidden" name="nfields" value="$i" />
 <input type="hidden" name="keyfields" value="$keyfields" />
-<input type="button" onclick="javascript:verify(this.form)" value="Assign Grades" /><br />
+<input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
 </form>
 ENDPICK
 }
 
 sub checkforfile_js {
     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
+    &js_escape(\$alertmsg);
     my $result =<<CSVFORMJS;
 <script type="text/javascript" language="javascript">
     function checkUpload(formname) {
@@ -4402,7 +4675,7 @@ ENDPICK
     }
     # FIXME do a check for any duplicated user ids...
     # FIXME do a check for any invalid user ids?...
-    $request->print('<input type="submit" value="Assign Grades" /><br />
+    $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
 <hr /></form>'."\n");
     $request->print(&show_grading_menu_form($symb));
     return '';
@@ -4561,6 +4834,7 @@ sub pickStudentPage {
     my ($request) = shift;
 
     my $alertmsg = &mt('Please select the student you wish to grade.');
+    &js_escape(\$alertmsg);
     $request->print(<<LISTJAVASCRIPT);
 <script type="text/javascript" language="javascript">
 
@@ -4736,9 +5010,12 @@ sub displayPage {
     &Apache::lonnet::clear_EXT_cache_status();
 
     if (!&canview($usec)) {
-	$request->print('<span class="LC_warning">'.&mt('Unable to view requested student. ([_1])',$env{'form.student'}).'</span>');
-	$request->print(&show_grading_menu_form($symb));
-	return;
+	$request->print('<span class="LC_warning">'.
+                        &mt('Unable to view requested student. ([_1])',
+                            $env{'form.student'}).
+                        '</span>');
+        $request->print(&show_grading_menu_form($symb));
+        return;
     }
     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
@@ -4852,9 +5129,11 @@ sub displayPage {
 		}
 	    } elsif ($env{'form.lastSub'} eq 'all') {
 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
+                my $identifier = (&canmodify($usec)? $prob : '');
 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 									$env{'request.course.id'},
-									'','.submission');
+									'','.submission',undef,
+                                                                        $usec,$identifier);
  
 	    }
 	    if (&canmodify($usec)) {
@@ -4907,7 +5186,7 @@ sub displaySubByDates {
 
     my $interaction;
     my $no_increment = 1;
-    my %lastrndseed;
+    my (%lastrndseed,%lasttype);
     for ($version=1;$version<=$$record{'version'};$version++) {
 	my $timestamp = 
 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
@@ -4965,11 +5244,14 @@ sub displaySubByDates {
 		        } else {
 			    $displaySub[0].=&mt('Trial: [_1]',
 					    $$record{"$where.$partid.tries"});
-                            if ($rndseed || $lastrndseed{$partid}) {
-                                if ($rndseed ne $lastrndseed{$partid}) {
+                            if (($rndseed ne '')  && ($lastrndseed{$partid} ne '')) {
+                                if (($rndseed ne $lastrndseed{$partid}) &&
+                                    (($type eq 'randomizetry') || ($lasttype{$partid} eq 'randomizetry'))) {
                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
                                 }
                             }
+                            $lastrndseed{$partid} = $rndseed;
+                            $lasttype{$partid} = $type;
 		        }
 		        my $responseType=($isTask ? 'Task'
                                               : $responseType->{$partid}->{$responseId});
@@ -5070,7 +5352,7 @@ sub updateGradeByPage {
 
     $iterator->next(); # skip the first BEGIN_MAP
     my $curRes = $iterator->next(); # for "current resource"
-    my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
+    my ($depth,$question,$prob,$changeflag,$hideflag)= (1,1,1,0,0);
     while ($depth > 0) {
         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
         if($curRes == $iterator->END_MAP) { $depth--; }
@@ -5091,6 +5373,12 @@ sub updateGradeByPage {
 	    my @displayPts=();
             my %aggregate = ();
             my $aggregateflag = 0;
+            if ($env{'form.HIDE'.$prob}) {
+                my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
+                my ($version,$parts) = split(/:/,$env{'form.HIDE'.$prob},2);
+                my $numchgs = &makehidden($version,$parts,\%record,$symbx,$udom,$uname,1);
+                $hideflag += $numchgs;
+            }
 	    foreach my $partid (@{$parts}) {
 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
@@ -5182,8 +5470,11 @@ sub updateGradeByPage {
     $studentTable.=&show_grading_menu_form($env{'form.symb'});
     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 		  &mt('The scores were changed for [quant,_1,problem].',
-		  $changeflag));
-    $request->print($grademsg.$studentTable);
+		  $changeflag).'<br />');
+    my $hidemsg=($hideflag == 0 ? '' :
+                 &mt('Submissions were marked "hidden" for [quant,_1,transaction].',
+                     $hideflag).'<br />');
+    $request->print($hidemsg.$grademsg.$studentTable);
 
     return '';
 }
@@ -5218,7 +5509,7 @@ like.
 Next each scanline is checked for any errors of either 'missing
 bubbles' (it's an error because it may have been mis-scanned
 because too light bubbling), 'double bubble' (each bubble line should
-have no more that one letter picked), invalid or duplicated CODE,
+have no more than one letter picked), invalid or duplicated CODE,
 invalid student/employee ID
 
 If the CODE option is used that determines the randomization of the
@@ -5308,6 +5599,11 @@ my %subdivided_bubble_lines;       # no.
 
 my %responsetype_per_response;     # responsetype for each response
 
+my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
+                                   # numbered response. Needed when randomorder
+                                   # or randompick are in use. Key is ID, value 
+                                   # is response number.
+
 # Save and restore the bubble lines array to the form env.
 
 
@@ -5321,12 +5617,17 @@ sub save_bubble_lines {
         $env{"form.scantron.responsetype.$line"} =
             $responsetype_per_response{$line};
     }
+    foreach my $resid (keys(%masterseq_id_responsenum)) {
+        my $line = $masterseq_id_responsenum{$resid};
+        $env{"form.scantron.residpart.$line"} = $resid;
+    }
 }
 
 
 sub restore_bubble_lines {
     my $line = 0;
     %bubble_lines_per_response = ();
+    %masterseq_id_responsenum = ();
     while ($env{"form.scantron.bubblelines.$line"}) {
 	my $value = $env{"form.scantron.bubblelines.$line"};
 	$bubble_lines_per_response{$line} = $value;
@@ -5336,28 +5637,12 @@ sub restore_bubble_lines {
             $env{"form.scantron.sub_bubblelines.$line"};
         $responsetype_per_response{$line} =
             $env{"form.scantron.responsetype.$line"};
+        my $id = $env{"form.scantron.residpart.$line"};
+        $masterseq_id_responsenum{$id} = $line;
 	$line++;
     }
 }
 
-#  Given the parsed scanline, get the response for 
-#  'answer' number n:
-
-sub get_response_bubbles {
-    my ($parsed_line, $response)  = @_;
-
-    my $bubble_line = $first_bubble_line{$response-1} +1;
-    my $bubble_lines= $bubble_lines_per_response{$response-1};
-    
-    my $selected = "";
-
-    for (my $bline = 0; $bline < $bubble_lines; $bline++) {
-	$selected .= $$parsed_line{"scantron.$bubble_line.answer"}.":";
-	$bubble_line++;
-    }
-    return $selected;
-}
-
 =pod 
 
 =item scantron_filenames
@@ -5585,11 +5870,13 @@ sub scantron_selectphase {
     my $default_form_data=&defaultFormData(&get_symb($r,1));
     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
+    &js_escape(\$alertmsg);
     $r->print('
               <script type="text/javascript" language="javascript">
     function checkUpload(formname) {
         if (formname.upfile.value == "") {
-            alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
+            alert("'.$alertmsg.'");
             return false;
         }
         formname.submit();
@@ -5687,7 +5974,7 @@ sub scantron_selectphase {
 
     &Apache::lonpickcode::code_list($r,2);
 
-    $r->print('<br /><form method="post" name="checkscantron">'.
+    $r->print('<br /><form method="post" name="checkscantron" action="">'.
              $default_form_data."\n".
              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
              &Apache::loncommon::start_data_table_header_row()."\n".
@@ -5838,8 +6125,17 @@ sub username_to_idmap {
     my ($classlist)= @_;
     my %idmap;
     foreach my $student (keys(%$classlist)) {
-	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
-	    $student;
+        my $id = $classlist->{$student}->[&Apache::loncoursedata::CL_ID];
+        unless ($id eq '') {
+            if (!exists($idmap{$id})) {
+                $idmap{$id} = $student;
+            } else {
+                my $status = $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS];
+                if ($status eq 'Active') {
+                    $idmap{$id} = $student;
+                }
+            }
+        }
     }
     return %idmap;
 }
@@ -6021,6 +6317,27 @@ sub digits_to_letters {
                        (see scantron_getfile for more information)
     just_header      - True if should not process question answers but only
                        the stuff to the left of the answers.
+    randomorder      - True if randomorder in use
+    randompick       - True if randompick in use
+    sequence         - Exam folder URL
+    master_seq       - Ref to array containing symbs in exam folder
+    symb_to_resource - Ref to hash of symbs for resources in exam folder
+                       (corresponding values are resource objects)
+    partids_by_symb  - Ref to hash of symb -> array ref of partIDs
+    orderedforcode   - Ref to hash of arrays. keys are CODEs and values
+                       are refs to an array of resource objects, ordered
+                       according to order used for CODE, when randomorder
+                       and or randompick are in use.
+    respnumlookup    - Ref to hash mapping question numbers in bubble lines
+                       for current line to question number used for same question
+                        in "Master Sequence" (as seen by Course Coordinator).
+    startline        - Ref to hash where key is question number (0 is first)
+                       and value is number of first bubble line for current 
+                       student or code-based randompick and/or randomorder.
+    totalref         - Ref of scalar used to score total number of bubble
+                       lines needed for responses in a scan line (used when
+                       randompick in use. 
+
  Returns:
    Hash containing the result of parsing the scanline
 
@@ -6065,12 +6382,12 @@ sub digits_to_letters {
 =cut
 
 sub scantron_parse_scanline {
-    my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
+    my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
+        $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
+        $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
 
     my %record;
-    my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
-    my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
-    my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
+    my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
     if (!($$scantron_config{'CODElocation'} eq 0 ||
 	  $$scantron_config{'CODElocation'} eq 'none')) {
 	if ($$scantron_config{'CODElocation'} < 0 ||
@@ -6106,10 +6423,29 @@ sub scantron_parse_scanline {
     my $questnum=0;
     my $ansnum  =1;		# Multiple 'answer lines'/question.
 
+    my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
+    if ($randompick || $randomorder) {
+        my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
+                                         $master_seq,$symb_to_resource,
+                                         $partids_by_symb,$orderedforcode,
+                                         $respnumlookup,$startline);
+        if ($total) {
+            $lastpos = $total*$$scantron_config{'Qlength'};
+        }
+        if (ref($totalref)) {
+            $$totalref = $total;
+        }
+    }
+    my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
     chomp($questions);		# Get rid of any trailing \n.
     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
     while (length($questions)) {
-	my $answers_needed = $bubble_lines_per_response{$questnum};
+        my $answers_needed;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
+        } else {
+            $answers_needed = $bubble_lines_per_response{$questnum};
+        }
         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
                              || 1;
         $questnum++;
@@ -6118,11 +6454,16 @@ sub scantron_parse_scanline {
         $questions       = substr($questions,$answer_length);
         if (length($currentquest) < $answer_length) { next; }
 
-        if ($subdivided_bubble_lines{$questnum-1} =~ /,/) {
+        my $subdivided;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
+        } else {
+            $subdivided = $subdivided_bubble_lines{$questnum-1};
+        }
+        if ($subdivided =~ /,/) {
             my $subquestnum = 1;
             my $subquestions = $currentquest;
-            my @subanswers_needed = 
-                split(/,/,$subdivided_bubble_lines{$questnum-1});  
+            my @subanswers_needed = split(/,/,$subdivided);
             foreach my $subans (@subanswers_needed) {
                 my $subans_length =
                     ($$scantron_config{'Qlength'} * $subans)  || 1;
@@ -6133,10 +6474,13 @@ sub scantron_parse_scanline {
                     ($$scantron_config{'Qon'} eq 'number')) {
                     $ansnum = &scantron_validator_lettnum($ansnum, 
                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
-                        \@alphabet,\%record,$scantron_config,$scan_data);
+                        \@alphabet,\%record,$scantron_config,$scan_data,
+                        $randomorder,$randompick,$respnumlookup);
                 } else {
                     $ansnum = &scantron_validator_positional($ansnum,
-                        $questnum,$quest_id,$subans,$currsubquest,$whichline,                        \@alphabet,\%record,$scantron_config,$scan_data);
+                        $questnum,$quest_id,$subans,$currsubquest,$whichline,
+                        \@alphabet,\%record,$scantron_config,$scan_data,
+                        $randomorder,$randompick,$respnumlookup);
                 }
                 $subquestnum ++;
             }
@@ -6145,11 +6489,13 @@ sub scantron_parse_scanline {
                 ($$scantron_config{'Qon'} eq 'number')) {
                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
                     $quest_id,$answers_needed,$currentquest,$whichline,
-                    \@alphabet,\%record,$scantron_config,$scan_data);
+                    \@alphabet,\%record,$scantron_config,$scan_data,
+                    $randomorder,$randompick,$respnumlookup);
             } else {
                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
                     $quest_id,$answers_needed,$currentquest,$whichline,
-                    \@alphabet,\%record,$scantron_config,$scan_data);
+                    \@alphabet,\%record,$scantron_config,$scan_data,
+                    $randomorder,$randompick,$respnumlookup);
             }
         }
     }
@@ -6157,9 +6503,66 @@ sub scantron_parse_scanline {
     return \%record;
 }
 
+sub get_master_seq {
+    my ($resources,$master_seq,$symb_to_resource) = @_;
+    return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
+                   (ref($symb_to_resource) eq 'HASH'));
+    my $resource_error;
+    foreach my $resource (@{$resources}) {
+        my $ressymb;
+        if (ref($resource)) {
+            $ressymb = $resource->symb();
+            push(@{$master_seq},$ressymb);
+            $symb_to_resource->{$ressymb} = $resource;
+        } else {
+            $resource_error = 1;
+            last;
+        }
+    }
+    return $resource_error;
+}
+
+sub get_respnum_lookups {
+    my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
+        $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
+    return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
+                   (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
+                   (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
+                   (ref($startline) eq 'HASH'));
+    my ($user,$scancode);
+    if ((exists($record->{'scantron.CODE'})) &&
+        (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
+        $scancode = $record->{'scantron.CODE'};
+    } else {
+        $user = &scantron_find_student($record,$scan_data,$idmap,$line);
+    }
+    my @mapresources =
+        &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
+                     $orderedforcode);
+    my $total = 0;
+    my $count = 0;
+    foreach my $resource (@mapresources) {
+        my $id = $resource->id();
+        my $symb = $resource->symb();
+        if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
+            foreach my $partid (@{$partids_by_symb->{$symb}}) {
+                my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
+                if ($respnum ne '') {
+                    $respnumlookup->{$count} = $respnum;
+                    $startline->{$count} = $total;
+                    $total += $bubble_lines_per_response{$respnum};
+                    $count ++;
+                }
+            }
+        }
+    }
+    return $total;
+}
+
 sub scantron_validator_lettnum {
     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
-        $alphabet,$record,$scantron_config,$scan_data) = @_;
+        $alphabet,$record,$scantron_config,$scan_data,$randomorder,
+        $randompick,$respnumlookup) = @_;
 
     # Qon 'letter' implies for each slot in currquest we have:
     #    ? or * for doubles, a letter in A-Z for a bubble, and
@@ -6178,19 +6581,23 @@ sub scantron_validator_lettnum {
         $matchon = '\d';
     }
     my $occurrences = 0;
-    if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
+    my $responsenum = $questnum-1;
+    if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+       $responsenum = $respnumlookup->{$questnum-1}
+    }
+    if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+        ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
         my @singlelines = split('',$currquest);
         foreach my $entry (@singlelines) {
             $occurrences = &occurence_count($entry,$matchon);
             if ($occurrences > 1) {
                 last;
             }
-        } 
+        }
     } else {
         $occurrences = &occurence_count($currquest,$matchon); 
     }
@@ -6238,7 +6645,8 @@ sub scantron_validator_lettnum {
 
 sub scantron_validator_positional {
     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
-        $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_;
+        $whichline,$alphabet,$record,$scantron_config,$scan_data,
+        $randomorder,$randompick,$respnumlookup) = @_;
 
     # Otherwise there's a positional notation;
     # each bubble line requires Qlength items, and there are filled in
@@ -6280,12 +6688,16 @@ sub scantron_validator_positional {
         #  record all the bubbles filled in as well as the
         #  fact this response consists of multiple bubbles.
         #
-        if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
+        my $responsenum = $questnum-1;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $responsenum = $respnumlookup->{$questnum-1}
+        }
+        if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+            ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
             my $doubleerror = 0;
             while (($currquest >= $$scantron_config{'Qlength'}) && 
                    (!$doubleerror)) {
@@ -6467,7 +6879,11 @@ sub scantron_process_corrections {
 	}
     }
     if ($err) {
-	$r->print("<span class=\"LC_warning\">Unable to accept last correction, an error occurred :$errmsg:</span>");
+	$r->print(
+            '<p class="LC_error">'
+           .&mt('Unable to accept last correction, an error occurred: [_1]',
+                $errmsg)
+           .'</p>');
     } else {
 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 	&scantron_putfile($scanlines,$scan_data);
@@ -6589,7 +7005,7 @@ sub scantron_warning_screen {
 	$scantron_config{'CODEstart'} &&
 	$scantron_config{'CODElength'}) {
 	$CODElist=$env{'form.scantron_CODElist'};
-	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">None</span>'; }
+	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">'.&mt('None').'</span>'; }
 	$CODElist=
 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
@@ -6603,7 +7019,7 @@ sub scantron_warning_screen {
     return ('
 <p>
 <span class="LC_warning">
-'.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
+'.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
 </p>
 <table>
 <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
@@ -6692,9 +7108,11 @@ SCANTRONFORM
            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
        $chunk .=
            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
+       $chunk .=
+           '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
        $result .= $chunk;
        $line++;
-   }
+    }
     return $result;
 }
 
@@ -6716,7 +7134,7 @@ sub scantron_validate_file {
     if (!$symb) {return '';}
     my $default_form_data=&defaultFormData($symb);
     
-    # do the detection of only doing skipped records first befroe we delete
+    # do the detection of only doing skipped records first before we delete
     # them when doing the corrections reset
     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 	&reset_skipping_status();
@@ -6767,6 +7185,7 @@ sub scantron_validate_file {
     while (!$stop && $currentphase < scalar(@validate_phases)) {
 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 	$r->rflush();
+
 	my $which="scantron_validate_".$validate_phases[$currentphase];
 	{
 	    no strict 'refs';
@@ -7261,7 +7680,8 @@ sub scantron_validate_ID {
 
 
 sub scantron_get_correction {
-    my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
+    my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
+        $randomorder,$randompick,$respnumlookup,$startline)=@_;
 #FIXME in the case of a duplicated ID the previous line, probably need
 #to show both the current line and the previous one and allow skipping
 #the previous one or the current one
@@ -7397,7 +7817,8 @@ ENDSCRIPT
 	# The form field scantron_questions is acutally a list of line numbers.
 	# represented by this form so:
 
-	my $line_list = &questions_to_line_list($arg);
+	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                $respnumlookup,$startline);
 
 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 		  $line_list.'" />');
@@ -7405,7 +7826,9 @@ ENDSCRIPT
 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 	foreach my $question (@{$arg}) {
 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
-                                                   $scan_record, $error);
+                                                   $scan_record, $error,
+                                                   $randomorder,$randompick,
+                                                   $respnumlookup,$startline);
             push(@lines_to_correct,@linenums);
 	}
         $r->print(&verify_bubbles_checked(@lines_to_correct));
@@ -7419,13 +7842,16 @@ ENDSCRIPT
 	# a list of question numbers. Therefore:
 	#
 	
-	my $line_list = &questions_to_line_list($arg);
+	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                $respnumlookup,$startline);
 
 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 		  $line_list.'" />');
 	foreach my $question (@{$arg}) {
 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
-                                                   $scan_record, $error);
+                                                   $scan_record, $error,
+                                                   $randomorder,$randompick,
+                                                   $respnumlookup,$startline);
             push(@lines_to_correct,@linenums);
 	}
         $r->print(&verify_bubbles_checked(@lines_to_correct));
@@ -7439,6 +7865,7 @@ sub verify_bubbles_checked {
     my (@ansnums) = @_;
     my $ansnumstr = join('","',@ansnums);
     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
+    &js_escape(\$warning);
     my $output = (<<ENDSCRIPT);
 <script type="text/javascript">
 function verify_bubble_radio(form) {
@@ -7478,12 +7905,20 @@ used to fill in the scantron_questions f
 
   Arguments:
      questions    - Reference to an array of questions.
+     randomorder  - True if randomorder in use.
+     randompick   - True if randompick in use.
+     respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                     for current line to question number used for same question
+                     in "Master Seqence" (as seen by Course Coordinator).
+     startline    - Reference to hash where key is question number (0 is first)
+                    and key is number of first bubble line for current student
+                    or code-based randompick and/or randomorder.
 
 =cut
 
 
 sub questions_to_line_list {
-    my ($questions) = @_;
+    my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
     my @lines;
 
     foreach my $item (@{$questions}) {
@@ -7492,8 +7927,16 @@ sub questions_to_line_list {
         if ($item =~ /^(\d+)\.(\d+)$/) {
             $question = $1;
             my $subquestion = $2;
-            $first = $first_bubble_line{$question-1} + 1;
-            my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
+            my $responsenum = $question-1;
+            if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                $responsenum = $respnumlookup->{$question-1};
+                if (ref($startline) eq 'HASH') {
+                    $first = $startline->{$question-1} + 1;
+                }
+            } else {
+                $first = $first_bubble_line{$responsenum} + 1;
+            }
+            my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
             my $subcount = 1;
             while ($subcount<$subquestion) {
                 $first += $subans[$subcount-1];
@@ -7501,8 +7944,16 @@ sub questions_to_line_list {
             }
             $count = $subans[$subquestion-1];
         } else {
-	    $first   = $first_bubble_line{$question-1} + 1;
-	    $count   = $bubble_lines_per_response{$question-1};
+            my $responsenum = $question-1;
+            if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                $responsenum = $respnumlookup->{$question-1};
+                if (ref($startline) eq 'HASH') {
+                    $first = $startline->{$question-1} + 1;
+                }
+            } else {
+                $first = $first_bubble_line{$responsenum} + 1;
+            }
+            $count   = $bubble_lines_per_response{$responsenum};
         }
         $last = $first+$count-1;
         push(@lines, ($first..$last));
@@ -7524,6 +7975,14 @@ for multi and missing bubble cases).
    $scan_config - The scantron file configuration hash.
    $scan_record - Reference to the hash that has the the parsed scanlines.
    $error       - Type of error
+   $randomorder - True if randomorder in use.
+   $randompick  - True if randompick in use.
+   $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                    for current line to question number used for same question
+                    in "Master Seqence" (as seen by Course Coordinator).
+   $startline   - Reference to hash where key is question number (0 is first)
+                  and value is number of first bubble line for current student
+                  or code-based randompick and/or randomorder.
 
  Implicit inputs:
    %bubble_lines_per_response   - Starting line numbers for each question.
@@ -7548,15 +8007,26 @@ for multi and missing bubble cases).
 =cut
 
 sub prompt_for_corrections {
-    my ($r, $question, $scan_config, $scan_record, $error) = @_;
+    my ($r, $question, $scan_config, $scan_record, $error, $randomorder,
+        $randompick, $respnumlookup, $startline) = @_;
     my ($current_line,$lines);
     my @linenums;
     my $questionnum = $question;
+    my ($first,$responsenum);
     if ($question =~ /^(\d+)\.(\d+)$/) {
         $question = $1;
-        $current_line = $first_bubble_line{$question-1} + 1 ;
         my $subquestion = $2;
-        my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
+        if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+            $responsenum = $respnumlookup->{$question-1};
+            if (ref($startline) eq 'HASH') {
+                $first = $startline->{$question-1};
+            }
+        } else {
+            $responsenum = $question-1;
+            $first = $first_bubble_line{$responsenum};
+        }
+        $current_line = $first + 1 ;
+        my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
         my $subcount = 1;
         while ($subcount<$subquestion) {
             $current_line += $subans[$subcount-1];
@@ -7564,25 +8034,34 @@ sub prompt_for_corrections {
         }
         $lines = $subans[$subquestion-1];
     } else {
-        $current_line = $first_bubble_line{$question-1} + 1 ;
-        $lines        = $bubble_lines_per_response{$question-1};
+        if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+            $responsenum = $respnumlookup->{$question-1};
+            if (ref($startline) eq 'HASH') {
+                $first = $startline->{$question-1};
+            }
+        } else {
+            $responsenum = $question-1;
+            $first = $first_bubble_line{$responsenum};
+        }
+        $current_line = $first + 1;
+        $lines        = $bubble_lines_per_response{$responsenum};
     }
     if ($lines > 1) {
         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
-        if (($responsetype_per_response{$question-1} eq 'essayresponse') ||
-            ($responsetype_per_response{$question-1} eq 'formularesponse') ||
-            ($responsetype_per_response{$question-1} eq 'stringresponse') ||
-            ($responsetype_per_response{$question-1} eq 'imageresponse') ||
-            ($responsetype_per_response{$question-1} eq 'reactionresponse') ||
-            ($responsetype_per_response{$question-1} eq 'organicresponse')) {
-            $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
+        if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+            ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
+            $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
         } else {
             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
         }
     }
     for (my $i =0; $i < $lines; $i++) {
         my $selected = $$scan_record{"scantron.$current_line.answer"};
-	&scantron_bubble_selector($r,$scan_config,$current_line, 
+	&scantron_bubble_selector($r,$scan_config,$current_line,
 	        		  $questionnum,$error,split('', $selected));
         push(@linenums,$current_line);
 	$current_line++;
@@ -7836,11 +8315,42 @@ sub scantron_validate_doublebubble {
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my (undef,undef,$sequence)=
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
 
     #get scantron line setup
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
     my ($scanlines,$scan_data)=&scantron_getfile();
+
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    unless (ref($navmap)) {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+    my $map=$navmap->getResourceByUrl($sequence);
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+
     my $nav_error;
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+        if ($randomorder || $randompick) {
+            $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+            if ($nav_error) {
+                $r->print(&navmap_errormsg());
+                return(1,$currentphase);
+            }
+            &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                    \%grader_randomlists_by_symb,$bubbles_per_row);
+        }
+    } else {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -7851,11 +8361,15 @@ sub scantron_validate_doublebubble {
 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 	if ($line=~/^[\s\cz]*$/) { next; }
 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
-						 $scan_data);
+						 $scan_data,undef,\%idmap,$randomorder,
+                                                 $randompick,$sequence,\@master_seq,
+                                                 \%symb_to_resource,\%grader_partids_by_symb,
+                                                 \%orderedforcode,\%respnumlookup,\%startline);
 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 				 'doublebubble',
-				 $$scan_record{'scantron.doubleerror'});
+				 $$scan_record{'scantron.doubleerror'},
+                                 $randomorder,$randompick,\%respnumlookup,\%startline);
     	return (1,$currentphase);
     }
     return (0,$currentphase+1);
@@ -7894,12 +8408,14 @@ sub scantron_get_maxbubble {
     %first_bubble_line         = ();
     %subdivided_bubble_lines   = ();
     %responsetype_per_response = ();
+    %masterseq_id_responsenum  = ();
 
     my $response_number = 0;
     my $bubble_line     = 0;
     foreach my $resource (@resources) {
+        my $resid = $resource->id();
         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
-                                                          $udom,$bubbles_per_row);
+                                                          $udom,undef,$bubbles_per_row);
         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 	    foreach my $part_id (@{$parts}) {
                 my $lines;
@@ -7948,6 +8464,7 @@ sub scantron_get_maxbubble {
 	        $bubble_lines_per_response{$response_number} = $lines;
                 $responsetype_per_response{$response_number} = 
                     $analysis->{$part_id.'.type'};
+                $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;
 	        $response_number++;
 
 	        $bubble_line +=  $lines;
@@ -7980,21 +8497,59 @@ sub scantron_validate_missingbubbles {
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my (undef,undef,$sequence)=
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
 
     #get scantron line setup
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
     my ($scanlines,$scan_data)=&scantron_getfile();
+
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    unless (ref($navmap)) {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
+    my $map=$navmap->getResourceByUrl($sequence);
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+
     my $nav_error;
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+        if ($randomorder || $randompick) {
+            $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+            if ($nav_error) {
+                $r->print(&navmap_errormsg());
+                return(1,$currentphase);
+            }
+            &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                    \%grader_randomlists_by_symb,$bubbles_per_row);
+        }
+    } else {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
+
     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
     if ($nav_error) {
+        $r->print(&navmap_errormsg());
         return(1,$currentphase);
     }
+
     if (!$max_bubble) { $max_bubble=2**31; }
     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 	if ($line=~/^[\s\cz]*$/) { next; }
-	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
-						 $scan_data);
+        my $scan_record =
+            &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
+                                     $randomorder,$randompick,$sequence,\@master_seq,
+                                     \%symb_to_resource,\%grader_partids_by_symb,
+                                     \%orderedforcode,\%respnumlookup,\%startline);
 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 	my @to_correct;
 	
@@ -8003,28 +8558,45 @@ sub scantron_validate_missingbubbles {
 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
             my $lastbubble;
             if ($missing =~ /^(\d+)\.(\d+)$/) {
-               my $question = $1;
-               my $subquestion = $2;
-               if (!defined($first_bubble_line{$question -1})) { next; }
-               my $first = $first_bubble_line{$question-1};
-               my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
-               my $subcount = 1;
-               while ($subcount<$subquestion) {
-                   $first += $subans[$subcount-1];
-                   $subcount ++;
-               }
-               my $count = $subans[$subquestion-1];
-               $lastbubble = $first + $count;
+                my $question = $1;
+                my $subquestion = $2;
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$question-1};
+                    $first = $startline{$question-1};
+                } else {
+                    $responsenum = $question-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+                my $subcount = 1;
+                while ($subcount<$subquestion) {
+                    $first += $subans[$subcount-1];
+                    $subcount ++;
+                }
+                my $count = $subans[$subquestion-1];
+                $lastbubble = $first + $count;
             } else {
-                if (!defined($first_bubble_line{$missing - 1})) { next; }
-                $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1};
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$missing-1};
+                    $first = $startline{$missing-1};
+                } else {
+                    $responsenum = $missing-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                $lastbubble = $first + $bubble_lines_per_response{$responsenum};
             }
             if ($lastbubble > $max_bubble) { next; }
 	    push(@to_correct,$missing);
 	}
 	if (@to_correct) {
 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
-				     $line,'missingbubble',\@to_correct);
+				     $line,'missingbubble',\@to_correct,
+                                     $randomorder,$randompick,\%respnumlookup,
+                                     \%startline);
 	    return (1,$currentphase);
 	}
 
@@ -8063,7 +8635,7 @@ sub hand_bubble_option {
         return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
                &mt('If you have already graded these by bubbling sheets to indicate points awarded, [_1]what point value is assigned to a filled last bubble in each row?','<br />').
                '<label><input type="radio" name="scantron_lastbubblepoints" value="'.$bubbles_per_row.'" checked="checked" />'.&mt('[quant,_1,point]',$bubbles_per_row).'</label>&nbsp;'.&mt('or').'&nbsp;'.
-               '<label><input type="radio" name="scantron_lastbubblepoints" value="0"/>0 points</label></p>';
+               '<label><input type="radio" name="scantron_lastbubblepoints" value="0" />'.&mt('0 points').'</label></p>';
     }
     return;
 }
@@ -8079,8 +8651,7 @@ sub scantron_process_students {
     my $default_form_data=&defaultFormData($symb);
 
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
-    my $bubbles_per_row =
-        &bubblesheet_bubbles_per_row(\%scantron_config);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
     my ($scanlines,$scan_data)=&scantron_getfile();
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
@@ -8088,43 +8659,28 @@ sub scantron_process_students {
     unless (ref($navmap)) {
         $r->print(&navmap_errormsg());
         return '';
-    }  
+    }
     my $map=$navmap->getResourceByUrl($sequence);
-    my $randomorder;
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb);
     if (ref($map)) {
         $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+    } else {
+        $r->print(&navmap_errormsg());
+        return '';
     }
+    my $nav_error;
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb,%ordered);
-    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
-                            \%grader_randomlists_by_symb,$bubbles_per_row);
-    my ($resource_error,%symb_to_resource,@master_seq);
-    foreach my $resource (@resources) {
-        my $ressymb;
-        if (ref($resource)) {
-            $ressymb = $resource->symb();
-            push(@master_seq,$ressymb);
-            $symb_to_resource{$ressymb} = $resource;
-        } else {
-            $resource_error = 1;
-            last;
-        }
-        my ($analysis,$parts) =
-            &scantron_partids_tograde($resource,$env{'request.course.id'},
-                                      $env{'user.name'},$env{'user.domain'},
-                                      1,$bubbles_per_row);
-        $grader_partids_by_symb{$ressymb} = $parts;
-        if (ref($analysis) eq 'HASH') {
-            if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
-                $grader_randomlists_by_symb{$ressymb} = 
-                    $analysis->{'parts_withrandomlist'};
-            }
+    if ($randomorder || $randompick) {
+        $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+        if ($nav_error) {
+            $r->print(&navmap_errormsg());
+            return '';
         }
     }
-    if ($resource_error) {
-        $r->print(&navmap_errormsg());
-        return '';
-    }
+    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                            \%grader_randomlists_by_symb,$bubbles_per_row);
 
     my ($uname,$udom);
     my $result= <<SCANTRONFORM;
@@ -8147,7 +8703,6 @@ SCANTRONFORM
     my $i=-1;
     my $started;
 
-    my $nav_error;
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -8167,6 +8722,7 @@ SCANTRONFORM
 
     my %lettdig = &letter_to_digits();
     my $numletts = scalar(keys(%lettdig));
+    my %orderedforcode;
 
     while ($i<$scanlines->{'count'}) {
  	($uname,$udom)=('','');
@@ -8178,8 +8734,15 @@ SCANTRONFORM
 						     'last student');
 	}
 	$started=1;
+        my %respnumlookup = ();
+        my %startline = ();
+        my $total;
  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
- 						 $scan_data);
+ 						 $scan_data,undef,\%idmap,$randomorder,
+                                                 $randompick,$sequence,\@master_seq,
+                                                 \%symb_to_resource,\%grader_partids_by_symb,
+                                                 \%orderedforcode,\%respnumlookup,\%startline,
+                                                 \$total);
  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
  					      \%idmap,$i)) {
   	    &scantron_add_delay(\@delayqueue,$line,
@@ -8204,10 +8767,10 @@ SCANTRONFORM
         }
 
         my @mapresources = @resources;
-        if ($randomorder) {
+        if ($randomorder || $randompick) {
             @mapresources =
-                &users_order($user,$scancode,$sequence,\@master_seq,\%ordered,
-                             \%symb_to_resource);
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
         }
         my (%partids_by_symb,$res_error);
         foreach my $resource (@mapresources) {
@@ -8244,7 +8807,9 @@ SCANTRONFORM
 	
         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
                                    \@mapresources,\%partids_by_symb,
-                                   $bubbles_per_row) eq 'ssi_error') {
+                                   $bubbles_per_row,$randomorder,$randompick,
+                                   \%respnumlookup,\%startline) 
+            eq 'ssi_error') {
             $ssi_error = 0; # So end of handler error message does not trigger.
             $r->print("</form>");
             &ssi_print_error($r);
@@ -8253,9 +8818,22 @@ SCANTRONFORM
             return '';      # Why return ''?  Beats me.
         }
 
+        if (($scancode) && ($randomorder || $randompick)) {
+            my $parmresult =
+                &Apache::lonparmset::storeparm_by_symb($symb,
+                                                       '0_examcode',2,$scancode,
+                                                       'string_examcode',$uname,
+                                                       $udom);
+        }
 	$completedstudents{$uname}={'line'=>$line};
         if ($env{'form.verifyrecord'}) {
             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+            if ($randompick) {
+                if ($total) {
+                    $lastpos = $total*$scantron_config{'Qlength'};
+                }
+            }
+
             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
             chomp($studentdata);
             $studentdata =~ s/\r$//;
@@ -8266,14 +8844,17 @@ SCANTRONFORM
                 ($counter,my $recording) =
                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                              $counter,$studentdata,$partids_by_symb{$ressymb},
-                                             \%scantron_config,\%lettdig,$numletts);
+                                             \%scantron_config,\%lettdig,$numletts,$randomorder,
+                                             $randompick,\%respnumlookup,\%startline);
                 $studentrecord .= $recording;
             }
             if ($studentrecord ne $studentdata) {
                 &Apache::lonxml::clear_problem_counter();
                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
                                            \@mapresources,\%partids_by_symb,
-                                           $bubbles_per_row) eq 'ssi_error') {
+                                           $bubbles_per_row,$randomorder,$randompick,
+                                           \%respnumlookup,\%startline)
+                    eq 'ssi_error') {
                     $ssi_error = 0; # So end of handler error message does not trigger.
                     $r->print("</form>");
                     &ssi_print_error($r);
@@ -8289,7 +8870,9 @@ SCANTRONFORM
                     ($counter,my $recording) =
                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
-                                                 \%scantron_config,\%lettdig,$numletts);
+                                                 \%scantron_config,\%lettdig,$numletts,
+                                                 $randomorder,$randompick,\%respnumlookup,
+                                                 \%startline);
                     $studentrecord .= $recording;
                 }
                 if ($studentrecord ne $studentdata) {
@@ -8307,11 +8890,11 @@ SCANTRONFORM
                               &Apache::loncommon::end_data_table_header_row()."\n".
                               &Apache::loncommon::start_data_table_row().
                               '<td>'.&mt('Bubblesheet').'</td>'.
-                              '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::start_data_table_row().
                               '<td>'.&mt('Stored submissions').'</td>'.
-                              '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::end_data_table().'</p>');
                 } else {
@@ -8368,47 +8951,59 @@ sub graders_resources_pass {
   if this is a CODEd exam, or based on student's identity if this is a
   "NAMEd" exam.
 
-  Should be used when randomorder applied when the corresponding exam was
-  printed, prior to students completing bubblesheets for the version of the
-  exam the student received.
+  Should be used when randomorder and/or randompick applied when the 
+  corresponding exam was printed, prior to students completing bubblesheets 
+  for the version of the exam the student received.
 
 =cut
 
 sub users_order  {
-    my ($user,$scancode,$mapurl,$master_seq,$ordered,$symb_to_resource) = @_;
+    my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
     my @mapresources;
-    unless ((ref($ordered) eq 'HASH') && (ref($symb_to_resource) eq 'HASH')) {
+    unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
         return @mapresources;
     }
-    if (($scancode) && (ref($ordered->{$scancode}) eq 'ARRAY')) {
-        @mapresources = @{$ordered->{$scancode}};
-    } elsif ($scancode) {
-        $env{'form.CODE'} = $scancode;
-        my $actual_seq =
-            &Apache::lonprintout::master_seq_to_person_seq($mapurl,
-                                                           $master_seq,
-                                                           $user,$scancode);
-        if (ref($actual_seq) eq 'ARRAY') {
-            @{$ordered->{$scancode}} =
-                map { $symb_to_resource->{$_}; } @{$actual_seq};
-            @mapresources = @{$ordered->{$scancode}};
+    if ($scancode) {
+        if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
+            @mapresources = @{$orderedforcode->{$scancode}};
+        } else {
+            $env{'form.CODE'} = $scancode;
+            my $actual_seq =
+                &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                               $master_seq,
+                                                               $user,$scancode,1);
+            if (ref($actual_seq) eq 'ARRAY') {
+                @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
+                if (ref($orderedforcode) eq 'HASH') {
+                    if (@mapresources > 0) {
+                        $orderedforcode->{$scancode} = \@mapresources;
+                    }
+                }
+            }
+            delete($env{'form.CODE'});
         }
-        delete($env{'form.CODE'});
     } else {
         my $actual_seq =
             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
                                                            $master_seq,
-                                                           $user);
+                                                           $user,undef,1);
         if (ref($actual_seq) eq 'ARRAY') {
             @mapresources =
                 map { $symb_to_resource->{$_}; } @{$actual_seq};
         }
-     }
-     return @mapresources;
+    }
+    return @mapresources;
 }
 
 sub grade_student_bubbles {
-    my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row) = @_;
+    my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
+        $randomorder,$randompick,$respnumlookup,$startline) = @_;
+    my $uselookup = 0;
+    if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
+        (ref($startline) eq 'HASH')) {
+        $uselookup = 1;
+    }
+
     if (ref($resources) eq 'ARRAY') {
         my $count = 0;
         foreach my $resource (@{$resources}) {
@@ -8430,8 +9025,12 @@ sub grade_student_bubbles {
             if (ref($parts) eq 'HASH') {
                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
                     foreach my $part (@{$parts->{$ressymb}}) {
-                        $form{'scantron_questnum_start.'.$part} =
-                            1+$env{'form.scantron.first_bubble_line.'.$count};
+                        if ($uselookup) {
+                            $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
+                        } else {
+                            $form{'scantron_questnum_start.'.$part} =
+                                1+$env{'form.scantron.first_bubble_line.'.$count};
+                        }
                         $count++;
                     }
                 }
@@ -8457,7 +9056,9 @@ sub scantron_upload_scantron_data {
     my ($symb) = &get_symb($r,1);
     my $default_form_data=&defaultFormData($symb);
     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
+    &js_escape(\$nofile_alert);
     my $nocourseid_alert = &mt("Please use the 'Select Course' link to open a separate window where you can search for a course to which a file can be uploaded.");
+    &js_escape(\$nocourseid_alert);
     $r->print('
 <script type="text/javascript" language="javascript">
     function checkUpload(formname) {
@@ -8536,23 +9137,30 @@ sub scantron_upload_scantron_data_save {
     }
     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
     my $uploadedfile;
-    $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
+    $r->print('<p>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</p>');
     if (length($env{'form.upfile'}) < 2) {
-        $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','<span class="LC_error">','</span>','<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
+        $r->print(
+            &Apache::lonhtmlcommon::confirm_success(
+                &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                        '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1));
     } else {
         my $result = 
             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
                                             $env{'form.courseid'},$env{'form.domainid'});
 	if ($result =~ m{^/uploaded/}) {
-	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
-                          '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
-			  '<span class="LC_filename">'.$result.'</span>'));
+            $r->print(
+                &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
+                &mt('Uploaded [_1] bytes of data into location: [_2]',
+                        (length($env{'form.upfile'})-1),
+                        '<span class="LC_filename">'.$result.'</span>'));
             ($uploadedfile) = ($result =~ m{/([^/]+)$});
             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
                                                        $env{'form.courseid'},$uploadedfile));
 	} else {
-	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
-                          '<span class="LC_error">','</span>',$result,
+            $r->print(
+                &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
+                    &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
+                          $result,
 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 	}
     }
@@ -8574,7 +9182,7 @@ sub validate_uploaded_scantron_file {
     my $output;
     if (@lines) {
         my (%counts,$max_match_format);
-        my ($max_match_count,$max_match_pct) = (0,0);
+        my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
         my %idmap = &username_to_idmap($classlist);
         foreach my $key (keys(%idmap)) {
@@ -8617,6 +9225,7 @@ sub validate_uploaded_scantron_file {
                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
                     $max_match_pct = $percent_match;
                     $max_match_format = $key;
+                    $found_match_count = $counts{$key}{'found'};
                     $max_match_count = $counts{$key}{'total'};
                 }
             }
@@ -8635,17 +9244,40 @@ sub validate_uploaded_scantron_file {
                 }
             }
             my $showpct = sprintf("%.0f",$max_match_pct).'%';
-            $output .= '<br />'.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).','<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
-                       '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
-                       '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
-                       '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
-                                  '<i>'.$cdom.'</i>').'</li>'.
-                       '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
-                       '<li>'.&mt('The course roster is not up to date').'</li>'.
-                       '</ul>';
+            $output .= '<br />';
+            if ($found_match_count == $max_match_count) {
+                # 100% matching entries
+                $output .= &Apache::lonhtmlcommon::confirm_success(
+                     &mt('Comparison of student IDs: [_1] matching ([quant,_2,entry,entries])',
+                            '<b>'.$showpct.'</b>',$found_match_count)).'<br />'.
+                &mt('Comparison of student IDs in the uploaded file with'.
+                    ' the course roster found matches for [_1] of the [_2] entries'.
+                    ' in the file (for the format defined for [_3]).',
+                        '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs);
+            } else {
+                # Not all entries matching? -> Show warning and additional info
+                $output .=
+                    &Apache::lonhtmlcommon::confirm_success(
+                        &mt('Comparison of student IDs: [_1] matching ([_2]/[quant,_3,entry,entries])',
+                                '<b>'.$showpct.'</b>',$found_match_count,$max_match_count).'<br />'.
+                        &mt('Not all entries could be matched!'),1).'<br />'.
+                    &mt('Comparison of student IDs in the uploaded file with'.
+                        ' the course roster found matches for [_1] of the [_2] entries'.
+                        ' in the file (for the format defined for [_3]).',
+                            '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
+                    '<p class="LC_info">'.
+                    &mt('A low percentage of matches results from one of the following:').
+                    '</p><ul>'.
+                    '<li>'.&mt('The file was uploaded to the wrong course.').'</li>'.
+                    '<li>'.&mt('The data is not in the format expected for the domain: [_1]',
+                               '<i>'.$cdom.'</i>').'</li>'.
+                    '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
+                    '<li>'.&mt('The course roster is not up to date.').'</li>'.
+                    '</ul>';
+            }
         }
     } else {
-        $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
+        $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
     }
     return $output;
 }
@@ -8682,7 +9314,7 @@ sub scantron_download_scantron_data {
     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
     $r->print('
     <p>
-	'.&mt('[_1]Original[_2] file as uploaded by the scantron office.',
+	'.&mt('[_1]Original[_2] file as uploaded by bubblesheet scanning office.',
 	      '<a href="'.$orig.'">','</a>').'
     </p>
     <p>
@@ -8722,19 +9354,18 @@ sub checkscantron_results {
         return '';
     }
     my $map=$navmap->getResourceByUrl($sequence);
-    my ($randomorder,@master_seq,%symb_to_resource);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode);
     if (ref($map)) {
         $randomorder=$map->randomorder();
+        $randompick=$map->randompick();
     }
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    foreach my $resource (@resources) {
-        if (ref($resource)) {
-            my $ressymb = $resource->symb();
-            push(@master_seq,$ressymb);
-            $symb_to_resource{$ressymb} = $resource;
-        }
+    my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+    if ($nav_error) {
+        $r->print(&navmap_errormsg());
+        return '';
     }
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb);
     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
                             \%grader_randomlists_by_symb,$bubbles_per_row);
     my ($uname,$udom);
@@ -8745,10 +9376,9 @@ sub checkscantron_results {
     my @delayqueue;
     my %completedstudents;
 
-    my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
+    my $count=&get_todo_count($scanlines,$scan_data);
     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
-    my ($username,$domain,$started,%ordered);
-    my $nav_error;
+    my ($username,$domain,$started);
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -8773,8 +9403,8 @@ sub checkscantron_results {
         my $scan_record=
             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
                                                      $scan_data);
-        unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data,
-                                                              \%idmap,$i)) {
+        unless ($uname=&scantron_find_student($scan_record,$scan_data,
+                                              \%idmap,$i)) {
             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
                                 'Unable to find a student that matches',1);
             next;
@@ -8787,10 +9417,6 @@ sub checkscantron_results {
         my $pid = $scan_record->{'scantron.ID'};
         $lastname{$pid} = $scan_record->{'scantron.LastName'};
         push(@{$bylast{$lastname{$pid}}},$pid);
-        my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
-        $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
-        chomp($scandata{$pid});
-        $scandata{$pid} =~ s/\r$//;
         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
         my $user = $uname.':'.$usec;
         ($username,$domain)=split(/:/,$uname);
@@ -8804,11 +9430,25 @@ sub checkscantron_results {
         }
 
         my @mapresources = @resources;
-        if ($randomorder) {
+        my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+        my %respnumlookup=();
+        my %startline=();
+        if ($randomorder || $randompick) {
             @mapresources =
-                &users_order($user,$scancode,$sequence,\@master_seq,\%ordered,
-                             \%symb_to_resource);
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
+            my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
+                                             $scan_record,\@master_seq,\%symb_to_resource,
+                                             \%grader_partids_by_symb,\%orderedforcode,
+                                             \%respnumlookup,\%startline);
+            if ($randompick && $total) {
+                $lastpos = $total*$scantron_config{'Qlength'};
+            }
         }
+        $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
+        chomp($scandata{$pid});
+        $scandata{$pid} =~ s/\r$//;
+
         my $counter = -1;
         foreach my $resource (@mapresources) {
             my $parts;
@@ -8825,7 +9465,9 @@ sub checkscantron_results {
             ($counter,my $recording) =
                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
                                          $scandata{$pid},$parts,
-                                         \%scantron_config,\%lettdig,$numletts);
+                                         \%scantron_config,\%lettdig,$numletts,
+                                         $randomorder,$randompick,
+                                         \%respnumlookup,\%startline);
             $record{$pid} .= $recording;
         }
     }
@@ -8848,14 +9490,14 @@ sub checkscantron_results {
 '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 '</tr>'."\n".
 '<tr class="'.$css_class.'">'."\n".
-'<td>Submissions</td><td>'.$showrecord.'</td></tr>'."\n";
+'<td>'.&mt('Submissions').'</td><td>'.$showrecord.'</td></tr>'."\n";
                     $passed ++;
                 } else {
                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
                     $badstudents .= '<tr class="'.$css_class.'"><td>'.&mt('Bubblesheet').'</td><td><span class="LC_nobreak">'.$scandata{$pid}.'</span></td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 '</tr>'."\n".
 '<tr class="'.$css_class.'">'."\n".
-'<td>Submissions</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
+'<td>'.&mt('Submissions').'</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 '</tr>'."\n";
                     $failed ++;
                 }
@@ -8901,7 +9543,8 @@ sub checkscantron_results {
 
 sub verify_scantron_grading {
     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
-        $scantron_config,$lettdig,$numletts) = @_;
+        $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
+        $respnumlookup,$startline) = @_;
     my ($record,%expected,%startpos);
     return ($counter,$record) if (!ref($resource));
     return ($counter,$record) if (!$resource->is_problem());
@@ -8910,15 +9553,21 @@ sub verify_scantron_grading {
     foreach my $part_id (@{$partids}) {
         $counter ++;
         $expected{$part_id} = 0;
-        if ($env{"form.scantron.sub_bubblelines.$counter"}) {
-            my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"});
+        my $respnum = $counter;
+        if ($randomorder || $randompick) {
+            $respnum = $respnumlookup->{$counter};
+            $startpos{$part_id} = $startline->{$counter} + 1;
+        } else {
+            $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
+        }
+        if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
+            my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
             foreach my $item (@sub_lines) {
                 $expected{$part_id} += $item;
             }
         } else {
-            $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"};
+            $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
         }
-        $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
     }
     if ($symb) {
         my %recorded;
@@ -9014,7 +9663,7 @@ sub verify_scantron_grading {
     return ($counter,$record);
 }
 
-sub letter_to_digits { 
+sub letter_to_digits {
     my %lettdig = (
                     A => 1,
                     B => 2,
@@ -9353,6 +10002,15 @@ GRADINGMENUJS
     return $result;
 }
 
+sub substatus_options {
+    return &Apache::lonlocal::texthash(
+                                      'yes'       => 'with submissions',
+                                      'queued'    => 'in grading queue',
+                                      'graded'    => 'with ungraded submissions',
+                                      'incorrect' => 'with incorrect submissions',
+                                      'all'       => 'with any status');
+}
+
 sub reset_perm {
     undef(%perm);
 }
@@ -9621,16 +10279,18 @@ sub process_clicker_file {
 	    $number++;
 	}
         $result.="</p>\n";
-	if ($number==0) {
-	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
-	    return $result.&show_grading_menu_form($symb);
-	}
+        if ($number==0) {
+            $result .=
+                 &Apache::lonhtmlcommon::confirm_success(
+                     &mt('No IDs found to determine correct answer'),1);
+            return $result,.&show_grading_menu_form($symb);
+        }
     }
     if (length($env{'form.upfile'}) < 2) {
-        $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
-		     '<span class="LC_error">',
-		     '</span>',
-		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
+        $result .=
+            &Apache::lonhtmlcommon::confirm_success(
+                &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                        '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1);
         return $result.&show_grading_menu_form($symb);
     }
 
@@ -9722,7 +10382,7 @@ ENDHEADER
              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
        if ($correct_count==0) {
-          $errormsg.="Found no correct answers answers for grading!";
+          $errormsg.="Found no correct answers for grading!";
        } elsif ($correct_count>1) {
           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
        }
@@ -9897,7 +10557,7 @@ sub assign_clicker_grades {
        if ($user) {
           if ($users{$user}) {
              $result.='<br /><span class="LC_warning">'.
-                      &mt("More than one entry found for <tt>[_1]</tt>!",$user).
+                      &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
                       '</span><br />';
           }
           $users{$user}=1;
@@ -10188,11 +10848,11 @@ At least the logic that drives this has
 ssi_with_retries - Does the server side include of a resource.
                      if the ssi call returns an error we'll retry it up to
                      the number of times requested by the caller.
-                     If we still have a proble, no text is appended to the
+                     If we still have a problem, no text is appended to the
                      output and we set some global variables.
                      to indicate to the caller an SSI error occurred.  
                      All of this is supposed to deal with the issues described
-                     in LonCAPA BZ 5631 see:
+                     in LON-CAPA BZ 5631 see:
                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
                      by informing the user that this happened.
 
@@ -10250,6 +10910,16 @@ ssi_with_retries()
          - missingbubble - array ref of the bubble lines that have missing
                            bubble errors
 
+   $randomorder - True if exam folder has randomorder set
+   $randompick  - True if exam folder has randompick set
+   $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                     for current line to question number used for same question
+                     in "Master Seqence" (as seen by Course Coordinator).
+   $startline   - Reference to hash where key is question number (0 is first)
+                  and value is number of first bubble line for current student
+                  or code-based randompick and/or randomorder.
+
+
 =item  scantron_get_maxbubble() : 
 
    Arguments:
@@ -10270,7 +10940,7 @@ ssi_with_retries()
    $env{'form.scantron.bubble_lines.n'}, 
    $env{'form.scantron.first_bubble_line.n'} and
    $env{"form.scantron.sub_bubblelines.n"}
-   which are the total number of bubble, lines, the number of bubble
+   which are the total number of bubble lines, the number of bubble
    lines for response n and number of the first bubble line for response n,
    and a comma separated list of numbers of bubble lines for sub-questions
    (for optionresponse, matchresponse, and rankresponse items), for response n.