--- loncom/homework/grades.pm	2012/12/18 18:05:48	1.596.2.12.2.12
+++ loncom/homework/grades.pm	2013/12/30 20:47:06	1.596.2.12.2.26
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.596.2.12.2.12 2012/12/18 18:05:48 raeburn Exp $
+# $Id: grades.pm,v 1.596.2.12.2.26 2013/12/30 20:47:06 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -811,7 +811,7 @@ sub verifyreceipt {
 	'<h3><span class="LC_info">'.
 	&mt('Verifying Receipt No. [_1]',$receipt).
 	'</span></h3>'."\n".
-	'<h4>'.&mt('<b>Resource: </b>[_1]',$env{'form.probTitle'}).
+	'<h4>'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).
 	'</h4>'."\n";
 
     my ($string,$contents,$matches) = ('','',0);
@@ -1162,7 +1162,7 @@ LISTJAVASCRIPT
 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
-		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
+		&mt('No '.$submissions.' found for this resource for any students. ([quant,_1,student] checked for '.$submissions.')',
 		    $num_students).
 		'</span><br />';
 	}
@@ -1793,7 +1793,7 @@ sub gradeBox {
     $wgt       = ($wgt > 0 ? $wgt : '1');
     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
-    my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
+    my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
     my $display_part= &get_display_part($partid,$symb);
     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 				       [$partid]);
@@ -1801,7 +1801,7 @@ sub gradeBox {
     if ($last_resets{$partid}) {
         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
     }
-    $result.=&Apache::loncommon::start_data_table_row();
+    my $result=&Apache::loncommon::start_data_table_row();
     my $ctr = 0;
     my $thisweight = 0;
     my $increment = &get_increment();
@@ -1838,8 +1838,8 @@ sub gradeBox {
 
 
     $result .= 
-	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
-    $result.=&Apache::loncommon::end_data_table_row();
+	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
+    $result.=&Apache::loncommon::end_data_table_row().'<td colspan="6">';
     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
@@ -1850,6 +1850,7 @@ 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();
     }
@@ -2043,7 +2044,7 @@ sub submission {
 	    &download_all_link($request, $symb);
 	}
 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
-			'<h4>&nbsp;'.&mt('<b>Resource: </b> [_1]',$env{'form.probTitle'}).'</h4>'."\n");
+			'<h4>&nbsp;'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).'</h4>'."\n");
 
 	# option to display problem, only once else it cause problems 
         # with the form later since the problem has a form.
@@ -2060,7 +2061,7 @@ 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 '' && $env{'form.handgrade'} eq 'yes') {
@@ -2138,7 +2139,7 @@ sub submission {
 &nbsp;<b>$lt{'keyw'}:</b>&nbsp;
 <a href="javascript:keywords(document.SCORE);" target="_self">$lt{'list'}</a>&nbsp; &nbsp;
 <a href="#" onmousedown="javascript:getSel(); return false"
- CLASS="page">$lt{'past'}</a>&nbsp; &nbsp;
+ class="page">$lt{'past'}</a>&nbsp; &nbsp;
 <a href="javascript:kwhighlight();" target="_self">$lt{'high'}</a><br /><br />
 KEYWORDS
 #
@@ -2165,7 +2166,7 @@ KEYWORDS
     if ($perm{'vgr'}) {
         $request->print(
             &Apache::loncommon::track_student_link(
-                &mt('View recent activity'),
+                'View recent activity',
                 $uname,$udom,'check')
            .' '
         );
@@ -2229,7 +2230,7 @@ KEYWORDS
     #                  (for multi-response type part)
     #             (3) Last submission plus the parts info
     #             (4) The whole record for this student
-    if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
+
 	my ($string,$timestamp)= &get_last_submission(\%record);
 	
 	my $lastsubonly;
@@ -2252,13 +2253,14 @@ KEYWORDS
 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 		    if (exists($seenparts{$partid})) { next; }
 		    $seenparts{$partid}=1;
-		    my $submitby='<b>Part:</b> '.$display_part.
-			' <b>Collaborative submission by:</b> '.
-			'<a href="javascript:viewSubmitter(\''.
-			$env{"form.$uname:$udom:$partid:submitted_by"}.
-			'\');" target="_self">'.
-			$$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
-		    $request->print($submitby);
+                    $request->print(
+                        '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
+                        ' <b>'.&mt('Collaborative submission by: [_1]',
+                                   '<a href="javascript:viewSubmitter(\''.
+                                   $env{"form.$uname:$udom:$partid:submitted_by"}.
+                                   '\');" target="_self">'.
+                                   $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
+                        '<br />');
 		    next;
 		}
 		my $responsetype = $responseType->{$partid}->{$respid};
@@ -2283,7 +2285,7 @@ KEYWORDS
                         $trial = $record{"resource.$partid.tries"};
                         $rndseed = $record{"resource.$partid.rndseed"};
                     }
-		    if($env{'form.checkPlag'}){
+		    if ($env{'form.checkPlag'}) {
 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 			    &most_similar($uname,$udom,$symb,$subval);
 			if ($osim) {
@@ -2311,9 +2313,8 @@ KEYWORDS
 		    }
 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
                                          undef,$type,$trial,$rndseed);
-		    if ($env{'form.lastSub'} eq 'lastonly' || 
-			($env{'form.lastSub'} eq 'hdgrade' && 
-			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
+                    if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' &&
+                         $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 			my $display_part=&get_display_part($partid,$symb);
                         $lastsubonly.='<div class="LC_grade_submission_part">'.
                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
@@ -2325,18 +2326,26 @@ KEYWORDS
                             if ($hide eq 'anon') {
                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
                             } else {
-                                $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
+                                $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
+                                            .'<br /><span class="LC_warning">';
+                                if(@$files == 1) {
+                                    $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
+                                } else {
+                                    $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
+                                }
+                                $lastsubonly .= '</span>';
+
                                 foreach my $file (@$files) {
                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
-                                    $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" /> '.$file.'</a>';
+                                    $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
                                 }
                             }
 			    $lastsubonly.='<br />';
 			}
                         if ($hide eq 'anon') {
-                            $lastsubonly.='<b>'.&mt('Anonymous Survey').'</b>'; 
+                            $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
                         } else {
-			    $lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
+			    $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>'.
 			        &cleanRecord($subval,$responsetype,$symb,$partid,
 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
                         }
@@ -2348,10 +2357,11 @@ KEYWORDS
 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 	}
 	$request->print($lastsubonly);
-   } elsif ($env{'form.lastSub'} eq 'datesub') {
+   if ($env{'form.lastSub'} eq 'datesub') {
 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
-    } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
+    }
+    if ($env{'form.lastSub'} =~ /^(last|all)$/) {
 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 								 $env{'request.course.id'},
 								 $last,'.submission',
@@ -2393,9 +2403,9 @@ KEYWORDS
 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 	    ',\''.$msgfor.'\');" target="_self">'.
-	    &mt('Compose message to student').(scalar(@$col_fullnames) >= 1 ? 's' : '').'</a><label> ('.
+	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
-	    '<img src="'.$request->dir_config('lonIconsURL').
+	    ' <img src="'.$request->dir_config('lonIconsURL').
 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 	    '<br />&nbsp;('.
 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
@@ -3206,7 +3216,7 @@ sub handback_files {
                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
                                                  $domain,$stuname,$getpropath);
 		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
-                    # fix file name
+                    # fix filename
                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
@@ -3226,7 +3236,7 @@ sub handback_files {
 			$file_msg.='<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
 
                     }
-                    $request->print('<br />'.&mt('[_1] will be the uploaded file name [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
+                    $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
                 }
             }
         }
@@ -3632,7 +3642,7 @@ sub viewgrades {
     &Apache::lonnet::clear_EXT_cache_status();
 
     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
-    $result.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
+    $result.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 
     #view individual student submission form - called using Javascript viewOneStudent
     $result.=&jscriptNform($symb);
@@ -3695,8 +3705,9 @@ sub viewgrades {
 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
-	$line.= '<td><b>'.&mt('Grade Status').':</b><select name="SELVAL_'.$partid.'"'.
-	    'onchange="javascript:writeRadText(\''.$partid.'\','.
+	$line.= '<td><b>'.&mt('Grade Status').':</b>'.
+                '<select name="SELVAL_'.$partid.'" '.
+	        'onchange="javascript:writeRadText(\''.$partid.'\','.
 		$weight{$partid}.')"> '.
 	    '<option selected="selected"> </option>'.
 	    '<option value="excused">'.&mt('excused').'</option>'.
@@ -3743,8 +3754,8 @@ 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 {
@@ -3868,8 +3879,8 @@ sub editgrades {
     my ($symb)=&get_symb($request);
     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
-    $title.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
-    $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
+    $title.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
+    $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
 
     my $result= &Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
@@ -4254,11 +4265,12 @@ 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
 }
@@ -4402,7 +4414,7 @@ ENDPICK
     }
     # FIXME do a check for any duplicated user ids...
     # FIXME do a check for any invalid user ids?...
-    $request->print('<input type="submit" value="Assign Grades" /><br />
+    $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
 <hr /></form>'."\n");
     $request->print(&show_grading_menu_form($symb));
     return '';
@@ -5218,7 +5230,7 @@ like.
 Next each scanline is checked for any errors of either 'missing
 bubbles' (it's an error because it may have been mis-scanned
 because too light bubbling), 'double bubble' (each bubble line should
-have no more that one letter picked), invalid or duplicated CODE,
+have no more than one letter picked), invalid or duplicated CODE,
 invalid student/employee ID
 
 If the CODE option is used that determines the randomization of the
@@ -5308,6 +5320,11 @@ my %subdivided_bubble_lines;       # no.
 
 my %responsetype_per_response;     # responsetype for each response
 
+my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
+                                   # numbered response. Needed when randomorder
+                                   # or randompick are in use. Key is ID, value 
+                                   # is response number.
+
 # Save and restore the bubble lines array to the form env.
 
 
@@ -5321,12 +5338,17 @@ sub save_bubble_lines {
         $env{"form.scantron.responsetype.$line"} =
             $responsetype_per_response{$line};
     }
+    foreach my $resid (keys(%masterseq_id_responsenum)) {
+        my $line = $masterseq_id_responsenum{$resid};
+        $env{"form.scantron.residpart.$line"} = $resid;
+    }
 }
 
 
 sub restore_bubble_lines {
     my $line = 0;
     %bubble_lines_per_response = ();
+    %masterseq_id_responsenum = ();
     while ($env{"form.scantron.bubblelines.$line"}) {
 	my $value = $env{"form.scantron.bubblelines.$line"};
 	$bubble_lines_per_response{$line} = $value;
@@ -5336,28 +5358,12 @@ 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
@@ -5687,7 +5693,7 @@ 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".
@@ -6021,6 +6027,27 @@ sub digits_to_letters {
                        (see scantron_getfile for more information)
     just_header      - True if should not process question answers but only
                        the stuff to the left of the answers.
+    randomorder      - True if randomorder in use
+    randompick       - True if randompick in use
+    sequence         - Exam folder URL
+    master_seq       - Ref to array containing symbs in exam folder
+    symb_to_resource - Ref to hash of symbs for resources in exam folder
+                       (corresponding values are resource objects)
+    partids_by_symb  - Ref to hash of symb -> array ref of partIDs
+    orderedforcode   - Ref to hash of arrays. keys are CODEs and values
+                       are refs to an array of resource objects, ordered
+                       according to order used for CODE, when randomorder
+                       and or randompick are in use.
+    respnumlookup    - Ref to hash mapping question numbers in bubble lines
+                       for current line to question number used for same question
+                        in "Master Sequence" (as seen by Course Coordinator).
+    startline        - Ref to hash where key is question number (0 is first)
+                       and value is number of first bubble line for current 
+                       student or code-based randompick and/or randomorder.
+    totalref         - Ref of scalar used to score total number of bubble
+                       lines needed for responses in a scan line (used when
+                       randompick in use. 
+
  Returns:
    Hash containing the result of parsing the scanline
 
@@ -6065,12 +6092,12 @@ sub digits_to_letters {
 =cut
 
 sub scantron_parse_scanline {
-    my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
+    my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
+        $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
+        $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
 
     my %record;
-    my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
-    my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
-    my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
+    my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
     if (!($$scantron_config{'CODElocation'} eq 0 ||
 	  $$scantron_config{'CODElocation'} eq 'none')) {
 	if ($$scantron_config{'CODElocation'} < 0 ||
@@ -6106,10 +6133,29 @@ sub scantron_parse_scanline {
     my $questnum=0;
     my $ansnum  =1;		# Multiple 'answer lines'/question.
 
+    my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
+    if ($randompick || $randomorder) {
+        my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
+                                         $master_seq,$symb_to_resource,
+                                         $partids_by_symb,$orderedforcode,
+                                         $respnumlookup,$startline);
+        if ($total) {
+            $lastpos = $total*$$scantron_config{'Qlength'};
+        }
+        if (ref($totalref)) {
+            $$totalref = $total;
+        }
+    }
+    my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
     chomp($questions);		# Get rid of any trailing \n.
     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
     while (length($questions)) {
-	my $answers_needed = $bubble_lines_per_response{$questnum};
+        my $answers_needed;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
+        } else {
+            $answers_needed = $bubble_lines_per_response{$questnum};
+        }
         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
                              || 1;
         $questnum++;
@@ -6118,11 +6164,16 @@ sub scantron_parse_scanline {
         $questions       = substr($questions,$answer_length);
         if (length($currentquest) < $answer_length) { next; }
 
-        if ($subdivided_bubble_lines{$questnum-1} =~ /,/) {
+        my $subdivided;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
+        } else {
+            $subdivided = $subdivided_bubble_lines{$questnum-1};
+        }
+        if ($subdivided =~ /,/) {
             my $subquestnum = 1;
             my $subquestions = $currentquest;
-            my @subanswers_needed = 
-                split(/,/,$subdivided_bubble_lines{$questnum-1});  
+            my @subanswers_needed = split(/,/,$subdivided);
             foreach my $subans (@subanswers_needed) {
                 my $subans_length =
                     ($$scantron_config{'Qlength'} * $subans)  || 1;
@@ -6133,10 +6184,13 @@ sub scantron_parse_scanline {
                     ($$scantron_config{'Qon'} eq 'number')) {
                     $ansnum = &scantron_validator_lettnum($ansnum, 
                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
-                        \@alphabet,\%record,$scantron_config,$scan_data);
+                        \@alphabet,\%record,$scantron_config,$scan_data,
+                        $randomorder,$randompick,$respnumlookup);
                 } else {
                     $ansnum = &scantron_validator_positional($ansnum,
-                        $questnum,$quest_id,$subans,$currsubquest,$whichline,                        \@alphabet,\%record,$scantron_config,$scan_data);
+                        $questnum,$quest_id,$subans,$currsubquest,$whichline,
+                        \@alphabet,\%record,$scantron_config,$scan_data,
+                        $randomorder,$randompick,$respnumlookup);
                 }
                 $subquestnum ++;
             }
@@ -6145,11 +6199,13 @@ sub scantron_parse_scanline {
                 ($$scantron_config{'Qon'} eq 'number')) {
                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
                     $quest_id,$answers_needed,$currentquest,$whichline,
-                    \@alphabet,\%record,$scantron_config,$scan_data);
+                    \@alphabet,\%record,$scantron_config,$scan_data,
+                    $randomorder,$randompick,$respnumlookup);
             } else {
                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
                     $quest_id,$answers_needed,$currentquest,$whichline,
-                    \@alphabet,\%record,$scantron_config,$scan_data);
+                    \@alphabet,\%record,$scantron_config,$scan_data,
+                    $randomorder,$randompick,$respnumlookup);
             }
         }
     }
@@ -6157,9 +6213,66 @@ sub scantron_parse_scanline {
     return \%record;
 }
 
+sub get_master_seq {
+    my ($resources,$master_seq,$symb_to_resource) = @_;
+    return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
+                   (ref($symb_to_resource) eq 'HASH'));
+    my $resource_error;
+    foreach my $resource (@{$resources}) {
+        my $ressymb;
+        if (ref($resource)) {
+            $ressymb = $resource->symb();
+            push(@{$master_seq},$ressymb);
+            $symb_to_resource->{$ressymb} = $resource;
+        } else {
+            $resource_error = 1;
+            last;
+        }
+    }
+    return $resource_error;
+}
+
+sub get_respnum_lookups {
+    my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
+        $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
+    return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
+                   (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
+                   (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
+                   (ref($startline) eq 'HASH'));
+    my ($user,$scancode);
+    if ((exists($record->{'scantron.CODE'})) &&
+        (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
+        $scancode = $record->{'scantron.CODE'};
+    } else {
+        $user = &scantron_find_student($record,$scan_data,$idmap,$line);
+    }
+    my @mapresources =
+        &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
+                     $orderedforcode);
+    my $total = 0;
+    my $count = 0;
+    foreach my $resource (@mapresources) {
+        my $id = $resource->id();
+        my $symb = $resource->symb();
+        if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
+            foreach my $partid (@{$partids_by_symb->{$symb}}) {
+                my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
+                if ($respnum ne '') {
+                    $respnumlookup->{$count} = $respnum;
+                    $startline->{$count} = $total;
+                    $total += $bubble_lines_per_response{$respnum};
+                    $count ++;
+                }
+            }
+        }
+    }
+    return $total;
+}
+
 sub scantron_validator_lettnum {
     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
-        $alphabet,$record,$scantron_config,$scan_data) = @_;
+        $alphabet,$record,$scantron_config,$scan_data,$randomorder,
+        $randompick,$respnumlookup) = @_;
 
     # Qon 'letter' implies for each slot in currquest we have:
     #    ? or * for doubles, a letter in A-Z for a bubble, and
@@ -6178,19 +6291,23 @@ sub scantron_validator_lettnum {
         $matchon = '\d';
     }
     my $occurrences = 0;
-    if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
-        ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
+    my $responsenum = $questnum-1;
+    if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+       $responsenum = $respnumlookup->{$questnum-1}
+    }
+    if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+        ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+        ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
         my @singlelines = split('',$currquest);
         foreach my $entry (@singlelines) {
             $occurrences = &occurence_count($entry,$matchon);
             if ($occurrences > 1) {
                 last;
             }
-        } 
+        }
     } else {
         $occurrences = &occurence_count($currquest,$matchon); 
     }
@@ -6238,7 +6355,8 @@ sub scantron_validator_lettnum {
 
 sub scantron_validator_positional {
     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
-        $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_;
+        $whichline,$alphabet,$record,$scantron_config,$scan_data,
+        $randomorder,$randompick,$respnumlookup) = @_;
 
     # Otherwise there's a positional notation;
     # each bubble line requires Qlength items, and there are filled in
@@ -6280,12 +6398,16 @@ sub scantron_validator_positional {
         #  record all the bubbles filled in as well as the
         #  fact this response consists of multiple bubbles.
         #
-        if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
-            ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
+        my $responsenum = $questnum-1;
+        if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
+            $responsenum = $respnumlookup->{$questnum-1}
+        }
+        if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+            ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
             my $doubleerror = 0;
             while (($currquest >= $$scantron_config{'Qlength'}) && 
                    (!$doubleerror)) {
@@ -6467,7 +6589,11 @@ sub scantron_process_corrections {
 	}
     }
     if ($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);
@@ -6603,7 +6729,7 @@ sub scantron_warning_screen {
     return ('
 <p>
 <span class="LC_warning">
-'.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
+'.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
 </p>
 <table>
 <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
@@ -6692,9 +6818,11 @@ SCANTRONFORM
            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
        $chunk .=
            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
+       $chunk .=
+           '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
        $result .= $chunk;
        $line++;
-   }
+    }
     return $result;
 }
 
@@ -6716,7 +6844,7 @@ sub scantron_validate_file {
     if (!$symb) {return '';}
     my $default_form_data=&defaultFormData($symb);
     
-    # do the detection of only doing skipped records first befroe we delete
+    # do the detection of only doing skipped records first before we delete
     # them when doing the corrections reset
     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 	&reset_skipping_status();
@@ -6767,6 +6895,7 @@ sub scantron_validate_file {
     while (!$stop && $currentphase < scalar(@validate_phases)) {
 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 	$r->rflush();
+
 	my $which="scantron_validate_".$validate_phases[$currentphase];
 	{
 	    no strict 'refs';
@@ -7261,7 +7390,8 @@ sub scantron_validate_ID {
 
 
 sub scantron_get_correction {
-    my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
+    my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
+        $randomorder,$randompick,$respnumlookup,$startline)=@_;
 #FIXME in the case of a duplicated ID the previous line, probably need
 #to show both the current line and the previous one and allow skipping
 #the previous one or the current one
@@ -7311,7 +7441,7 @@ 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>');
@@ -7397,7 +7527,8 @@ ENDSCRIPT
 	# The form field scantron_questions is acutally a list of line numbers.
 	# represented by this form so:
 
-	my $line_list = &questions_to_line_list($arg);
+	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                $respnumlookup,$startline);
 
 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 		  $line_list.'" />');
@@ -7405,7 +7536,9 @@ ENDSCRIPT
 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 	foreach my $question (@{$arg}) {
 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
-                                                   $scan_record, $error);
+                                                   $scan_record, $error,
+                                                   $randomorder,$randompick,
+                                                   $respnumlookup,$startline);
             push(@lines_to_correct,@linenums);
 	}
         $r->print(&verify_bubbles_checked(@lines_to_correct));
@@ -7419,13 +7552,16 @@ ENDSCRIPT
 	# a list of question numbers. Therefore:
 	#
 	
-	my $line_list = &questions_to_line_list($arg);
+	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
+                                                $respnumlookup,$startline);
 
 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 		  $line_list.'" />');
 	foreach my $question (@{$arg}) {
 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
-                                                   $scan_record, $error);
+                                                   $scan_record, $error,
+                                                   $randomorder,$randompick,
+                                                   $respnumlookup,$startline);
             push(@lines_to_correct,@linenums);
 	}
         $r->print(&verify_bubbles_checked(@lines_to_correct));
@@ -7478,12 +7614,20 @@ used to fill in the scantron_questions f
 
   Arguments:
      questions    - Reference to an array of questions.
+     randomorder  - True if randomorder in use.
+     randompick   - True if randompick in use.
+     respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                     for current line to question number used for same question
+                     in "Master Seqence" (as seen by Course Coordinator).
+     startline    - Reference to hash where key is question number (0 is first)
+                    and key is number of first bubble line for current student
+                    or code-based randompick and/or randomorder.
 
 =cut
 
 
 sub questions_to_line_list {
-    my ($questions) = @_;
+    my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
     my @lines;
 
     foreach my $item (@{$questions}) {
@@ -7492,8 +7636,16 @@ sub questions_to_line_list {
         if ($item =~ /^(\d+)\.(\d+)$/) {
             $question = $1;
             my $subquestion = $2;
-            $first = $first_bubble_line{$question-1} + 1;
-            my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
+            my $responsenum = $question-1;
+            if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                $responsenum = $respnumlookup->{$question-1};
+                if (ref($startline) eq 'HASH') {
+                    $first = $startline->{$question-1} + 1;
+                }
+            } else {
+                $first = $first_bubble_line{$responsenum} + 1;
+            }
+            my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
             my $subcount = 1;
             while ($subcount<$subquestion) {
                 $first += $subans[$subcount-1];
@@ -7501,8 +7653,16 @@ sub questions_to_line_list {
             }
             $count = $subans[$subquestion-1];
         } else {
-	    $first   = $first_bubble_line{$question-1} + 1;
-	    $count   = $bubble_lines_per_response{$question-1};
+            my $responsenum = $question-1;
+            if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+                $responsenum = $respnumlookup->{$question-1};
+                if (ref($startline) eq 'HASH') {
+                    $first = $startline->{$question-1} + 1;
+                }
+            } else {
+                $first = $first_bubble_line{$responsenum} + 1;
+            }
+            $count   = $bubble_lines_per_response{$responsenum};
         }
         $last = $first+$count-1;
         push(@lines, ($first..$last));
@@ -7524,6 +7684,14 @@ for multi and missing bubble cases).
    $scan_config - The scantron file configuration hash.
    $scan_record - Reference to the hash that has the the parsed scanlines.
    $error       - Type of error
+   $randomorder - True if randomorder in use.
+   $randompick  - True if randompick in use.
+   $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                    for current line to question number used for same question
+                    in "Master Seqence" (as seen by Course Coordinator).
+   $startline   - Reference to hash where key is question number (0 is first)
+                  and value is number of first bubble line for current student
+                  or code-based randompick and/or randomorder.
 
  Implicit inputs:
    %bubble_lines_per_response   - Starting line numbers for each question.
@@ -7548,15 +7716,26 @@ 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];
@@ -7564,25 +7743,34 @@ sub prompt_for_corrections {
         }
         $lines = $subans[$subquestion-1];
     } else {
-        $current_line = $first_bubble_line{$question-1} + 1 ;
-        $lines        = $bubble_lines_per_response{$question-1};
+        if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
+            $responsenum = $respnumlookup->{$question-1};
+            if (ref($startline) eq 'HASH') {
+                $first = $startline->{$question-1};
+            }
+        } else {
+            $responsenum = $question-1;
+            $first = $first_bubble_line{$responsenum};
+        }
+        $current_line = $first + 1;
+        $lines        = $bubble_lines_per_response{$responsenum};
     }
     if ($lines > 1) {
         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
-        if (($responsetype_per_response{$question-1} eq 'essayresponse') ||
-            ($responsetype_per_response{$question-1} eq 'formularesponse') ||
-            ($responsetype_per_response{$question-1} eq 'stringresponse') ||
-            ($responsetype_per_response{$question-1} eq 'imageresponse') ||
-            ($responsetype_per_response{$question-1} eq 'reactionresponse') ||
-            ($responsetype_per_response{$question-1} eq 'organicresponse')) {
-            $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
+        if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
+            ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
+            ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
+            $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
         } else {
             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
         }
     }
     for (my $i =0; $i < $lines; $i++) {
         my $selected = $$scan_record{"scantron.$current_line.answer"};
-	&scantron_bubble_selector($r,$scan_config,$current_line, 
+	&scantron_bubble_selector($r,$scan_config,$current_line,
 	        		  $questionnum,$error,split('', $selected));
         push(@linenums,$current_line);
 	$current_line++;
@@ -7836,11 +8024,42 @@ sub scantron_validate_doublebubble {
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my (undef,undef,$sequence)=
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
 
     #get scantron line setup
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
     my ($scanlines,$scan_data)=&scantron_getfile();
+
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    unless (ref($navmap)) {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+    my $map=$navmap->getResourceByUrl($sequence);
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+
     my $nav_error;
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+        if ($randomorder || $randompick) {
+            $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+            if ($nav_error) {
+                $r->print(&navmap_errormsg());
+                return(1,$currentphase);
+            }
+            &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                    \%grader_randomlists_by_symb,$bubbles_per_row);
+        }
+    } else {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -7851,11 +8070,15 @@ sub scantron_validate_doublebubble {
 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 	if ($line=~/^[\s\cz]*$/) { next; }
 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
-						 $scan_data);
+						 $scan_data,undef,\%idmap,$randomorder,
+                                                 $randompick,$sequence,\@master_seq,
+                                                 \%symb_to_resource,\%grader_partids_by_symb,
+                                                 \%orderedforcode,\%respnumlookup,\%startline);
 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 				 'doublebubble',
-				 $$scan_record{'scantron.doubleerror'});
+				 $$scan_record{'scantron.doubleerror'},
+                                 $randomorder,$randompick,\%respnumlookup,\%startline);
     	return (1,$currentphase);
     }
     return (0,$currentphase+1);
@@ -7894,12 +8117,14 @@ sub scantron_get_maxbubble {
     %first_bubble_line         = ();
     %subdivided_bubble_lines   = ();
     %responsetype_per_response = ();
+    %masterseq_id_responsenum  = ();
 
     my $response_number = 0;
     my $bubble_line     = 0;
     foreach my $resource (@resources) {
+        my $resid = $resource->id();
         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
-                                                          $udom,$bubbles_per_row);
+                                                          $udom,undef,$bubbles_per_row);
         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 	    foreach my $part_id (@{$parts}) {
                 my $lines;
@@ -7948,6 +8173,7 @@ sub scantron_get_maxbubble {
 	        $bubble_lines_per_response{$response_number} = $lines;
                 $responsetype_per_response{$response_number} = 
                     $analysis->{$part_id.'.type'};
+                $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;
 	        $response_number++;
 
 	        $bubble_line +=  $lines;
@@ -7980,21 +8206,59 @@ sub scantron_validate_missingbubbles {
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my (undef,undef,$sequence)=
+        &Apache::lonnet::decode_symb($env{'form.selectpage'});
 
     #get scantron line setup
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
     my ($scanlines,$scan_data)=&scantron_getfile();
+
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    unless (ref($navmap)) {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
+    my $map=$navmap->getResourceByUrl($sequence);
+    my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
+
     my $nav_error;
+    if (ref($map)) {
+        $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+        if ($randomorder || $randompick) {
+            $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+            if ($nav_error) {
+                $r->print(&navmap_errormsg());
+                return(1,$currentphase);
+            }
+            &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                                    \%grader_randomlists_by_symb,$bubbles_per_row);
+        }
+    } else {
+        $r->print(&navmap_errormsg());
+        return(1,$currentphase);
+    }
+
+
     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
     if ($nav_error) {
+        $r->print(&navmap_errormsg());
         return(1,$currentphase);
     }
+
     if (!$max_bubble) { $max_bubble=2**31; }
     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 	if ($line=~/^[\s\cz]*$/) { next; }
-	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
-						 $scan_data);
+        my $scan_record =
+            &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
+                                     $randomorder,$randompick,$sequence,\@master_seq,
+                                     \%symb_to_resource,\%grader_partids_by_symb,
+                                     \%orderedforcode,\%respnumlookup,\%startline);
 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 	my @to_correct;
 	
@@ -8003,28 +8267,45 @@ sub scantron_validate_missingbubbles {
 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
             my $lastbubble;
             if ($missing =~ /^(\d+)\.(\d+)$/) {
-               my $question = $1;
-               my $subquestion = $2;
-               if (!defined($first_bubble_line{$question -1})) { next; }
-               my $first = $first_bubble_line{$question-1};
-               my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
-               my $subcount = 1;
-               while ($subcount<$subquestion) {
-                   $first += $subans[$subcount-1];
-                   $subcount ++;
-               }
-               my $count = $subans[$subquestion-1];
-               $lastbubble = $first + $count;
+                my $question = $1;
+                my $subquestion = $2;
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$question-1};
+                    $first = $startline{$question-1};
+                } else {
+                    $responsenum = $question-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+                my $subcount = 1;
+                while ($subcount<$subquestion) {
+                    $first += $subans[$subcount-1];
+                    $subcount ++;
+                }
+                my $count = $subans[$subquestion-1];
+                $lastbubble = $first + $count;
             } else {
-                if (!defined($first_bubble_line{$missing - 1})) { next; }
-                $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1};
+                my ($first,$responsenum);
+                if ($randomorder || $randompick) {
+                    $responsenum = $respnumlookup{$missing-1};
+                    $first = $startline{$missing-1};
+                } else {
+                    $responsenum = $missing-1;
+                    $first = $first_bubble_line{$responsenum};
+                }
+                if (!defined($first)) { next; }
+                $lastbubble = $first + $bubble_lines_per_response{$responsenum};
             }
             if ($lastbubble > $max_bubble) { next; }
 	    push(@to_correct,$missing);
 	}
 	if (@to_correct) {
 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
-				     $line,'missingbubble',\@to_correct);
+				     $line,'missingbubble',\@to_correct,
+                                     $randomorder,$randompick,\%respnumlookup,
+                                     \%startline);
 	    return (1,$currentphase);
 	}
 
@@ -8079,8 +8360,7 @@ sub scantron_process_students {
     my $default_form_data=&defaultFormData($symb);
 
     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
-    my $bubbles_per_row =
-        &bubblesheet_bubbles_per_row(\%scantron_config);
+    my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
     my ($scanlines,$scan_data)=&scantron_getfile();
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
@@ -8088,43 +8368,28 @@ sub scantron_process_students {
     unless (ref($navmap)) {
         $r->print(&navmap_errormsg());
         return '';
-    }  
+    }
     my $map=$navmap->getResourceByUrl($sequence);
-    my $randomorder;
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb);
     if (ref($map)) {
         $randomorder = $map->randomorder();
+        $randompick = $map->randompick();
+    } else {
+        $r->print(&navmap_errormsg());
+        return '';
     }
+    my $nav_error;
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb,%ordered);
-    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
-                            \%grader_randomlists_by_symb,$bubbles_per_row);
-    my ($resource_error,%symb_to_resource,@master_seq);
-    foreach my $resource (@resources) {
-        my $ressymb;
-        if (ref($resource)) {
-            $ressymb = $resource->symb();
-            push(@master_seq,$ressymb);
-            $symb_to_resource{$ressymb} = $resource;
-        } else {
-            $resource_error = 1;
-            last;
-        }
-        my ($analysis,$parts) =
-            &scantron_partids_tograde($resource,$env{'request.course.id'},
-                                      $env{'user.name'},$env{'user.domain'},
-                                      1,$bubbles_per_row);
-        $grader_partids_by_symb{$ressymb} = $parts;
-        if (ref($analysis) eq 'HASH') {
-            if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
-                $grader_randomlists_by_symb{$ressymb} = 
-                    $analysis->{'parts_withrandomlist'};
-            }
+    if ($randomorder || $randompick) {
+        $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+        if ($nav_error) {
+            $r->print(&navmap_errormsg());
+            return '';
         }
     }
-    if ($resource_error) {
-        $r->print(&navmap_errormsg());
-        return '';
-    }
+    &graders_resources_pass(\@resources,\%grader_partids_by_symb,
+                            \%grader_randomlists_by_symb,$bubbles_per_row);
 
     my ($uname,$udom);
     my $result= <<SCANTRONFORM;
@@ -8147,7 +8412,6 @@ SCANTRONFORM
     my $i=-1;
     my $started;
 
-    my $nav_error;
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -8167,6 +8431,7 @@ SCANTRONFORM
 
     my %lettdig = &letter_to_digits();
     my $numletts = scalar(keys(%lettdig));
+    my %orderedforcode;
 
     while ($i<$scanlines->{'count'}) {
  	($uname,$udom)=('','');
@@ -8178,8 +8443,15 @@ SCANTRONFORM
 						     'last student');
 	}
 	$started=1;
+        my %respnumlookup = ();
+        my %startline = ();
+        my $total;
  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
- 						 $scan_data);
+ 						 $scan_data,undef,\%idmap,$randomorder,
+                                                 $randompick,$sequence,\@master_seq,
+                                                 \%symb_to_resource,\%grader_partids_by_symb,
+                                                 \%orderedforcode,\%respnumlookup,\%startline,
+                                                 \$total);
  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
  					      \%idmap,$i)) {
   	    &scantron_add_delay(\@delayqueue,$line,
@@ -8204,10 +8476,10 @@ SCANTRONFORM
         }
 
         my @mapresources = @resources;
-        if ($randomorder) {
+        if ($randomorder || $randompick) {
             @mapresources =
-                &users_order($user,$scancode,$sequence,\@master_seq,\%ordered,
-                             \%symb_to_resource);
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
         }
         my (%partids_by_symb,$res_error);
         foreach my $resource (@mapresources) {
@@ -8244,7 +8516,9 @@ SCANTRONFORM
 	
         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
                                    \@mapresources,\%partids_by_symb,
-                                   $bubbles_per_row) eq 'ssi_error') {
+                                   $bubbles_per_row,$randomorder,$randompick,
+                                   \%respnumlookup,\%startline) 
+            eq 'ssi_error') {
             $ssi_error = 0; # So end of handler error message does not trigger.
             $r->print("</form>");
             &ssi_print_error($r);
@@ -8253,9 +8527,22 @@ SCANTRONFORM
             return '';      # Why return ''?  Beats me.
         }
 
+        if (($scancode) && ($randomorder || $randompick)) {
+            my $parmresult =
+                &Apache::lonparmset::storeparm_by_symb($symb,
+                                                       '0_examcode',2,$scancode,
+                                                       'string_examcode',$uname,
+                                                       $udom);
+        }
 	$completedstudents{$uname}={'line'=>$line};
         if ($env{'form.verifyrecord'}) {
             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+            if ($randompick) {
+                if ($total) {
+                    $lastpos = $total*$scantron_config{'Qlength'};
+                }
+            }
+
             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
             chomp($studentdata);
             $studentdata =~ s/\r$//;
@@ -8266,14 +8553,17 @@ SCANTRONFORM
                 ($counter,my $recording) =
                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                              $counter,$studentdata,$partids_by_symb{$ressymb},
-                                             \%scantron_config,\%lettdig,$numletts);
+                                             \%scantron_config,\%lettdig,$numletts,$randomorder,
+                                             $randompick,\%respnumlookup,\%startline);
                 $studentrecord .= $recording;
             }
             if ($studentrecord ne $studentdata) {
                 &Apache::lonxml::clear_problem_counter();
                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
                                            \@mapresources,\%partids_by_symb,
-                                           $bubbles_per_row) eq 'ssi_error') {
+                                           $bubbles_per_row,$randomorder,$randompick,
+                                           \%respnumlookup,\%startline)
+                    eq 'ssi_error') {
                     $ssi_error = 0; # So end of handler error message does not trigger.
                     $r->print("</form>");
                     &ssi_print_error($r);
@@ -8289,7 +8579,9 @@ SCANTRONFORM
                     ($counter,my $recording) =
                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
-                                                 \%scantron_config,\%lettdig,$numletts);
+                                                 \%scantron_config,\%lettdig,$numletts,
+                                                 $randomorder,$randompick,\%respnumlookup,
+                                                 \%startline);
                     $studentrecord .= $recording;
                 }
                 if ($studentrecord ne $studentdata) {
@@ -8307,11 +8599,11 @@ SCANTRONFORM
                               &Apache::loncommon::end_data_table_header_row()."\n".
                               &Apache::loncommon::start_data_table_row().
                               '<td>'.&mt('Bubblesheet').'</td>'.
-                              '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::start_data_table_row().
                               '<td>'.&mt('Stored submissions').'</td>'.
-                              '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
+                              '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
                               &Apache::loncommon::end_data_table_row().
                               &Apache::loncommon::end_data_table().'</p>');
                 } else {
@@ -8368,47 +8660,59 @@ sub graders_resources_pass {
   if this is a CODEd exam, or based on student's identity if this is a
   "NAMEd" exam.
 
-  Should be used when randomorder applied when the corresponding exam was
-  printed, prior to students completing bubblesheets for the version of the
-  exam the student received.
+  Should be used when randomorder and/or randompick applied when the 
+  corresponding exam was printed, prior to students completing bubblesheets 
+  for the version of the exam the student received.
 
 =cut
 
 sub users_order  {
-    my ($user,$scancode,$mapurl,$master_seq,$ordered,$symb_to_resource) = @_;
+    my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
     my @mapresources;
-    unless ((ref($ordered) eq 'HASH') && (ref($symb_to_resource) eq 'HASH')) {
+    unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
         return @mapresources;
     }
-    if (($scancode) && (ref($ordered->{$scancode}) eq 'ARRAY')) {
-        @mapresources = @{$ordered->{$scancode}};
-    } elsif ($scancode) {
-        $env{'form.CODE'} = $scancode;
-        my $actual_seq =
-            &Apache::lonprintout::master_seq_to_person_seq($mapurl,
-                                                           $master_seq,
-                                                           $user,$scancode);
-        if (ref($actual_seq) eq 'ARRAY') {
-            @{$ordered->{$scancode}} =
-                map { $symb_to_resource->{$_}; } @{$actual_seq};
-            @mapresources = @{$ordered->{$scancode}};
+    if ($scancode) {
+        if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
+            @mapresources = @{$orderedforcode->{$scancode}};
+        } else {
+            $env{'form.CODE'} = $scancode;
+            my $actual_seq =
+                &Apache::lonprintout::master_seq_to_person_seq($mapurl,
+                                                               $master_seq,
+                                                               $user,$scancode,1);
+            if (ref($actual_seq) eq 'ARRAY') {
+                @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
+                if (ref($orderedforcode) eq 'HASH') {
+                    if (@mapresources > 0) {
+                        $orderedforcode->{$scancode} = \@mapresources;
+                    }
+                }
+            }
+            delete($env{'form.CODE'});
         }
-        delete($env{'form.CODE'});
     } else {
         my $actual_seq =
             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
                                                            $master_seq,
-                                                           $user);
+                                                           $user,undef,1);
         if (ref($actual_seq) eq 'ARRAY') {
             @mapresources =
                 map { $symb_to_resource->{$_}; } @{$actual_seq};
         }
-     }
-     return @mapresources;
+    }
+    return @mapresources;
 }
 
 sub grade_student_bubbles {
-    my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row) = @_;
+    my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
+        $randomorder,$randompick,$respnumlookup,$startline) = @_;
+    my $uselookup = 0;
+    if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
+        (ref($startline) eq 'HASH')) {
+        $uselookup = 1;
+    }
+
     if (ref($resources) eq 'ARRAY') {
         my $count = 0;
         foreach my $resource (@{$resources}) {
@@ -8430,8 +8734,12 @@ sub grade_student_bubbles {
             if (ref($parts) eq 'HASH') {
                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
                     foreach my $part (@{$parts->{$ressymb}}) {
-                        $form{'scantron_questnum_start.'.$part} =
-                            1+$env{'form.scantron.first_bubble_line.'.$count};
+                        if ($uselookup) {
+                            $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
+                        } else {
+                            $form{'scantron_questnum_start.'.$part} =
+                                1+$env{'form.scantron.first_bubble_line.'.$count};
+                        }
                         $count++;
                     }
                 }
@@ -8536,23 +8844,30 @@ sub scantron_upload_scantron_data_save {
     }
     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
     my $uploadedfile;
-    $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
+    $r->print('<p>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</p>');
     if (length($env{'form.upfile'}) < 2) {
-        $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','<span class="LC_error">','</span>','<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
+        $r->print(
+            &Apache::lonhtmlcommon::confirm_success(
+                &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                        '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1));
     } else {
         my $result = 
             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
                                             $env{'form.courseid'},$env{'form.domainid'});
 	if ($result =~ m{^/uploaded/}) {
-	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
-                          '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
-			  '<span class="LC_filename">'.$result.'</span>'));
+            $r->print(
+                &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
+                &mt('Uploaded [_1] bytes of data into location: [_2]',
+                        (length($env{'form.upfile'})-1),
+                        '<span class="LC_filename">'.$result.'</span>'));
             ($uploadedfile) = ($result =~ m{/([^/]+)$});
             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
                                                        $env{'form.courseid'},$uploadedfile));
 	} else {
-	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
-                          '<span class="LC_error">','</span>',$result,
+            $r->print(
+                &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
+                    &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
+                          $result,
 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 	}
     }
@@ -8574,7 +8889,7 @@ sub validate_uploaded_scantron_file {
     my $output;
     if (@lines) {
         my (%counts,$max_match_format);
-        my ($max_match_count,$max_match_pct) = (0,0);
+        my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
         my %idmap = &username_to_idmap($classlist);
         foreach my $key (keys(%idmap)) {
@@ -8617,6 +8932,7 @@ sub validate_uploaded_scantron_file {
                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
                     $max_match_pct = $percent_match;
                     $max_match_format = $key;
+                    $found_match_count = $counts{$key}{'found'};
                     $max_match_count = $counts{$key}{'total'};
                 }
             }
@@ -8635,17 +8951,40 @@ sub validate_uploaded_scantron_file {
                 }
             }
             my $showpct = sprintf("%.0f",$max_match_pct).'%';
-            $output .= '<br />'.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).','<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
-                       '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
-                       '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
-                       '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
-                                  '<i>'.$cdom.'</i>').'</li>'.
-                       '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
-                       '<li>'.&mt('The course roster is not up to date').'</li>'.
-                       '</ul>';
+            $output .= '<br />';
+            if ($found_match_count == $max_match_count) {
+                # 100% matching entries
+                $output .= &Apache::lonhtmlcommon::confirm_success(
+                     &mt('Comparison of student IDs: [_1] matching ([quant,_2,entry,entries])',
+                            '<b>'.$showpct.'</b>',$found_match_count)).'<br />'.
+                &mt('Comparison of student IDs in the uploaded file with'.
+                    ' the course roster found matches for [_1] of the [_2] entries'.
+                    ' in the file (for the format defined for [_3]).',
+                        '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs);
+            } else {
+                # Not all entries matching? -> Show warning and additional info
+                $output .=
+                    &Apache::lonhtmlcommon::confirm_success(
+                        &mt('Comparison of student IDs: [_1] matching ([_2]/[quant,_3,entry,entries])',
+                                '<b>'.$showpct.'</b>',$found_match_count,$max_match_count).'<br />'.
+                        &mt('Not all entries could be matched!'),1).'<br />'.
+                    &mt('Comparison of student IDs in the uploaded file with'.
+                        ' the course roster found matches for [_1] of the [_2] entries'.
+                        ' in the file (for the format defined for [_3]).',
+                            '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
+                    '<p class="LC_info">'.
+                    &mt('A low percentage of matches results from one of the following:').
+                    '</p><ul>'.
+                    '<li>'.&mt('The file was uploaded to the wrong course.').'</li>'.
+                    '<li>'.&mt('The data is not in the format expected for the domain: [_1]',
+                               '<i>'.$cdom.'</i>').'</li>'.
+                    '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
+                    '<li>'.&mt('The course roster is not up to date.').'</li>'.
+                    '</ul>';
+            }
         }
     } else {
-        $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
+        $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
     }
     return $output;
 }
@@ -8668,7 +9007,7 @@ sub scantron_download_scantron_data {
     if (! &valid_file($file)) {
 	$r->print('
 	<p>
-	    '.&mt('The requested file name was invalid.').'
+	    '.&mt('The requested filename was invalid.').'
         </p>
 ');
 	$r->print(&show_grading_menu_form($symb));
@@ -8722,19 +9061,18 @@ sub checkscantron_results {
         return '';
     }
     my $map=$navmap->getResourceByUrl($sequence);
-    my ($randomorder,@master_seq,%symb_to_resource);
+    my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
+        %grader_randomlists_by_symb,%orderedforcode);
     if (ref($map)) {
         $randomorder=$map->randomorder();
+        $randompick=$map->randompick();
     }
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
-    foreach my $resource (@resources) {
-        if (ref($resource)) {
-            my $ressymb = $resource->symb();
-            push(@master_seq,$ressymb);
-            $symb_to_resource{$ressymb} = $resource;
-        }
+    my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+    if ($nav_error) {
+        $r->print(&navmap_errormsg());
+        return '';
     }
-    my (%grader_partids_by_symb,%grader_randomlists_by_symb);
     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
                             \%grader_randomlists_by_symb,$bubbles_per_row);
     my ($uname,$udom);
@@ -8745,10 +9083,9 @@ sub checkscantron_results {
     my @delayqueue;
     my %completedstudents;
 
-    my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
+    my $count=&get_todo_count($scanlines,$scan_data);
     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
-    my ($username,$domain,$started,%ordered);
-    my $nav_error;
+    my ($username,$domain,$started);
     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
     if ($nav_error) {
         $r->print(&navmap_errormsg());
@@ -8773,8 +9110,8 @@ sub checkscantron_results {
         my $scan_record=
             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
                                                      $scan_data);
-        unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data,
-                                                              \%idmap,$i)) {
+        unless ($uname=&scantron_find_student($scan_record,$scan_data,
+                                              \%idmap,$i)) {
             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
                                 'Unable to find a student that matches',1);
             next;
@@ -8787,10 +9124,6 @@ sub checkscantron_results {
         my $pid = $scan_record->{'scantron.ID'};
         $lastname{$pid} = $scan_record->{'scantron.LastName'};
         push(@{$bylast{$lastname{$pid}}},$pid);
-        my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
-        $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
-        chomp($scandata{$pid});
-        $scandata{$pid} =~ s/\r$//;
         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
         my $user = $uname.':'.$usec;
         ($username,$domain)=split(/:/,$uname);
@@ -8804,11 +9137,25 @@ sub checkscantron_results {
         }
 
         my @mapresources = @resources;
-        if ($randomorder) {
+        my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
+        my %respnumlookup=();
+        my %startline=();
+        if ($randomorder || $randompick) {
             @mapresources =
-                &users_order($user,$scancode,$sequence,\@master_seq,\%ordered,
-                             \%symb_to_resource);
+                &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
+                             \%orderedforcode);
+            my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
+                                             $scan_record,\@master_seq,\%symb_to_resource,
+                                             \%grader_partids_by_symb,\%orderedforcode,
+                                             \%respnumlookup,\%startline);
+            if ($randompick && $total) {
+                $lastpos = $total*$scantron_config{'Qlength'};
+            }
         }
+        $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
+        chomp($scandata{$pid});
+        $scandata{$pid} =~ s/\r$//;
+
         my $counter = -1;
         foreach my $resource (@mapresources) {
             my $parts;
@@ -8825,7 +9172,9 @@ sub checkscantron_results {
             ($counter,my $recording) =
                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
                                          $scandata{$pid},$parts,
-                                         \%scantron_config,\%lettdig,$numletts);
+                                         \%scantron_config,\%lettdig,$numletts,
+                                         $randomorder,$randompick,
+                                         \%respnumlookup,\%startline);
             $record{$pid} .= $recording;
         }
     }
@@ -8901,7 +9250,8 @@ sub checkscantron_results {
 
 sub verify_scantron_grading {
     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
-        $scantron_config,$lettdig,$numletts) = @_;
+        $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
+        $respnumlookup,$startline) = @_;
     my ($record,%expected,%startpos);
     return ($counter,$record) if (!ref($resource));
     return ($counter,$record) if (!$resource->is_problem());
@@ -8910,15 +9260,21 @@ sub verify_scantron_grading {
     foreach my $part_id (@{$partids}) {
         $counter ++;
         $expected{$part_id} = 0;
-        if ($env{"form.scantron.sub_bubblelines.$counter"}) {
-            my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"});
+        my $respnum = $counter;
+        if ($randomorder || $randompick) {
+            $respnum = $respnumlookup->{$counter};
+            $startpos{$part_id} = $startline->{$counter} + 1;
+        } else {
+            $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
+        }
+        if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
+            my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
             foreach my $item (@sub_lines) {
                 $expected{$part_id} += $item;
             }
         } else {
-            $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"};
+            $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
         }
-        $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
     }
     if ($symb) {
         my %recorded;
@@ -9014,7 +9370,7 @@ sub verify_scantron_grading {
     return ($counter,$record);
 }
 
-sub letter_to_digits { 
+sub letter_to_digits {
     my %lettdig = (
                     A => 1,
                     B => 2,
@@ -9621,16 +9977,18 @@ sub process_clicker_file {
 	    $number++;
 	}
         $result.="</p>\n";
-	if ($number==0) {
-	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
-	    return $result.&show_grading_menu_form($symb);
-	}
+        if ($number==0) {
+            $result .=
+                 &Apache::lonhtmlcommon::confirm_success(
+                     &mt('No IDs found to determine correct answer'),1);
+            return $result,.&show_grading_menu_form($symb);
+        }
     }
     if (length($env{'form.upfile'}) < 2) {
-        $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
-		     '<span class="LC_error">',
-		     '</span>',
-		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
+        $result .=
+            &Apache::lonhtmlcommon::confirm_success(
+                &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
+                        '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1);
         return $result.&show_grading_menu_form($symb);
     }
 
@@ -9722,7 +10080,7 @@ ENDHEADER
              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
        if ($correct_count==0) {
-          $errormsg.="Found no correct answers answers for grading!";
+          $errormsg.="Found no correct answers for grading!";
        } elsif ($correct_count>1) {
           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
        }
@@ -9897,7 +10255,7 @@ 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;
@@ -10032,6 +10390,7 @@ sub handler {
             &init_perm(); 
             if (!%perm) {
                 $request->internal_redirect('/adm/quickgrades');
+                return OK;
             } else {
                 &Apache::loncommon::content_type($request,'text/html');
                 $request->send_http_header;
@@ -10249,6 +10608,16 @@ ssi_with_retries()
          - missingbubble - array ref of the bubble lines that have missing
                            bubble errors
 
+   $randomorder - True if exam folder has randomorder set
+   $randompick  - True if exam folder has randompick set
+   $respnumlookup - Reference to HASH mapping question numbers in bubble lines
+                     for current line to question number used for same question
+                     in "Master Seqence" (as seen by Course Coordinator).
+   $startline   - Reference to hash where key is question number (0 is first)
+                  and value is number of first bubble line for current student
+                  or code-based randompick and/or randomorder.
+
+
 =item  scantron_get_maxbubble() : 
 
    Arguments:
@@ -10269,7 +10638,7 @@ 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.