--- loncom/homework/grades.pm	2020/09/08 14:09:30	1.596.2.12.2.52
+++ loncom/homework/grades.pm	2021/01/05 21:25:47	1.780
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.596.2.12.2.52 2020/09/08 14:09:30 raeburn Exp $
+# $Id: grades.pm,v 1.780 2021/01/05 21:25:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -44,11 +44,12 @@ use Apache::Constants qw(:common :http);
 use Apache::lonlocal;
 use Apache::lonenc;
 use Apache::lonstathelpers;
+use Apache::lonquickgrades;
 use Apache::bridgetask();
 use Apache::lontexconvert();
+use String::Similarity;
 use HTML::Parser();
 use File::MMagic;
-use String::Similarity;
 use LONCAPA;
 
 use POSIX qw(floor);
@@ -118,7 +119,11 @@ sub getpartlist {
     my $res      = $navmap->getBySymb($symb);
     my $partlist = $res->parts();
     my $url      = $res->src();
-    my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
+    my $toolsymb;
+    if ($url =~ /ext\.tool$/) {
+        $toolsymb = $symb;
+    }
+    my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys',$toolsymb));
 
     my @stores;
     foreach my $part (@{ $partlist }) {
@@ -142,7 +147,6 @@ sub nameUserString {
 }
 
 #--- Get the partlist and the response type for a given problem. ---
-#--- Indicate if a response type is coded handgraded or not. ---
 #--- Count responseIDs, essayresponse items, and dropbox items ---
 #--- Sets response_error pointer to "1" if navmaps object broken ---
 sub response_type {
@@ -299,7 +303,7 @@ sub showResourceInfo {
         } else {
             return '<br clear="all" />';
         }
-    }  
+    }
     return $result;
 }
 
@@ -586,7 +590,7 @@ sub cleanRecord {
 	    return $result;
 	}
     } elsif ( $response =~ m/(?:numerical|formula|custom)/) {
-        # Respect multiple input fields, see Bug #5409 
+        # Respect multiple input fields, see Bug #5409
 	$answer = 
 	    &Apache::loncommon::format_previous_attempt_value('submission',
 							      $answer);
@@ -1037,6 +1041,7 @@ sub verifyreceipt {
 sub listStudents {
     my ($request,$symb,$submitonly,$divforres) = @_;
 
+    my $is_tool   = ($symb =~ /ext\.tool$/);
     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
@@ -1103,26 +1108,38 @@ LISTJAVASCRIPT
 	"\n".$table;
 
     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
-    $gradeTable .= &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('one student').' </label>'."\n"
-                  .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
-                  .&Apache::lonhtmlcommon::row_closure();
-    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
-                  .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
-                  .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
-                  .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
-                  .&Apache::lonhtmlcommon::row_closure();
+    unless ($is_tool) {
+        $gradeTable .= &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('one student').' </label>'."\n"
+                      .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
+                      .&Apache::lonhtmlcommon::row_closure();
+        $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
+                      .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
+                      .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
+                      .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
+                      .&Apache::lonhtmlcommon::row_closure();
+    }
 
     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
     $env{'form.Status'} = $saveStatus;
-    my %optiontext = &Apache::lonlocal::texthash (
+    my %optiontext;
+    if ($is_tool) {
+        %optiontext = &Apache::lonlocal::texthash (
+                          lastonly => 'last transaction',
+                          last     => 'last transaction with details',
+                          datesub  => 'all transactions',
+                          all      => 'all transactions with details',
+                      );
+    } else {
+        %optiontext = &Apache::lonlocal::texthash (
                           lastonly => 'last submission',
                           last     => 'last submission with details',
                           datesub  => 'all submissions',
                           all      => 'all submissions with details',
                       );
+    }
     my $submission_options =
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
@@ -1136,15 +1153,44 @@ LISTJAVASCRIPT
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="all" /> '.
         $optiontext{'all'}.'</label></span>';
+    my $viewtitle;
+    if ($is_tool) {
+        $viewtitle = &mt('View Transactions');
+    } else {
+        $viewtitle = &mt('View Submissions');
+    }
     my ($compmsg,$nocompmsg);
     $nocompmsg = ' checked="checked"';
     if ($numessay) {
         $compmsg = $nocompmsg;
         $nocompmsg = '';
     }
-    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
-                  .$submission_options
-                  .&Apache::lonhtmlcommon::row_closure()
+    $gradeTable .= &Apache::lonhtmlcommon::row_title($viewtitle)
+                  .$submission_options;
+# Check if any gradable
+    my $showmore;
+    if ($perm{'mgr'}) {
+        my @sections;
+        if ($env{'request.course.sec'} ne '') {
+            @sections = ($env{'request.course.sec'});
+        } else {
+            @sections = &Apache::loncommon::get_env_multiple('form.section');
+        }
+        if (grep(/^all$/,@sections)) {
+            $showmore = 1;
+        } else {
+            foreach my $sec (@sections) {
+                if (&canmodify($sec)) {
+                    $showmore = 1;
+                    last;
+                }
+            }
+        }
+    }
+
+    if ($showmore) {
+        $gradeTable .=
+                   &Apache::lonhtmlcommon::row_closure()
                   .&Apache::lonhtmlcommon::row_title(&mt('Send Messages'))
                   .'<span class="LC_nobreak">'
                   .'<label><input type="radio" name="compmsg" value="0"'.$nocompmsg.' />'
@@ -1153,13 +1199,15 @@ LISTJAVASCRIPT
                   .&mt('Yes').('&nbsp;'x2).'</label>'
                   .&Apache::lonhtmlcommon::row_closure();
 
-    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
+        $gradeTable .= 
+                   &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
                   .'<select name="increment">'
                   .'<option value="1">'.&mt('Whole Points').'</option>'
                   .'<option value=".5">'.&mt('Half Points').'</option>'
                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
                   .'</select>';
+    }
     $gradeTable .= 
         &build_section_inputs().
 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
@@ -1180,9 +1228,14 @@ LISTJAVASCRIPT
     }
     $gradeTable .= &Apache::lonhtmlcommon::row_closure(1)
                   .&Apache::lonhtmlcommon::end_pick_box();
-
+    my $regrademsg;
+    if ($is_tool) {
+        $regrademsg =&mt("To view/grade/regrade, click on the check box(es) next to the student's name(s). Then click on the Next button.");
+    } else {
+        $regrademsg = &mt("To view/grade/regrade a submission or a group of submissions, click on the check box(es) next to the student's name(s). Then click on the Next button.");
+    }
     $gradeTable .= '<p>'
-                  .&mt("To view/grade/regrade a submission or a group of submissions, click on the check box(es) next to the student's name(s). Then click on the Next button.")."\n"
+                  .$regrademsg."\n"
                   .'<input type="hidden" name="command" value="processGroup" />'
                   .'</p>';
 
@@ -1617,7 +1670,6 @@ INNERJS
     my $end_page_msg_central =
 	&Apache::loncommon::end_page({'js_ready' => 1});
 
-
     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
     $docopen=~s/^document\.//;
 
@@ -1745,6 +1797,7 @@ INNERJS
 
   function msgTail() {
     pDoc = pWin.document;
+    //pDoc.write("<\\/table>");
     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
@@ -2064,7 +2117,7 @@ sub handback_box {
 	    if ($file =~ /\/portfolio\//) {
                 $file_counter++;
     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
-    	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
+    	        my ($name,$version,$ext) = &Apache::lonnet::file_name_version_ext($file_disp);
     	        $file_disp = "$name.$ext";
     	        $file = $file_path.$file_disp;
     	        $result.=&mt('Return commented version of [_1] to student.',
@@ -2254,6 +2307,7 @@ sub submission {
 
     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
     my $probtitle=&Apache::lonnet::gettitle($symb);
+    my $is_tool = ($symb =~ /ext\.tool$/);
     my ($essayurl,%coursedesc_by_cid);
 
     if (!&canview($usec)) {
@@ -2275,8 +2329,10 @@ sub submission {
     }
 
     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
-    if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
-    if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
+    unless ($is_tool) { 
+        if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
+        if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
+    }
     if (($numessay) && ($calledby eq 'submission') && (!exists($env{'form.compmsg'}))) {
         $env{'form.compmsg'} = 1;
     }
@@ -2469,11 +2525,15 @@ sub submission {
     # Display student info
     $request->print(($counter == 0 ? '' : '<br />'));
 
+    my $boxtitle = &mt('Submissions');
+    if ($is_tool) {
+        $boxtitle = &mt('Transactions')
+    }
     my $result='<div class="LC_Box">'
-              .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
+              .'<h3 class="LC_hcell">'.$boxtitle.'</h3>';
     $result.='<input type="hidden" name="name'.$counter.
              '" value="'.$env{'form.fullname'}.'" />'."\n";
-    if ($numresp > $numessay) {
+    if (($numresp > $numessay) && !$is_tool) {
         $result.='<p class="LC_info">'
                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
                 ."</p>\n";
@@ -2496,12 +2556,16 @@ sub submission {
     #             (3) All transactions (by date)
     #             (4) The whole record (with detailed information for all transactions)
 
-    my ($string,$timestamp)= &get_last_submission(\%record);
+    my ($string,$timestamp)= &get_last_submission(\%record,$is_tool);
 
     my $lastsubonly;
 
     if ($$timestamp eq '') {
         $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
+    } elsif ($is_tool) {
+        $lastsubonly =
+            '<div class="LC_grade_submissions_body">'
+           .'<b>'.&mt('Date Grade Passed Back:').'</b> '.$$timestamp."</div>\n";
     } else {
         $lastsubonly =
             '<div class="LC_grade_submissions_body">'
@@ -2532,7 +2596,7 @@ sub submission {
                     ' <span class="LC_internal_info">'.
                     '('.&mt('Response ID: [_1]',$respid).')'.
                     '</span>&nbsp; &nbsp;'.
-	            '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
+	       	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 		next;
 	    }
 	    foreach my $submission (@$string) {
@@ -2547,11 +2611,11 @@ sub submission {
                     $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,$subval);
+		    &most_similar($uname,$udom,$symb,$subval);
 		    if ($osim) {
-		        $osim=int($osim*100.0);
+			$osim=int($osim*100.0);
                         if ($hide eq 'anon') {
                             $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
                                      &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
@@ -2563,42 +2627,44 @@ sub submission {
                                                 $osim,
                                                 &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')').
                                             '</span></h3>';
-                            } elsif ($ocrsid ne '') {
+                            } else {
                                 my %old_course_desc;
-                                if (ref($coursedesc_by_cid{$ocrsid}) eq 'HASH') {
-                                    %old_course_desc = %{$coursedesc_by_cid{$ocrsid}};
-                                } else {
-                                    my $args;
-                                    if ($ocrsid ne $env{'request.course.id'}) {
-                                        $args = {'one_time' => 1};
+                                if ($ocrsid ne '') {
+                                    if (ref($coursedesc_by_cid{$ocrsid}) eq 'HASH') {
+                                        %old_course_desc = %{$coursedesc_by_cid{$ocrsid}};
+                                    } else {
+                                        my $args;
+                                        if ($ocrsid ne $env{'request.course.id'}) {
+                                            $args = {'one_time' => 1};
+                                        }
+                                        %old_course_desc =
+                                            &Apache::lonnet::coursedescription($ocrsid,$args);
+                                        $coursedesc_by_cid{$ocrsid} = \%old_course_desc;
                                     }
-                                    %old_course_desc =
-                                        &Apache::lonnet::coursedescription($ocrsid,$args);
-                                    $coursedesc_by_cid{$ocrsid} = \%old_course_desc;
+                                    $similar .=
+                                        '<h3><span class="LC_warning">'.
+                                        &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
+                                            $osim,
+                                            &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
+                                            $old_course_desc{'description'},
+                                            $old_course_desc{'num'},
+                                            $old_course_desc{'domain'}).
+                                        '</span></h3>';
+                                } else {
+                                    $similar .=
+                                        '<h3><span class="LC_warning">'.
+                                        &mt('Essay is [_1]% similar to an essay by [_2] in an unknown course',
+                                            $osim,
+                                            &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')').
+                                        '</span></h3>';
                                 }
-                                $similar .=
-                                    '<h3><span class="LC_warning">'.
-				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
-				        $osim,
-				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
-				        $old_course_desc{'description'},
-				        $old_course_desc{'num'},
-				        $old_course_desc{'domain'}).
-				    '</span></h3>';
-                            } else {
-                                $similar .=
-                                    '<h3><span class="LC_warning">'.
-                                    &mt('Essay is [_1]% similar to an essay by [_2] in an unknown course',
-                                        $osim,
-                                        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')').
-                                    '</span></h3>';
                             }
                             $similar .= '<blockquote><i>'.
                                         &keywords_highlight($oessay).
                                         '</i></blockquote><hr />';
-		        }
-                    }
-                }
+                        }
+	            }
+		}
 		my $order=&get_order($partid,$respid,$symb,$uname,$udom,
                                      undef,$type,$trial,$rndseed);
                 if (($env{'form.lastSub'} eq 'lastonly') ||
@@ -2616,7 +2682,7 @@ sub submission {
                             $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
                         } else {
                             $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
-                                         .'<br /><span class="LC_warning">';
+                                        .'<br /><span class="LC_warning">';
                             if(@$files == 1) {
                                 $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
                             } else {
@@ -2629,7 +2695,7 @@ sub submission {
                             }
                         }
 			$lastsubonly.='<br />';
-		    }
+                    }
                     if ($hide eq 'anon') {
                         $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
                     } else {
@@ -2648,7 +2714,7 @@ sub submission {
                     if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 		    $lastsubonly.='</div>';
 		}
-	    }
+            }
 	}
 	$lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
     }
@@ -2659,7 +2725,7 @@ sub submission {
     }
     if ($env{'form.lastSub'} =~ /^(last|all)$/) {
         my $identifier = (&canmodify($usec)? $counter : '');
-	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+        $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 								 $env{'request.course.id'},
 								 $last,'.submission',
 								 'Apache::grades::keywords_highlight',
@@ -2669,8 +2735,8 @@ sub submission {
 	.$udom.'" />'."\n");
     # return if view submission with no grading option
     if (!&canmodify($usec)) {
-        $request->print('<p><span class="LC_warning">'.&mt('No grading privileges').'</span></p></div>');
-        return;
+	$request->print('<p><span class="LC_warning">'.&mt('No grading privileges').'</span></p></div>');
+	return;
     } else {
 	$request->print('</div>'."\n");
     }
@@ -2690,7 +2756,7 @@ sub submission {
         $msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
         $result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
                  '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n".
-	         '&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
+                 '&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
                  ',\''.$msgfor.'\');" target="_self">'.
                  &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
                  &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
@@ -2698,14 +2764,19 @@ sub submission {
                  '/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".
-	         '</div></div>';
+                 '</div></div>';
         $request->print($result);
     }
 
     my %seen = ();
     my @partlist;
     my @gradePartRespid;
-    my @part_response_id = &flatten_responseType($responseType);
+    my @part_response_id;
+    if ($is_tool) {
+        @part_response_id = ([0,'']);
+    } else {
+        @part_response_id = &flatten_responseType($responseType);
+    }
     $request->print(
         '<div class="LC_Box">'
        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
@@ -2829,7 +2900,7 @@ sub check_collaborators {
 
 #--- Retrieve the last submission for all the parts
 sub get_last_submission {
-    my ($returnhash)=@_;
+    my ($returnhash,$is_tool)=@_;
     my (@string,$timestamp,%lasthidden);
     if ($$returnhash{'version'}) {
 	my %lasthash=();
@@ -2895,8 +2966,14 @@ sub get_last_submission {
 	}
     }
     if (!@string) {
+        my $msg;
+        if ($is_tool) {
+            $msg = &mt('No grade passed back.');
+        } else {
+            $msg = &mt('Nothing submitted - no attempts.');
+        }
 	$string[0] =
-	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
+	    '<span class="LC_warning">'.$msg.'</span>';
     }
     return (\@string,\$timestamp);
 }
@@ -2928,11 +3005,12 @@ sub show_previous_task_version {
     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
     if (!&canview($usec)) {
-        $request->print('<span class="LC_warning">'.
-                        &mt('Unable to view previous version for requested student.').
-                        ' '.&mt('([_1] in section [_2] in course id [_3])',
-                                $uname.':'.$udom,$usec,$env{'request.course.id'}).
-                        '</span>');
+        $request->print(
+            '<span class="LC_warning">'.
+            &mt('Unable to view previous version for requested student.').
+            ' '.&mt('([_1] in section [_2] in course id [_3])',
+                    $uname.':'.$udom,$usec,$env{'request.course.id'}).
+            '</span>');
         return;
     }
     my $mode = 'both';
@@ -3116,7 +3194,7 @@ sub processHandGrade {
 		next;
 	    }
 	    if ($errorflag eq 'not_allowed') {
-                $request->print(
+		$request->print(
                     '<span class="LC_error">'
                    .&mt('Not allowed to modify grades for [_1]',"$uname:$udom")
                    .'</span>');
@@ -3224,9 +3302,9 @@ sub processHandGrade {
 	$ctr = 0;
 	while ($ctr < $ngrade) {
 	    if ($env{'form.newmsg'.$ctr} ne '') {
-		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
-		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
-		$idx++;
+	        $keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
+	        $env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
+	        $idx++;
 	    }
 	    $ctr++;
 	}
@@ -3234,8 +3312,8 @@ sub processHandGrade {
 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
     }
     if (($numessay) || ($env{'form.compmsg'})) {
-	my $putresult = &Apache::lonnet::put
-	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
+        my $putresult = &Apache::lonnet::put
+            ('nohist_handgrade',\%keyhash,$cdom,$cnum);
     }
 
     # Called by Save & Refresh from Highlight Attribute Window
@@ -3337,7 +3415,7 @@ sub processHandGrade {
 	$ctr++;
     }
     if ($total < 0) {
-        my $the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\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 '';
@@ -3531,19 +3609,19 @@ sub handback_files {
 	my $part_resp = join('_',@{ $part_response_id });
         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
-                # if multiple files are uploaded names will be 'returndoc2','returndoc3'
-		if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
+                # if multiple files are uploaded names will be 'returndoc2','returndoc3' 
+                if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
                     my ($directory,$answer_file) = 
                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
                     my ($answer_name,$answer_ver,$answer_ext) =
-		        &file_name_version_ext($answer_file);
+		        &Apache::lonnet::file_name_version_ext($answer_file);
 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
                     my $getpropath = 1;
                     my ($dir_list,$listerror) =
                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
                                                  $domain,$stuname,$getpropath);
-		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
+		    my $version = &Apache::lonnet::get_next_version($answer_name,$answer_ext,$dir_list);
                     # fix filename
                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
@@ -3561,8 +3639,7 @@ sub handback_files {
 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 			}
                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
-			$file_msg.='<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
-
+			$file_msg.= '<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
                     }
                     $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
                 }
@@ -3573,7 +3650,7 @@ sub handback_files {
         $request->print('<br />');
         my @what = ($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 $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});    
         my ($subject,$message);
         if (scalar(@handedback) == 1) {
             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
@@ -3693,29 +3770,14 @@ sub version_portfiles {
     my $version_parts = join('|',@$v_flag);
     my @returned_keys;
     my $parts = join('|', @$parts_graded);
-    my $portfolio_root = '/userfiles/portfolio';
     foreach my $key (keys(%$record)) {
         my $new_portfiles;
         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
             my @versioned_portfiles;
             my @portfiles = split(/\s*,\s*/,$$record{$key});
-            foreach my $file (@portfiles) {
-                &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
-                my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
-		my ($answer_name,$answer_ver,$answer_ext) =
-		    &file_name_version_ext($answer_file);
-                my $getpropath = 1;
-                my ($dir_list,$listerror) =
-                    &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
-                                             $stu_name,$getpropath);
-                my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
-                my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
-                if ($new_answer ne 'problem getting file') {
-                    push(@versioned_portfiles, $directory.$new_answer);
-                    &Apache::lonnet::mark_as_readonly($domain,$stu_name,
-                        [$directory.$new_answer],
-                        [$symb,$env{'request.course.id'},'graded']);
-                }
+            if (@portfiles) {
+                &Apache::lonnet::portfiles_versioning($symb,$domain,$stu_name,\@portfiles,
+                                                      \@versioned_portfiles);
             }
             $$record{$key} = join(',',@versioned_portfiles);
             push(@returned_keys,$key);
@@ -3724,64 +3786,6 @@ sub version_portfiles {
     return (@returned_keys);   
 }
 
-sub get_next_version {
-    my ($answer_name, $answer_ext, $dir_list) = @_;
-    my $version;
-    if (ref($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;
-                    }
-	        }
-            }
-        }
-    }
-    $version ++;
-    return($version);
-}
-
-sub version_selected_portfile {
-    my ($domain,$stu_name,$directory,$file_name,$version) = @_;
-    my ($answer_name,$answer_ver,$answer_ext) =
-        &file_name_version_ext($file_name);
-    my $new_answer;
-    $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
-    if($env{'form.copy'} eq '-1') {
-        $new_answer = 'problem getting file';
-    } else {
-        $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
-        my $copy_result = &Apache::lonnet::finishuserfileupload(
-                            $stu_name,$domain,'copy',
-		        '/portfolio'.$directory.$new_answer);
-    }    
-    return ($new_answer);
-}
-
-sub file_name_version_ext {
-    my ($file)=@_;
-    my @file_parts = split(/\./, $file);
-    my ($name,$version,$ext);
-    if (@file_parts > 1) {
-	$ext=pop(@file_parts);
-	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
-	    $version=pop(@file_parts);
-	}
-	$name=join('.',@file_parts);
-    } else {
-	$name=join('.',@file_parts);
-    }
-    return($name,$version,$ext);
-}
-
 #--------------------------------------------------------------------------------------
 #
 #-------------------------- Next few routines handles grading by section or whole class
@@ -3959,6 +3963,11 @@ VIEWJAVASCRIPT
 #--- show scores for a section or whole class w/ option to change/update a score
 sub viewgrades {
     my ($request,$symb) = @_;
+    my ($is_tool,$toolsymb);
+    if ($symb =~ /ext\.tool$/) {
+        $is_tool = 1;
+        $toolsymb = $symb;
+    }
     &viewgrades_js($request);
 
     #need to make sure we have the correct data for later EXT calls, 
@@ -3993,7 +4002,26 @@ sub viewgrades {
     }
 
     my ($common_header,$specific_header,@sections,$section_display);
-    @sections = &Apache::loncommon::get_env_multiple('form.section');
+    if ($env{'request.course.sec'} ne '') {
+        @sections = ($env{'request.course.sec'});
+    } else {
+        @sections = &Apache::loncommon::get_env_multiple('form.section');
+    }
+
+# Check if Save button should be usable
+    my $disabled = ' disabled="disabled"';
+    if ($perm{'mgr'}) {
+        if (grep(/^all$/,@sections)) {
+            undef($disabled);
+        } else {
+            foreach my $sec (@sections) {
+                if (&canmodify($sec)) {
+                    undef($disabled);
+                    last;
+                }
+            }
+        }
+    }
     if (grep(/^all$/,@sections)) {
         @sections = ('all');
         if ($group_display) {
@@ -4003,7 +4031,7 @@ sub viewgrades {
             $common_header = &mt('Assign Common Grade to Students not assigned to any groups');
             $specific_header = &mt('Assign Grade to Specific Students not assigned to any groups');
         } else {
-            $common_header = &mt('Assign Common Grade to Class');
+	    $common_header = &mt('Assign Common Grade to Class');
             $specific_header = &mt('Assign Grade to Specific Students in Class');
         }
     } elsif (grep(/^none$/,@sections)) {
@@ -4016,7 +4044,7 @@ sub viewgrades {
             $specific_header = &mt('Assign Grade to Specific Students in no Section and in no Group');
         } else {
             $common_header = &mt('Assign Common Grade to Students in no Section');
-            $specific_header = &mt('Assign Grade to Specific Students in no Section');
+	    $specific_header = &mt('Assign Grade to Specific Students in no Section');
         }
     } else {
         $section_display = join (", ",@sections);
@@ -4030,7 +4058,7 @@ sub viewgrades {
             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1] and no Group',$section_display);
         } else {
             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
-            $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
+	    $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
         }
     }
     my %submit_types = &substatus_options();
@@ -4039,7 +4067,13 @@ sub viewgrades {
     if ($env{'form.submitonly'} eq 'all') {
         $result.= '<h3>'.$common_header.'</h3>';
     } else {
-        $result.= '<h3>'.$common_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>'; 
+        my $text;
+        if ($is_tool) {
+            $text = &mt('(transaction status: "[_1]")',$submission_status);
+        } else {
+            $text = &mt('(submission status: "[_1]")',$submission_status);
+        }
+        $result.= '<h3>'.$common_header.'&nbsp;'.$text.'</h3>';
     }
     $result .= &Apache::loncommon::start_data_table();
     #radio buttons/text box for assigning points for a section or class.
@@ -4052,7 +4086,12 @@ sub viewgrades {
     my %weight = ();
     my $ctsparts = 0;
     my %seen = ();
-    my @part_response_id = &flatten_responseType($responseType);
+    my @part_response_id;
+    if ($is_tool) {
+        @part_response_id = ([0,'']);
+    } else {
+        @part_response_id = &flatten_responseType($responseType);
+    }
     foreach my $part_response_id (@part_response_id) {
     	my ($partid,$respid) = @{ $part_response_id };
 	my $part_resp = join('_',@{ $part_response_id });
@@ -4076,10 +4115,10 @@ 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>'.
@@ -4103,10 +4142,16 @@ sub viewgrades {
 
     #table listing all the students in a section/class
     #header of table
-    if ($env{'form.submitonly'} eq 'all') { 
+    if ($env{'form.submitonly'} eq 'all') {
         $result.= '<h3>'.$specific_header.'</h3>';
     } else {
-        $result.= '<h3>'.$specific_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>';
+        my $text;
+        if ($is_tool) {
+            $text = &mt('(transaction status: "[_1]")',$submission_status);
+        } else {
+            $text = &mt('(submission status: "[_1]")',$submission_status);
+        }
+        $result.= '<h3>'.$specific_header.'&nbsp;'.$text.'</h3>';
     }
     $result.= &Apache::loncommon::start_data_table().
 	      &Apache::loncommon::start_data_table_header_row().
@@ -4120,10 +4165,10 @@ sub viewgrades {
     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
     my @partids = ();
     foreach my $part (@parts) {
-	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+	my $display=&Apache::lonnet::metadata($url,$part.'.display',$toolsymb);
         my $narrowtext = &mt('Tries');
 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
-	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
+	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name',$toolsymb); }
 	my ($partid) = &split_part_type($part);
         push(@partids,$partid);
 #
@@ -4132,8 +4177,8 @@ sub viewgrades {
 	my $display_part=&get_display_part($partid,$symb);
 	if ($display =~ /^Partial Credit Factor/) {
 	    $result.='<th>'.
-                &mt('Score Part: [_1][_2](weight = [_3])',
-                    $display_part,'<br />',$weight{$partid}).'</th>'."\n";
+		&mt('Score Part: [_1][_2](weight = [_3])',
+		    $display_part,'<br />',$weight{$partid}).'</th>'."\n";
 	    next;
 	    
 	} else {
@@ -4164,11 +4209,11 @@ sub viewgrades {
 		 return $a cmp $b;
 	     } (keys(%$fullname))) {
 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
-				   $_,$$fullname{$_},\@parts,\%weight,\$ctr,\%last_resets);
+				   $_,$$fullname{$_},\@parts,\%weight,\$ctr,\%last_resets,$is_tool);
     }
     $result.=&Apache::loncommon::end_data_table();
     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
-    $result.='<input type="button" value="'.&mt('Save').'" '.
+    $result.='<input type="button" value="'.&mt('Save').'"'.$disabled.' '.
 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
     if ($ctr == 0) {
         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
@@ -4181,7 +4226,7 @@ sub viewgrades {
                                    $stu_status);
                 } elsif (grep(/^none$/,@groups)) {
                     $result .= &mt('There are no students with no group assigned and with enrollment status [_1] to modify or grade.',
-                                   $stu_status);
+                                   $stu_status); 
                 } else {
                     $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] to modify or grade.',
                                    $group_display,$stu_status);
@@ -4234,8 +4279,8 @@ sub viewgrades {
                 }
             } else {
                 if (grep(/^all$/,@groups)) {
-                    $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
-                                   $section_display,$stu_status,$submission_status);
+	            $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
+	                           $section_display,$stu_status,$submission_status);
                 } elsif (grep(/^none$/,@groups)) {
                     $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] and submission status "[_3]" to modify or grade.',
                                    $section_display,$stu_status,$submission_status);
@@ -4244,15 +4289,15 @@ sub viewgrades {
                                    $section_display,$group_display,$stu_status,$submission_status);
                 }
             }
-	}
+        }
 	$result .= '</span><br />';
     }
     return $result;
 }
 
-#--- call by previous routine to display each student who satisfies submission filter.
+#--- call by previous routine to display each student who satisfies submission filter. 
 sub viewstudentgrade {
-    my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
+    my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets,$is_tool) = @_;
     my ($uname,$udom) = split(/:/,$student);
     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
     my $submitonly = $env{'form.submitonly'};
@@ -4310,7 +4355,6 @@ sub viewstudentgrade {
         my ($aggtries,$totaltries);
         unless (exists($aggregates{$part})) {
 	    $totaltries = $record{'resource.'.$part.'.tries'};
-
 	    $aggtries = $totaltries;
             if ($$last_resets{$part}) {  
                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
@@ -4359,6 +4403,10 @@ sub viewstudentgrade {
 #    record does not get update if unchanged
 sub editgrades {
     my ($request,$symb) = @_;
+    my $toolsymb;
+    if ($symb =~ /ext\.tool$/) {
+        $toolsymb = $symb;
+    }
 
     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
@@ -4405,7 +4453,7 @@ sub editgrades {
 	    my ($part,$type) = &split_part_type($stores);
 	    if ($part !~ m/^\Q$partid\E/) { next;}
 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
-	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
+	    my $display=&Apache::lonnet::metadata($url,$stores.'.display',$toolsymb);
 	    $display =~ s/\[Part: \Q$part\E\]//;
             my $narrowtext = &mt('Tries');
 	    $display =~ s/Number of Attempts/$narrowtext/;
@@ -4433,16 +4481,16 @@ sub editgrades {
 	my ($uname,$udom)=split(/:/,$user);
 	my %newrecord;
 	my $updateflag = 0;
-        my $usec=$classlist->{"$uname:$udom"}[5];
-        my $canmodify = &canmodify($usec);
-        my $line = '<td'.($canmodify?'':' colspan="2"').'>'.
-                   &nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
-        if (!$canmodify) {
-            push(@noupdate,
-                 $line."<td colspan=\"$totcolspan\"><span class=\"LC_warning\">".
-                 &mt('Not allowed to modify student')."</span></td>");
-            next;
-        }
+	my $usec=$classlist->{"$uname:$udom"}[5];
+	my $canmodify = &canmodify($usec);
+	my $line = '<td'.($canmodify?'':' colspan="2"').'>'.
+		   &nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
+	if (!$canmodify) {
+	    push(@noupdate,
+		 $line."<td colspan=\"$totcolspan\"><span class=\"LC_warning\">".
+		 &mt('Not allowed to modify student')."</span></td>");
+	    next;
+	}
         my %aggregate = ();
         my $aggregateflag = 0;
 	$user=~s/:/_/; # colon doen't work in javascript for names
@@ -4598,7 +4646,7 @@ sub split_part_type {
 #
 #--- Javascript to handle csv upload
 sub csvupload_javascript_reverse_associate {
-    my $error1=&mt('You need to specify the username or the student/employee ID');
+    my $error1=&mt('You need to specify the username, the student/employee ID, or the clicker ID');
     my $error2=&mt('You need to specify at least one grading field');
   &js_escape(\$error1);
   &js_escape(\$error2);
@@ -4607,13 +4655,15 @@ sub csvupload_javascript_reverse_associa
     var foundsomething=0;
     var founduname=0;
     var foundID=0;
+    var foundclicker=0;
     for (i=0;i<=vf.nfields.value;i++) {
       tw=eval('vf.f'+i+'.selectedIndex');
       if (i==0 && tw!=0) { foundID=1; }
       if (i==1 && tw!=0) { founduname=1; }
-      if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
+      if (i==2 && tw!=0) { foundclicker=1; }
+      if (i!=0 && i!=1 && i!=2 && i!=3 && tw!=0) { foundsomething=1; }
     }
-    if (founduname==0 && foundID==0) {
+    if (founduname==0 && foundID==0 && foundclicker==0) {
 	alert('$error1');
 	return;
     }
@@ -4640,7 +4690,7 @@ ENDPICK
 }
 
 sub csvupload_javascript_forward_associate {
-    my $error1=&mt('You need to specify the username or the student/employee ID');
+    my $error1=&mt('You need to specify the username, the student/employee ID, or the clicker ID');
     my $error2=&mt('You need to specify at least one grading field');
   &js_escape(\$error1);
   &js_escape(\$error2);
@@ -4649,13 +4699,15 @@ sub csvupload_javascript_forward_associa
     var foundsomething=0;
     var founduname=0;
     var foundID=0;
+    var foundclicker=0;
     for (i=0;i<=vf.nfields.value;i++) {
       tw=eval('vf.f'+i+'.selectedIndex');
       if (tw==1) { foundID=1; }
       if (tw==2) { founduname=1; }
-      if (tw>3) { foundsomething=1; }
+      if (tw==3) { foundclicker=1; }
+      if (tw>4) { foundsomething=1; }
     }
-    if (founduname==0 && foundID==0) {
+    if (founduname==0 && foundID==0 && Ć’oundclicker==0) {
 	alert('$error1');
 	return;
     }
@@ -4687,8 +4739,6 @@ sub csvuploadmap_header {
 	$javascript=&csvupload_javascript_forward_associate();
     }
 
-    my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
-    my $ignore=&mt('Ignore First Line');
     $symb = &Apache::lonenc::check_encrypt($symb);
     $request->print('<form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">'.
                     &mt('Total number of records found in file: [_1]',$distotal).'<hr />'.
@@ -4697,7 +4747,6 @@ sub csvuploadmap_header {
     $request->print(<<ENDPICK);
 <br />
 <input type="button" value="$reverse" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
-<label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 <input type="hidden" name="associate"  value="" />
 <input type="hidden" name="phase"      value="three" />
 <input type="hidden" name="datatoken"  value="$datatoken" />
@@ -4716,6 +4765,10 @@ ENDPICK
 
 sub csvupload_fields {
     my ($symb,$errorref) = @_;
+    my $toolsymb;
+    if ($symb =~ /ext\.tool$/) {
+        $toolsymb = $symb;
+    }
     my (@parts) = &getpartlist($symb,$errorref);
     if (ref($errorref)) {
         if ($$errorref) {
@@ -4725,13 +4778,14 @@ sub csvupload_fields {
 
     my @fields=(['ID','Student/Employee ID'],
 		['username','Student Username'],
+		['clicker','Clicker ID'],
 		['domain','Student Domain']);
     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
     foreach my $part (sort(@parts)) {
 	my @datum;
-	my $display=&Apache::lonnet::metadata($url,$part.'.display');
+	my $display=&Apache::lonnet::metadata($url,$part.'.display',$toolsymb);
 	my $name=$part;
-	if  (!$display) { $display = $name; }
+	if (!$display) { $display = $name; }
 	@datum=($name,$display);
 	if ($name=~/^stores_(.*)_awarded/) {
 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
@@ -4787,12 +4841,11 @@ sub upcsvScores_form {
 <input type="hidden" name="command" value="csvuploadmap" />
 $upfile_select
 <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
-<label><input type="checkbox" name="noFirstLine" />$ignore</label>
 </form>
 ENDUPFORM
     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
                            &mt("How do I create a CSV file from a spreadsheet")).
-            '</td>'.
+             '</td>'.
             &Apache::loncommon::end_data_table_row().
             &Apache::loncommon::end_data_table();
     return $result;
@@ -4807,13 +4860,12 @@ sub csvuploadmap {
     if (!$env{'form.datatoken'}) {
 	$datatoken=&Apache::loncommon::upfile_store($request);
     } else {
-        $datatoken=&Apache::loncommon::valid_datatoken($env{'form.datatoken'});
-        if ($datatoken ne '') { 
+	$datatoken=&Apache::loncommon::valid_datatoken($env{'form.datatoken'});
+        if ($datatoken ne '') {
 	    &Apache::loncommon::load_tmp_file($request,$datatoken);
         }
     }
     my @records=&Apache::loncommon::upfile_record_sep();
-    if ($env{'form.noFirstLine'}) { shift(@records); }
     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
     my ($i,$keyfields);
     if (@records) {
@@ -4850,8 +4902,6 @@ sub csvuploadmap {
 sub csvuploadoptions {
     my ($request,$symb)= @_;
     my $overwrite=&mt('Overwrite any existing score');
-    my $checked=(($env{'form.noFirstLine'})?'1':'0');
-    my $ignore=&mt('Ignore First Line');
     $request->print(<<ENDPICK);
 <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 <input type="hidden" name="command"    value="csvuploadassign" />
@@ -4865,7 +4915,7 @@ ENDPICK
     my %fields=&get_fields();
     if (!defined($fields{'domain'})) {
 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
-        $request->print("\n<p>".&mt('Users are in domain: [_1]',$domform)."</p>\n");
+	$request->print("\n<p>".&mt('Users are in domain: [_1]',$domform)."</p>\n");
     }
     foreach my $key (sort(keys(%env))) {
 	if ($key !~ /^form\.(.*)$/) { next; }
@@ -4903,11 +4953,10 @@ sub csvuploadassign {
     if (!$symb) {return '';}
     my $error_msg = '';
     my $datatoken = &Apache::loncommon::valid_datatoken($env{'form.datatoken'});
-    if ($datatoken ne '') {
+    if ($datatoken ne '') { 
         &Apache::loncommon::load_tmp_file($request,$datatoken);
     }
     my @gradedata = &Apache::loncommon::upfile_record_sep();
-    if ($env{'form.noFirstLine'}) { shift(@gradedata); }
     my %fields=&get_fields();
     my $courseid=$env{'request.course.id'};
     my ($classlist) = &getclasslist('all',0);
@@ -4929,13 +4978,45 @@ sub csvuploadassign {
 	if (!$username) {
 	    my $id=$entries{$fields{'ID'}};
 	    $id=~s/\s//g;
-	    my %ids=&Apache::lonnet::idget($domain,$id);
-	    $username=$ids{$id};
+            if ($id ne '') {
+	        my %ids=&Apache::lonnet::idget($domain,[$id]);
+	        $username=$ids{$id};
+            } else {
+                if ($entries{$fields{'clicker'}}) {
+                    my $clicker = $entries{$fields{'clicker'}};
+                    $clicker=~s/\s//g;
+                    if ($clicker ne '') {
+                        my %clickers = &Apache::lonnet::idget($domain,[$clicker],'clickers');
+                        if ($clickers{$clicker} ne '') {  
+                            my $match = 0;
+                            my @inclass;
+                            foreach my $poss (split(/,/,$clickers{$clicker})) {
+                                if (exists($$classlist{"$poss:$domain"})) {
+                                    $username = $poss;
+                                    push(@inclass,$poss);
+                                    $match ++;
+                                    
+                                }
+                            }
+                            if ($match > 1) {
+                                undef($username); 
+                                $request->print('<p class="LC_warning">'.
+                                                &mt('Score not saved for clicker: [_1] (matched multiple usernames: [_2])',
+                                                $clicker,join(', ',@inclass)).'</p>');
+                            }
+                        }
+                    }
+                }
+            }
 	}
 	if (!exists($$classlist{"$username:$domain"})) {
 	    my $id=$entries{$fields{'ID'}};
 	    $id=~s/\s//g;
-	    if ($id) {
+            my $clicker = $entries{$fields{'clicker'}};
+            $clicker=~s/\s//g;
+            if ($clicker) {
+                push(@skipped,"$clicker:$domain");
+	    } elsif ($id) {
 		push(@skipped,"$id:$domain");
 	    } else {
 		push(@skipped,"$username:$domain");
@@ -4963,7 +5044,7 @@ sub csvuploadassign {
                     my $award=($pcr == 0) ? 'incorrect_by_override'
                                           : 'correct_by_override';
                     if ($pcr>1) {
-                        push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
+                       push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
                     }
                     $grades{"resource.$part.awarded"}=$pcr;
                     $grades{"resource.$part.solved"}=$award;
@@ -4999,13 +5080,13 @@ sub csvuploadassign {
                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
                                              $env{'course.'.$env{'request.course.id'}.'.num'},
                                              $domain,$username);
-	   } else {
+              $countdone++;
+           } else {
 	      $request->print("<p><span class=\"LC_error\">".
                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
                                   "$username:$domain",$result)."</span></p>");
 	   }
 	   $request->rflush();
-	   $countdone++;
         }
     }
     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
@@ -5074,30 +5155,30 @@ LISTJAVASCRIPT
     # Collection of hidden fields
     my $ctr=0;
     foreach (@$titles) {
-	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
-	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
-	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
-	$ctr++;
+        my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+        $result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
+        $result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
+        $ctr++;
     }
     $result.='<input type="hidden" name="page" />'."\n".
-	'<input type="hidden" name="title" />'."\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($symb).'" />'."\n";
+	'<input type="hidden" name="command" value="displayPage" />'."\n".
+	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($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+)\.(.*)/);
-        $select.='<option value="'.$ctr.'"'.
-            ($$symbx{$_} =~ /$curpage$/ ? ' selected="selected"' : '').
-            '>'.$showtitle.'</option>'."\n";
-        $ctr++;
+	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
+	$select.='<option value="'.$ctr.'"'.
+	    ($$symbx{$_} =~ /$curpage$/ ? ' selected="selected"' : '').
+	    '>'.$showtitle.'</option>'."\n";
+	$ctr++;
     }
     $select.= '</select>';
 
@@ -5123,7 +5204,7 @@ LISTJAVASCRIPT
        .'<label><input type="radio" name="lastSub" value="all" /> '
            .&mt('all submissions with details').' </label>'
        .&Apache::lonhtmlcommon::row_closure();
-
+    
     $result.=
         &Apache::lonhtmlcommon::row_title(&mt('Use CODE'))
        .'<input type="text" name="CODE" value="" />'
@@ -5195,7 +5276,7 @@ sub getSymbMap {
     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 					       1,0,1);
     for my $sequence ($navmap->getById('0.0'), @sequences) {
-	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
+	if ($navmap->hasResource($sequence, sub { shift->is_gradable(); }, 0) ) {
 	    my $title = $minder.'.'.
 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 	    push(@titles, $title); # minder in case two titles are identical
@@ -5226,10 +5307,10 @@ sub displayPage {
     &Apache::lonnet::clear_EXT_cache_status();
 
     if (!&canview($usec)) {
-	$request->print(
+        $request->print(
             '<span class="LC_warning">'.
             &mt('Unable to view requested student. ([_1])',
-                $env{'form.student'}).
+                    $env{'form.student'}).
             '</span>');
         return;
     }
@@ -5292,10 +5373,11 @@ sub displayPage {
         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
         if($curRes == $iterator->END_MAP) { $depth--; }
 
-        if (ref($curRes) && $curRes->is_problem()) {
+        if (ref($curRes) && $curRes->is_gradable()) {
 	    my $parts = $curRes->parts();
             my $title = $curRes->compTitle();
 	    my $symbx = $curRes->symb();
+            my $is_tool = ($symbx =~ /ext\.tool$/);
 	    $studentTable.=
 		&Apache::loncommon::start_data_table_row().
 		'<td align="center" valign="top" >'.$prob.
@@ -5306,26 +5388,34 @@ sub displayPage {
 		 '</td>';
 	    $studentTable.='<td valign="top">';
 	    my %form = ('CODE' => $env{'form.CODE'},);
-	    if ($env{'form.vProb'} eq 'yes' ) {
-		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
-					     undef,'both',\%form);
-	    } else {
-		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
-		$companswer =~ s|<form(.*?)>||g;
-		$companswer =~ s|</form>||g;
-#		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
-#		    $companswer =~ s/$1/ /ms;
-#		    $request->print('match='.$1."<br />\n");
-#		}
-#		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
-		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
+            if ($is_tool) {
+                $studentTable.='&nbsp;<b>'.$title.'</b><br />';
+            } else {
+	        if ($env{'form.vProb'} eq 'yes' ) {
+		    $studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
+					         undef,'both',\%form);
+	        } else {
+		    my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
+		    $companswer =~ s|<form(.*?)>||g;
+		    $companswer =~ s|</form>||g;
+#		    while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
+#		        $companswer =~ s/$1/ /ms;
+#		        $request->print('match='.$1."<br />\n");
+#		    }
+#		    $companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
+		    $studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
+		}
 	    }
 
 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 
 	    if ($env{'form.lastSub'} eq 'datesub') {
 		if ($record{'version'} eq '') {
-		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
+                    my $msg = &mt('No recorded submission for this problem.');
+                    if ($is_tool) {
+                        $msg = &mt('No recorded transactions for this external tool');
+                    }
+		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.$msg.'</span><br />';
 		} else {
 		    my %responseType = ();
 		    foreach my $partid (@{$parts}) {
@@ -5338,11 +5428,10 @@ sub displayPage {
 			$responseType{$partid} = \%responseIds;
 		    }
 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
-
 		}
 	    } elsif ($env{'form.lastSub'} eq 'all') {
 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
-                my $identifier = (&canmodify($usec)? $prob : '');
+                my $identifier = (&canmodify($usec)? $prob : ''); 
 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 									$env{'request.course.id'},
 									'','.submission',undef,
@@ -5364,10 +5453,14 @@ sub displayPage {
 	}
         $curRes = $iterator->next();
     }
+    my $disabled;
+    unless (&canmodify($usec)) {
+        $disabled = ' disabled="disabled"';
+    }
 
     $studentTable.=
         '</table>'."\n".
-        '<input type="button" value="'.&mt('Save').'" '.
+        '<input type="button" value="'.&mt('Save').'"'.$disabled.' '.
         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
         '</form>'."\n";
     $request->print($studentTable);
@@ -5379,13 +5472,14 @@ sub displaySubByDates {
     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
     my $isCODE=0;
     my $isTask = ($symb =~/\.task$/);
+    my $is_tool = ($symb =~/\.tool$/);
     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
     my $studentTable=&Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
 	'<th>'.&mt('Date/Time').'</th>'.
 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
         ($isTask?'<th>'.&mt('Version').'</th>':'').
-	'<th>'.&mt('Submission').'</th>'.
+	'<th>'.($is_tool?&mt('Grade'):&mt('Submission')).'</th>'.
 	'<th>'.&mt('Status').'</th>'.
 	&Apache::loncommon::end_data_table_header_row();
     my ($version);
@@ -5393,7 +5487,11 @@ sub displaySubByDates {
     my %orders;
     $mark{'correct_by_student'} = $checkIcon;
     if (!exists($$record{'1:timestamp'})) {
-	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
+        if ($is_tool) {
+            return '<br />&nbsp;<span class="LC_warning">'.&mt('No grade passed back.').'</span><br />';
+        } else {
+            return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
+        }
     }
 
     my $interaction;
@@ -5426,59 +5524,64 @@ sub displaySubByDates {
             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
                 $hidden = 1;
             }
-	    my @matchKey;
+            my @matchKey;
             if ($isTask) {
                 @matchKey = sort(grep(/^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys));
+            } elsif ($is_tool) {
+                @matchKey = sort(grep(/^resource\.\Q$partid\E\.awarded$/,@versionKeys));
             } else {
-		@matchKey = sort(grep(/^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
+                @matchKey = sort(grep(/^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
             }
 #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 	    my $display_part=&get_display_part($partid,$symb);
 	    foreach my $matchKey (@matchKey) {
 		if (exists($$record{$version.':'.$matchKey}) &&
 		    $$record{$version.':'.$matchKey} ne '') {
-                    
-		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
-				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
-                    $displaySub[0].='<span class="LC_nobreak">';
-                    $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
-                                   .' <span class="LC_internal_info">'
-                                   .'('.&mt('Response ID: [_1]',$responseId).')'
-                                   .'</span>'
-                                   .' <b>';
-                    if ($hidden) {
-                        $displaySub[0].= &mt('Anonymous Survey').'</b>';
+                    if ($is_tool) {
+                        $displaySub[0].=$$record{"$version:resource.$partid.awarded"};
                     } else {
-                        my ($trial,$rndseed,$newvariation);
-                        if ($type eq 'randomizetry') {
-                            $trial = $$record{"$where.$partid.tries"};
-                            $rndseed = $$record{"$where.$partid.rndseed"};
-                        }
-		        if ($$record{"$where.$partid.tries"} eq '') {
-			    $displaySub[0].=&mt('Trial not counted');
-		        } else {
-			    $displaySub[0].=&mt('Trial: [_1]',
-					    $$record{"$where.$partid.tries"});
-                            if (($rndseed ne '')  && ($lastrndseed{$partid} ne '')) {
-                                if (($rndseed ne $lastrndseed{$partid}) &&
-                                    (($type eq 'randomizetry') || ($lasttype{$partid} eq 'randomizetry'))) {
-                                    $newvariation = '&nbsp;('.&mt('New variation this try').')';
-                                }
+		        my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
+				                   : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
+                        $displaySub[0].='<span class="LC_nobreak">';
+                        $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
+                                       .' <span class="LC_internal_info">'
+                                       .'('.&mt('Response ID: [_1]',$responseId).')'
+                                       .'</span>'
+                                       .' <b>';
+                        if ($hidden) {
+                            $displaySub[0].= &mt('Anonymous Survey').'</b>';
+                        } else {
+                            my ($trial,$rndseed,$newvariation);
+                            if ($type eq 'randomizetry') {
+                                $trial = $$record{"$where.$partid.tries"};
+                                $rndseed = $$record{"$where.$partid.rndseed"};
                             }
-                            $lastrndseed{$partid} = $rndseed;
-                            $lasttype{$partid} = $type;
-		        }
-		        my $responseType=($isTask ? 'Task'
+		            if ($$record{"$where.$partid.tries"} eq '') {
+			        $displaySub[0].=&mt('Trial not counted');
+		            } else {
+			        $displaySub[0].=&mt('Trial: [_1]',
+					        $$record{"$where.$partid.tries"});
+                                if (($rndseed ne '') && ($lastrndseed{$partid} ne '')) {
+                                    if (($rndseed ne $lastrndseed{$partid}) &&
+                                        (($type eq 'randomizetry') || ($lasttype{$partid} eq 'randomizetry'))) {
+                                        $newvariation = '&nbsp;('.&mt('New variation this try').')';
+                                    }
+                                }
+                                $lastrndseed{$partid} = $rndseed;
+                                $lasttype{$partid} = $type;
+		            }
+		            my $responseType=($isTask ? 'Task'
                                               : $responseType->{$partid}->{$responseId});
-		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
-		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
-			    $orders{$partid}->{$responseId}=
-			        &get_order($partid,$responseId,$symb,$uname,$udom,
-                                           $no_increment,$type,$trial,$rndseed);
-		        }
-		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
-		        $displaySub[0].='&nbsp; '.
-			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
+		            if (!exists($orders{$partid})) { $orders{$partid}={}; }
+		            if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
+			        $orders{$partid}->{$responseId}=
+			            &get_order($partid,$responseId,$symb,$uname,$udom,
+                                               $no_increment,$type,$trial,$rndseed);
+		            }
+		            $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
+		            $displaySub[0].='&nbsp; '.
+			        &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
+                        }
                     }
 		}
 	    }
@@ -5493,14 +5596,22 @@ sub displaySubByDates {
 		    lc($$record{"$where.$partid.award"}).' '.
 		    $mark{$$record{"$where.$partid.solved"}}.
 		    '<br />';
+	    } elsif (($is_tool) && (exists($$record{"$version:resource.$partid.solved"}))) {
+		if ($$record{"$version:resource.$partid.solved"} =~ /^(in|)correct_by_passback$/) {
+		    $displaySub[1].=&mt('Grade passed back by external tool');
+		}
 	    }
 	    if (exists $$record{"$where.$partid.regrader"}) {
-		$displaySub[2].=$$record{"$where.$partid.regrader"}.
-		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
+		$displaySub[2].=$$record{"$where.$partid.regrader"};
+		unless ($is_tool) {
+		    $displaySub[2].=' (<b>'.&mt('Part').':</b> '.$display_part.')';
+		}
 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 		$displaySub[2].=
-		    $$record{"$version:resource.$partid.regrader"}.
-		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
+		    $$record{"$version:resource.$partid.regrader"};
+                unless ($is_tool) {
+		    $displaySub[2].=' (<b>'.&mt('Part').':</b> '.$display_part.')';
+                }
 	    }
 	}
 	# needed because old essay regrader has not parts info
@@ -6002,30 +6113,31 @@ sub scantron_selectphase {
 
     $ssi_error = 0;
 
-    if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
-        &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+    if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) || $perm{'usc'}) {
 
-        # Chunk of form to prompt for a scantron file upload.
+	# Chunk of form to prompt for a scantron file upload.
 
         $r->print('
     <br />');
-        my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
-        my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
-        my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
-        &js_escape(\$alertmsg);
-        my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($cdom);
-        $r->print(&Apache::lonhtmlcommon::scripttag('
+    my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
+    my $csec= $env{'request.course.sec'};
+    my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
+    &js_escape(\$alertmsg);
+    my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($cdom);
+    $r->print(&Apache::lonhtmlcommon::scripttag('
     function checkUpload(formname) {
-        if (formname.upfile.value == "") {
-            alert("'.$alertmsg.'");
-            return false;
-        }
-        formname.submit();
+	if (formname.upfile.value == "") {
+	    alert("'.$alertmsg.'");
+	    return false;
+	}
+	formname.submit();
     }'."\n".$formatjs));
-        $r->print('
+    $r->print('
               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
                 '.$default_form_data.'
                 <input name="courseid" type="hidden" value="'.$cnum.'" />
+                <input name="coursesec" type="hidden" value="'.$csec.'" />
                 <input name="domainid" type="hidden" value="'.$cdom.'" />
                 <input name="command" value="scantronupload_save" type="hidden" />
               '.&Apache::loncommon::start_data_table('LC_scantron_action').'
@@ -6037,8 +6149,8 @@ sub scantron_selectphase {
               '.&Apache::loncommon::start_data_table_row().'
             <td>
                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'<br />'."\n");
-        if ($formatoptions) {
-            $r->print('</td>
+    if ($formatoptions) {
+        $r->print('</td>
                  '.&Apache::loncommon::end_data_table_row().'
                  '.&Apache::loncommon::start_data_table_row().'
                  <td>'.$formattitle.('&nbsp;'x2).$formatoptions.'
@@ -6046,16 +6158,16 @@ sub scantron_selectphase {
                  '.&Apache::loncommon::end_data_table_row().'
                  '.&Apache::loncommon::start_data_table_row().'
                  <td>'
-            );
-        } else {
-            $r->print(' <br />');
-        }
-        $r->print('<input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
+        );
+    } else {
+        $r->print(' <br />');
+    }
+    $r->print('<input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
               </td>
              '.&Apache::loncommon::end_data_table_row().'
              '.&Apache::loncommon::end_data_table().'
              </form>'
-        );
+    );
 
     }
 
@@ -6172,7 +6284,9 @@ sub scantron_selectphase {
 =item username_to_idmap
 
     creates a hash keyed by student/employee ID with values of the corresponding
-    student username:domain.
+    student username:domain. If a single ID occurs for more than one student,
+    the status of the student is checked, and if Active, the value in the hash
+    will be set to the Active student.
 
   Arguments:
 
@@ -6372,12 +6486,12 @@ sub digits_to_letters {
 
 =item scantron_parse_scanline
 
-  Decodes a scanline from the selected scantron file
+  Decodes a scanline from the selected bubblesheet file
 
  Arguments:
-    line             - The text of the scantron file line to process
+    line             - The text of the bubblesheet file line to process
     whichline        - Line number
-    scantron_config  - Hash describing the format of the scantron lines.
+    scantron_config  - Hash describing the format of the bubblesheet lines.
     scan_data        - Hash of extra information about the scanline
                        (see scantron_getfile for more information)
     just_header      - True if should not process question answers but only
@@ -6402,7 +6516,7 @@ sub digits_to_letters {
     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
 
@@ -6495,7 +6609,7 @@ sub scantron_parse_scanline {
                                          $partids_by_symb,$orderedforcode,
                                          $respnumlookup,$startline);
         if ($total) {
-            $lastpos = $total*$$scantron_config{'Qlength'};
+            $lastpos = $total*$$scantron_config{'Qlength'}; 
         }
         if (ref($totalref)) {
             $$totalref = $total;
@@ -6509,7 +6623,7 @@ sub scantron_parse_scanline {
         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
             $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
         } else {
-            $answers_needed = $bubble_lines_per_response{$questnum};
+	    $answers_needed = $bubble_lines_per_response{$questnum};
         }
         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
                              || 1;
@@ -6570,7 +6684,7 @@ sub scantron_parse_scanline {
 
 sub get_master_seq {
     my ($resources,$master_seq,$symb_to_resource) = @_;
-    return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
+    return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') && 
                    (ref($symb_to_resource) eq 'HASH'));
     my $resource_error;
     foreach my $resource (@{$resources}) {
@@ -6648,7 +6762,7 @@ sub scantron_validator_lettnum {
     my $occurrences = 0;
     my $responsenum = $questnum-1;
     if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
-       $responsenum = $respnumlookup->{$questnum-1}
+       $responsenum = $respnumlookup->{$questnum-1} 
     }
     if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
         ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
@@ -6944,7 +7058,7 @@ sub scantron_process_corrections {
 	}
     }
     if ($err) {
-	$r->print(
+        $r->print(
             '<p class="LC_error">'
            .&mt('Unable to accept last correction, an error occurred: [_1]',
                 $errmsg)
@@ -7081,7 +7195,7 @@ sub scantron_warning_screen {
             '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
             $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
     }
-    return ('
+    return '
 <p>
 <span class="LC_warning">
 '.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
@@ -7093,9 +7207,7 @@ sub scantron_warning_screen {
 </table>
 <p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'<br />
 '.&mt('If something is incorrect, please return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>
-
-<br />
-');
+';
 }
 
 =pod
@@ -7121,15 +7233,58 @@ sub scantron_do_warning {
 	} 
 	if ( $env{'form.scantron_selectfile'} eq '') {
 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
-	} 
+	}
 	if ( $env{'form.scantron_format'} eq '') {
 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
-	} 
+	}
     } else {
 	my $warning=&scantron_warning_screen('Grading: Validate Records',$symb);
+        my ($checksec,@possibles) = &gradable_sections();
+        my $gradesections;
+        if ($checksec) {
+            my $file=$env{'form.scantron_selectfile'};
+            if (&valid_file($file)) {
+                my %bysec = &scantron_get_sections();
+                my $table;
+                if ((keys(%bysec) > 1) || ((keys(%bysec) == 1) && ((keys(%bysec))[0] ne $checksec))) {
+                    $gradesections = &mt('Your current role is for section [_1].','<i>'.$checksec.'</i>').'<br />';
+                    $table = &Apache::loncommon::start_data_table()."\n".
+                             &Apache::loncommon::start_data_table_header_row().
+                             '<th>'.&mt('Section').'</th><th>'.&mt('Number of records').'</th>'.
+                              &Apache::loncommon::end_data_table_header_row()."\n";
+                    if ($bysec{'none'}) {
+                        $table .= &Apache::loncommon::start_data_table_row().
+                                  '<td>'.&mt('None').'</td><td>'.$bysec{'none'}.'</td>'.
+                                  &Apache::loncommon::end_data_table_row()."\n";
+                    }
+                    foreach my $sec (sort { $a <=> $b } keys(%bysec)) {
+                        next if ($sec eq 'none');
+                        $table .= &Apache::loncommon::start_data_table_row().
+                                  '<td>'.$sec.'</td><td>'.$bysec{$sec}.'</td>'.
+                                  &Apache::loncommon::end_data_table_row()."\n";
+                    }
+                    $table .= &Apache::loncommon::end_data_table()."\n";
+                    $gradesections .= &mt('Sections represented in the bubblesheet data file (based on bubbled student IDs) are as follows:').
+                                      '<p>'.$table.'</p>';
+                    if (@possibles) {
+                        $gradesections .= '<p>'.
+                                          &mt('You have role(s) in [quant,_1,other section,other sections] with privileges to manage grades.',
+                                              scalar(@possibles)).'<br />'.
+                                          &mt('Check which of those section(s), in addition to section [_1], you wish to grade using this bubblesheet file:',
+                                              '<i>'.$checksec.'</i>').' ';
+                        foreach my $sec (sort {$a <=> $b } @possibles) {
+                            $gradesections .= '<label><input type="checkbox" name="scantron_othersections" value="'.$sec.'" />'.$sec.'</label>'.('&nbsp;'x2);
+                        }
+                        $gradesections .= '</p>';
+                    }
+                }
+            } else {
+                $gradesections = '<p class="LC_error">'.&mt('The selected file is unavailable').'</p>';
+            }
+        }
         my $bubbledbyhand=&hand_bubble_option();
 	$r->print('
-'.$warning.$bubbledbyhand.'
+'.$warning.$gradesections.$bubbledbyhand.'
 <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 <input type="hidden" name="command" value="scantron_validate" />
 ');
@@ -7216,7 +7371,38 @@ sub scantron_validate_file {
     if ($env{'form.scantron_corrections'}) {
 	&scantron_process_corrections($r);
     }
-    $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
+
+    $r->print('<p>'.&mt('Gathering necessary information.').'</p>');
+    my ($checksec,@gradable);
+    if ($env{'request.course.sec'}) {
+        ($checksec,my @possibles) = &gradable_sections();
+        if ($checksec) {
+            if (@possibles) {
+                my @chosensecs = &Apache::loncommon::get_env_multiple('form.scantron_othersections');
+                if (@chosensecs) {
+                    foreach my $sec (@chosensecs) {
+                        if (grep(/^\Q$sec\E$/,@possibles)) {
+                            unless (grep(/^\Q$sec\E$/,@gradable)) {
+                                push(@gradable,$sec);
+                            }
+                        }
+                    }
+                }
+            }
+            $r->print('<p><table>');
+            if (@gradable) {
+                my @showsections = sort { $a <=> $b } (@gradable,$checksec);
+                $r->print(
+                    '<tr><td><b>'.&mt('Sections to be Graded:').'</b></td><td>'.join(', ',@showsections).'</td></tr>');
+            } else {
+                $r->print(
+                    '<tr><td><b>'.&mt('Section to be Graded:').'</b></td><td>'.$checksec.'</td></tr>');
+            }
+            $r->print('</table></p>');
+        }
+    }
+    $r->rflush();
+
     #get the student pick code ready
     $r->print(&Apache::loncommon::studentbrowser_javascript());
     my $nav_error;
@@ -7241,23 +7427,39 @@ sub scantron_validate_file {
 	$env{'form.validatepass'} = 0;
     }
     my $currentphase=$env{'form.validatepass'};
-
+    my %skipbysec=();
 
     my $stop=0;
     while (!$stop && $currentphase < scalar(@validate_phases)) {
 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 	$r->rflush();
-
+     
 	my $which="scantron_validate_".$validate_phases[$currentphase];
 	{
 	    no strict 'refs';
-	    ($stop,$currentphase)=&$which($r,$currentphase);
+            my @extras=();
+            if ($validate_phases[$currentphase] eq 'ID') {
+                @extras = (\%skipbysec,$checksec,@gradable);
+            }
+	    ($stop,$currentphase)=&$which($r,$currentphase,@extras);
 	}
     }
     if (!$stop) {
 	my $warning=&scantron_warning_screen('Start Grading',$symb);
+        my $secinfo;
+        if (keys(%skipbysec) > 0) {
+            my $seclist = '<ul>';
+            foreach my $sec (sort { $a <=> $b } keys(%skipbysec)) {
+                $seclist .= '<li>'.&mt('section [_1]: [_2]',$sec,$skipbysec{$sec}).'</li>';
+            }
+            $seclist .= '</ul>';
+            $secinfo = '<p class="LC_info">'.
+                       &mt('Numbers of records for students in sections not being graded [_1]',
+                           $seclist).
+                       '</p>';
+        }
 	$r->print(&mt('Validation process complete.').'<br />'.
-                  $warning.
+                  $secinfo.$warning.
                   &mt('Perform verification for each student after storage of submissions?').
                   '&nbsp;<span class="LC_nobreak"><label>'.
                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
@@ -7277,7 +7479,7 @@ sub scantron_validate_file {
 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 	    $r->print(' '.&mt('this error').' <br />');
 
-            $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>');
+	    $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$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)" />');
@@ -7656,9 +7858,10 @@ sub scantron_validate_sequence {
 	my @resources=
 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 	if (@resources) {
-	    $r->print('<p class="LC_warning">'
+	    $r->print(
+                '<p class="LC_warning">'
                .&mt('Some resources in the sequence currently are not set to'
-                   .' exam mode. Grading these resources currently may not'
+                   .' bubblesheet exam mode. Grading these resources currently may not'
                    .' work correctly.')
                .'</p>'
             );
@@ -7672,11 +7875,12 @@ sub scantron_validate_sequence {
 
 
 sub scantron_validate_ID {
-    my ($r,$currentphase) = @_;
+    my ($r,$currentphase,$skipbysec,$checksec,@gradable) = @_;
     
     #get student info
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&username_to_idmap($classlist);
+    my $secidx = &Apache::loncoursedata::CL_SECTION();
 
     #get scantron line setup
     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
@@ -7690,6 +7894,7 @@ sub scantron_validate_ID {
     }
 
     my %found=('ids'=>{},'usernames'=>{});
+    my $unsavedskips = 0;
     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 	if ($line=~/^[\s\cz]*$/) { next; }
@@ -7702,13 +7907,41 @@ sub scantron_validate_ID {
 	}
 	if ($found) {
 	    my $username=$idmap{$found};
+            if ($checksec) {
+                if (ref($classlist->{$username}) eq 'ARRAY') {
+                    my $stusec = $classlist->{$username}->[$secidx];
+                    if ($stusec ne $checksec) {
+                        unless ((@gradable > 0) && (grep(/^\Q$stusec\E$/,@gradable))) {
+                            my $skip=1;
+                            &scantron_put_line($scanlines,$scan_data,$i,$line,$skip);
+                            if (ref($skipbysec) eq 'HASH') {
+                                if ($stusec eq '') {
+                                    $skipbysec->{'none'} ++;
+                                } else {
+                                    $skipbysec->{$stusec} ++;
+                                }
+                            }
+                            $unsavedskips ++;
+                            next;
+                        }
+                    }
+                }
+            }
 	    if ($found{'ids'}{$found}) {
 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 					 $line,'duplicateID',$found);
+                if ($unsavedskips) {
+                    &scantron_putfile($scanlines,$scan_data);
+                    $unsavedskips = 0;
+                }
 		return(1,$currentphase);
 	    } elsif ($found{'usernames'}{$username}) {
 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 					 $line,'duplicateID',$username);
+                if ($unsavedskips) {
+                    &scantron_putfile($scanlines,$scan_data);
+                    $unsavedskips = 0;
+                }
 		return(1,$currentphase);
 	    }
 	    #FIXME store away line we previously saw the ID on to use above
@@ -7717,29 +7950,95 @@ sub scantron_validate_ID {
 	} else {
 	    if ($id =~ /^\s*$/) {
 		my $username=&scan_data($scan_data,"$i.user");
-		if (defined($username) && $found{'usernames'}{$username}) {
+                if (($checksec && $username ne '')) {
+                    if (ref($classlist->{$username}) eq 'ARRAY') {
+                        my $stusec = $classlist->{$username}->[$secidx];
+                        if ($stusec ne $checksec) {
+                            unless ((@gradable > 0) && (grep(/^\Q$stusec\E$/,@gradable))) {
+                                my $skip=1;
+                                &scantron_put_line($scanlines,$scan_data,$i,$line,$skip);
+                                if (ref($skipbysec) eq 'HASH') {
+                                    if ($stusec eq '') {
+                                        $skipbysec->{'none'} ++;
+                                    } else {
+                                        $skipbysec->{$stusec} ++;
+                                    }
+                                }
+                                $unsavedskips ++;
+                                next;
+                            }
+                        }
+                    }
+		} elsif (defined($username) && $found{'usernames'}{$username}) {
 		    &scantron_get_correction($r,$i,$scan_record,
 					     \%scantron_config,
 					     $line,'duplicateID',$username);
+                    if ($unsavedskips) {
+                        &scantron_putfile($scanlines,$scan_data);
+                        $unsavedskips = 0;
+                    }
 		    return(1,$currentphase);
 		} elsif (!defined($username)) {
 		    &scantron_get_correction($r,$i,$scan_record,
 					     \%scantron_config,
 					     $line,'incorrectID');
+                    if ($unsavedskips) {
+                        &scantron_putfile($scanlines,$scan_data);
+                        $unsavedskips = 0;
+                    }
 		    return(1,$currentphase);
 		}
 		$found{'usernames'}{$username}++;
 	    } else {
 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 					 $line,'incorrectID');
+                if ($unsavedskips) {
+                    &scantron_putfile($scanlines,$scan_data);
+                    $unsavedskips = 0;
+                }
 		return(1,$currentphase);
 	    }
 	}
     }
-
+    if ($unsavedskips) {
+        &scantron_putfile($scanlines,$scan_data);
+        $unsavedskips = 0;
+    }
     return (0,$currentphase+1);
 }
 
+sub scantron_get_sections {
+    my %bysec;
+    if ($env{'form.scantron_format'} ne '') {
+        my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
+        my ($scanlines,$scan_data)=&scantron_getfile();
+        my $classlist=&Apache::loncoursedata::get_classlist();
+        my %idmap=&username_to_idmap($classlist);
+        foreach my $key (keys(%idmap)) {
+            my $lckey = lc($key);
+            $idmap{$lckey} = $idmap{$key};
+        }
+        my $secidx = &Apache::loncoursedata::CL_SECTION();
+        for (my $i=0;$i<=$scanlines->{'count'};$i++) {
+            my $line=&scantron_get_line($scanlines,$scan_data,$i);
+            if ($line=~/^[\s\cz]*$/) { next; }
+            my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
+                                                     $scan_data);
+            my $id=lc($$scan_record{'scantron.ID'});
+            if (exists($idmap{$id})) {
+                if (ref($classlist->{$idmap{$id}}) eq 'ARRAY') {
+                    my $stusec = $classlist->{$idmap{$id}}->[$secidx];
+                    if ($stusec eq '') {
+                        $bysec{'none'} ++;
+                    } else {
+                        $bysec{$stusec} ++;
+                    }
+                }
+            }
+        }
+    }
+    return %bysec;
+}
 
 sub scantron_get_correction {
     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
@@ -7780,10 +8079,10 @@ sub scantron_get_correction {
 
     if ($error =~ /ID$/) {
 	if ($error eq 'incorrectID') {
-	    $r->print('<p class="LC_warning">'.&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') {
-	    $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$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);
 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
@@ -7803,8 +8102,8 @@ sub scantron_get_correction {
 	} elsif ($error eq 'duplicateCODE') {
 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 	}
-        $r->print("<p>".&mt('The CODE on the form is [_1]',
-                            "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
+	$r->print("<p>".&mt('The CODE on the form is [_1]',
+			    "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
                  ."</p>\n");
 	$r->print($message);
 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
@@ -7901,7 +8200,7 @@ 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,$randomorder,$randompick,
                                                 $respnumlookup,$startline);
 
@@ -8011,7 +8310,7 @@ sub questions_to_line_list {
             } else {
                 $first = $first_bubble_line{$responsenum} + 1;
             }
-            $count   = $bubble_lines_per_response{$responsenum};
+	    $count   = $bubble_lines_per_response{$responsenum};
         }
         $last = $first+$count-1;
         push(@lines, ($first..$last));
@@ -8042,6 +8341,7 @@ for multi and missing bubble cases).
                   and value is number of first bubble line for current student
                   or code-based randompick and/or randomorder.
 
+
  Implicit inputs:
    %bubble_lines_per_response   - Starting line numbers for each question.
                                   Numbered from 0 (but question numbers are from
@@ -8094,7 +8394,7 @@ sub prompt_for_corrections {
     } else {
         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
             $responsenum = $respnumlookup->{$question-1};
-            if (ref($startline) eq 'HASH') {
+            if (ref($startline) eq 'HASH') { 
                 $first = $startline->{$question-1};
             }
         } else {
@@ -8112,7 +8412,16 @@ sub prompt_for_corrections {
             ($responsetype_per_response{$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 />');
+            $r->print(
+                &mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$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 />");
         }
@@ -8152,7 +8461,7 @@ sub scantron_bubble_selector {
     my $max=$$scan_config{'Qlength'};
 
     my $scmode=$$scan_config{'Qon'};
-    if ($scmode eq 'number' || $scmode eq 'letter') {
+    if ($scmode eq 'number' || $scmode eq 'letter') { 
         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
             ($$scan_config{'BubblesPerRow'} > 0)) {
             $max=$$scan_config{'BubblesPerRow'};
@@ -8471,7 +8780,7 @@ sub scantron_get_maxbubble {
     my $response_number = 0;
     my $bubble_line     = 0;
     foreach my $resource (@resources) {
-        my $resid = $resource->id();
+        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')) {
@@ -8522,7 +8831,7 @@ 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;
+                $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;  
 	        $response_number++;
 
 	        $bubble_line +=  $lines;
@@ -8603,9 +8912,9 @@ sub scantron_validate_missingbubbles {
     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 =
+	my $scan_record =
             &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
-                                     $randomorder,$randompick,$sequence,\@master_seq,
+				     $randomorder,$randompick,$sequence,\@master_seq,
                                      \%symb_to_resource,\%grader_partids_by_symb,
                                      \%orderedforcode,\%respnumlookup,\%startline);
 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
@@ -8616,36 +8925,36 @@ sub scantron_validate_missingbubbles {
 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
             my $lastbubble;
             if ($missing =~ /^(\d+)\.(\d+)$/) {
-                my $question = $1;
-                my $subquestion = $2;
-                my ($first,$responsenum);
-                if ($randomorder || $randompick) {
-                    $responsenum = $respnumlookup{$question-1};
-                    $first = $startline{$question-1};
-                } else {
-                    $responsenum = $question-1;
-                    $first = $first_bubble_line{$responsenum};
-                }
-                if (!defined($first)) { next; }
-                my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
-                my $subcount = 1;
-                while ($subcount<$subquestion) {
-                    $first += $subans[$subcount-1];
-                    $subcount ++;
-                }
-                my $count = $subans[$subquestion-1];
-                $lastbubble = $first + $count;
+               my $question = $1;
+               my $subquestion = $2;
+               my ($first,$responsenum);
+               if ($randomorder || $randompick) {
+                   $responsenum = $respnumlookup{$question-1};
+                   $first = $startline{$question-1};
+               } else {
+                   $responsenum = $question-1; 
+                   $first = $first_bubble_line{$responsenum};
+               }
+               if (!defined($first)) { next; }
+               my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
+               my $subcount = 1;
+               while ($subcount<$subquestion) {
+                   $first += $subans[$subcount-1];
+                   $subcount ++;
+               }
+               my $count = $subans[$subquestion-1];
+               $lastbubble = $first + $count;
             } else {
-                my ($first,$responsenum);
-                if ($randomorder || $randompick) {
-                    $responsenum = $respnumlookup{$missing-1};
-                    $first = $startline{$missing-1};
-                } else {
-                    $responsenum = $missing-1;
-                    $first = $first_bubble_line{$responsenum};
-                }
-                if (!defined($first)) { next; }
-                $lastbubble = $first + $bubble_lines_per_response{$responsenum};
+               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);
@@ -8708,7 +9017,7 @@ sub scantron_process_students {
     my $default_form_data=&defaultFormData($symb);
 
     my %scantron_config=&Apache::lonnet::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);
@@ -8747,9 +9056,10 @@ sub scantron_process_students {
 SCANTRONFORM
     $r->print($result);
 
+    my ($checksec,@possibles)=&gradable_sections();
     my @delayqueue;
     my (%completedstudents,%scandata);
-    
+
     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
     my $count=&get_todo_count($scanlines,$scan_data);
     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
@@ -8792,7 +9102,7 @@ SCANTRONFORM
         my %startline = ();
         my $total;
  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
- 						 $scan_data,undef,\%idmap,$randomorder,
+                                                 $scan_data,undef,\%idmap,$randomorder,
                                                  $randompick,$sequence,\@master_seq,
                                                  \%symb_to_resource,\%grader_partids_by_symb,
                                                  \%orderedforcode,\%respnumlookup,\%startline,
@@ -8809,6 +9119,13 @@ SCANTRONFORM
  	    next;
  	}
         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
+        if (($checksec ne '') && ($checksec ne $usec)) {
+            unless (grep(/^\Q$usec\E$/,@possibles)) {
+                &scantron_add_delay(\@delayqueue,$line,
+                                    "No role with manage grades privilege in student's section ($usec)",3);
+                next;
+            }
+        }
         my $user = $uname.':'.$usec;
   	($uname,$udom)=split(/:/,$uname);
 
@@ -8822,7 +9139,7 @@ SCANTRONFORM
 
         my @mapresources = @resources;
         if ($randomorder || $randompick) {
-            @mapresources =
+            @mapresources = 
                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
                              \%orderedforcode);
         }
@@ -8911,7 +9228,7 @@ SCANTRONFORM
                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
                                            \@mapresources,\%partids_by_symb,
                                            $bubbles_per_row,$randomorder,$randompick,
-                                           \%respnumlookup,\%startline)
+                                           \%respnumlookup,\%startline) 
                     eq 'ssi_error') {
                     $ssi_error = 0; # So end of handler error message does not trigger.
                     $r->print("</form>");
@@ -9004,7 +9321,7 @@ sub graders_resources_pass {
 =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
+  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 
@@ -9031,7 +9348,7 @@ sub users_order  {
             if (ref($actual_seq) eq 'ARRAY') {
                 @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
                 if (ref($orderedforcode) eq 'HASH') {
-                    if (@mapresources > 0) {
+                    if (@mapresources > 0) { 
                         $orderedforcode->{$scancode} = \@mapresources;
                     }
                 }
@@ -9044,7 +9361,7 @@ sub users_order  {
                                                            $master_seq,
                                                            $user,undef,1);
         if (ref($actual_seq) eq 'ARRAY') {
-            @mapresources =
+            @mapresources = 
                 map { $symb_to_resource->{$_}; } @{$actual_seq};
         }
     }
@@ -9109,7 +9426,7 @@ sub scantron_upload_scantron_data {
 							  'domainid',
 							  'coursename',$dom);
     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
-                       ('&nbsp'x2).&mt('(shows course personnel)');
+                       ('&nbsp'x2).&mt('(shows course personnel)'); 
     my $default_form_data=&defaultFormData($symb);
     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
     &js_escape(\$nofile_alert);
@@ -9190,7 +9507,7 @@ END
             if (keys(%{$domconfig{'scantron'}{'config'}}) > 1) {
                 if (($domconfig{'scantron'}{'config'}{'dat'}) &&
                     (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH')) {
-                    if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
+                    if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {  
                         if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}})) {
                             my ($onclick,$formatextra,$singleline);
                             my @lines = &Apache::lonnet::get_scantronformat_file();
@@ -9203,7 +9520,7 @@ END
                             if ($count > 1) {
                                 $formatextra = '<div style="display:none" id="bubbletype">'.
                                                '<span class="LC_nobreak">'.
-                                               &mt('Bubblesheet type:').'&nbsp;'.
+                                               &mt('Bubblesheet type').':&nbsp;'.
                                                &scantron_scantab().'</span></div>';
                                 $onclick = ' onclick="toggleScantab(this.form);"';
                                 $formatjs = <<"END";
@@ -9264,16 +9581,18 @@ sub scantron_upload_scantron_data_save {
 	'</form>'."\n";
     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 	!&Apache::lonnet::allowed('usc',
-			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
+			    $env{'form.domainid'}.'_'.$env{'form.courseid'}) &&
+        !&Apache::lonnet::allowed('usc',
+                            $env{'form.domainid'}.'_'.$env{'form.courseid'}.'/'.$env{'form.coursesec'})) {
 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
-        unless ($symb) {
+	unless ($symb) {
 	    $r->print($doanotherupload);
 	}
 	return '';
     }
     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
     my $uploadedfile;
-    $r->print('<p>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</p>');
+    $r->print('<p>'.&mt('Uploading file to [_1]','"'.$coursedata{'description'}.'"').'</p>');
     if (length($env{'form.upfile'}) < 2) {
         $r->print(
             &Apache::lonhtmlcommon::confirm_success(
@@ -9313,16 +9632,25 @@ sub scantron_upload_scantron_data_save {
         my $result =
             &Apache::lonnet::userfileupload('upfile','scantron','scantron',$parser,'','',
                                             $env{'form.courseid'},$env{'form.domainid'});
-	if ($result =~ m{^/uploaded/}) {
+        if ($result =~ m{^/uploaded/}) {
             $r->print(
                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
                 &mt('Uploaded [_1] bytes of data into location: [_2]',
                         (length($env{'form.upfile'})-1),
                         '<span class="LC_filename">'.$result.'</span>'));
             ($uploadedfile) = ($result =~ m{/([^/]+)$});
+            if ($uploadedfile =~ /^scantron_orig_/) {
+                my $logname = $uploadedfile;
+                $logname =~ s/^scantron_orig_//;
+                if ($logname ne '') {
+                    my $now = time;
+                    my %info = ($logname => { $now => $env{'user.name'}.':'.$env{'user.domain'} });  
+                    &Apache::lonnet::put('scantronupload',\%info,$env{'form.domainid'},$env{'form.courseid'});
+                }
+            }
             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
-                                                       $env{'form.courseid'},$uploadedfile));
-	} else {
+                                                       $env{'form.courseid'},$symb,$uploadedfile));
+        } else {
             $r->print(
                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
                     &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
@@ -9339,13 +9667,34 @@ sub scantron_upload_scantron_data_save {
 }
 
 sub validate_uploaded_scantron_file {
-    my ($cdom,$cname,$fname) = @_;
+    my ($cdom,$cname,$symb,$fname,$context,$countsref) = @_;
+
     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
     my @lines;
     if ($scanlines ne '-1') {
         @lines=split("\n",$scanlines,-1);
     }
-    my $output;
+    my ($output,$secidx,$checksec,$priv,%crsroleshash,@possibles);
+    $secidx = &Apache::loncoursedata::CL_SECTION();
+    if ($context eq 'download') {
+        $priv = 'mgr';
+    } else {
+        $priv = 'usc';
+    }
+    unless ((&Apache::lonnet::allowed($priv,$env{'request.role.domain'})) ||
+            (($env{'request.course.id'}) &&
+             (&Apache::lonnet::allowed($priv,$env{'request.course.id'})))) {
+        if ($env{'request.course.sec'} ne '') {
+            unless (&Apache::lonnet::allowed($priv,
+                                         "$env{'request.course.id'}/$env{'request.course.sec'}")) {
+                unless ($context eq 'download') {
+                    $output = '<p class="LC_warning">'.&mt('You do not have permission to upload bubblesheet data').'</p>';
+                }
+                return $output;
+            }
+            ($checksec,@possibles)=&gradable_sections();
+        }
+    }
     if (@lines) {
         my (%counts,$max_match_format);
         my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
@@ -9375,6 +9724,8 @@ sub validate_uploaded_scantron_file {
             %{$counts{$key}} = (
                                'found'   => 0,
                                'total'   => 0,
+                               'totalanysec' => 0,
+                               'othersec' => 0,
                               );
             foreach my $line (@lines) {
                 next if ($line =~ /^#/);
@@ -9382,6 +9733,23 @@ sub validate_uploaded_scantron_file {
                 my $id = substr($line,$idstart-1,$idlength);
                 $id = lc($id);
                 if (exists($idmap{$id})) {
+                    if ($checksec ne '') {
+                        $counts{$key}{'totalanysec'} ++;
+                        if (ref($classlist->{$idmap{$id}}) eq 'ARRAY') {
+                            my $stusec = $classlist->{$idmap{$id}}->[$secidx];
+                            if ($stusec ne $checksec) {
+                                if (@possibles) {
+                                    unless (grep(/^\Q$stusec\E$/,@possibles)) {
+                                        $counts{$key}{'othersec'} ++;
+                                        next;
+                                    }
+                                } else {
+                                    $counts{$key}{'othersec'} ++;
+                                    next;
+                                }
+                            }
+                        }
+                    }
                     $counts{$key}{'found'} ++;
                 }
                 $counts{$key}{'total'} ++;
@@ -9396,7 +9764,7 @@ sub validate_uploaded_scantron_file {
                 }
             }
         }
-        if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
+        if ((ref($unique_formats{$max_match_format}) eq 'ARRAY') && ($context ne 'download')) {
             my $format_descs;
             my $numwithformat = @{$unique_formats{$max_match_format}};
             for (my $i=0; $i<$numwithformat; $i++) {
@@ -9441,13 +9809,179 @@ sub validate_uploaded_scantron_file {
                     '<li>'.&mt('The course roster is not up to date.').'</li>'.
                     '</ul>';
             }
+            if (($checksec ne '') && (ref($counts{$max_match_format}) eq 'HASH')) {
+                if ($counts{$max_match_format}{'othersec'}) {
+                    my $percent_nongrade = (100*$counts{$max_match_format}{'othersec'})/($counts{$max_match_format}{'totalanysec'});
+                    my $showpct = sprintf("%.0f",$percent_nongrade).'%';
+                    my $confirmdel = &mt('Are you sure you want to permanently delete this file?');
+                    &js_escape(\$confirmdel);
+                    $output .= '<p class="LC_warning">'.
+                               &mt('Comparison of student IDs in the uploaded file with the course roster found [_1][quant,_2,match,matches][_3] for students in section(s) for which none of your role(s) have privileges to modify grades',
+                                   '<b>',$counts{$max_match_format}{'othersec'},'</b>').
+                               '<br />'.
+                               &mt('Unless you are assigned role(s) which allow modification of grades in additional sections, [_1] of the records in this file will be automatically excluded when you perform bubblesheet grading.','<b>'.$showpct.'</b>').
+                               '</p><p>'.
+                               &mt('If you prefer to delete the file now, use: [_1]').
+                               '<form method="post" name="delupload" action="/adm/grades">'.
+                               '<input type="hidden" name="symb" value="'.$symb.'" />'.
+                               '<input type="hidden" name="domainid" value="'.$cdom.'" />'.
+                               '<input type="hidden" name="courseid" value="'.$cname.'" />'.
+                               '<input type="hidden" name="coursesec" value="'.$env{'request.course.sec'}.'" />'. 
+                               '<input type="hidden" name="uploadedfile" value="'.$fname.'" />'. 
+                               '<input type="hidden" name="command" value="scantronupload_delete" />'.
+                               '<input type="button" name="delbutton" value="'.&mt('Delete Uploaded File').'" onclick="javascript:if (confirm('."'$confirmdel'".')) { document.delupload.submit(); }" />'.
+                               '</form></p>';
+                }
+            }
         }
-    } else {
+        if (($context eq 'download') && ($checksec ne '')) {
+            if ((ref($countsref) eq 'HASH') && (ref($counts{$max_match_format}) eq 'HASH')) {
+                $countsref->{'totalanysec'} = $counts{$max_match_format}{'totalanysec'};
+                $countsref->{'othersec'} = $counts{$max_match_format}{'othersec'};
+            }
+        } 
+    } elsif ($context ne 'download') {
         $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
     }
     return $output;
 }
 
+sub gradable_sections {
+    my $checksec = $env{'request.course.sec'};
+    my @oksecs;
+    if ($checksec) {
+        my %availablesecs = &sections_grade_privs();
+        if (ref($availablesecs{'mgr'}) eq 'ARRAY') {
+            foreach my $sec (@{$availablesecs{'mgr'}}) {
+                unless (grep(/^\Q$sec\E$/,@oksecs)) {
+                    push(@oksecs,$sec);
+                }
+            }
+            if (grep(/^all$/,@oksecs)) {
+                undef($checksec);
+            }
+        }
+    }
+    return($checksec,@oksecs);
+}
+
+sub sections_grade_privs {
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my %availablesecs = (
+                          mgr => [],
+                          vgr => [],
+                          usc => [],
+                        );
+    my $ccrole = 'cc';
+    if ($env{'course.'.$env{'request.course.id'}.'.type'} eq 'Community') {
+        $ccrole = 'co';
+    }
+    my %crsroleshash = &Apache::lonnet::get_my_roles($env{'user.name'},$env{'user.domain'},
+                                                     'userroles',['active'],
+                                                     [$ccrole,'in','cr'],$cdom,1);
+    my $crsid = $cnum.':'.$cdom;
+    foreach my $item (keys(%crsroleshash)) {
+        next unless ($item =~ /^$crsid\:/);
+        my ($crsnum,$crsdom,$role,$sec) = split(/\:/,$item);
+        my $suffix = "/$cdom/$cnum./$cdom/$cnum";
+        if ($sec ne '') {
+            $suffix = "/$cdom/$cnum/$sec./$cdom/$cnum/$sec";
+        }
+        if (($role eq $ccrole) || ($role eq 'in')) {
+            foreach my $priv ('mgr','vgr','usc') { 
+                unless (grep(/^all$/,@{$availablesecs{$priv}})) {
+                    if ($sec eq '') {
+                        $availablesecs{$priv} = ['all'];
+                    } elsif ($sec ne $env{'request.course.sec'}) {
+                        unless (grep(/^\Q$sec\E$/,@{$availablesecs{$priv}})) {
+                            push(@{$availablesecs{$priv}},$sec);
+                        }
+                    }
+                }
+            }
+        } elsif ($role =~ m{^cr/}) {
+            foreach my $priv ('mgr','vgr','usc') {
+                unless (grep(/^all$/,@{$availablesecs{$priv}})) {
+                    if ($env{"user.priv.$role.$suffix"} =~ /:$priv&/) {
+                        if ($sec eq '') {
+                            $availablesecs{$priv} = ['all'];
+                        } elsif ($sec ne $env{'request.course.sec'}) {
+                            unless (grep(/^\Q$sec\E$/,@{$availablesecs{$priv}})) {
+                                push(@{$availablesecs{$priv}},$sec);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return %availablesecs;
+}
+
+sub scantron_upload_delete {
+    my ($r,$symb) = @_;
+    my $filename = $env{'form.uploadedfile'};
+    if ($filename =~ /^scantron_orig_/) {
+        if (&Apache::lonnet::allowed('usc',$env{'form.domainid'}) ||
+            &Apache::lonnet::allowed('usc',
+                                     $env{'form.domainid'}.'_'.$env{'form.courseid'}) ||
+            &Apache::lonnet::allowed('usc',
+                                     $env{'form.domainid'}.'_'.$env{'form.courseid'}.'/'.$env{'form.coursesec'})) {
+            my $uploadurl = '/uploaded/'.$env{'form.domainid'}.'/'.$env{'form.courseid'}.'/'.$env{'form.uploadedfile'};
+            my $retrieval = &Apache::lonnet::getfile($uploadurl);
+            if ($retrieval eq '-1') {
+                $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'.
+                          &mt('File requested for deletion not found.'));
+            } else {
+                $filename =~ s/^scantron_orig_//;
+                if ($filename ne '') {
+                    my ($is_valid,$numleft);
+                    my %info = &Apache::lonnet::get('scantronupload',[$filename],$env{'form.domainid'},$env{'form.courseid'});
+                    if (keys(%info)) {
+                        if (ref($info{$filename}) eq 'HASH') {
+                            foreach my $timestamp (sort(keys(%{$info{$filename}}))) {
+                                if ($info{$filename}{$timestamp} eq $env{'user.name'}.':'.$env{'user.domain'}) {
+                                    $is_valid = 1;
+                                    delete($info{$filename}{$timestamp}); 
+                                }
+                            }
+                            $numleft = scalar(keys(%{$info{$filename}}));
+                        }
+                    }
+                    if ($is_valid) {
+                        my $result = &Apache::lonnet::removeuploadedurl($uploadurl);
+                        if ($result eq 'ok') {
+                            $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion successful')).'<br />');
+                            if ($numleft) {
+                                &Apache::lonnet::put('scantronupload',\%info,$env{'form.domainid'},$env{'form.courseid'});
+                            } else {
+                                &Apache::lonnet::del('scantronupload',[$filename],$env{'form.domainid'},$env{'form.courseid'});
+                            }
+                        } else {
+                            $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'.
+                                      &mt('Result was [_1]',$result));
+                        }
+                    } else {
+                        $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'.
+                                  &mt('File requested for deletion was uploaded by a different user.'));
+                    }
+                } else {
+                    $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'.
+                              &mt('Filename of bubblesheet data file requested for deletion is invalid.'));
+                }
+            }
+        } else {
+            $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'. 
+                      &mt('You are not permitted to delete bubblesheet data files from the requested course.'));
+        }
+    } else {
+        $r->print(&Apache::lonhtmlcommon::confirm_success(&mt('File deletion failed'),1).'<br />'.
+                          &mt('Filename of bubblesheet data file requested for deletion is invalid.'));
+    }
+    return;
+}
+
 sub valid_file {
     my ($requested_file)=@_;
     foreach my $filename (sort(&scantron_filenames())) {
@@ -9470,6 +10004,29 @@ sub scantron_download_scantron_data {
 ');
 	return;
     }
+    my (%uploader,$is_owner,%counts,$percent);
+    my %uploader = &Apache::lonnet::get('scantronupload',[$file],$cdom,$cname);
+    if (ref($uploader{$file}) eq 'HASH') {
+        foreach my $timestamp (sort { $a <=> $b } keys(%{$uploader{$file}})) {
+            if ($uploader{$file}{$timestamp} eq $env{'user.name'}.':'.$env{'user.domain'}) {
+                $is_owner = 1;
+                last;
+            }
+        }
+    }
+    unless ($is_owner) {
+        &validate_uploaded_scantron_file($cdom,$cname,$symb,'scantron_orig_'.$file,'download',\%counts);
+        if ($counts{'totalanysec'}) {
+            my $percent_othersec = (100*$counts{'othersec'})/($counts{'totalanysec'});
+            if ($percent_othersec >= 10) {
+                my $showpct = sprintf("%.0f",$percent_othersec).'%';
+                $r->print('<p class="LC_warning">'.
+                          &mt('The original uploaded file includes [_1] or more of records for students for which none of your roles have rights to modify grades, so files are unavailable for download.',$showpct).
+                          '</p>');
+                return;
+            }
+        }
+    }
     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
@@ -9506,7 +10063,7 @@ sub checkscantron_results {
     my %scantron_config =
         &Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
-    my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
+    my ($scanlines,$scan_data)=&scantron_getfile();
     my $classlist=&Apache::loncoursedata::get_classlist();
     my %idmap=&Apache::grades::username_to_idmap($classlist);
     my $navmap=Apache::lonnavmaps::navmap->new();
@@ -9517,7 +10074,7 @@ sub checkscantron_results {
     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)) {
+    if (ref($map)) { 
         $randomorder=$map->randomorder();
         $randompick=$map->randompick();
     }
@@ -9546,8 +10103,7 @@ sub checkscantron_results {
         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;
 
@@ -9557,8 +10113,7 @@ 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=
@@ -9670,19 +10225,21 @@ sub checkscantron_results {
             }
         }
     }
-    $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('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>',$failed,'</b>')
-             .'</p>');
+             .'</p>'
+    );
     if ($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".
@@ -9847,7 +10404,7 @@ sub grading_menu {
 
     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
                   'command'=>'individual');
-
+    
     my $url1a = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 
     $fields{'command'}='ungraded';
@@ -9861,7 +10418,7 @@ sub grading_menu {
 
     $fields{'command'}='downloadfilesselect';
     my $url1e=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
-    
+
     $fields{'command'} = 'csvform';
     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
     
@@ -9873,37 +10430,47 @@ sub grading_menu {
 
     $fields{'command'} = 'initialverifyreceipt';
     my $url5 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
-    
+
+    my %permissions;
+    if ($perm{'mgr'}) {
+        $permissions{'either'} = 'F';
+        $permissions{'mgr'} = 'F';
+    }
+    if ($perm{'vgr'}) {
+        $permissions{'either'} = 'F';
+        $permissions{'vgr'} = 'F';
+    }
+
     my @menu = ({	categorytitle=>'Hand Grading',
             items =>[
-                        {       linktext => 'Select individual students to grade',
-                                url => $url1a,
-                                permission => 'F',
-                                icon => 'grade_students.png',
-                                linktitle => 'Grade current resource for a selection of students.'
-                        },
+                        {	linktext => 'Select individual students to grade',
+                    		url => $url1a,
+                    		permission => $permissions{'either'}
+                    		icon => 'grade_students.png',
+                    		linktitle => 'Grade current resource for a selection of students.'
+                        }, 
                         {       linktext => 'Grade ungraded submissions',
                                 url => $url1b,
-                                permission => 'F',
+                                permission => $permissions{'either'}
                                 icon => 'ungrade_sub.png',
                                 linktitle => 'Grade all submissions that have not been graded yet.'
                         },
 
                         {       linktext => 'Grading table',
                                 url => $url1c,
-                                permission => 'F',
+                                permission => $permissions{'either'}
                                 icon => 'grading_table.png',
                                 linktitle => 'Grade current resource for all students.'
                         },
                         {       linktext => 'Grade page/folder for one student',
                                 url => $url1d,
-                                permission => 'F',
+                                permission => $permissions{'either'}
                                 icon => 'grade_PageFolder.png',
                                 linktitle => 'Grade all resources in current page/sequence/folder for one student.'
                         },
                         {       linktext => 'Download submissions',
                                 url => $url1e,
-                                permission => 'F',
+                                permission => $permissions{'either'}
                                 icon => 'download_sub.png',
                                 linktitle => 'Download all students submissions.'
                         }]},
@@ -9912,25 +10479,25 @@ sub grading_menu {
 
                 	    {	linktext => 'Upload Scores',
                     		url => $url2,
-                    		permission => 'F',
+                    		permission => $permissions{'mgr'},
                     		icon => 'uploadscores.png',
                     		linktitle => 'Specify a file containing the class scores for current resource.'
                 	    },
                 	    {	linktext => 'Process Clicker',
                     		url => $url3,
-                    		permission => 'F',
+                    		permission => $permissions{'mgr'},
                     		icon => 'addClickerInfoFile.png',
                     		linktitle => 'Specify a file containing the clicker information for this resource.'
                 	    },
                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
                     		url => $url4,
-                    		permission => 'F',
+                    		permission => $permissions{'mgr'},
                     		icon => 'bubblesheet.png',
                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
                 	    },
                             {   linktext => 'Verify Receipt Number',
                                 url => $url5,
-                                permission => 'F',
+                                permission => $permissions{'either'},
                                 icon => 'receipt_number.png',
                                 linktitle => 'Verify a system-generated receipt number for correct problem solution.'
                             }
@@ -9975,12 +10542,13 @@ sub submit_options_table {
     my ($request,$symb) = @_;
     if (!$symb) {return '';}
     &commonJSfunctions($request);
+    my $is_tool = ($symb =~ /ext\.tool$/);
     my $result;
 
     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 
-    $result.=&selectfield(1).
+    $result.=&selectfield(1,$is_tool).
             '<input type="hidden" name="command" value="viewgrades" />
             <div>
               <input type="submit" value="'.&mt('Next').' &rarr;" />
@@ -10012,16 +10580,17 @@ sub submit_options_download {
         }
     }
 
+    my $is_tool = ($symb =~ /ext\.tool$/);
     &commonJSfunctions($request);
 
     my $result='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
-        $table."\n".
-        '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+               $table."\n".
+               '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
     $result.='
 <h2>
   '.&mt('Select Students for whom to Download Submissions').'
-</h2>'.&selectfield(1).'
-                <input type="hidden" name="command" value="downloadfileslink" />
+</h2>'.&selectfield(1,$is_tool).'
+                <input type="hidden" name="command" value="downloadfileslink" /> 
               <input type="submit" value="'.&mt('Next').' &rarr;" />
             </div>
           </div>
@@ -10036,14 +10605,15 @@ sub submit_options {
     my ($request,$symb) = @_;
     if (!$symb) {return '';}
 
+    my $is_tool = ($symb =~ /ext\.tool$/);
     &commonJSfunctions($request);
     my $result;
 
     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
-    $result.=&selectfield(1).'
-                <input type="hidden" name="command" value="submission" />
-              <input type="submit" value="'.&mt('Next').' &rarr;" />
+    $result.=&selectfield(1,$is_tool).'
+                <input type="hidden" name="command" value="submission" /> 
+	      <input type="submit" value="'.&mt('Next').' &rarr;" />
             </div>
           </div>
   </form>';
@@ -10051,26 +10621,33 @@ sub submit_options {
 }
 
 sub selectfield {
-   my ($full)=@_;
-   my %options =
-       (&substatus_options,
-        'select_form_order' => ['yes','queued','graded','incorrect','all']);
+   my ($full,$is_tool)=@_;
+   my %options;
+   if ($is_tool) {
+       %options =
+           (&transtatus_options,
+            'select_form_order' => ['yes','incorrect','all']);
+   } else {
+       %options = 
+           (&substatus_options,
+            'select_form_order' => ['yes','queued','graded','incorrect','all']);
+   }
    my $result='<div class="LC_columnSection">
-
+  
     <fieldset>
       <legend>
        '.&mt('Sections').'
       </legend>
       '.&Apache::lonstatistics::SectionSelect('section','multiple',5).'
     </fieldset>
-
+  
     <fieldset>
       <legend>
         '.&mt('Groups').'
       </legend>
       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
     </fieldset>
- 
+  
     <fieldset>
       <legend>
         '.&mt('Access Status').'
@@ -10078,10 +10655,14 @@ sub selectfield {
       '.&Apache::lonhtmlcommon::StatusOptions(undef,undef,5,undef,'mult').'
     </fieldset>';
     if ($full) {
+        my $heading = &mt('Submission Status');
+        if ($is_tool) {
+            $heading = &mt('Transaction Status');
+        }
         $result.='
     <fieldset>
       <legend>
-        '.&mt('Submission Status').'
+        '.$heading.'
       </legend>'.
        &Apache::loncommon::select_form('all','submitonly',\%options).
    '</fieldset>';
@@ -10114,7 +10695,7 @@ sub reset_perm {
 
 sub init_perm {
     &reset_perm();
-    foreach my $test_perm ('vgr','mgr','opa') {
+    foreach my $test_perm ('vgr','mgr','opa','usc') {
 
 	my $scope = $env{'request.course.id'};
 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
@@ -10241,7 +10822,7 @@ sub process_clicker {
     my $pcorrect=&mt("Percentage points for correct solution");
     my $pincorrect=&mt("Percentage points for incorrect solution");
     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
-                                                   {'iclicker' => 'i>clicker',
+						   {'iclicker' => 'i>clicker',
                                                     'interwrite' => 'interwrite PRS',
                                                     'turning' => 'Turning Technologies'});
     $symb = &Apache::lonenc::check_encrypt($symb);
@@ -10644,6 +11225,7 @@ sub turning_eval {
     return ($errormsg,$number);
 }
 
+
 sub assign_clicker_grades {
     my ($r,$symb) = @_;
     if (!$symb) {return '';}
@@ -10656,7 +11238,7 @@ sub assign_clicker_grades {
 # FIXME: This should probably look for the first handgradeable part
     my $part=$$partlist[0];
 # Start screen output
-    my $result = &Apache::loncommon::start_data_table(). 
+    my $result = &Apache::loncommon::start_data_table().
                  &Apache::loncommon::start_data_table_header_row().
                  '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
                  &Apache::loncommon::end_data_table_header_row().
@@ -10715,7 +11297,7 @@ sub assign_clicker_grades {
                       &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
                       '</span><br />';
           }
-          $users{$user}=1;
+          $users{$user}=1; 
           my @answer=split(/\,/,$env{$key});
           my $sum=0;
           my $realnumber=$number;
@@ -10781,7 +11363,7 @@ sub navmap_errormsg {
 }
 
 sub startpage {
-    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js,$onload,$divforres) = @_;
+    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$head_extra,$onload,$divforres) = @_;
     my %args;
     if ($onload) {
          my %loaditems = (
@@ -10790,22 +11372,25 @@ sub startpage {
          $args{'add_entries'} = \%loaditems;
     }
     if ($nomenu) {
-        $args{'only_body'} = 1;
-        $r->print(&Apache::loncommon::start_page("Student's Version",$js,\%args));
+        $args{'only_body'} = 1; 
+        $r->print(&Apache::loncommon::start_page("Student's Version",$head_extra,\%args));
     } else {
         unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
         $args{'bread_crumbs'} = $crumbs;
-        $r->print(&Apache::loncommon::start_page('Grading',$js,\%args));
+        $r->print(&Apache::loncommon::start_page('Grading',$head_extra,\%args));
+        if ($env{'request.course.id'}) {
+            &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
+        }
     }
     unless ($nodisplayflag) {
-       $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp,$divforres));
+        $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp,$divforres));
     }
 }
 
 sub select_problem {
     my ($r)=@_;
     $r->print('<h3>'.&mt('Select the problem or one of the problems you want to grade').'</h3><form action="/adm/grades">');
-    $r->print(&Apache::lonstathelpers::problem_selector('.',undef,1,undef,undef,1));
+    $r->print(&Apache::lonstathelpers::problem_selector('.',undef,1,undef,undef,1,1));
     $r->print('<input type="hidden" name="command" value="gradingmenu" />');
     $r->print('<input type="submit" value="'.&mt('Next').' &rarr;" /></form>');
 }
@@ -10821,7 +11406,7 @@ sub handler {
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 
 # see what command we need to execute
- 
+
     my @commands=&Apache::loncommon::get_env_multiple('form.command');
     my $command=$commands[0];
 
@@ -10857,11 +11442,11 @@ sub handler {
     if (($symb eq '' || $command eq '') && ($env{'request.course.id'})) {
 #
 # Not called from a resource, but inside a course
-#
+#    
         &startpage($request,undef,[],1,1);
         &select_problem($request);
     } else {
-        if ($command eq 'submission' && $perm{'vgr'}) {
+	if ($command eq 'submission' && $perm{'vgr'}) {
             my ($stuvcurrent,$stuvdisp,$versionform,$js,$onload);
             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
@@ -10875,51 +11460,75 @@ sub handler {
             } else {
                 $divforres = 1;
             }
-            &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js,$onload,$divforres);
+            my $head_extra = $js;
+            unless ($env{'form.vProb'} eq 'no') {
+                my $csslinks = &Apache::loncommon::css_links($symb);
+                if ($csslinks) {
+                    $head_extra .= "\n$csslinks";
+                }
+            }
+            &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,
+                       $stuvcurrent,$stuvdisp,undef,$head_extra,$onload,$divforres);
             if ($versionform) {
                 if ($divforres) {
                     $request->print('<div style="padding:0;clear:both;margin:0;border:0"></div>');
                 }
                 $request->print($versionform);
             }
-            ($env{'form.student'} eq '' ? &listStudents($request,$symb,'',$divforres) : &submission($request,0,0,$symb,$divforres,$command));
+	    ($env{'form.student'} eq '' ? &listStudents($request,$symb,'',$divforres) : &submission($request,0,0,$symb,$divforres,$command));
         } 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);
+            my $head_extra = $js;
+            unless ($env{'form.vProb'} eq 'no') {
+                my $csslinks = &Apache::loncommon::css_links($symb);
+                if ($csslinks) {
+                    $head_extra .= "\n$csslinks";
+                }
+            }
+            &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,
+                       $stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$head_extra);
             if ($versionform) {
                 $request->print($versionform);
             }
             $request->print('<br clear="all" />');
             $request->print(&show_previous_task_version($request,$symb));
-        } elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
+	} elsif ($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);
-            &pickStudentPage($request,$symb);
-        } elsif ($command eq 'displayPage' && $perm{'vgr'}) {
+	    &pickStudentPage($request,$symb);
+	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
+            my $csslinks;
+            unless ($env{'form.vProb'} eq 'no') {
+                $csslinks = &Apache::loncommon::css_links($symb,'map');
+            }
             &startpage($request,$symb,
                                       [{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                                        {href=>'',text=>'Select student'},
-                                       {href=>'',text=>'Grade student'}],1,1);
-            &displayPage($request,$symb);
-        } elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
+                                       {href=>'',text=>'Grade student'}],1,1,undef,undef,undef,$csslinks);
+	    &displayPage($request,$symb);
+	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                                        {href=>'',text=>'Select student'},
                                        {href=>'',text=>'Grade student'},
                                        {href=>'',text=>'Store grades'}],1,1);
-            &updateGradeByPage($request,$symb);
-        } elsif ($command eq 'processGroup' && $perm{'vgr'}) {
+	    &updateGradeByPage($request,$symb);
+	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
+            my $csslinks;
+            unless ($env{'form.vProb'} eq 'no') {
+                $csslinks = &Apache::loncommon::css_links($symb);
+            }
             &startpage($request,$symb,[{href=>'',text=>'...'},
-                                       {href=>'',text=>'Modify grades'}],undef,undef,undef,undef,undef,undef,undef,1);
-            &processGroup($request,$symb);
-        } elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
+                                       {href=>'',text=>'Modify grades'}],undef,undef,undef,undef,undef,$csslinks,undef,1);
+	    &processGroup($request,$symb);
+	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
             &startpage($request,$symb);
-            $request->print(&grading_menu($request,$symb));
-        } elsif ($command eq 'individual' && $perm{'vgr'}) {
+	    $request->print(&grading_menu($request,$symb));
+	} elsif ($command eq 'individual' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>'',text=>'Select individual students to grade'}]);
-            $request->print(&submit_options($request,$symb));
+	    $request->print(&submit_options($request,$symb));
         } elsif ($command eq 'ungraded' && $perm{'vgr'}) {
             my $js = &part_selector_js();
             my $onload = "toggleParts('gradesub');";
@@ -10932,26 +11541,26 @@ sub handler {
         } elsif ($command eq 'all_for_one' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>'',text=>'Grade page/folder for one student'}],1,1);
             $request->print(&submit_options_sequence($request,$symb));
-        } elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
+	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},{href=>'', text=>"Modify grades"}]);
-            $request->print(&viewgrades($request,$symb));
-        } elsif ($command eq 'handgrade' && $perm{'mgr'}) {
+	    $request->print(&viewgrades($request,$symb));
+	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'',text=>'...'},
                                        {href=>'',text=>'Store grades'}]);
-            $request->print(&processHandGrade($request,$symb));
-        } elsif ($command eq 'editgrades' && $perm{'mgr'}) {
+	    $request->print(&processHandGrade($request,$symb));
+	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},
                                        {href=>&href_symb_cmd($symb,'viewgrades').'&group=all&section=all&Status=Active',
                                                                              text=>"Modify grades"},
                                        {href=>'', text=>"Store grades"}]);
-            $request->print(&editgrades($request,$symb));
+	    $request->print(&editgrades($request,$symb));
         } elsif ($command eq 'initialverifyreceipt' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>'',text=>'Verify Receipt Number'}]);
             $request->print(&initialverifyreceipt($request,$symb));
-        } elsif ($command eq 'verify' && $perm{'vgr'}) {
+	} elsif ($command eq 'verify' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"initialverifyreceipt"),text=>'Verify Receipt Number'},
                                        {href=>'',text=>'Verification Result'}]);
-            $request->print(&verifyreceipt($request,$symb));
+	    $request->print(&verifyreceipt($request,$symb));
         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Process clicker'}]);
             $request->print(&process_clicker($request,$symb));
@@ -10964,59 +11573,60 @@ sub handler {
                                        {href=>'', text=>'Process clicker file'},
                                        {href=>'', text=>'Store grades'}]);
             $request->print(&assign_clicker_grades($request,$symb));
-        } elsif ($command eq 'csvform' && $perm{'mgr'}) {
+	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-            $request->print(&upcsvScores_form($request,$symb));
-        } elsif ($command eq 'csvupload' && $perm{'mgr'}) {
+	    $request->print(&upcsvScores_form($request,$symb));
+	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-            $request->print(&csvupload($request,$symb));
-        } elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
+	    $request->print(&csvupload($request,$symb));
+	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-            $request->print(&csvuploadmap($request,$symb));
-        } elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
-            if ($env{'form.associate'} ne 'Reverse Association') {
+	    $request->print(&csvuploadmap($request,$symb));
+	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
+	    if ($env{'form.associate'} ne 'Reverse Association') {
                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-                $request->print(&csvuploadoptions($request,$symb));
-            } else {
-                if ( $env{'form.upfile_associate'} ne 'reverse' ) {
-                    $env{'form.upfile_associate'} = 'reverse';
-                } else {
-                    $env{'form.upfile_associate'} = 'forward';
-                }
+		$request->print(&csvuploadoptions($request,$symb));
+	    } else {
+		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
+		    $env{'form.upfile_associate'} = 'reverse';
+		} else {
+		    $env{'form.upfile_associate'} = 'forward';
+		}
                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-                $request->print(&csvuploadmap($request,$symb));
-            }
-        } elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
+		$request->print(&csvuploadmap($request,$symb));
+	    }
+	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
-            $request->print(&csvuploadassign($request,$symb));
-        } elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
+	    $request->print(&csvuploadassign($request,$symb));
+	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1,
                        undef,undef,undef,undef,'toggleScantab(document.rules);');
-            $request->print(&scantron_selectphase($request,undef,$symb));
-        } elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
+	    $request->print(&scantron_selectphase($request,undef,$symb));
+ 	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
-            $request->print(&scantron_do_warning($request,$symb));
-        } elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
+ 	    $request->print(&scantron_do_warning($request,$symb));
+	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
-            $request->print(&scantron_validate_file($request,$symb));
-        } elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
+	    $request->print(&scantron_validate_file($request,$symb));
+	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
-            $request->print(&scantron_process_students($request,$symb));
-        } elsif ($command eq 'scantronupload' &&
-                 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
-                  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+	    $request->print(&scantron_process_students($request,$symb));
+ 	} elsif ($command eq 'scantronupload' && 
+ 		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) || $perm{'usc'})) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1,
                        undef,undef,undef,undef,'toggleScantab(document.rules);');
-            $request->print(&scantron_upload_scantron_data($request,$symb));
-        } elsif ($command eq 'scantronupload_save' &&
-                 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
-                  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
+ 	    $request->print(&scantron_upload_scantron_data($request,$symb)); 
+ 	} elsif ($command eq 'scantronupload_save' &&
+ 		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) || $perm{'usc'})) {
+            &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+ 	    $request->print(&scantron_upload_scantron_data_save($request,$symb));
+ 	} elsif ($command eq 'scantron_download' && ($perm{'usc'} || $perm{'mgr'})) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
-            $request->print(&scantron_upload_scantron_data_save($request,$symb));
-        } elsif ($command eq 'scantron_download' &&
-                 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+ 	    $request->print(&scantron_download_scantron_data($request,$symb));
+        } elsif ($command eq 'scantronupload_delete' &&
+                 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) || $perm{'usc'})) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
-            $request->print(&scantron_download_scantron_data($request,$symb));
+            &scantron_upload_delete($request,$symb);
         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
             $request->print(&checkscantron_results($request,$symb));
@@ -11033,15 +11643,19 @@ sub handler {
                undef,undef,undef,undef,undef,undef,undef,1);
             $request->print('<div style="padding:0;clear:both;margin:0;border:0"></div>');
             &submit_download_link($request,$symb);
-        } elsif ($command) {
+	} elsif ($command) {
             &startpage($request,$symb,[{href=>'', text=>'Access denied'}]);
-            $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
-        }
+	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
+	}
     }
     if ($ssi_error) {
 	&ssi_print_error($request);
     }
-    $request->print(&Apache::loncommon::end_page());
+    if ($env{'form.inhibitmenu'}) {
+        $request->print(&Apache::loncommon::end_page());
+    } elsif ($env{'request.course.id'}) {
+        &Apache::lonquickgrades::endGradeScreen($request);
+    }
     &reset_caches();
     return OK;
 }
@@ -11065,7 +11679,7 @@ described at http://www.lon-capa.org.
 =head1 OVERVIEW
 
 Do an ssi with retries:
-While I'd love to factor out this with the vesrion in lonprintout,
+While I'd love to factor out this with the version in lonprintout,
 that would either require a data coupling between modules, which I refuse to perpetuate (there's quite enough of that already), or would require the invention of another infrastructure
 I'm not quite ready to invent (e.g. an ssi_with_retry object).
 
@@ -11112,6 +11726,75 @@ 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
@@ -11148,6 +11831,7 @@ ssi_with_retries()
                   or code-based randompick and/or randomorder.
 
 
+
 =item  scantron_get_maxbubble() : 
 
    Arguments:
@@ -11207,7 +11891,12 @@ ssi_with_retries()
 =item  scantron_upload_scantron_data_save() : 
 
    Adds a provided bubble information data file to the course if user
-   has the correct privileges to do so. 
+   has the correct privileges to do so.
+
+= item scantron_upload_delete() :
+
+   Deletes a previously uploaded bubble information data file, if user
+   was the one who uploaded the file, and has the privileges to do so.
 
 =item  valid_file() :
 
@@ -11227,7 +11916,9 @@ 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