--- loncom/homework/grades.pm	2010/12/04 15:02:26	1.639
+++ loncom/homework/grades.pm	2013/09/27 12:57:49	1.707
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.639 2010/12/04 15:02:26 www Exp $
+# $Id: grades.pm,v 1.707 2013/09/27 12:57:49 bisitz Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -40,11 +40,12 @@ use Apache::lonhomework;
 use Apache::lonpickcode;
 use Apache::loncoursedata;
 use Apache::lonmsg();
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common :http);
 use Apache::lonlocal;
 use Apache::lonenc;
 use Apache::lonstathelpers;
 use Apache::lonquickgrades;
+use Apache::bridgetask();
 use String::Similarity;
 use LONCAPA;
 
@@ -53,6 +54,7 @@ use POSIX qw(floor);
 
 
 my %perm=();
+my %old_essays=();
 
 #  These variables are used to recover from ssi errors
 
@@ -201,6 +203,7 @@ sub get_display_part {
 sub reset_caches {
     &reset_analyze_cache();
     &reset_perm();
+    &reset_old_essays();
 }
 
 {
@@ -213,8 +216,13 @@ sub reset_caches {
     }
 
     sub get_analyze {
-	my ($symb,$uname,$udom,$no_increment,$add_to_hash)=@_;
+	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
 	my $key = "$symb\0$uname\0$udom";
+        if ($type eq 'randomizetry') {
+            if ($trial ne '') {
+                $key .= "\0".$trial;
+            }
+        }
 	if (exists($analyze_cache{$key})) {
             my $getupdate = 0;
             if (ref($add_to_hash) eq 'HASH') {
@@ -242,9 +250,18 @@ sub reset_caches {
                     'grade_courseid'    =>  $env{'request.course.id'},
                     'grade_username'    => $uname,
                     'grade_noincrement' => $no_increment);
+        if ($bubbles_per_row ne '') {
+            $form{'bubbles_per_row'} = $bubbles_per_row;
+        }
+        if ($type eq 'randomizetry') {
+            $form{'grade_questiontype'} = $type;
+            if ($rndseed ne '') {
+                $form{'grade_rndseed'} = $rndseed;
+            }
+        }
         if (ref($add_to_hash)) {
             %form = (%form,%{$add_to_hash});
-        } 
+        }
 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
 	my %analyze=&Apache::lonnet::str2hash($subresult);
@@ -257,15 +274,15 @@ sub reset_caches {
     }
 
     sub get_order {
-	my ($partid,$respid,$symb,$uname,$udom,$no_increment)=@_;
-	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment);
+	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
+	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
 	return $analyze->{"$partid.$respid.shown"};
     }
 
     sub get_radiobutton_correct_foil {
-	my ($partid,$respid,$symb,$uname,$udom)=@_;
-	my $analyze = &get_analyze($symb,$uname,$udom);
-        my $foils = &get_order($partid,$respid,$symb,$uname,$udom);
+	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
+	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
+        my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
         if (ref($foils) eq 'ARRAY') {
 	    foreach my $foil (@{$foils}) {
 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
@@ -276,7 +293,7 @@ sub reset_caches {
     }
 
     sub scantron_partids_tograde {
-        my ($resource,$cid,$uname,$udom,$check_for_randomlist) = @_;
+        my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row) = @_;
         my (%analysis,@parts);
         if (ref($resource)) {
             my $symb = $resource->symb();
@@ -284,7 +301,9 @@ sub reset_caches {
             if ($check_for_randomlist) {
                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
             }
-            my $analyze = &get_analyze($symb,$uname,$udom,undef,$add_to_form);
+            my $analyze = 
+                &get_analyze($symb,$uname,$udom,undef,$add_to_form,
+                             undef,undef,undef,$bubbles_per_row);
             if (ref($analyze) eq 'HASH') {
                 %analysis = %{$analyze};
             }
@@ -307,7 +326,7 @@ sub reset_caches {
 #        response types only.
 sub cleanRecord {
     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
-	$uname,$udom) = @_;
+	$uname,$udom,$type,$trial,$rndseed) = @_;
     my $grayFont = '<span class="LC_internal_info">';
     if ($response =~ /^(option|rank)$/) {
 	my %answer=&Apache::lonnet::str2hash($answer);
@@ -324,7 +343,7 @@ sub cleanRecord {
 	return '<blockquote><table border="1">'.
 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
-	    $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
+	    $bottomrow.'</tr></table></blockquote>';
     } elsif ($response eq 'match') {
 	my %answer=&Apache::lonnet::str2hash($answer);
 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
@@ -346,12 +365,12 @@ sub cleanRecord {
 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
 	    $middlerow.'</tr>'.
 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
-	    $bottomrow.'</tr>'.'</table></blockquote>';
+	    $bottomrow.'</tr></table></blockquote>';
     } elsif ($response eq 'radiobutton') {
 	my %answer=&Apache::lonnet::str2hash($answer);
 	my ($toprow,$bottomrow);
 	my $correct = 
-	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom);
+	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
 	foreach my $foil (@$order) {
 	    if (exists($answer{$foil})) {
 		if ($foil eq $correct) {
@@ -367,7 +386,7 @@ sub cleanRecord {
 	return '<blockquote><table border="1">'.
 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
-	    $bottomrow.'</tr>'.'</table></blockquote>';
+	    $bottomrow.'</tr></table></blockquote>';
     } elsif ($response eq 'essay') {
 	if (! exists ($env{'form.'.$symb})) {
 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
@@ -664,7 +683,11 @@ sub compute_points {
 #
 
 sub most_similar {
-    my ($uname,$udom,$uessay,$old_essays)=@_;
+    my ($uname,$udom,$symb,$uessay)=@_;
+
+    unless ($symb) { return ''; }
+
+    unless (ref($old_essays{$symb}) eq 'HASH') { return ''; }
 
 # ignore spaces and punctuation
 
@@ -681,11 +704,11 @@ sub most_similar {
     my $scrsid='';
     my $sessay='';
 # go through all essays ...
-    foreach my $tkey (keys(%$old_essays)) {
+    foreach my $tkey (keys(%{$old_essays{$symb}})) {
 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
 # ... except the same student
         next if (($tname eq $uname) && ($tdom eq $udom));
-	my $tessay=$old_essays->{$tkey};
+	my $tessay=$old_essays{$symb}{$tkey};
 	$tessay=~s/\W+/ /gs;
 # String similarity gives up if not even limit
 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
@@ -695,7 +718,7 @@ sub most_similar {
 	    $sname=$tname;
 	    $sdom=$tdom;
 	    $scrsid=$tcrsid;
-	    $sessay=$old_essays->{$tkey};
+	    $sessay=$old_essays{$symb}{$tkey};
 	}
     }
     if ($limit>0.6) {
@@ -713,7 +736,7 @@ sub most_similar {
 sub initialverifyreceipt {
    my ($request,$symb) = @_;
    &commonJSfunctions($request);
-   return '<form name="gradingMenu"><input type="submit" value="'.&mt('Verify Receipt Number.').'" />'.
+   return '<form name="gradingMenu" action=""><input type="submit" value="'.&mt('Verify Receipt Number.').'" />'.
         &Apache::lonnet::recprefix($env{'request.course.id'}).
         '-<input type="text" name="receipt" size="4" />'.
         '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
@@ -885,17 +908,17 @@ LISTJAVASCRIPT
     $submission_options.=
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
-        &mt('last submission only').' </label></span>'."\n".
+        &mt('last submission').' </label></span>'."\n".
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="last" /> '.
-        &mt('last submission &amp; parts info').' </label></span>'."\n".
+        &mt('last submission with details').' </label></span>'."\n".
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.
-        &mt('by dates and submissions').'</label></span>'."\n".
+        &mt('all submissions').'</label></span>'."\n".
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="all" /> '.
-        &mt('all details').'</label></span>';
-    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
+        &mt('all submissions with details').'</label></span>';
+    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Submissions'))
                   .$submission_options
                   .&Apache::lonhtmlcommon::row_closure();
 
@@ -1392,12 +1415,28 @@ INNERJS
 
     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
     $docopen=~s/^document\.//;
-    my $alertmsg = &mt('Please select a word or group of words from document and then click this link.');
+    my %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.',
+                comp => 'Compose Message for: ',
+                incl => 'Include',
+                type => 'Type',
+                subj => 'Subject',
+                mesa => 'Message',
+                new  => 'New',
+                save => 'Save',
+                canc => 'Cancel',
+                kehi => 'Keyword Highlight Options',
+                txtc => 'Text Color',
+                font => 'Font Size',
+                fnst => 'Font Style',
+             );
     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
 
 //===================== Show list of keywords ====================
   function keywords(formname) {
-    var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",formname.keywords.value);
+    var nret = prompt("$lt{'keyw'}",formname.keywords.value);
     if (nret==null) return;
     formname.keywords.value = nret;
 
@@ -1424,10 +1463,10 @@ INNERJS
     else return;
     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
     if (cleantxt=="") {
-	alert("$alertmsg");
+	alert("$lt{'plse'}");
 	return;
     }
-    var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
+    var nret = prompt("$lt{'adds'}",cleantxt);
     if (nret==null) return;
     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
     if (document.SCORE.keywords.value != "") {
@@ -1491,17 +1530,15 @@ INNERJS
 
   function savedMsgHeader(Nmsg,usrctr,fullname) {
     var height = 70*Nmsg+250;
-    var scrollbar = "no";
     if (height > 600) {
 	height = 600;
-	scrollbar = "yes";
     }
     var xpos = (screen.width-600)/2;
     xpos = (xpos < 0) ? '0' : xpos;
     var ypos = (screen.height-height)/2-30;
     ypos = (ypos < 0) ? '0' : ypos;
 
-    pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=600,height='+height);
+    pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars=yes,screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
     pWin.focus();
     pDoc = pWin.document;
     pDoc.$docopen;
@@ -1509,42 +1546,41 @@ 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;Compose Message for \"+fullname+\"<\\/span><\\/h3><br /><br />");
+    pDoc.write("<h1>&nbsp;$lt{'comp'}\"+fullname+\"<\\/h1>");
 
-    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>Type<\\/b><\\/td><td><b>Include<\\/b><\\/td><td><b>Message<\\/td><\\/tr>");
+    pDoc.write('<table style="border:1px solid black;"><tr>');
+    pDoc.write("<td><b>$lt{'incl'}<\\/b><\\/td><td><b>$lt{'type'}<\\/b><\\/td><td><b>$lt{'mesa'}<\\/td><\\/tr>");
 }
     function displaySubject(msg,shwsel) {
     pDoc = pWin.document;
-    pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-    pDoc.write("<td>Subject<\\/td>");
+    pDoc.write("<tr>");
     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
-    pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
+    pDoc.write("<td>$lt{'subj'}<\\/td>");
+    pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"40\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 }
 
   function displaySavedMsg(ctr,msg,shwsel) {
     pDoc = pWin.document;
-    pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-    pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
+    pDoc.write("<tr>");
     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
+    pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 }
 
   function newMsg(newmsg,shwsel) {
     pDoc = pWin.document;
-    pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
-    pDoc.write("<td align=\\"center\\">New<\\/td>");
+    pDoc.write("<tr>");
     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
+    pDoc.write("<td align=\\"center\\">$lt{'new'}<\\/td>");
     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 }
 
   function msgTail() {
     pDoc = pWin.document;
-    pDoc.write("<\\/table>");
+    //pDoc.write("<\\/table>");
     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
-    pDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
-    pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
+    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("<\\/form>");
     pDoc.write('$end_page_msg_central');
     pDoc.close();
@@ -1594,11 +1630,11 @@ INNERJS
     hDoc.$docopen;
     hDoc.write('$start_page_highlight_central');
     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
-    hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;Keyword Highlight Options<\\/span><\\/h3><br /><br />");
+    hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'kehi'}<\\/span><\\/h3><br /><br />");
 
     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>Text Color<\\/b><\\/td><td><b>Font Size<\\/b><\\/td><td><b>Font Style<\\/td><\\/tr>");
+    hDoc.write("<td><b>$lt{'txtc'}<\\/b><\\/td><td><b>$lt{'font'}<\\/b><\\/td><td><b>$lt{'fnst'}<\\/td><\\/tr>");
   }
 
   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
@@ -1617,8 +1653,8 @@ INNERJS
     var hDoc = hwdWin.document;
     hDoc.write("<\\/table>");
     hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
-    hDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
-    hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
+    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("<\\/form>");
     hDoc.write('$end_page_highlight_central');
     hDoc.close();
@@ -1666,7 +1702,7 @@ 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]);
@@ -1674,7 +1710,7 @@ 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();
@@ -1711,8 +1747,9 @@ sub gradeBox {
 
 
     $result .= 
-	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
+	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
     $result.=&Apache::loncommon::end_data_table_row();
+    $result.=&Apache::loncommon::start_data_table_row().'<td colspan="6">';
     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
@@ -1723,6 +1760,7 @@ 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();
     }
@@ -1733,7 +1771,7 @@ sub handback_box {
     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error_pointer) = @_;
     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error_pointer);
     my (@respids);
-     my @part_response_id = &flatten_responseType($responseType);
+    my @part_response_id = &flatten_responseType($responseType);
     foreach my $part_response_id (@part_response_id) {
     	my ($part,$resp) = @{ $part_response_id };
         if ($part eq $partid) {
@@ -1745,9 +1783,10 @@ sub handback_box {
 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 	next if (!@$files);
-	my $file_counter = 1;
+	my $file_counter = 0;
 	foreach my $file (@$files) {
 	    if ($file =~ /\/portfolio\//) {
+                $file_counter++;
     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
     	        $file_disp = "$name.$ext";
@@ -1755,11 +1794,14 @@ sub handback_box {
     	        $result.=&mt('Return commented version of [_1] to student.',
     			 '<span class="LC_filename">'.$file_disp.'</span>');
     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
-    	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />';
-    	        $result.='('.&mt('File will be uploaded when you click on Save &amp; Next below.').')<br />';
-    	        $file_counter++;
+    	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
 	    }
 	}
+        if ($file_counter) {
+            $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
+                       '<span class="LC_info">'.
+                       '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
+        }
     }
     return $result;    
 }
@@ -1792,14 +1834,27 @@ sub show_problem {
 	$companswer=~s|</form>||g;
 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
     }
+    my $renderheading = &mt('View of the problem');
+    my $answerheading = &mt('Correct answer');
+    if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
+        my $stu_fullname = $env{'form.fullname'};
+        if ($stu_fullname eq '') {
+            $stu_fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
+        }
+        my $forwhom = &nameUserString(undef,$stu_fullname,$uname,$udom);
+        if ($forwhom ne '') {
+            $renderheading = &mt('View of the problem for[_1]',$forwhom);
+            $answerheading = &mt('Correct answer for[_1]',$forwhom);
+        }
+    }
     $rendered=
         '<div class="LC_Box">'
-       .'<h3 class="LC_hcell">'.&mt('View of the problem').'</h3>'
+       .'<h3 class="LC_hcell">'.$renderheading.'</h3>'
        .$rendered
        .'</div>';
     $companswer=
         '<div class="LC_Box">'
-       .'<h3 class="LC_hcell">'.&mt('Correct answer').'</h3>'
+       .'<h3 class="LC_hcell">'.$answerheading.'</h3>'
        .$companswer
        .'</div>';
     my $result;
@@ -1901,7 +1956,6 @@ sub submission {
 	'" src="'.$request->dir_config('lonIconsURL').
 	'/check.gif" height="16" border="0" />';
 
-    my %old_essays;
     # header info
     if ($counter == 0) {
 	&sub_page_js($request);
@@ -1922,7 +1976,7 @@ 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') {
@@ -1985,15 +2039,22 @@ sub submission {
 
 #	if ($env{'form.handgrade'} eq 'yes') {
         if (1) {
+
+            my %lt = &Apache::lonlocal::texthash(
+                          keyw => 'Keyword Options',
+                          list => 'List',
+                          past => 'Paste Selection to List',
+                          high => 'Highlight Attribute',
+                     );    
 #
 # Print out the keyword options line
 #
 	    $request->print(<<KEYWORDS);
-&nbsp;<b>Keyword Options:</b>&nbsp;
-<a href="javascript:keywords(document.SCORE);" target="_self">List</a>&nbsp; &nbsp;
+<br /><b>$lt{'keyw'}:</b>&nbsp;
+<a href="javascript:keywords(document.SCORE);" target="_self">$lt{'list'}</a>&nbsp; &nbsp;
 <a href="#" onmousedown="javascript:getSel(); return false"
- CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
-<a href="javascript:kwhighlight();" target="_self">Highlight Attribute</a><br /><br />
+ class="page">$lt{'past'}</a>&nbsp; &nbsp;
+<a href="javascript:kwhighlight();" target="_self">$lt{'high'}</a><br /><br />
 KEYWORDS
 #
 # Load the other essays for similarity check
@@ -2002,7 +2063,7 @@ KEYWORDS
 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 	    $apath=&escape($apath);
 	    $apath=~s/\W/\_/gs;
-	    %old_essays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
+            &init_old_essays($symb,$apath,$adom,$aname);
         }
     }
 
@@ -2078,130 +2139,146 @@ KEYWORDS
 	$result.=$sub_result;
     }
     $request->print($result."\n");
-
+    
     # print student answer/submission
     # Options are (1) Handgraded submission only
     #             (2) Last submission, includes submission that is not handgraded 
     #                  (for multi-response type part)
     #             (3) Last submission plus the parts info
     #             (4) The whole record for this student
-    if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
-	my ($string,$timestamp)= &get_last_submission(\%record);
+    
+    my ($string,$timestamp)= &get_last_submission(\%record);
 	
-	my $lastsubonly;
+    my $lastsubonly;
 
-        if ($$timestamp eq '') {
-            $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
-        } else {
-            $lastsubonly =
-                '<div class="LC_grade_submissions_body">'
-               .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
-
-	    my %seenparts;
-	    my @part_response_id = &flatten_responseType($responseType);
-	    foreach my $part (@part_response_id) {
-		next if ($env{'form.lastSub'} eq 'hdgrade' 
+    if ($$timestamp eq '') {
+        $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
+    } else {
+        $lastsubonly =
+            '<div class="LC_grade_submissions_body">'
+           .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
+
+	my %seenparts;
+	my @part_response_id = &flatten_responseType($responseType);
+	foreach my $part (@part_response_id) {
+	    next if ($env{'form.lastSub'} eq 'hdgrade' 
 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 
-		my ($partid,$respid) = @{ $part };
-		my $display_part=&get_display_part($partid,$symb);
-		if ($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);
-		    next;
-		}
-		my $responsetype = $responseType->{$partid}->{$respid};
-		if (!exists($record{"resource.$partid.$respid.submission"})) {
-                    $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
-                        '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
-                        ' <span class="LC_internal_info">'.
-                        '('.&mt('Response ID: [_1]',$respid).')'.
-                        '</span>&nbsp; &nbsp;'.
-			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
-		    next;
-		}
-		foreach my $submission (@$string) {
-		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
-		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
-		    my ($ressub,$hide,$subval) = split(/:/,$submission,3);
-		    # Similarity check
-		    my $similar='';
-		    if($env{'form.checkPlag'}){
-			my ($oname,$odom,$ocrsid,$oessay,$osim)=
-			    &most_similar($uname,$udom,$subval,\%old_essays);
-			if ($osim) {
-			    $osim=int($osim*100.0);
-			    my %old_course_desc = 
-				&Apache::lonnet::coursedescription($ocrsid,
-								   {'one_time' => 1});
-
-                            if ($hide) {
-                                $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
-                                         &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
-                            } else {
-			        $similar="<hr /><h3><span class=\"LC_warning\">".
-				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
-				        $osim,
-				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
+	    my ($partid,$respid) = @{ $part };
+	    my $display_part=&get_display_part($partid,$symb);
+	    if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
+		if (exists($seenparts{$partid})) { next; }
+		$seenparts{$partid}=1;
+                $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}->{$respid};
+	    if (!exists($record{"resource.$partid.$respid.submission"})) {
+                $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
+                    '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                    ' <span class="LC_internal_info">'.
+                    '('.&mt('Response ID: [_1]',$respid).')'.
+                    '</span>&nbsp; &nbsp;'.
+	       	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
+		next;
+	    }
+	    foreach my $submission (@$string) {
+		my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
+		if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
+		my ($ressub,$hide,$subval) = split(/:/,$submission,3);
+		# Similarity check
+                my $similar='';
+                my ($type,$trial,$rndseed);
+                if ($hide eq 'rand') {
+                    $type = 'randomizetry';
+                    $trial = $record{"resource.$partid.tries"};
+                    $rndseed = $record{"resource.$partid.rndseed"};
+                }
+	        if ($env{'form.checkPlag'}) {
+    		    my ($oname,$odom,$ocrsid,$oessay,$osim)=
+		        &most_similar($uname,$udom,$symb,$subval);
+		    if ($osim) {
+			$osim=int($osim*100.0);
+			my %old_course_desc = 
+			    &Apache::lonnet::coursedescription($ocrsid,
+							{'one_time' => 1});
+
+                        if ($hide eq 'anon') {
+                            $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
+                                     &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
+                        } else {
+			    $similar="<hr /><h3><span class=\"LC_warning\">".
+				&mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
+				    $osim,
+				    &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 				        $old_course_desc{'description'},
 				        $old_course_desc{'num'},
 				        $old_course_desc{'domain'}).
 				    '</span></h3><blockquote><i>'.
 				    &keywords_highlight($oessay).
 				    '</i></blockquote><hr />';
-                            }
-			}
-		    }
-		    my $order=&get_order($partid,$respid,$symb,$uname,$udom);
-		    if ($env{'form.lastSub'} eq 'lastonly' || 
-			($env{'form.lastSub'} eq 'hdgrade' && 
+                        }
+	            }
+		}
+		my $order=&get_order($partid,$respid,$symb,$uname,$udom,
+                                     undef,$type,$trial,$rndseed);
+                if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' && 
 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
-			my $display_part=&get_display_part($partid,$symb);
-                        $lastsubonly.='<div class="LC_grade_submission_part">'.
-                            '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
-                            ' <span class="LC_internal_info">'.
-                            '('.&mt('Response ID: [_1]',$respid).')'.
-                            '</span>&nbsp; &nbsp;';
-			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
-			if (@$files) {
-                            if ($hide) {
-                                $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
+		    my $display_part=&get_display_part($partid,$symb);
+                    $lastsubonly.='<div class="LC_grade_submission_part">'.
+                        '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                        ' <span class="LC_internal_info">'.
+                        '('.&mt('Response ID: [_1]',$respid).')'.
+                        '</span>&nbsp; &nbsp;';
+		    my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
+                        
+		    if (@$files) {
+                        if ($hide eq 'anon') {
+                            $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
+                        } else {
+                            $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
+                                        .'<br /><span class="LC_warning">';
+                            if(@$files == 1) {
+                                $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
                             } else {
-                                $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
-                                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 .= &mt('Like all files provided by users, these files may contain viruses!');
+                            }
+                            $lastsubonly .= '</span>';                         
+                            foreach my $file (@$files) {
+                                &Apache::lonnet::allowuploaded('/adm/grades',$file);
+                                $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
                             }
-			    $lastsubonly.='<br />';
-			}
-                        if ($hide) {
-                            $lastsubonly.='<b>'.&mt('Anonymous Survey').'</b>'; 
-                        } else {
-			    $lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
-			        &cleanRecord($subval,$responsetype,$symb,$partid,
-					     $respid,\%record,$order,undef,$uname,$udom);
                         }
-			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
-			$lastsubonly.='</div>';
-		    }
+			$lastsubonly.='<br />';
+                    }
+                    if ($hide eq 'anon') {
+                        $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
+                    } else {
+             	        $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>'.
+			    &cleanRecord($subval,$responsetype,$symb,$partid,
+					 $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
+                    }
+	            if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
+		    $lastsubonly.='</div>';
 		}
-	    }
-	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
+            }
 	}
-	$request->print($lastsubonly);
-   } elsif ($env{'form.lastSub'} eq 'datesub') {
+	$lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
+    }
+    $request->print($lastsubonly);
+    if ($env{'form.lastSub'} eq 'datesub') {
         my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
-    } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
-	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+    } 
+    if ($env{'form.lastSub'} =~ /^(last|all)$/) {
+        $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 								 $env{'request.course.id'},
 								 $last,'.submission',
 								 'Apache::grades::keywords_highlight'));
@@ -2234,10 +2311,10 @@ 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').
-	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
+	    ' <img src="'.$request->dir_config('lonIconsURL').
+	    '/mailbkgrd.gif" width="14" height="10" alt="" name="mailicon'.$counter.'" />'."\n".
 	    '<br />&nbsp;('.
 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 	$result.='</div></div>';
@@ -2386,35 +2463,51 @@ sub get_last_submission {
 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 	    }
 	}
-        my %typeparts;
+        my (%typeparts,%randombytry);
         my $showsurv = 
             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
         foreach my $key (sort(keys(%lasthash))) {
             if ($key =~ /\.type$/) {
                 if (($lasthash{$key} eq 'anonsurvey') || 
-                    ($lasthash{$key} eq 'anonsurveycred')) {
+                    ($lasthash{$key} eq 'anonsurveycred') ||
+                    ($lasthash{$key} eq 'randomizetry')) {
                     my ($ign,@parts) = split(/\./,$key);
                     pop(@parts);
-                    unless ($showsurv) {
-                        my $id = join(',',@parts);
-                        $typeparts{$ign.'.'.$id} = $lasthash{$key};
+                    my $id = join('.',@parts);
+                    if ($lasthash{$key} eq 'randomizetry') {
+                        $randombytry{$ign.'.'.$id} = $lasthash{$key};
+                    } else {
+                        unless ($showsurv) {
+                            $typeparts{$ign.'.'.$id} = $lasthash{$key};
+                        }
                     }
                     delete($lasthash{$key});
                 }
             }
         }
         my @hidden = keys(%typeparts);
+        my @randomize = keys(%randombytry);
 	foreach my $key (keys(%lasthash)) {
 	    next if ($key !~ /\.submission$/);
             my $hide;
             if (@hidden) {
                 foreach my $id (@hidden) {
                     if ($key =~ /^\Q$id\E/) {
-                        $hide = 1;
+                        $hide = 'anon';
                         last;
                     }
                 }
             }
+            unless ($hide) {
+                if (@randomize) {
+                    foreach my $id (@hidden) {
+                        if ($key =~ /^\Q$id\E/) {
+                            $hide = 'rand';
+                            last;
+                        }
+                    }
+                }
+            }
 	    my ($partid,$foo) = split(/submission$/,$key);
 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
 		'<span class="LC_warning">Draft Copy</span> ' : '';
@@ -2441,6 +2534,183 @@ sub keywords_highlight {
     return $string;
 }
 
+# For Tasks provide a mechanism to display previous version for one specific student
+
+sub show_previous_task_version {
+    my ($request,$symb) = @_;
+    if ($symb eq '') {
+        $request->print("Unable to handle ambiguous references.");
+
+        return '';
+    }
+    my ($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>');
+        return;
+    }
+    my $mode = 'both';
+    my $isTask = ($symb =~/\.task$/);
+    if ($isTask) {
+        if ($env{'form.previousversion'} =~ /^\d+$/) {
+            if ($env{'form.fullname'} eq '') {
+                $env{'form.fullname'} =
+                    &Apache::loncommon::plainname($uname,$udom,'lastname');
+            }
+            my $probtitle=&Apache::lonnet::gettitle($symb);
+            $request->print("\n\n".
+                            '<div class="LC_grade_show_user">'.
+                            '<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
+                            '</h2>'."\n");
+            &Apache::lonxml::clear_problem_counter();
+            $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,
+                            {'previousversion' => $env{'form.previousversion'} }));
+            $request->print("\n</div>");
+        }
+    }
+    return;
+}
+
+sub choose_task_version_form {
+    my ($symb,$uname,$udom,$nomenu) = @_;
+    my $isTask = ($symb =~/\.task$/);
+    my ($current,$version,$result,$js,$displayed,$rowtitle);
+    if ($isTask) {
+        my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
+                                              $udom,$uname);
+        if (($record{'resource.0.version'} eq '') ||
+            ($record{'resource.0.version'} < 2)) {
+            return ($record{'resource.0.version'},
+                    $record{'resource.0.version'},$result,$js);
+        } else {
+            $current = $record{'resource.0.version'};
+        }
+        if ($env{'form.previousversion'}) {
+            $displayed = $env{'form.previousversion'};
+            $rowtitle = &mt('Choose another version:')
+        } else {
+            $displayed = $current;
+            $rowtitle = &mt('Show earlier version:');
+        }
+        $result = '<div class="LC_left_float">';
+        my $list;
+        my $numversions = 0;
+        for (my $i=1; $i<=$record{'resource.0.version'}; $i++) {
+            if ($i == $current) {
+                if (!$env{'form.previousversion'} || $nomenu) {
+                    next;
+                } else {
+                    $list .= '<option value="'.$i.'">'.&mt('Current').'</option>'."\n";
+                    $numversions ++;
+                }
+            } elsif (defined($record{'resource.'.$i.'.0.status'})) {
+                unless ($i == $env{'form.previousversion'}) {
+                    $numversions ++;
+                }
+                $list .= '<option value="'.$i.'">'.$i.'</option>'."\n";
+            }
+        }
+        if ($numversions) {
+            $symb = &HTML::Entities::encode($symb,'<>"&');
+            $result .=
+                '<form name="getprev" method="post" action=""'.
+                ' onsubmit="return previousVersion('."'$uname','$udom','$symb','$displayed'".');">'.
+                &Apache::loncommon::start_data_table().
+                &Apache::loncommon::start_data_table_row().
+                '<th align="left">'.$rowtitle.'</th>'.
+                '<td><select name="version">'.
+                '<option>'.&mt('Select').'</option>'.
+                $list.
+                '</select></td>'.
+                &Apache::loncommon::end_data_table_row();
+            unless ($nomenu) {
+                $result .= &Apache::loncommon::start_data_table_row().
+                '<th align="left">'.&mt('Open in new window').'</th>'.
+                '<td><span class="LC_nobreak">'.
+                '<label><input type="radio" name="prevwin" value="1" />'.
+                &mt('Yes').'</label>'.
+                '<label><input type="radio" name="prevwin" value="0" checked="checked" />'.&mt('No').'</label>'.
+                '</span></td>'.
+                &Apache::loncommon::end_data_table_row();
+            }
+            $result .=
+                &Apache::loncommon::start_data_table_row().
+                '<th align="left">&nbsp;</th>'.
+                '<td>'.
+                '<input type="submit" name="prevsub" value="'.&mt('Display').'" />'.
+                '</td>'.
+                &Apache::loncommon::end_data_table_row().
+                &Apache::loncommon::end_data_table().
+                '</form>';
+            $js = &previous_display_javascript($nomenu,$current);
+        } elsif ($displayed && $nomenu) {
+            $result .= '<a href="javascript:window.close()">'.&mt('Close window').'</a>';
+        } else {
+            $result .= &mt('No previous versions to show for this student');
+        }
+        $result .= '</div>';
+    }
+    return ($current,$displayed,$result,$js);
+}
+
+sub previous_display_javascript {
+    my ($nomenu,$current) = @_;
+    my $js = <<"JSONE";
+<script type="text/javascript">
+// <![CDATA[
+function previousVersion(uname,udom,symb) {
+    var current = '$current';
+    var version = document.getprev.version.options[document.getprev.version.selectedIndex].value;
+    var prevstr = new RegExp("^\\\\d+\$");
+    if (!prevstr.test(version)) {
+        return false;
+    }
+    var url = '';
+    if (version == current) {
+        url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=submission';
+    } else {
+        url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=versionsub&previousversion='+version;
+    }
+JSONE
+    if ($nomenu) {
+        $js .= <<"JSTWO";
+    document.location.href = url;
+JSTWO
+    } else {
+        $js .= <<"JSTHREE";
+    var newwin = 0;
+    for (var i=0; i<document.getprev.prevwin.length; i++) {
+        if (document.getprev.prevwin[i].checked == true) {
+            newwin = document.getprev.prevwin[i].value;
+        }
+    }
+    if (newwin == 1) {
+        var options = 'height=600,width=800,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no';
+        url = url+'&inhibitmenu=yes';
+        if (typeof(previousWin) == 'undefined' || previousWin.closed) {
+            previousWin = window.open(url,'',options,1);
+        } else {
+            previousWin.location.href = url;
+        }
+        previousWin.focus();
+        return false;
+    } else {
+        document.location.href = url;
+        return false;
+    }
+JSTHREE
+    }
+    $js .= <<"ENDJS";
+    return false;
+}
+// ]]>
+</script>
+ENDJS
+
+}
+
 #--- Called from submission routine
 sub processHandGrade {
     my ($request,$symb) = @_;
@@ -2492,7 +2762,7 @@ sub processHandGrade {
                                                      undef,undef,$showsymb,
                                                      $restitle);
 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
-				$msgstatus);
+				$msgstatus.'<br />');
 	    }
 	    if ($env{'form.collaborator'.$ctr}) {
 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
@@ -2670,7 +2940,7 @@ sub processHandGrade {
 	$ctr++;
     }
     if ($total < 0) {
-	my $the_end.=&mt('<b>Message: </b> No more students for this section or class.').'<br /><br />'."\n";
+	my $the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
 	$request->print($the_end);
     }
     return '';
@@ -2821,64 +3091,79 @@ sub handback_files {
         $request->print('<br />'.&navmap_errormsg().'<br />');
         return;
     }
+    my @handedback;
+    my $file_msg;
     my @part_response_id = &flatten_responseType($responseType);
     foreach my $part_response_id (@part_response_id) {
     	my ($part_id,$resp_id) = @{ $part_response_id };
 	my $part_resp = join('_',@{ $part_response_id });
-            if (($env{'form.'.$newflg.'_'.$part_resp.'_returndoc1'}) && ($new_part == $part_id)) {
-                # if multiple files are uploaded names will be 'returndoc2','returndoc3'
-                my $file_counter = 1;
-		my $file_msg;
-                while ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter}) {
-                    my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter.'.filename'};
+        if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
+            for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
+                # if multiple files are uploaded names will be 'returndoc2','returndoc3' 
+                if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
+                    my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
                     my ($directory,$answer_file) = 
-                        ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter} =~ /^(.*?)([^\/]*)$/);
+                        ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
                     my ($answer_name,$answer_ver,$answer_ext) =
 		        &file_name_version_ext($answer_file);
 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
                     my $getpropath = 1;
-		    my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,$domain,$stuname,$getpropath);
-		    my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
-                    # fix file name
+                    my ($dir_list,$listerror) = 
+                        &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
+                                                 $domain,$stuname,$getpropath);
+		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
+                    # fix filename
                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
-            	                                $newflg.'_'.$part_resp.'_returndoc'.$file_counter,
+            	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
             	                                $save_file_name);
                     if ($result !~ m|^/uploaded/|) {
                         $request->print('<br /><span class="LC_error">'.
                             &mt('An error occurred ([_1]) while trying to upload [_2].',
-                                $result,$newflg.'_'.$part_resp.'_returndoc'.$file_counter).
+                                $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
                                         '</span>');
                     } else {
                         # mark the file as read only
-                        my @files = ($save_file_name);
-                        my @what = ($symb,$env{'request.course.id'},'handback');
-                        &Apache::lonnet::mark_as_readonly($domain,$stuname,\@files,\@what);
+                        push(@handedback,$save_file_name);
 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 			}
                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
-			$file_msg.= "\n".'<br /><span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span><br />";
-
+			$file_msg.= '<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
                     }
-                    $request->print("<br />".$fname." will be the uploaded file name");
-                    $request->print(" ".$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter});
-                    $file_counter++;
+                    $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
                 }
-		my $subject = "File Handed Back by Instructor ";
-		my $message = "A file has been returned that was originally submitted in reponse to: <br />";
-		$message .= "<strong>".&Apache::lonnet::gettitle($symb)."</strong><br />";
-		$message .= ' The returned file(s) are named: '. $file_msg;
-		$message .= " and can be found in your portfolio space.";
-		my ($feedurl,$showsymb) = 
-		    &get_feedurl_and_symb($symb,$domain,$stuname);
-                my $restitle = &Apache::lonnet::gettitle($symb);
-		my $msgstatus = 
-                   &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject.
-			 ' (File Returned) ['.$restitle.']',$message,undef,
-                         $feedurl,undef,undef,undef,$showsymb,$restitle);
             }
         }
+    }
+    if (@handedback > 0) {
+        $request->print('<br />');
+        my @what = ($symb,$env{'request.course.id'},'handback');
+        &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
+        my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});    
+        my ($subject,$message);
+        if (scalar(@handedback) == 1) {
+            $subject = &mt_user($user_lh,'File Handed Back by Instructor');
+            $message = &mt_user($user_lh,'A file has been returned that was originally submitted in response to: ');
+        } else {
+            $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
+            $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
+        }
+        $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
+        $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
+                    &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
+        my ($feedurl,$showsymb) =
+            &get_feedurl_and_symb($symb,$domain,$stuname);
+        my $restitle = &Apache::lonnet::gettitle($symb);
+        $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
+        my $msgstatus =
+             &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
+                 $message,undef,$feedurl,undef,undef,undef,$showsymb,
+                 $restitle);
+        if ($msgstatus) {
+            $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
+        }
+    }
     return;
 }
 
@@ -2987,8 +3272,10 @@ sub version_portfiles {
 		my ($answer_name,$answer_ver,$answer_ext) =
 		    &file_name_version_ext($answer_file);
                 my $getpropath = 1;    
-                my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,$stu_name,$getpropath);
-                my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
+                my ($dir_list,$listerror) = 
+                    &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
+                                             $stu_name,$getpropath);
+                my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
                 if ($new_answer ne 'problem getting file') {
                     push(@versioned_portfiles, $directory.$new_answer);
@@ -3007,21 +3294,24 @@ sub version_portfiles {
 sub get_next_version {
     my ($answer_name, $answer_ext, $dir_list) = @_;
     my $version;
-    foreach my $row (@$dir_list) {
-        my ($file) = split(/\&/,$row,2);
-        my ($file_name,$file_version,$file_ext) =
-	    &file_name_version_ext($file);
-        if (($file_name eq $answer_name) && 
-	    ($file_ext eq $answer_ext)) {
-                # gets here if filename and extension match, regardless of version
+    if (ref($dir_list) eq 'ARRAY') {
+        foreach my $row (@{$dir_list}) {
+            my ($file) = split(/\&/,$row,2);
+            my ($file_name,$file_version,$file_ext) =
+	        &file_name_version_ext($file);
+            if (($file_name eq $answer_name) && 
+	        ($file_ext eq $answer_ext)) {
+                     # gets here if filename and extension match, 
+                     # regardless of version
                 if ($file_version ne '') {
-                # a versioned file is found  so save it for later
-                if ($file_version > $version) {
-		    $version = $file_version;
-	        }
+                    # a versioned file is found  so save it for later
+                    if ($file_version > $version) {
+		        $version = $file_version;
+	            }
+                }
             }
         }
-    } 
+    }
     $version ++;
     return($version);
 }
@@ -3305,9 +3595,10 @@ 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.'\','.
-		$weight{$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>'.
 	    '<option value="reset status">'.&mt('reset status').'</option>'.
@@ -3356,8 +3647,8 @@ 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 {
@@ -3852,11 +4143,12 @@ 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
 }
@@ -3977,7 +4269,7 @@ 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 />
+    $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
 <hr /></form>'."\n");
     return '';
 }
@@ -4010,6 +4302,7 @@ sub csvuploadassign {
     my ($classlist) = &getclasslist('all',0);
     my @notallowed;
     my @skipped;
+    my @warnings;
     my $countdone=0;
     foreach my $grade (@gradedata) {
 	my %entries=&Apache::loncommon::record_sep($grade);
@@ -4059,7 +4352,7 @@ sub csvuploadassign {
                     my $award=($pcr == 0) ? 'incorrect_by_override'
                                           : 'correct_by_override';
                     if ($pcr>1) {
-                       push(@skipped,&mt("[_1]: point value larger than weight","$username:$domain"));
+                       push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
                     }
                     $grades{"resource.$part.awarded"}=$pcr;
                     $grades{"resource.$part.solved"}=$award;
@@ -4105,6 +4398,10 @@ sub csvuploadassign {
         }
     }
     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
+    if (@warnings) {
+        $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
+        $request->print(join(', ',@warnings));
+    }
     if (@skipped) {
 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
         $request->print(join(', ',@skipped));
@@ -4160,48 +4457,68 @@ LISTJAVASCRIPT
     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 #    my $type=($curpage =~ /\.(page|sequence)/);
-    my $select = '<select name="selectpage">'."\n";
+
+    # Collection of hidden fields
     my $ctr=0;
     foreach (@$titles) {
-	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
-	$select.='<option value="'.$ctr.'" '.
-	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
-	    '>'.$showtitle.'</option>'."\n";
-	$ctr++;
+        my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+        $result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
+        $result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
+        $ctr++;
     }
-    $select.= '</select>';
-    $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
+    $result.='<input type="hidden" name="page" />'."\n".
+        '<input type="hidden" name="title" />'."\n";
+
+    $result.=&build_section_inputs();
+    my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
+    $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
+	'<input type="hidden" name="command" value="displayPage" />'."\n".
+	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 
+    # Show grading options
+    $result.=&Apache::lonhtmlcommon::start_pick_box();
+    my $select = '<select name="selectpage">'."\n";
     $ctr=0;
     foreach (@$titles) {
 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
-	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
-	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
+	$select.='<option value="'.$ctr.'"'.
+	    ($$symbx{$_} =~ /$curpage$/ ? ' selected="selected"' : '').
+	    '>'.$showtitle.'</option>'."\n";
 	$ctr++;
     }
-    $result.='<input type="hidden" name="page" />'."\n".
-	'<input type="hidden" name="title" />'."\n";
+    $select.= '</select>';
 
-    my $options =
-	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
-	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
-    $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
-
-    $options =
-	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
-	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
-	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
-    $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
+    $result.=
+        &Apache::lonhtmlcommon::row_title(&mt('Problems from'))
+       .$select
+       .&Apache::lonhtmlcommon::row_closure();
+
+    $result.=
+        &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
+       .'<label><input type="radio" name="vProb" value="no"'
+           .' checked="checked" /> '.&mt('no').' </label>'."\n"
+       .'<label><input type="radio" name="vProb" value="yes" />'
+           .&mt('yes').'</label>'."\n"
+       .&Apache::lonhtmlcommon::row_closure();
+
+    $result.=
+        &Apache::lonhtmlcommon::row_title(&mt('View Submissions'))
+       .'<label><input type="radio" name="lastSub" value="none" /> '
+           .&mt('none').' </label>'."\n"
+       .'<label><input type="radio" name="lastSub" value="datesub"'
+           .' checked="checked" /> '.&mt('all submissions').'</label>'."\n"
+       .'<label><input type="radio" name="lastSub" value="all" /> '
+           .&mt('all submissions with details').' </label>'
+       .&Apache::lonhtmlcommon::row_closure();
     
-    $result.=&build_section_inputs();
-    my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
-    $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
-	'<input type="hidden" name="command" value="displayPage" />'."\n".
-	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."<br />\n";
+    $result.=
+        &Apache::lonhtmlcommon::row_title(&mt('Use CODE'))
+       .'<input type="text" name="CODE" value="" />'
+       .&Apache::lonhtmlcommon::row_closure(1)
+       .&Apache::lonhtmlcommon::end_pick_box();
 
-    $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
-
-    $result.='&nbsp;<input type="button" '.
+    # Show list of students to select for grading
+    $result.='<br /><input type="button" '.
              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 
     $request->print($result);
@@ -4346,7 +4663,7 @@ sub displayPage {
         '</span>'."\n".
 	&Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
-	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
+	'<th>'.&mt('Prob.').'</th>'.
 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 	&Apache::loncommon::end_data_table_header_row();
 
@@ -4366,8 +4683,8 @@ sub displayPage {
 		&Apache::loncommon::start_data_table_row().
 		'<td align="center" valign="top" >'.$prob.
 		(scalar(@{$parts}) == 1 ? '' 
-		                        : '<br />('.&mt('[_1]&nbsp;parts)',
-							scalar(@{$parts}))
+		                        : '<br />('.&mt('[_1]parts',
+							scalar(@{$parts}).'&nbsp;').')'
 		 ).
 		 '</td>';
 	    $studentTable.='<td valign="top">';
@@ -4448,6 +4765,7 @@ sub displaySubByDates {
 	&Apache::loncommon::start_data_table_header_row().
 	'<th>'.&mt('Date/Time').'</th>'.
 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
+        ($isTask?'<th>'.&mt('Version').'</th>':'').
 	'<th>'.&mt('Submission').'</th>'.
 	'<th>'.&mt('Status').'</th>'.
 	&Apache::loncommon::end_data_table_header_row();
@@ -4461,13 +4779,16 @@ sub displaySubByDates {
 
     my $interaction;
     my $no_increment = 1;
+    my %lastrndseed;
     for ($version=1;$version<=$$record{'version'};$version++) {
 	my $timestamp = 
 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 	if (exists($$record{$version.':resource.0.version'})) {
 	    $interaction = $$record{$version.':resource.0.version'};
 	}
-
+        if ($isTask && $env{'form.previousversion'}) {
+            next unless ($interaction == $env{'form.previousversion'});
+        }
 	my $where = ($isTask ? "$version:resource.$interaction"
 		             : "$version:resource");
 	$studentTable.=&Apache::loncommon::start_data_table_row().
@@ -4475,12 +4796,15 @@ sub displaySubByDates {
 	if ($isCODE) {
 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 	}
+        if ($isTask) {
+            $studentTable.='<td>'.$interaction.'</td>';
+        }
 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 	my @displaySub = ();
 	foreach my $partid (@{$parts}) {
-            my $hidden;
-            if (($$record{$version.':resource.'.$partid.'.type'} eq 'anonsurvey') ||
-                ($$record{$version.':resource.'.$partid.'.type'} eq 'anonsurveycred')) {
+            my ($hidden,$type);
+            $type = $$record{$version.':resource.'.$partid.'.type'};
+            if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
                 $hidden = 1;
             }
 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
@@ -4494,7 +4818,7 @@ sub displaySubByDates {
                     
 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
-                    $displaySub[0].='<span class="LC_nobreak"';
+                    $displaySub[0].='<span class="LC_nobreak">';
                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
                                    .' <span class="LC_internal_info">'
                                    .'('.&mt('Response ID: [_1]',$responseId).')'
@@ -4503,23 +4827,34 @@ sub displaySubByDates {
                     if ($hidden) {
                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
                     } else {
+                        my ($trial,$rndseed,$newvariation);
+                        if ($type eq 'randomizetry') {
+                            $trial = $$record{"$where.$partid.tries"};
+                            $rndseed = $$record{"$where.$partid.rndseed"};
+                        }
 		        if ($$record{"$where.$partid.tries"} eq '') {
 			    $displaySub[0].=&mt('Trial not counted');
 		        } else {
 			    $displaySub[0].=&mt('Trial: [_1]',
 					    $$record{"$where.$partid.tries"});
+                            if ($rndseed || $lastrndseed{$partid}) {
+                                if ($rndseed ne $lastrndseed{$partid}) {
+                                    $newvariation = '&nbsp;('.&mt('New variation this try').')';
+                                }
+                            }
+                            $lastrndseed{$partid} = $rndseed;
 		        }
 		        my $responseType=($isTask ? 'Task'
                                               : $responseType->{$partid}->{$responseId});
 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
-		        if (!exists($orders{$partid}->{$responseId})) {
+		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
 			    $orders{$partid}->{$responseId}=
 			        &get_order($partid,$responseId,$symb,$uname,$udom,
-                                           $no_increment);
+                                           $no_increment,$type,$trial,$rndseed);
 		        }
-		        $displaySub[0].='</b></span>'; # /nobreak
+		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
 		        $displaySub[0].='&nbsp; '.
-			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom).'<br />';
+			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
                     }
 		}
 	    }
@@ -4618,7 +4953,7 @@ sub updateGradeByPage {
 		&Apache::loncommon::start_data_table_row().
 		'<td align="center" valign="top" >'.$prob.
 		(scalar(@{$parts}) == 1 ? '' 
-                                        : '<br />('.&mt('[quant,_1,&nbsp;part]',scalar(@{$parts}))
+                                        : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
 		.')').'</td>';
 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 
@@ -4740,19 +5075,19 @@ sub updateGradeByPage {
    from the file that we are parsing that represents one entire sheet
 
    'bubble line' refers to the data
-   representing the line of bubbles that are on the physical bubble sheet
+   representing the line of bubbles that are on the physical bubblesheet
 
 
-The overall process is that a scanned in bubble sheet data is uploaded
+The overall process is that a scanned in bubblesheet data is uploaded
 into a course. When a user wants to grade, they select a
-sequence/folder of resources, a file of bubble sheet info, and pick
+sequence/folder of resources, a file of bubblesheet info, and pick
 one of the predefined configurations for what each scanline looks
 like.
 
 Next each scanline is checked for any errors of either 'missing
 bubbles' (it's an error because it may have been mis-scanned
 because too light bubbling), 'double bubble' (each bubble line should
-have no more 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
@@ -4761,14 +5096,14 @@ username:domain.
 
 During the validation phase the instructor can choose to skip scanlines. 
 
-After the validation phase, there are now 3 bubble sheet files
+After the validation phase, there are now 3 bubblesheet files
 
   scantron_original_filename (unmodified original file)
   scantron_corrected_filename (file where the corrected information has replaced the original information)
   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 
 Also there is a separate hash nohist_scantrondata that contains extra
-correction information that isn't representable in the bubble sheet
+correction information that isn't representable in the bubblesheet
 file (see &scantron_getfile() for more information)
 
 After all scanlines are either valid, marked as valid or skipped, then
@@ -4840,6 +5175,11 @@ 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.
 
 
@@ -4853,12 +5193,17 @@ 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;
@@ -4868,28 +5213,12 @@ 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
@@ -4902,14 +5231,16 @@ sub scantron_filenames {
     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
     my $getpropath = 1;
-    my @files=&Apache::lonnet::dirlist('userfiles',$cdom,$cname,
-                                       $getpropath);
+    my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
+                                                        $cname,$getpropath);
     my @possiblenames;
-    foreach my $filename (sort(@files)) {
-	($filename)=split(/&/,$filename);
-	if ($filename!~/^scantron_orig_/) { next ; }
-	$filename=~s/^scantron_orig_//;
-	push(@possiblenames,$filename);
+    if (ref($dirlist) eq 'ARRAY') {
+        foreach my $filename (sort(@{$dirlist})) {
+	    ($filename)=split(/&/,$filename);
+	    if ($filename!~/^scantron_orig_/) { next ; }
+	    $filename=~s/^scantron_orig_//;
+	    push(@possiblenames,$filename);
+        }
     }
     return @possiblenames;
 }
@@ -5063,7 +5394,7 @@ sub scantron_CODEunique {
 
 =item scantron_selectphase
 
-  Generates the initial screen to start the bubble sheet process.
+  Generates the initial screen to start the bubblesheet process.
   Allows for - starting a grading run.
              - downloading existing scan data (original, corrected
                                                 or skipped info)
@@ -5215,7 +5546,7 @@ 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".
@@ -5304,6 +5635,8 @@ sub scantron_selectphase {
  
       LastName    - column that the last name starts in
       LastNameLength - number of columns that the last name spans
+      BubblesPerRow - number of bubbles available in each row used to 
+                      bubble an answer. (If not specified, 10 assumed).
 
 =cut
 
@@ -5334,6 +5667,7 @@ sub get_scantron_config {
 	$config{'FirstNamelength'}=$config[14];
 	$config{'LastName'}=$config[15];
 	$config{'LastNamelength'}=$config[16];
+        $config{'BubblesPerRow'}=$config[17];
 	last;
     }
     return %config;
@@ -5545,6 +5879,27 @@ 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
 
@@ -5589,12 +5944,12 @@ 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 ||
@@ -5630,10 +5985,29 @@ 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++;
@@ -5642,11 +6016,16 @@ 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 =
                     ($$scantron_config{'Qlength'} * $subans)  || 1;
@@ -5657,10 +6036,13 @@ sub scantron_parse_scanline {
                     ($$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 ++;
             }
@@ -5669,11 +6051,13 @@ 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);
             }
         }
     }
@@ -5681,9 +6065,66 @@ 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
@@ -5702,19 +6143,23 @@ 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); 
     }
@@ -5762,7 +6207,8 @@ 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
@@ -5804,12 +6250,16 @@ 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'}) && 
                    (!$doubleerror)) {
@@ -5991,7 +6441,11 @@ sub scantron_process_corrections {
 	}
     }
     if ($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);
@@ -6083,7 +6537,7 @@ sub remember_current_skipped {
 =item check_for_error
 
     Checks if there was an error when attempting to remove a specific
-    scantron_.. bubble sheet data file. Prints out an error if
+    scantron_.. bubblesheet data file. Prints out an error if
     something went wrong.
 
 =cut
@@ -6105,7 +6559,7 @@ sub check_for_error {
 =cut
 
 sub scantron_warning_screen {
-    my ($button_text)=@_;
+    my ($button_text,$symb)=@_;
     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
     my $CODElist;
@@ -6118,19 +6572,24 @@ sub scantron_warning_screen {
 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
     }
+    my $lastbubblepoints;
+    if ($env{'form.scantron_lastbubblepoints'} ne '') {
+        $lastbubblepoints =
+            '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
+            $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
+    }
     return ('
 <p>
 <span class="LC_warning">
-'.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
+'.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
 </p>
 <table>
 <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
-'.$CODElist.'
+'.$CODElist.$lastbubblepoints.'
 </table>
-<br />
-<p> '.&mt('If this information is correct, please click on \'[_1]\'.',&mt($button_text)).'</p>
-<p> '.&mt('If something is incorrect, please click the \'Grading Menu\' button to start over.').'</p>
+<p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'<br />
+'.&mt('If something is incorrect, please return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>
 
 <br />
 ');
@@ -6153,20 +6612,21 @@ sub scantron_do_warning {
     if ( $env{'form.selectpage'} eq '' ||
 	 $env{'form.scantron_selectfile'} eq '' ||
 	 $env{'form.scantron_format'} eq '' ) {
-	$r->print("<p>".&mt('You have forgetten to specify some information. Please go Back and try again.')."</p>");
+	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
 	if ( $env{'form.selectpage'} eq '') {
 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 	} 
 	if ( $env{'form.scantron_selectfile'} eq '') {
-	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a file that contains the student\'s response data.').'</span></p>');
+	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
 	} 
 	if ( $env{'form.scantron_format'} eq '') {
-	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a the format of the student\'s response data.').'</span></p>');
+	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
 	} 
     } else {
-	my $warning=&scantron_warning_screen('Grading: Validate Records');
+	my $warning=&scantron_warning_screen('Grading: Validate Records',$symb);
+        my $bubbledbyhand=&hand_bubble_option();
 	$r->print('
-'.$warning.'
+'.$warning.$bubbledbyhand.'
 <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 <input type="hidden" name="command" value="scantron_validate" />
 ');
@@ -6208,9 +6668,11 @@ 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;
 }
 
@@ -6218,7 +6680,7 @@ SCANTRONFORM
 
 =item scantron_validate_file
 
-    Dispatch routine for doing validation of a bubble sheet data file.
+    Dispatch routine for doing validation of a bubblesheet data file.
 
     Also processes any necessary information resets that need to
     occur before validation begins (ignore previous corrections,
@@ -6231,7 +6693,7 @@ 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();
@@ -6255,12 +6717,16 @@ sub scantron_validate_file {
     #get the student pick code ready
     $r->print(&Apache::loncommon::studentbrowser_javascript());
     my $nav_error;
-    my $max_bubble=&scantron_get_maxbubble(\$nav_error);
+    my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+    my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return '';
     }
     my $result=&scantron_form_start($max_bubble).$default_form_data;
+    if ($env{'form.scantron_lastbubblepoints'} ne '') {
+        $result .= '<input type="hidden" name="scantron_lastbubblepoints" value="'.$env{'form.scantron_lastbubblepoints'}.'" />';
+    }
     $r->print($result);
     
     my @validate_phases=( 'sequence',
@@ -6278,6 +6744,7 @@ 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[$currentphase];
 	{
 	    no strict 'refs';
@@ -6285,7 +6752,7 @@ sub scantron_validate_file {
 	}
     }
     if (!$stop) {
-	my $warning=&scantron_warning_screen('Start Grading');
+	my $warning=&scantron_warning_screen('Start Grading',$symb);
 	$r->print(&mt('Validation process complete.').'<br />'.
                   $warning.
                   &mt('Perform verification for each student after storage of submissions?').
@@ -6295,7 +6762,7 @@ sub scantron_validate_file {
                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
                   '</label></span><br />'.
                   &mt('Grading will take longer if you use verification.').'<br />'.
-                  &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'<br /><br />'.
+                  &mt('Otherwise, Grade/Manage/Review Bubblesheets [_1] Review bubblesheet data can be used once grading is complete.','&raquo;').'<br /><br />'.
                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
     } else {
@@ -6307,7 +6774,7 @@ sub scantron_validate_file {
 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 	    $r->print(' '.&mt('this error').' <br />');
 
-	    $r->print(" <p>".&mt("Or click the 'Grading Menu' button to start over.")."</p>");
+	    $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>');
 	} else {
             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
@@ -6328,7 +6795,7 @@ sub scantron_validate_file {
 
 =item scantron_remove_file
 
-   Removes the requested bubble sheet data file, makes sure that
+   Removes the requested bubblesheet data file, makes sure that
    scantron_original_<filename> is never removed
 
 
@@ -6353,7 +6820,7 @@ sub scantron_remove_file {
 
 =item scantron_remove_scan_data
 
-   Removes all scan_data correction for the requested bubble sheet
+   Removes all scan_data correction for the requested bubblesheet
    data file.  (In the case that both the are doing skipped records we need
    to remember the old skipped lines for the time being so that element
    persists for a while.)
@@ -6390,7 +6857,7 @@ sub scantron_remove_scan_data {
 
 =item scantron_getfile
 
-    Fetches the requested bubble sheet data file (all 3 versions), and
+    Fetches the requested bubblesheet data file (all 3 versions), and
     the scan_data hash
   
   Arguments:
@@ -6490,7 +6957,7 @@ sub lonnet_putfile {
 
 =item scantron_putfile
 
-    Stores the current version of the bubble sheet data files, and the
+    Stores the current version of the bubblesheet data files, and the
     scan_data hash. (Does not modify the original version only the
     corrected and skipped versions.
 
@@ -6584,7 +7051,7 @@ sub get_todo_count {
 
 =item scantron_put_line
 
-    Updates the 'corrected' or 'skipped' versions of the bubble sheet
+    Updates the 'corrected' or 'skipped' versions of the bubblesheet
     data file.
 
  Arguments:
@@ -6686,7 +7153,13 @@ sub scantron_validate_sequence {
 	my @resources=
 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 	if (@resources) {
-	    $r->print("<p>".&mt('Some resources in the sequence currently are not set to exam mode. Grading these resources currently may not work correctly.')."</p>");
+	    $r->print(
+                '<p class="LC_warning">'
+               .&mt('Some resources in the sequence currently are not set to'
+                   .' bubblesheet exam mode. Grading these resources currently may not'
+                   .' work correctly.')
+               .'</p>'
+            );
 	    return (1,$currentphase);
 	}
     }
@@ -6708,7 +7181,7 @@ sub scantron_validate_ID {
     my ($scanlines,$scan_data)=&scantron_getfile();
 
     my $nav_error;
-    &scantron_get_maxbubble(\$nav_error); # parse needs the bubble_lines.. array.
+    &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return(1,$currentphase);
@@ -6767,25 +7240,35 @@ 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
 
     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
-	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
-			    " for PaperID <tt>[_1]</tt>",
-			    $$scan_record{'scantron.PaperID'})."</p> \n");
-    } else {
-	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
-			    " in scanline [_1] <pre>[_2]</pre>",
-			    $i,$line)."</p> \n");
-    }
-    my $message="<p>".&mt("The ID on the form is  <tt>[_1]</tt><br />".
-			  "The name on the paper is [_2],[_3]",
-			  $$scan_record{'scantron.ID'},
-			  $$scan_record{'scantron.LastName'},
-			  $$scan_record{'scantron.FirstName'})."</p>";
+        $r->print(
+            '<p class="LC_warning">'
+           .&mt('An error was detected ([_1]) for PaperID [_2]',
+                "<b>$error</b>",
+                '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
+           ."</p> \n");
+    } else {
+        $r->print(
+            '<p class="LC_warning">'
+           .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
+                "<b>$error</b>", $i, "<pre>$line</pre>")
+           ."</p> \n");
+    }
+    my $message =
+        '<p>'
+       .&mt('The ID on the form is [_1]',
+            "<tt>$$scan_record{'scantron.ID'}</tt>")
+       .'<br />'
+       .&mt('The name on the paper is [_1], [_2]',
+            $$scan_record{'scantron.LastName'},
+            $$scan_record{'scantron.FirstName'})
+       .'</p>';
 
     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
@@ -6795,10 +7278,10 @@ sub scantron_get_correction {
 
     if ($error =~ /ID$/) {
 	if ($error eq 'incorrectID') {
-	    $r->print("<p>".&mt("The encoded ID is not in the classlist").
+            $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
 		      "</p>\n");
 	} elsif ($error eq 'duplicateID') {
-	    $r->print("<p>".&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
+            $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 	}
 	$r->print($message);
 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
@@ -6808,20 +7291,21 @@ sub scantron_get_correction {
 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 				       'scantron_username','scantron_domain'));
 	$r->print(": <input type='text' name='scantron_username' value='' />");
-	$r->print("\n@".
+	$r->print("\n:\n".
 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 
 	$r->print('</li>');
     } elsif ($error =~ /CODE$/) {
 	if ($error eq 'incorrectCODE') {
-	    $r->print("<p>".&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
+	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 	} elsif ($error eq 'duplicateCODE') {
-	    $r->print("<p>".&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
+	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 	}
-	$r->print("<p>".&mt("The CODE on the form is  <tt>'[_1]'</tt>",
-			    $$scan_record{'scantron.CODE'})."<br />\n");
+	$r->print("<p>".&mt('The CODE on the form is [_1]',
+			    "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
+                 ."</p>\n");
 	$r->print($message);
-	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
+	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
 	$r->print("\n<br /> ");
 	my $i=0;
 	if ($error eq 'incorrectCODE' 
@@ -6848,7 +7332,7 @@ sub scantron_get_correction {
 	    $r->print("
     <label>
         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
-       ".&mt("Use the CODE [_1] that is was on the paper, ignoring the error.",
+       ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
     </label>");
 	    $r->print("\n<br />");
@@ -6886,12 +7370,13 @@ ENDSCRIPT
 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 	$r->print("\n<br /><br />");
     } elsif ($error eq 'doublebubble') {
-	$r->print("<p>".&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
+	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 
 	# The form field scantron_questions is acutally a list of line numbers.
 	# represented by this form so:
 
-	my $line_list = &questions_to_line_list($arg);
+	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                $respnumlookup,$startline);
 
 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 		  $line_list.'" />');
@@ -6899,12 +7384,14 @@ 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);
 	}
         $r->print(&verify_bubbles_checked(@lines_to_correct));
     } elsif ($error eq 'missingbubble') {
-	$r->print("<p>".&mt("There have been <b>no</b> bubbles scanned for some question(s)")."</p>\n");
+	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
 	$r->print($message);
 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
@@ -6912,14 +7399,17 @@ ENDSCRIPT
 	# The form field scantron_questions is actually a list of line numbers not
 	# a list of question numbers. Therefore:
 	#
-	
-	my $line_list = &questions_to_line_list($arg);
+
+	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));
@@ -6970,12 +7460,20 @@ 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}) {
@@ -6984,8 +7482,16 @@ 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];
@@ -6993,8 +7499,16 @@ 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));
@@ -7016,6 +7530,15 @@ 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.
@@ -7040,15 +7563,26 @@ 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} + 1;
+        }
+        $current_line = $first + 1 ;
+        my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
         my $subcount = 1;
         while ($subcount<$subquestion) {
             $current_line += $subans[$subcount-1];
@@ -7056,25 +7590,43 @@ 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 = $$scan_record{"scantron.$current_line.answer"};
-	&scantron_bubble_selector($r,$scan_config,$current_line, 
+	&scantron_bubble_selector($r,$scan_config,$current_line,
 	        		  $questionnum,$error,split('', $selected));
         push(@linenums,$current_line);
 	$current_line++;
@@ -7107,7 +7659,19 @@ sub scantron_bubble_selector {
     my $max=$$scan_config{'Qlength'};
 
     my $scmode=$$scan_config{'Qon'};
-    if ($scmode eq 'number' || $scmode eq 'letter') { $max=10; }	     
+    if ($scmode eq 'number' || $scmode eq 'letter') { 
+        if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
+            ($$scan_config{'BubblesPerRow'} > 0)) {
+            $max=$$scan_config{'BubblesPerRow'};
+            if (($scmode eq 'number') && ($max > 10)) {
+                $max = 10;
+            } elsif (($scmode eq 'letter') && $max > 26) {
+                $max = 26;
+            }
+        } else {
+            $max = 10;
+        }
+    }
 
     my @alphabet=('A'..'Z');
     $r->print(&Apache::loncommon::start_data_table().
@@ -7262,7 +7826,7 @@ sub scantron_validate_CODE {
     my %allcodes=&get_codes();
 
     my $nav_error;
-    &scantron_get_maxbubble(\$nav_error); # parse needs the lines per response array.
+    &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return(1,$currentphase);
@@ -7316,12 +7880,43 @@ 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 $nav_error;
-    &scantron_get_maxbubble(\$nav_error); # parse needs the bubble line array.
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+        if ($randomorder || $randompick) {
+            $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+            if ($nav_error) {
+                $r->print(&navmap_errormsg());
+                return(1,$currentphase);
+            }
+            &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                    \%grader_randomlists_by_symb,$bubbles_per_row);
+        }
+    } else {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
+    &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return(1,$currentphase);
@@ -7331,11 +7926,15 @@ 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);
@@ -7343,7 +7942,7 @@ sub scantron_validate_doublebubble {
 
 
 sub scantron_get_maxbubble {
-    my ($nav_error) = @_;
+    my ($nav_error,$scantron_config) = @_;
     if (defined($env{'form.scantron_maxbubble'}) &&
 	$env{'form.scantron_maxbubble'}) {
 	&restore_bubble_lines();
@@ -7362,6 +7961,7 @@ sub scantron_get_maxbubble {
     }
     my $map=$navmap->getResourceByUrl($sequence);
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
 
     &Apache::lonxml::clear_problem_counter();
 
@@ -7373,11 +7973,14 @@ 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 $resource (@resources) {
-        my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,$udom);
+        my $resid = $resource->id(); 
+        my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
+                                                          $udom,undef,$bubbles_per_row);
         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 	    foreach my $part_id (@{$parts}) {
                 my $lines;
@@ -7406,9 +8009,10 @@ sub scantron_get_maxbubble {
                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
                     }
-                    my $bubbles_per_line = 10;
-                    my $inner_bubble_lines = int($numbub/$bubbles_per_line);
-                    if (($numbub % $bubbles_per_line) != 0) {
+                    my $bubbles_per_row =
+                        &bubblesheet_bubbles_per_row($scantron_config);
+                    my $inner_bubble_lines = int($numbub/$bubbles_per_row);
+                    if (($numbub % $bubbles_per_row) != 0) {
                         $inner_bubble_lines++;
                     }
                     for (my $i=0; $i<$numshown; $i++) {
@@ -7419,12 +8023,13 @@ sub scantron_get_maxbubble {
                     $lines = $numshown * $inner_bubble_lines;
                 } else {
                     $lines = $analysis->{"$part_id.bubble_lines"};
-                } 
+                }
 
                 $first_bubble_line{$response_number} = $bubble_line;
 	        $bubble_lines_per_response{$response_number} = $lines;
                 $responsetype_per_response{$response_number} = 
                     $analysis->{$part_id.'.type'};
+                $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;  
 	        $response_number++;
 
 	        $bubble_line +=  $lines;
@@ -7440,26 +8045,76 @@ sub scantron_get_maxbubble {
     return $env{'form.scantron_maxbubble'};
 }
 
+sub bubblesheet_bubbles_per_row {
+    my ($scantron_config) = @_;
+    my $bubbles_per_row;
+    if (ref($scantron_config) eq 'HASH') {
+        $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
+    }
+    if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
+        $bubbles_per_row = 10;
+    }
+    return $bubbles_per_row;
+}
+
 sub scantron_validate_missingbubbles {
     my ($r,$currentphase) = @_;
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my (undef,undef,$sequence)=
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
 
     #get scantron line setup
     my %scantron_config=&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;
-    my $max_bubble=&scantron_get_maxbubble(\$nav_error);
+    if (ref($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;
 	
@@ -7470,9 +8125,16 @@ sub scantron_validate_missingbubbles {
             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 ($first,$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];
@@ -7481,15 +8143,25 @@ sub scantron_validate_missingbubbles {
                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);
 	}
 
@@ -7497,6 +8169,41 @@ sub scantron_validate_missingbubbles {
     return (0,$currentphase+1);
 }
 
+sub hand_bubble_option {
+    my (undef, undef, $sequence) =
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
+    return if ($sequence eq '');
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    unless (ref($navmap)) {
+        return;
+    }
+    my $needs_hand_bubbles;
+    my $map=$navmap->getResourceByUrl($sequence);
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    foreach my $res (@resources) {
+        if (ref($res)) {
+            if ($res->is_problem()) {
+                my $partlist = $res->parts();
+                foreach my $part (@{ $partlist }) {
+                    my @types = $res->responseType($part);
+                    if (grep(/^(chem|essay|image|formula|math|string|functionplot)$/,@types)) {
+                        $needs_hand_bubbles = 1;
+                        last;
+                    }
+                }
+            }
+        }
+    }
+    if ($needs_hand_bubbles) {
+        my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+        my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+        return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
+               &mt('If you have already graded these by bubbling sheets to indicate points awarded, [_1]what point value is assigned to a filled last bubble in each row?','<br />').
+               '<label><input type="radio" name="scantron_lastbubblepoints" value="'.$bubbles_per_row.'" checked="checked" />'.&mt('[quant,_1,point]',$bubbles_per_row).'</label>&nbsp;'.&mt('or').'&nbsp;'.
+               '<label><input type="radio" name="scantron_lastbubblepoints" value="0"/>0 points</label></p>';
+    }
+    return;
+}
 
 sub scantron_process_students {
     my ($r,$symb) = @_;
@@ -7508,6 +8215,7 @@ sub scantron_process_students {
     my $default_form_data=&defaultFormData($symb);
 
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config); 
     my ($scanlines,$scan_data)=&scantron_getfile();
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
@@ -7515,36 +8223,28 @@ sub scantron_process_students {
     unless (ref($navmap)) {
         $r->print(&navmap_errormsg());
         return '';
-    }  
-    my $map=$navmap->getResourceByUrl($sequence);
-    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb);
-    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
-                            \%grader_randomlists_by_symb);
-    my $resource_error;
-    foreach my $resource (@resources) {
-        my $ressymb;
-        if (ref($resource)) {
-            $ressymb = $resource->symb();
-        } else {
-            $resource_error = 1;
-            last;
-        }
-        my ($analysis,$parts) =
-            &scantron_partids_tograde($resource,$env{'request.course.id'},
-                                      $env{'user.name'},$env{'user.domain'},1);
-        $grader_partids_by_symb{$ressymb} = $parts;
-        if (ref($analysis) eq 'HASH') {
-            if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
-                $grader_randomlists_by_symb{$ressymb} = 
-                    $analysis->{'parts_withrandomlist'};
-            }
-        }
     }
-    if ($resource_error) {
+    my $map=$navmap->getResourceByUrl($sequence);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb);
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+    } else {
         $r->print(&navmap_errormsg());
         return '';
     }
+    my $nav_error;
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    if ($randomorder || $randompick) {
+        $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+        if ($nav_error) {
+            $r->print(&navmap_errormsg());
+            return '';
+        }
+    }
+    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                            \%grader_randomlists_by_symb,$bubbles_per_row);
 
     my ($uname,$udom);
     my $result= <<SCANTRONFORM;
@@ -7559,18 +8259,14 @@ SCANTRONFORM
     
     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
     my $count=&get_todo_count($scanlines,$scan_data);
-    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet Status',
- 				    'Bubblesheet Progress',$count,
-				    'inline',undef,'scantronupload');
-    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
-					  'Processing first student');
+    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
     $r->print('<br />');
     my $start=&Time::HiRes::time();
     my $i=-1;
     my $started;
 
-    my $nav_error;
-    &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse.
+    &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return '';
@@ -7588,6 +8284,7 @@ SCANTRONFORM
 
     my %lettdig = &letter_to_digits();
     my $numletts = scalar(keys(%lettdig));
+    my %orderedforcode;
 
     while ($i<$scanlines->{'count'}) {
  	($uname,$udom)=('','');
@@ -7595,12 +8292,18 @@ SCANTRONFORM
  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
  	if ($line=~/^[\s\cz]*$/) { next; }
 	if ($started) {
-	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
-						     'last student');
+	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
 	}
 	$started=1;
+        my %respnumlookup = ();
+        my %startline = ();
+        my $total;
  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
- 						 $scan_data);
+                                                 $scan_data,undef,\%idmap,$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,$line,
@@ -7612,10 +8315,26 @@ SCANTRONFORM
  				'Student '.$uname.' has multiple sheets',2);
  	    next;
  	}
+        my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
+        my $user = $uname.':'.$usec;
   	($uname,$udom)=split(/:/,$uname);
 
+        my $scancode;
+        if ((exists($scan_record->{'scantron.CODE'})) &&
+            (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
+            $scancode = $scan_record->{'scantron.CODE'};
+        } else {
+            $scancode = '';
+        }
+
+        my @mapresources = @resources;
+        if ($randomorder || $randompick) {
+            @mapresources = 
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
+        }
         my (%partids_by_symb,$res_error);
-        foreach my $resource (@resources) {
+        foreach my $resource (@mapresources) {
             my $ressymb;
             if (ref($resource)) {
                 $ressymb = $resource->symb();
@@ -7626,7 +8345,8 @@ SCANTRONFORM
             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
                 my ($analysis,$parts) =
-                    &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom);
+                    &scantron_partids_tograde($resource,$env{'request.course.id'},
+                                              $uname,$udom,undef,$bubbles_per_row);
                 $partids_by_symb{$ressymb} = $parts;
             } else {
                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
@@ -7646,16 +8366,11 @@ SCANTRONFORM
 	    &scantron_putfile($scanlines,$scan_data);
 	}
 	
-        my $scancode;
-        if ((exists($scan_record->{'scantron.CODE'})) &&
-            (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
-            $scancode = $scan_record->{'scantron.CODE'};
-        } else {
-            $scancode = '';
-        }
-
         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
-                                   \@resources,\%partids_by_symb) eq 'ssi_error') {
+                                   \@mapresources,\%partids_by_symb,
+                                   $bubbles_per_row,$randomorder,$randompick,
+                                   \%respnumlookup,\%startline) 
+            eq 'ssi_error') {
             $ssi_error = 0; # So end of handler error message does not trigger.
             $r->print("</form>");
             &ssi_print_error($r);
@@ -7663,26 +8378,43 @@ 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);
             $studentdata =~ s/\r$//;
             my $studentrecord = '';
             my $counter = -1;
-            foreach my $resource (@resources) {
+            foreach my $resource (@mapresources) {
                 my $ressymb = $resource->symb();
                 ($counter,my $recording) =
                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                              $counter,$studentdata,$partids_by_symb{$ressymb},
-                                             \%scantron_config,\%lettdig,$numletts);
+                                             \%scantron_config,\%lettdig,$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,
-                                           \@resources,\%partids_by_symb) eq 'ssi_error') {
+                                           \@mapresources,\%partids_by_symb,
+                                           $bubbles_per_row,$randomorder,$randompick,
+                                           \%respnumlookup,\%startline) 
+                    eq 'ssi_error') {
                     $ssi_error = 0; # So end of handler error message does not trigger.
                     $r->print("</form>");
                     &ssi_print_error($r);
@@ -7692,21 +8424,23 @@ SCANTRONFORM
                 }
                 $counter = -1;
                 $studentrecord = '';
-                foreach my $resource (@resources) {
+                foreach my $resource (@mapresources) {
                     my $ressymb = $resource->symb();
                     ($counter,my $recording) =
                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
-                                                 \%scantron_config,\%lettdig,$numletts);
+                                                 \%scantron_config,\%lettdig,$numletts,
+                                                 $randomorder,$randompick,\%respnumlookup,
+                                                 \%startline);
                     $studentrecord .= $recording;
                 }
                 if ($studentrecord ne $studentdata) {
-                    $r->print('<p><span class="LC_error">');
+                    $r->print('<p><span class="LC_warning">');
                     if ($scancode eq '') {
-                        $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2].',
+                        $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
                     } else {
-                        $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2] and CODE: [_3].',
+                        $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
                     }
                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
@@ -7714,12 +8448,12 @@ SCANTRONFORM
                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
                               &Apache::loncommon::end_data_table_header_row()."\n".
                               &Apache::loncommon::start_data_table_row().
-                              '<td>'.&mt('Bubble Sheet').'</td>'.
-                              '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
+                              '<td>'.&mt('Bubblesheet').'</td>'.
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::start_data_table_row().
-                              '<td>Stored submissions</td>'.
-                              '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
+                              '<td>'.&mt('Stored submissions').'</td>'.
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::end_data_table().'</p>');
                 } else {
@@ -7745,14 +8479,16 @@ SCANTRONFORM
 }
 
 sub graders_resources_pass {
-    my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb) = @_;
+    my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
+        $bubbles_per_row) = @_;
     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
         (ref($grader_randomlists_by_symb) eq 'HASH')) {
         foreach my $resource (@{$resources}) {
             my $ressymb = $resource->symb();
             my ($analysis,$parts) =
                 &scantron_partids_tograde($resource,$env{'request.course.id'},
-                                          $env{'user.name'},$env{'user.domain'},1);
+                                          $env{'user.name'},$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') {
@@ -7765,8 +8501,67 @@ sub graders_resources_pass {
     return;
 }
 
+=pod
+
+=item users_order
+
+  Returns array of resources in current map, ordered based on either CODE,
+  if this is a CODEd exam, or based on student's identity if this is a 
+  "NAMEd" exam.
+
+  Should be used when randomorder and/or randompick applied when the 
+  corresponding exam was printed, prior to students completing bubblesheets 
+  for the version of the exam the student received.
+
+=cut
+
+sub users_order  {
+    my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
+    my @mapresources;
+    unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
+        return @mapresources;
+    }
+    if ($scancode) {
+        if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
+            @mapresources = @{$orderedforcode->{$scancode}};
+        } else {
+            $env{'form.CODE'} = $scancode;
+            my $actual_seq =
+                &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                               $master_seq,
+                                                               $user,$scancode,1);
+            if (ref($actual_seq) eq 'ARRAY') {
+                @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
+                if (ref($orderedforcode) eq 'HASH') {
+                    if (@mapresources > 0) { 
+                        $orderedforcode->{$scancode} = \@mapresources;
+                    }
+                }
+            }
+            delete($env{'form.CODE'});
+        }
+    } else {
+        my $actual_seq =
+            &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                           $master_seq,
+                                                           $user,undef,1);
+        if (ref($actual_seq) eq 'ARRAY') {
+            @mapresources = 
+                map { $symb_to_resource->{$_}; } @{$actual_seq};
+        }
+    }
+    return @mapresources;
+}
+
 sub grade_student_bubbles {
-    my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts) = @_;
+    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}) {
@@ -7779,11 +8574,21 @@ sub grade_student_bubbles {
                         'grade_symb'     => $ressymb,
                         'CODE'           => $scancode
                        );
+            if ($bubbles_per_row ne '') {
+                $form{'bubbles_per_row'} = $bubbles_per_row;
+            }
+            if ($env{'form.scantron_lastbubblepoints'} ne '') {
+                $form{'scantron_lastbubblepoints'} = $env{'form.scantron_lastbubblepoints'};
+            }
             if (ref($parts) eq 'HASH') {
                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
                     foreach my $part (@{$parts->{$ressymb}}) {
-                        $form{'scantron_questnum_start.'.$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++;
                     }
                 }
@@ -7838,7 +8643,7 @@ sub scantron_upload_scantron_data {
 
 '));
     $r->print('
-<h3>'.&mt('Send scanned bubblesheet data to a course').'</h3>
+<h3>'.&mt('Send bubblesheet data to a course').'</h3>
 
 <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 '.$default_form_data.
@@ -8014,7 +8819,7 @@ sub scantron_download_scantron_data {
     if (! &valid_file($file)) {
 	$r->print('
 	<p>
-	    '.&mt('The requested file name was invalid.').'
+	    '.&mt('The requested filename was invalid.').'
         </p>
 ');
 	return;
@@ -8054,6 +8859,7 @@ sub checkscantron_results {
     my %record;
     my %scantron_config =
         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&Apache::grades::username_to_idmap($classlist);
@@ -8063,10 +8869,20 @@ sub checkscantron_results {
         return '';
     }
     my $map=$navmap->getResourceByUrl($sequence);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode);
+    if (ref($map)) { 
+        $randomorder=$map->randomorder();
+        $randompick=$map->randompick();
+    }
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb);
-    &graders_resources_pass(\@resources,\%grader_partids_by_symb,                             \%grader_randomlists_by_symb);
-
+    my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+    if ($nav_error) {
+        $r->print(&navmap_errormsg());
+        return '';
+    }
+    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                            \%grader_randomlists_by_symb,$bubbles_per_row);
     my ($uname,$udom);
     my (%scandata,%lastname,%bylast);
     $r->print('
@@ -8075,20 +8891,16 @@ sub checkscantron_results {
     my @delayqueue;
     my %completedstudents;
 
-    my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
-    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet/Submissions Comparison Status',
-                                    'Progress of Bubblesheet Data/Submission Records Comparison',$count,
-                                    'inline',undef,'checkscantron');
+    my $count=&get_todo_count($scanlines,$scan_data);
+    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
     my ($username,$domain,$started);
-    my $nav_error;
-    &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse.
+    &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
         return '';
     }
 
-    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
-                                          'Processing first student');
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
     my $start=&Time::HiRes::time();
     my $i=-1;
 
@@ -8098,15 +8910,14 @@ sub checkscantron_results {
         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
         if ($line=~/^[\s\cz]*$/) { next; }
         if ($started) {
-            &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
-                                                     'last student');
+            &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
         }
         $started=1;
         my $scan_record=
             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
                                                      $scan_data);
-        unless ($uname=&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;
@@ -8119,26 +8930,57 @@ sub checkscantron_results {
         my $pid = $scan_record->{'scantron.ID'};
         $lastname{$pid} = $scan_record->{'scantron.LastName'};
         push(@{$bylast{$lastname{$pid}}},$pid);
+        my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
+        my $user = $uname.':'.$usec;
+        ($username,$domain)=split(/:/,$uname);
+
+        my $scancode;
+        if ((exists($scan_record->{'scantron.CODE'})) &&
+            (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
+            $scancode = $scan_record->{'scantron.CODE'};
+        } else {
+            $scancode = '';
+        }
+
+        my @mapresources = @resources;
         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+        my %respnumlookup=();
+        my %startline=();
+        if ($randomorder || $randompick) {
+            @mapresources =
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
+            my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
+                                             $scan_record,\@master_seq,\%symb_to_resource,
+                                             \%grader_partids_by_symb,\%orderedforcode,
+                                             \%respnumlookup,\%startline);
+            if ($randompick && $total) {
+                $lastpos = $total*$scantron_config{'Qlength'};
+            }
+        }
         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
         chomp($scandata{$pid});
         $scandata{$pid} =~ s/\r$//;
-        ($username,$domain)=split(/:/,$uname);
+
         my $counter = -1;
-        foreach my $resource (@resources) {
+        foreach my $resource (@mapresources) {
             my $parts;
             my $ressymb = $resource->symb();
             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
                 (my $analysis,$parts) =
-                    &scantron_partids_tograde($resource,$env{'request.course.id'},$username,$domain);
+                    &scantron_partids_tograde($resource,$env{'request.course.id'},
+                                              $username,$domain,undef,
+                                              $bubbles_per_row);
             } else {
                 $parts = $grader_partids_by_symb{$ressymb};
             }
             ($counter,my $recording) =
                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
                                          $scandata{$pid},$parts,
-                                         \%scantron_config,\%lettdig,$numletts);
+                                         \%scantron_config,\%lettdig,$numletts,
+                                         $randomorder,$randompick,
+                                         \%respnumlookup,\%startline);
             $record{$pid} .= $recording;
         }
     }
@@ -8176,8 +9018,21 @@ sub checkscantron_results {
             }
         }
     }
-    $r->print('<p>'.&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for <b>[quant,_1,student]</b>  ([_2] scantron lines/student).',$numstudents,$env{'form.scantron_maxbubble'}).'</p>');
-    $r->print('<p>'.&mt('Exact matches for <b>[quant,_1,student]</b>.',$passed).'<br />'.&mt('Discrepancies detected for <b>[quant,_1,student]</b>.',$failed).'</p>');
+    $r->print(
+        '<p>'
+       .&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for [_1][quant,_2,student][_3] ([quant,_4,bubblesheet line] per student).',
+            '<b>',
+            $numstudents,
+            '</b>',
+            $env{'form.scantron_maxbubble'})
+       .'</p>'
+    );
+    $r->print('<p>'
+             .&mt('Exact matches for [_1][quant,_2,student][_3].','<b>',$passed,'</b>')
+             .'<br />'
+             .&mt('Discrepancies detected for [_1][quant,_2,student][_3].','<b>',$failed,'</b>')
+             .'</p>'
+    );
     if ($passed) {
         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
         $r->print(&Apache::loncommon::start_data_table()."\n".
@@ -8203,7 +9058,8 @@ 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());
@@ -8212,15 +9068,21 @@ 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 ($symb) {
         my %recorded;
@@ -8316,7 +9178,7 @@ sub verify_scantron_grading {
     return ($counter,$record);
 }
 
-sub letter_to_digits { 
+sub letter_to_digits {
     my %lettdig = (
                     A => 1,
                     B => 2,
@@ -8343,7 +9205,7 @@ sub letter_to_digits {
 
 sub href_symb_cmd {
     my ($symb,$cmd)=@_;
-    return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&command='.$cmd;
+    return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
 }
 
 sub grading_menu {
@@ -8431,7 +9293,7 @@ sub grading_menu {
                     		url => $url4,
                     		permission => 'F',
                     		icon => 'bubblesheet.png',
-                    		linktitle => 'Grade scantron exams, upload/download scantron data files, and review previously graded scantron exams.'
+                    		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
                 	    },
                             {   linktext => 'Verify Receipt Number',
                                 url => $url5,
@@ -8606,6 +9468,21 @@ sub init_perm {
     }
 }
 
+sub init_old_essays {
+    my ($symb,$apath,$adom,$aname) = @_;
+    if ($symb ne '') {
+        my %essays = &Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
+        if (keys(%essays) > 0) {
+            $old_essays{$symb} = \%essays;
+        }
+    }
+    return;
+}
+
+sub reset_old_essays {
+    undef(%old_essays);
+}
+
 sub gather_clicker_ids {
     my %clicker_ids;
 
@@ -8703,7 +9580,8 @@ sub process_clicker {
     my $pincorrect=&mt("Percentage points for incorrect solution");
     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
 						   {'iclicker' => 'i>clicker',
-                                                    'interwrite' => 'interwrite PRS'});
+                                                    'interwrite' => 'interwrite PRS',
+                                                    'turning' => 'Turning Technologies'});
     $symb = &Apache::lonenc::check_encrypt($symb);
     $result.= &Apache::lonhtmlcommon::scripttag(<<ENDUPFORM);
 function sanitycheck() {
@@ -8795,7 +9673,7 @@ sub process_clicker_file {
     if ($env{'form.gradingmechanism'} eq 'given') {
         $env{'form.givenanswer'}=~s/^\s*//gs;
         $env{'form.givenanswer'}=~s/\s*$//gs;
-        $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-]+/\,/g;
+        $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
         my @answers=split(/\,/,$env{'form.givenanswer'});
         $foundgiven=$#answers+1;
@@ -8877,6 +9755,9 @@ ENDHEADER
     if ($env{'form.upfiletype'} eq 'interwrite') {
         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
     }
+    if ($env{'form.upfiletype'} eq 'turning') {
+        ($errormsg,$number)=&turning_eval(\@questiontitles,\%responses);
+    }
     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
              '<input type="hidden" name="number" value="'.$number.'" />'.
              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
@@ -8927,7 +9808,7 @@ ENDHEADER
                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
                    "\n".&mt("Domain").": ".
                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
-                   &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id);
+                   &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
           $unknown_count++;
        }
     }
@@ -8935,7 +9816,7 @@ ENDHEADER
              &mt('Found [_1] registered and [_2] unregistered clickers.',$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>';
        }
@@ -8973,6 +9854,7 @@ sub iclicker_eval {
 	    $id=~s/^[\#0]+//;
 	    for (my $i=0;$i<$number;$i++) {
 		my $idx=3+$i*6;
+                $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
 		push(@idresponses,$entries[$idx]);
 	    }
 	    $$responses{$id}=join(',',@idresponses);
@@ -9012,6 +9894,32 @@ sub interwrite_eval {
     return ($errormsg,$number);
 }
 
+sub turning_eval {
+    my ($questiontitles,$responses)=@_;
+    my $number=0;
+    my $errormsg='';
+    foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
+        my %components=&Apache::loncommon::record_sep($line);
+        my @entries=map {$components{$_}} (sort(keys(%components)));
+        if ($#entries>$number) { $number=$#entries; }
+        my $id=$entries[0];
+        my @idresponses;
+        $id=~s/^[\#0]+//;
+        unless ($id) { next; }
+        for (my $idx=1;$idx<=$#entries;$idx++) {
+            $entries[$idx]=~s/\,/\;/g;
+            $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+\;]+//g;
+            push(@idresponses,$entries[$idx]);
+        }
+        $$responses{$id}=join(',',@idresponses);
+    }
+    for (my $i=1; $i<=$number; $i++) {
+        $$questiontitles[$i]=&mt('Question [_1]',$i);
+    }
+    return ($errormsg,$number);
+}
+
+
 sub assign_clicker_grades {
     my ($r,$symb)=@_;
     if (!$symb) {return '';}
@@ -9044,20 +9952,20 @@ sub assign_clicker_grades {
                     $result.='<br /><span class="LC_warning">'.
                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
-                 } elsif ($input[$i]) {
+                 } elsif (($input[$i]) || ($input[$i] eq '0')) {
                     $correct[$i]=$input[$i];
                  }
              }
           }
        }
        for (my $i=0;$i<$number;$i++) {
-          if (!$correct[$i]) {
+          if ((!$correct[$i]) && ($correct[$i] ne '0')) {
              $result.='<br /><span class="LC_error">'.
                       &mt('No correct result given for question "[_1]"!',
                           $env{'form.question:'.$i}).'</span>';
           }
        }
-       $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ($_?$_:'-') } @correct));
+       $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
     }
 # Start grading
     my $pcorrect=$env{'form.pcorrect'};
@@ -9080,7 +9988,7 @@ 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; 
@@ -9090,17 +9998,29 @@ sub assign_clicker_grades {
           for (my $i=0;$i<$number;$i++) {
              if  ($correct[$i] eq '-') {
                 $realnumber--;
-             } elsif ($answer[$i]) {
+             } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/))  {
                 if ($gradingmechanism eq 'attendance') {
                    $sum+=$pcorrect;
                 } elsif ($correct[$i] eq '*') {
                    $sum+=$pcorrect;
                 } else {
-                   if ($answer[$i] eq $correct[$i]) {
-                      $sum+=$pcorrect;
-                   } else {
-                      $sum+=$pincorrect;
+# We actually grade if correct or not
+                   my $increment=$pincorrect;
+# Special case: numerical answer "0"
+                   if ($correct[$i] eq '0') {
+                      if ($answer[$i]=~/^[0\.]+$/) {
+                         $increment=$pcorrect;
+                      }
+# General numerical answer, both evaluate to something non-zero
+                   } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
+                      if (1.0*$correct[$i]==1.0*$answer[$i]) {
+                         $increment=$pcorrect;
+                      }
+# Must be just alphanumeric
+                   } elsif ($answer[$i] eq $correct[$i]) {
+                      $increment=$pcorrect;
                    }
+                   $sum+=$increment;
                 }
              }
           }
@@ -9137,13 +10057,17 @@ sub navmap_errormsg {
 }
 
 sub startpage {
-    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag) = @_;
-    unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
-    $r->print(&Apache::loncommon::start_page('Grading',undef,
-                                          {'bread_crumbs' => $crumbs}));
-    &Apache::lonquickgrades::startGradeScreen($r,'grading');
+    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js) = @_;
+    if ($nomenu) {
+        $r->print(&Apache::loncommon::start_page("Student's Version",$js,{'only_body' => '1'}));
+    } else {
+        unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
+        $r->print(&Apache::loncommon::start_page('Grading',$js,
+                                                 {'bread_crumbs' => $crumbs}));
+        &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
+    }
     unless ($nodisplayflag) {
-       $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag));
+       $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp));
     }
 }
 
@@ -9158,13 +10082,11 @@ sub select_problem {
 sub handler {
     my $request=$_[0];
     &reset_caches();
-    if ($env{'browser.mathml'}) {
-	&Apache::loncommon::content_type($request,'text/xml');
-    } else {
-	&Apache::loncommon::content_type($request,'text/html');
+    if ($request->header_only) {
+        &Apache::loncommon::content_type($request,'text/html');
+        $request->send_http_header;
+        return OK;
     }
-    $request->send_http_header;
-    return '' if $request->header_only;
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 
 # see what command we need to execute
@@ -9172,6 +10094,21 @@ sub handler {
     my @commands=&Apache::loncommon::get_env_multiple('form.command');
     my $command=$commands[0];
 
+    &init_perm();
+    if (!$env{'request.course.id'}) {
+        unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
+                ($command =~ /^scantronupload/)) {
+            # Not in a course.
+            $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
+            return HTTP_NOT_ACCEPTABLE;
+        }
+    } elsif (!%perm) {
+        $request->internal_redirect('/adm/quickgrades');
+        return OK;
+    }
+    &Apache::loncommon::content_type($request,'text/html');
+    $request->send_http_header;
+
     if ($#commands > 0) {
 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
     }
@@ -9183,7 +10120,7 @@ sub handler {
        (my $url=$env{'form.url'}) =~ s-^https*://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
        $symb=&Apache::lonnet::symbread($url);
     }
-    &Apache::lonenc::check_decrypt(\$symb);                             
+    &Apache::lonenc::check_decrypt(\$symb);
 
     $ssi_error = 0;
     if (($symb eq '' || $command eq '') && ($env{'request.course.id'})) {
@@ -9193,10 +10130,30 @@ sub handler {
         &startpage($request,undef,[],1,1);
         &select_problem($request);
     } else {
-	&init_perm();
 	if ($command eq 'submission' && $perm{'vgr'}) {
-            &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}]);
+            my ($stuvcurrent,$stuvdisp,$versionform,$js);
+            if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
+                ($stuvcurrent,$stuvdisp,$versionform,$js) =
+                    &choose_task_version_form($symb,$env{'form.student'},
+                                              $env{'form.userdom'});
+            }
+            &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
+            if ($versionform) {
+                $request->print($versionform);
+            }
+            $request->print('<br clear="all" />');
 	    ($env{'form.student'} eq '' ? &listStudents($request,$symb) : &submission($request,0,0,$symb));
+        } elsif ($command eq 'versionsub' && $perm{'vgr'}) {
+            my ($stuvcurrent,$stuvdisp,$versionform,$js) =
+                &choose_task_version_form($symb,$env{'form.student'},
+                                          $env{'form.userdom'},
+                                          $env{'form.inhibitmenu'});
+            &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,$stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$js);
+            if ($versionform) {
+                $request->print($versionform);
+            }
+            $request->print('<br clear="all" />');
+            $request->print(&show_previous_task_version($request,$symb));
 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                                        {href=>'',text=>'Select student'}],1,1);
@@ -9334,10 +10291,13 @@ sub handler {
     if ($ssi_error) {
 	&ssi_print_error($request);
     }
-    &Apache::lonquickgrades::endGradeScreen($request);
-    $request->print(&Apache::loncommon::end_page());
+    if ($env{'form.inhibitmenu'}) {
+        $request->print(&Apache::loncommon::end_page());
+    } else {
+        &Apache::lonquickgrades::endGradeScreen($request);
+    }
     &reset_caches();
-    return '';
+    return OK;
 }
 
 1;
@@ -9406,6 +10366,75 @@ ssi_with_retries()
 
 =over
 
+=head1 Routines to display previous version of a Task for a specific student
+
+Tasks are graded pass/fail. Students who have yet to pass a particular Task
+can receive another opportunity. Access to tasks is slot-based. If a slot
+requires a proctor to check-in the student, a new version of the Task will
+be created when the student is checked in to the new opportunity.
+
+If a particular student has tried two or more versions of a particular task,
+the submission screen provides a user with vgr privileges (e.g., a Course
+Coordinator) the ability to display a previous version worked on by the
+student.  By default, the current version is displayed. If a previous version
+has been selected for display, submission data are only shown that pertain
+to that particular version, and the interface to submit grades is not shown.
+
+=over 4
+
+=item show_previous_task_version()
+
+Displays a specified version of a student's Task, as the student sees it.
+
+Inputs: 2
+        request - request object
+        symb    - unique symb for current instance of resource
+
+Output: None.
+
+Side Effects: calls &show_problem() to print version of Task, with
+              version contained in form item: $env{'form.previousversion'}
+
+=item choose_task_version_form()
+
+Displays a web form used to select which version of a student's view of a
+Task should be displayed.  Either launches a pop-up window, or replaces
+content in existing pop-up, or replaces page in main window.
+
+Inputs: 4
+        symb    - unique symb for current instance of resource
+        uname   - username of student
+        udom    - domain of student
+        nomenu  - 1 if display is in a pop-up window, and hence no menu
+                  breadcrumbs etc., are displayed
+
+Output: 4
+        current   - student's current version
+        displayed - student's version being displayed
+        result    - scalar containing HTML for web form used to switch to
+                    a different version (or a link to close window, if pop-up).
+        js        - javascript for processing selection in versions web form
+
+Side Effects: None.
+
+=item previous_display_javascript()
+
+Inputs: 2
+        nomenu  - 1 if display is in a pop-up window, and hence no menu
+                  breadcrumbs etc., are displayed.
+        current - student's current version number.
+
+Output: 1
+        js      - javascript for processing selection in versions web form.
+
+Side Effects: None.
+
+=back
+
+=head1 Routines to process bubblesheet data.
+
+=over 4
+
 =item scantron_get_correction() : 
 
    Builds the interface screen to interact with the operator to fix a
@@ -9432,6 +10461,17 @@ 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:
@@ -9441,6 +10481,8 @@ ssi_with_retries()
        calling routine should trap the error condition and display the warning
        found in &navmap_errormsg().
 
+       $scantron_config - Reference to bubblesheet format configuration hash.
+
    Returns the maximum number of bubble lines that are expected to
    occur. Does this by walking the selected sequence rendering the
    resource and then checking &Apache::lonxml::get_problem_counter()
@@ -9450,7 +10492,7 @@ 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.  
@@ -9464,7 +10506,7 @@ ssi_with_retries()
 
 =item  scantron_process_students() : 
 
-   Routine that does the actual grading of the bubble sheet information.
+   Routine that does the actual grading of the bubblesheet information.
 
    The parsed scanline hash is added to %env 
 
@@ -9484,7 +10526,7 @@ ssi_with_retries()
 
 =item  scantron_upload_scantron_data() :
 
-    Creates the screen for adding a new bubble sheet data file to a course.
+    Creates the screen for adding a new bubblesheet data file to a course.
 
 =item  scantron_upload_scantron_data_save() : 
 
@@ -9498,7 +10540,7 @@ ssi_with_retries()
 =item  scantron_download_scantron_data() : 
 
    Shows a list of the three internal files (original, corrected,
-   skipped) for a specific bubble sheet data file that exists in the
+   skipped) for a specific bubblesheet data file that exists in the
    course.
 
 =item  scantron_validate_ID() : 
@@ -9509,7 +10551,9 @@ ssi_with_retries()
 =item navmap_errormsg() :
 
    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
-   Should be called whenever the request to instantiate a navmap object fails.  
+   Should be called whenever the request to instantiate a navmap object fails.
+
+=back
 
 =back