--- loncom/homework/grades.pm	2019/02/23 15:18:33	1.760
+++ loncom/homework/grades.pm	2024/12/10 17:04:38	1.803
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.760 2019/02/23 15:18:33 raeburn Exp $
+# $Id: grades.pm,v 1.803 2024/12/10 17:04:38 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -47,10 +47,12 @@ use Apache::lonstathelpers;
 use Apache::lonquickgrades;
 use Apache::bridgetask();
 use Apache::lontexconvert();
+use Apache::loncourserespicker;
 use String::Similarity;
 use HTML::Parser();
 use File::MMagic;
 use LONCAPA;
+use LONCAPA::ltiutils();
 
 use POSIX qw(floor);
 
@@ -65,7 +67,7 @@ my $ssi_retries = 5;
 my $ssi_error;
 my $ssi_error_resource;
 my $ssi_error_message;
-
+my $registered_cleanup;
 
 sub ssi_with_retries {
     my ($resource, $retries, %form) = @_;
@@ -147,7 +149,7 @@ 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 {
     my ($symb,$response_error) = @_;
@@ -165,6 +167,7 @@ sub response_type {
         return;
     }
     my $partlist = $res->parts();
+    my ($numresp,$numessay,$numdropbox) = (0,0,0);
     my %vPart = 
 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
     my (%response_types,%handgrade);
@@ -174,13 +177,20 @@ sub response_type {
 	my @types = $res->responseType($part);
 	my @ids = $res->responseIds($part);
 	for (my $i=0; $i < scalar(@ids); $i++) {
+            $numresp ++;
 	    $response_types{$part}{$ids[$i]} = $types[$i];
+            if ($types[$i] eq 'essay') {
+                $numessay ++;
+                if (&Apache::lonnet::EXT("resource.$part".'_'.$ids[$i].".uploadedfiletypes",$symb)) {
+                    $numdropbox ++;
+                }
+            }
 	    $handgrade{$part.'_'.$ids[$i]} = 
 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
 				     '.handgrade',$symb);
 	}
     }
-    return ($partlist,\%handgrade,\%response_types);
+    return ($partlist,\%handgrade,\%response_types,$numresp,$numessay,$numdropbox);
 }
 
 sub flatten_responseType {
@@ -207,6 +217,129 @@ sub get_display_part {
     return $display;
 }
 
+#--- Show parts and response type
+sub showResourceInfo {
+    my ($symb,$partlist,$responseType,$formname,$checkboxes,$uploads) = @_;
+    unless ((ref($partlist) eq 'ARRAY') && (ref($responseType) eq 'HASH')) {
+        return '<br clear="all">';
+    }
+    my $coltitle = &mt('Problem Part Shown');
+    if ($checkboxes) {
+        $coltitle = &mt('Problem Part');
+    } else {
+        my $checkedparts = 0;
+        foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
+            if (grep(/^\Q$partid\E$/,@{$partlist})) {
+                $checkedparts ++;
+            }
+        }
+        if ($checkedparts == scalar(@{$partlist})) {
+            return '<br clear="all">';
+        }
+        if ($uploads) {
+            $coltitle = &mt('Problem Part Selected');
+        }
+    }
+    my $result = '<div class="LC_left_float" style="display:inline-block;">';
+    if ($checkboxes) {
+        my $legend = &mt('Parts to display');
+        if ($uploads) {
+            $legend = &mt('Part(s) with dropbox');
+        }
+        $result .= '<fieldset style="display:inline-block;"><legend>'.$legend.'</legend>'.
+                   '<span class="LC_nobreak">'.
+                   '<label><input type="radio" name="chooseparts" value="0" onclick="toggleParts('."'$formname'".');" checked="checked" />'.
+                   &mt('All parts').'</label>'.('&nbsp;'x2).
+                   '<label><input type="radio" name="chooseparts" value="1" onclick="toggleParts('."'$formname'".');" />'.
+                   &mt('Selected parts').'</label></span>'.
+                   '<div id="LC_partselector" style="display:none">';
+    }
+    $result .= &Apache::loncommon::start_data_table()
+              .&Apache::loncommon::start_data_table_header_row();
+    if ($checkboxes) {
+        $result .= '<th>'.&mt('Display?').'</th>';
+    }
+    $result .= '<th>'.$coltitle.'</th>'
+              .'<th>'.&mt('Res. ID').'</th>'
+              .'<th>'.&mt('Type').'</th>'
+              .&Apache::loncommon::end_data_table_header_row();
+    my %partsseen;
+    foreach my $partID (sort(keys(%$responseType))) {
+        foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) {
+            my $responsetype = $responseType->{$partID}->{$resID};
+            if ($uploads) {
+                next unless ($responsetype eq 'essay');
+                next unless (&Apache::lonnet::EXT("resource.$partID".'_'."$resID.uploadedfiletypes",$symb));
+            }
+            my $display_part=&get_display_part($partID,$symb);
+            if (exists($partsseen{$partID})) {
+                $result.=&Apache::loncommon::continue_data_table_row();
+            } else {
+                $partsseen{$partID}=scalar(keys(%{$responseType->{$partID}}));
+                $result.=&Apache::loncommon::start_data_table_row().
+                         '<td rowspan="'.$partsseen{$partID}.'" style="vertical-align:middle">';
+                if ($checkboxes) {
+                    $result.='<input type="checkbox" name="vPart" checked="checked" value="'.$partID.'" /></td>'.
+                             '<td rowspan="'.$partsseen{$partID}.'" style="vertical-align:middle">'.$display_part.'</td>';
+                } else {
+                    $result.=$display_part.'</td>';
+                }
+            }
+            $result.='<td>'.'<span class="LC_internal_info">'.$resID.'</span></td>'
+                    .'<td>'.&mt($responsetype).'</td>'
+                    .&Apache::loncommon::end_data_table_row();
+        }
+    }
+    $result.=&Apache::loncommon::end_data_table();
+    if ($checkboxes) {
+        $result .= '</div></fieldset>';
+    }
+    $result .= '</div><div style="padding:0;clear:both;margin:0;border:0"></div>';
+    if (!keys(%partsseen)) {
+        $result = '';
+        if ($uploads) {
+            return '<div style="padding:0;clear:both;margin:0;border:0"></div>'.
+                   '<p class="LC_info">'.
+                    &mt('No dropbox items or essayresponse items with uploadedfiletypes set.').
+                   '</p>';
+        } else {
+            return '<br clear="all" />';
+        }
+    }
+    return $result;
+}
+
+sub part_selector_js {
+    my $js = <<"END";
+function toggleParts(formname) {
+    if (document.getElementById('LC_partselector')) {
+        var index = '';
+        if (document.forms.length) {
+            for (var i=0; i<document.forms.length; i++) {
+                if (document.forms[i].name == formname) {
+                    index = i;
+                    break;
+                }
+            }
+        }
+        if ((index != '') && (document.forms[index].elements['chooseparts'].length > 1)) {
+            for (var i=0; i<document.forms[index].elements['chooseparts'].length; i++) {
+                if (document.forms[index].elements['chooseparts'][i].checked) {
+                   var val = document.forms[index].elements['chooseparts'][i].value;
+                    if (document.forms[index].elements['chooseparts'][i].value == 1) {
+                        document.getElementById('LC_partselector').style.display = 'block';
+                    } else {
+                        document.getElementById('LC_partselector').style.display = 'none';
+                    }
+                }
+            }
+        }
+    }
+}
+END
+    return &Apache::lonhtmlcommon::scripttag($js);
+}
+
 sub reset_caches {
     &reset_analyze_cache();
     &reset_perm();
@@ -315,7 +448,7 @@ sub reset_caches {
                     $add_to_form = { 'code_for_randomlist' => $scancode,};
                 }
             }
-            my $analyze = 
+            my $analyze =
                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
                              undef,undef,undef,$bubbles_per_row);
             if (ref($analyze) eq 'HASH') {
@@ -345,7 +478,7 @@ sub cleanRecord {
     if ($response =~ /^(option|rank)$/) {
 	my %answer=&Apache::lonnet::str2hash($answer);
         my @answer = %answer;
-        %answer = map {&HTML::Entities::encode($_, '"<>&')}  @answer;
+        %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
 	my ($toprow,$bottomrow);
 	foreach my $foil (@$order) {
@@ -363,7 +496,7 @@ sub cleanRecord {
     } elsif ($response eq 'match') {
 	my %answer=&Apache::lonnet::str2hash($answer);
         my @answer = %answer;
-        %answer = map {&HTML::Entities::encode($_, '"<>&')}  @answer;
+        %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
 	my ($toprow,$middlerow,$bottomrow);
@@ -422,7 +555,6 @@ sub cleanRecord {
 	}
         $answer = &Apache::lontexconvert::msgtexconverted($answer);
 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
-
     } elsif ( $response eq 'organic') {
         my $result=&mt('Smile representation: [_1]',
                            '"<tt>'.&HTML::Entities::encode($answer, '"<>&').'</tt>"');
@@ -506,7 +638,7 @@ COMMONJSFUNCTIONS
 #--- Dumps the class list with usernames,list of sections,
 #--- section, ids and fullnames for each user.
 sub getclasslist {
-    my ($getsec,$filterbyaccstatus,$getgroup,$symb,$submitonly,$filterbysubmstatus) = @_;
+    my ($getsec,$filterbyaccstatus,$getgroup,$symb,$submitonly,$filterbysubmstatus,$filterbypbid,$possibles) = @_;
     my @getsec;
     my @getgroup;
     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
@@ -534,12 +666,16 @@ sub getclasslist {
     #
     my %sections;
     my %fullnames;
+    my %passback;
     my ($cdom,$cnum,$partlist);
     if (($filterbysubmstatus) && ($submitonly ne 'all') && ($symb ne '')) {
         $cdom = $env{"course.$env{'request.course.id'}.domain"};
         $cnum = $env{"course.$env{'request.course.id'}.num"};
         my $res_error;
-        ($partlist,my $handgrade,my $responseType) = &response_type($symb,\$res_error);
+        ($partlist) = &response_type($symb,\$res_error);
+    } elsif ($filterbypbid) {
+        $cdom = $env{"course.$env{'request.course.id'}.domain"};
+        $cnum = $env{"course.$env{'request.course.id'}.num"};
     }
     foreach my $student (keys(%$classlist)) {
         my $end      = 
@@ -626,6 +762,27 @@ sub getclasslist {
                 }
             }
         }
+        if ($filterbypbid) {
+            if (ref($possibles) eq 'HASH') {
+                unless (exists($possibles->{$student})) {
+                    delete($classlist->{$student});
+                    next;
+                }
+            }
+            my $udom =
+                $classlist->{$student}->[&Apache::loncoursedata::CL_SDOM()];
+            my $uname =
+                $classlist->{$student}->[&Apache::loncoursedata::CL_SNAME()];
+            if (($udom ne '') && ($uname ne '')) {
+                my %pbinfo = &Apache::lonnet::get('nohist_'.$cdom.'_'.$cnum.'_linkprot_pb',[$filterbypbid],$udom,$uname);
+                if (ref($pbinfo{$filterbypbid}) eq 'ARRAY') {
+                    $passback{$student} = $pbinfo{$filterbypbid};
+                } else {
+                    delete($classlist->{$student});
+                    next;
+                }
+            }
+        }
 	$section = ($section ne '' ? $section : 'none');
 	if (&canview($section)) {
 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
@@ -641,7 +798,7 @@ sub getclasslist {
 	}
     }
     my @sections = sort(keys(%sections));
-    return ($classlist,\@sections,\%fullnames);
+    return ($classlist,\@sections,\%fullnames,\%passback);
 }
 
 sub canmodify {
@@ -655,7 +812,7 @@ sub canmodify {
 		#can modify the requested section
 		return 1;
 	    } else {
-		# can't modify the request section
+		# can't modify the requested section
 		return 0;
 	    }
 	}
@@ -668,19 +825,19 @@ sub canview {
     my ($sec)=@_;
     if ($perm{'vgr'}) {
 	if (!defined($perm{'vgr_section'})) {
-	    # can modify whole class
+	    # can view whole class
 	    return 1;
 	} else {
 	    if ($sec eq $perm{'vgr_section'}) {
-		#can modify the requested section
+		#can view the requested section
 		return 1;
 	    } else {
-		# can't modify the request section
+		# can't view the requested section
 		return 0;
 	    }
 	}
     }
-    #can't modify
+    #can't view
     return 0;
 }
 
@@ -821,14 +978,14 @@ sub initialverifyreceipt {
 
 #--- Check whether a receipt number is valid.---
 sub verifyreceipt {
-    my ($request,$symb)  = @_;
+    my ($request,$symb) = @_;
 
     my $courseid = $env{'request.course.id'};
     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
 	$env{'form.receipt'};
     $receipt     =~ s/[^\-\d]//g;
 
-    my $title.=
+    my $title =
 	'<h3><span class="LC_info">'.
 	&mt('Verifying Receipt Number [_1]',$receipt).
 	'</span></h3>'."\n";
@@ -904,12 +1061,885 @@ sub verifyreceipt {
     return $string;
 }
 
+#-------------------------------------------------------------------
+
+#------------------------------------------- Grade Passback Routines
+#
+
+sub initialpassback {
+    my ($request,$symb) = @_;
+    my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+    my $cnum = $env{"course.$env{'request.course.id'}.num"};
+    my $crstype = &Apache::loncommon::course_type();
+    my %passback = &Apache::lonnet::dump('nohist_linkprot_passback',$cdom,$cnum);
+    my $readonly;
+    unless ($perm{'mgr'}) {
+        $readonly = 1;
+    }
+    my $formname = 'initialpassback';
+    my $navmap = Apache::lonnavmaps::navmap->new();
+    my $output;
+    if (!defined($navmap)) {
+        if ($crstype eq 'Community') {
+            $output = &mt('Unable to retrieve information about community contents');
+        } else {
+            $output = &mt('Unable to retrieve information about course contents');
+        }
+        return '<p>'.$output.'</p>';
+    }
+    return &Apache::loncourserespicker::create_picker($navmap,'passback',$formname,$crstype,undef,
+                                                      undef,undef,undef,undef,undef,undef,
+                                                      \%passback,$readonly);
+}
+
+sub passback_filters {
+    my ($request,$symb) = @_;
+    my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+    my $cnum = $env{"course.$env{'request.course.id'}.num"};
+    my $crstype = &Apache::loncommon::course_type();
+    my ($launcher,$appname,$setter,$linkuri,$linkprotector,$scope,$chosen);
+    if ($env{'form.passback'} ne '') {
+        $chosen = &unescape($env{'form.passback'});
+        ($linkuri,$linkprotector,$scope) = split("\0",$chosen);
+        ($launcher,$appname,$setter) = &get_passback_launcher($cdom,$cnum,$chosen);
+    }
+    my $result;
+    if ($launcher ne '') {
+        $result = &launcher_info_box($launcher,$appname,$setter,$linkuri,$scope).
+                  '<p><br />'.&mt('Set criteria to use to list students for possible passback of scores, then push Next [_1]',
+                                  '&rarr;').
+                  '</p>';
+    }
+    $result .= '<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
+               '<input type="hidden" name="passback" value="'.&escape($chosen).'" />'."\n".
+               '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+    my ($submittext,$newcommand);
+    if ($launcher ne '') {
+        $submittext = &mt('Next').' &rarr;';
+        $newcommand = 'passbacknames';
+        $result .=  &selectfield(0)."\n";
+    } else {
+        $submittext = '&larr; '.&mt('Previous');
+        $newcommand = 'initialpassback';
+        if ($env{'form.passback'}) {
+            $result .= '<span class="LC_warning">'.&mt('Invalid launcher').'</span>'."\n";
+        } else {
+            $result .= '<span class="LC_warning">'.&mt('No launcher selected').'</span>'."\n";
+        }
+    }
+    $result .=  '<input type="hidden" name="command" value="'.$newcommand.'" />'."\n".
+                '<div>'."\n".
+                '<input type="submit" value="'.$submittext.'" />'."\n".
+                '</div>'."\n".
+                '</form>'."\n";
+    return $result;
+}
+
+sub names_for_passback {
+    my ($request,$symb) = @_;
+    my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+    my $cnum = $env{"course.$env{'request.course.id'}.num"};
+    my $crstype = &Apache::loncommon::course_type();
+    my ($launcher,$appname,$setter,$linkuri,$linkprotector,$scope,$chosen);
+    if ($env{'form.passback'} ne '') {
+        $chosen = &unescape($env{'form.passback'});
+        ($linkuri,$linkprotector,$scope) = split("\0",$chosen);
+        ($launcher,$appname,$setter) = &get_passback_launcher($cdom,$cnum,$chosen);
+    }
+    my ($result,$ctr,$newcommand,$submittext);
+    if ($launcher ne '') {
+        $result = &launcher_info_box($launcher,$appname,$setter,$linkuri,$scope);
+    }
+    $ctr = 0;
+    my @statuses = &Apache::loncommon::get_env_multiple('form.Status');
+    my $stu_status = join(':',@statuses);
+    $result .= '<form action="/adm/grades" method="post" name="passbackusers">'."\n".
+               '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
+    if ($launcher ne '') {
+        $result .= '<input type="hidden" name="passback" value="'.&escape($chosen).'" />'."\n".
+                   '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
+        my ($sections,$groups,$group_display,$disabled) = &sections_and_groups();
+        my $section_display = join(' ',@{$sections});
+        my $status_display;
+        if ((grep(/^Any$/,@statuses)) ||
+            (@statuses == 3)) {
+            $status_display = &mt('Any');
+        } else {
+            $status_display = join(' '.&mt('or').' ',map { &mt($_); } @statuses);
+        }
+        $result .= '<p>'.&mt('Student(s) with stored passback credentials for [_1], and also satisfy:',
+                             '<span class="LC_cusr_emph">'.$linkuri.'</span>').
+                   '<ul>'.
+                   '<li>'.&mt('Section(s)').": $section_display</li>\n".
+                   '<li>'.&mt('Group(s)').": $group_display</li>\n".
+                   '<li>'.&mt('Status').": $status_display</li>\n".
+                   '</ul>';
+        my ($classlist,undef,$fullname) = &getclasslist($sections,'1',$groups,'','','',$chosen);
+        if (keys(%$fullname)) {
+            $newcommand = 'passbackscores';
+            $result .= &build_section_inputs().
+                       &checkselect_js('passbackusers').
+                       '<p><br />'.
+                       &mt("To send scores, check box(es) next to the student's name(s), then push 'Send Scores'.").
+                       '</p>'.
+                       &check_script('passbackusers', 'stuinfo')."\n".
+                       '<input type="button" '."\n".
+                       'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
+                       'value="'.&mt('Send Scores').'" /> <br />'."\n".
+                       &check_buttons()."\n".
+                       &Apache::loncommon::start_data_table().
+                       &Apache::loncommon::start_data_table_header_row();
+            my $loop = 0;
+            while ($loop < 2) {
+                $result .= '<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
+                           '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
+                $loop++;
+            }
+            $result .= &Apache::loncommon::end_data_table_header_row()."\n";
+            foreach my $student (sort
+                                 {
+                                     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+                                         return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+                                     }
+                                     return $a cmp $b;
+                                 }
+                                 (keys(%$fullname))) {
+                $ctr++;
+                my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
+                my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
+                my $udom = $classlist->{$student}->[&Apache::loncoursedata::CL_SDOM()];
+                my $uname = $classlist->{$student}->[&Apache::loncoursedata::CL_SNAME()];
+                if ( $perm{'vgr'} eq 'F' ) {
+                    if ($ctr%2 ==1) {
+                        $result.= &Apache::loncommon::start_data_table_row();
+                    }
+                    $result .= '<td align="right">'.$ctr.'&nbsp;</td>'.
+                               '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
+                               $student.':'.$$fullname{$student}.':::SECTION'.$section.
+                               ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
+                               &nameUserString(undef,$$fullname{$student},$uname,$udom).
+                               '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
+
+                    if ($ctr%2 ==0) {
+                        $result .= &Apache::loncommon::end_data_table_row()."\n";
+                    }
+                }
+            }
+            if ($ctr%2 ==1) {
+                $result .= &Apache::loncommon::end_data_table_row();
+            }
+            $result .= &Apache::loncommon::end_data_table()."\n";
+            if ($ctr) {
+                $result .= '<input type="button" '.
+                           'onclick="javascript:checkSelect(this.form.stuinfo);" '.
+                           'value="'.&mt('Send Scores').'" />'."\n";
+            }
+        } else {
+            $submittext = '&larr; '.&mt('Previous');
+            $newcommand = 'passback';
+            $result .= '<span class="LC_warning">'.&mt('No students match the selection criteria').'</p>';
+        }
+    } else {
+        $newcommand = 'initialpassback';
+        $submittext = &mt('Start over');
+        if ($env{'form.passback'}) {
+            $result .= '<span class="LC_warning">'.&mt('Invalid launcher').'</span>'."\n";
+        } else {
+            $result .= '<span class="LC_warning">'.&mt('No launcher selected').'</span>'."\n";
+        }
+    }
+    $result .=  '<input type="hidden" name="command" value="'.$newcommand.'" />'."\n";
+    if (!$ctr) {
+        $result .= '<div>'."\n".
+                   '<input type="submit" value="'.$submittext.'" />'."\n".
+                   '</div>'."\n";
+    }
+    $result .= '</form>'."\n";
+    return $result;
+}
+
+sub do_passback {
+    my ($request,$symb) = @_;
+    my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+    my $cnum = $env{"course.$env{'request.course.id'}.num"};
+    my $crstype = &Apache::loncommon::course_type();
+    my ($launcher,$appname,$setter,$linkuri,$linkprotector,$scope,$chosen);
+    if ($env{'form.passback'} ne '') {
+        $chosen = &unescape($env{'form.passback'});
+        ($linkuri,$linkprotector,$scope) = split("\0",$chosen);
+        ($launcher,$appname,$setter) = &get_passback_launcher($cdom,$cnum,$chosen);
+    }
+    if ($launcher ne '') {
+        $request->print(&launcher_info_box($launcher,$appname,$setter,$linkuri,$scope));
+    }
+    my $error;
+    if ($perm{'mgr'}) {
+        if ($launcher ne '') {
+            my @poss_students = &Apache::loncommon::get_env_multiple('form.stuinfo');
+            if (@poss_students) {
+                my %possibles;
+                foreach my $item (@poss_students) {
+                    my ($stuname,$studom) = split(/:/,$item,3);
+                    $possibles{$stuname.':'.$studom} = 1;
+                }
+                my ($sections,$groups,$group_display,$disabled) = &sections_and_groups();
+                my ($classlist,undef,$fullname,$pbinfo) =
+                    &getclasslist($sections,'1',$groups,'','','',$chosen,\%possibles);
+                if ((ref($classlist) eq 'HASH') && (ref($pbinfo) eq 'HASH')) {
+                    my %passback = %{$pbinfo};
+                    my (%tosend,%remotenotok,%scorenotok,%zeroposs,%nopbinfo);
+                    foreach my $possible (keys(%possibles)) {
+                        if ((exists($classlist->{$possible})) &&
+                            (exists($passback{$possible})) && (ref($passback{$possible}) eq 'ARRAY')) {
+                            $tosend{$possible} = 1;
+                        }
+                    }
+                    if (keys(%tosend)) {
+                        my ($lti_in_use,$crsdef);
+                        my ($ltinum,$ltitype) = ($linkprotector =~ /^(\d+)(c|d)$/);
+                        if ($ltitype eq 'c') {
+                            my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
+                            $lti_in_use = $crslti{$ltinum};
+                            $crsdef = 1;
+                        } else {
+                            my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
+                            $lti_in_use = $domlti{$ltinum};
+                        }
+                        if (ref($lti_in_use) eq 'HASH') {
+                            my $msgformat = $lti_in_use->{'passbackformat'};
+                            my $keynum = $lti_in_use->{'cipher'};
+                            my $scoretype = 'decimal';
+                            if ($lti_in_use->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
+                                $scoretype = $1;
+                            }
+                            my $pbsymb = &Apache::loncommon::symb_from_tinyurl($linkuri,$cnum,$cdom);
+                            my $pbmap;
+                            if ($pbsymb =~ /\.(page|sequence)$/) {
+                                $pbmap = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($pbsymb))[2]);
+                            } else {
+                                $pbmap = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($pbsymb))[0]);
+                            }
+                            $pbmap = &Apache::lonnet::clutter($pbmap);
+                            my $pbscope;
+                            if ($scope eq 'res') {
+                                $pbscope = 'resource';
+                            } elsif ($scope eq 'map') {
+                                $pbscope = 'nonrec';
+                            } elsif ($scope eq 'rec') {
+                                $pbscope = 'map';
+                            }
+                            my %pb = &common_passback_info();
+                            my $numstudents = scalar(keys(%tosend));
+                            my %prog_state = &Apache::lonhtmlcommon::Create_PrgWin($request,$numstudents);
+                            my $outcome = &Apache::loncommon::start_data_table().
+                                         &Apache::loncommon::start_data_table_header_row();
+                            my $loop = 0;
+                            while ($loop < 2) {
+                                $outcome .= '<th>'.&mt('No.').'</th>'.
+                                           '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>'.
+                                           '<th>'.&mt('Score').'</th>';
+                                 $loop++;
+                            }
+                            $outcome .= &Apache::loncommon::end_data_table_header_row()."\n";
+                            my $ctr=0;
+                            foreach my $student (sort
+                                {
+                                     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+                                         return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+                                     }
+                                     return $a cmp $b;
+                                } (keys(%$fullname))) {
+                                next unless ($tosend{$student});
+                                my ($uname,$udom) = split(/:/,$student);
+                                &Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state,'last student');
+                                my ($uname,$udom) = split(/:/,$student);
+                                my $uhome = &Apache::lonnet::homeserver($uname,$udom),
+                                my $id = $passback{$student}[0],
+                                my $url = $passback{$student}[1],
+                                my ($total,$possible,$usec);
+                                if (ref($classlist->{$student}) eq 'ARRAY') {
+                                    $usec = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION];
+                                }
+                                if ($pbscope eq 'resource') {
+                                    $total = 0;
+                                    $possible = 0;
+                                    my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
+                                    if (ref($navmap)) {
+                                        my $res = $navmap->getBySymb($pbsymb);
+                                        if (ref($res)) {
+                                            my $partlist = $res->parts();
+                                            if (ref($partlist) eq 'ARRAY') {
+                                                my %record = &Apache::lonnet::restore($pbsymb,$env{'request.course.id'},$udom,$uname);
+                                                foreach my $part (@{$partlist}) {
+                                                    next if ($record{"resource.$part.solved"} =~/^excused/);
+                                                    my $weight = &Apache::lonnet::EXT("resource.$part.weight",$pbsymb,$udom,$uname,$usec);
+                                                    $possible += $weight;
+                                                    if (($record{'version'}) && (exists($record{"resource.$part.awarded"}))) {
+                                                        my $awarded = $record{"resource.$part.awarded"};
+                                                        if ($awarded) {
+                                                            $total += $weight * $awarded;
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                        }
+                                    }
+                                } elsif (($pbscope eq 'map') || ($pbscope eq 'nonrec')) {
+                                    ($total,$possible) =
+                                        &Apache::lonhomework::get_lti_score($uname,$udom,$pbmap,$pbscope);
+                                }
+                                if (($id ne '') && ($url ne '') && ($possible)) {
+                                    my ($sent,$score,$code,$result) =
+                                        &LONCAPA::ltiutils::send_grade($cdom,$cnum,$crsdef,$pb{'type'},$ltinum,$keynum,$id,
+                                                                       $url,$scoretype,$pb{'sigmethod'},$msgformat,$total,$possible);
+                                    my $no_passback;
+                                    if ($sent) {
+                                        if ($code == 200) {
+                                            delete($tosend{$student});
+                                            my $namespace = $cdom.'_'.$cnum.'_lp_passback';
+                                            my $store = {
+                                                 'score' => $score,
+                                                 'ip' => $pb{'ip'},
+                                                 'host' => $pb{'lonhost'},
+                                                 'protector' => $linkprotector,
+                                                 'deeplink' => $linkuri,
+                                                 'scope' => $scope,
+                                                 'url' => $url,
+                                                 'id' => $id,
+                                                 'clientip' => $pb{'clientip'},
+                                                 'whodoneit' => $env{'user.name'}.':'.$env{'user.domain'},
+                                                };
+                                            my $value='';
+                                            foreach my $key (keys(%{$store})) {
+                                                $value.=&escape($key).'='.&Apache::lonnet::freeze_escape($store->{$key}).'&';
+                                            }
+                                            $value=~s/\&$//;
+                                            &Apache::lonnet::courselog(&escape($linkuri).':'.$uname.':'.$udom.':EXPORT:'.$value);
+                                            &Apache::lonnet::cstore({'score' => $score},$chosen,$namespace,$udom,$uname,'',$pb{'ip'},1);
+                                            $ctr++;
+                                            if ($ctr%2 ==1) {
+                                                $outcome .= &Apache::loncommon::start_data_table_row();
+                                            }
+                                            my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
+                                            my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
+                                            $outcome .= '<td align="right">'.$ctr.'&nbsp;</td>'.
+                                                       '<td>'.&nameUserString(undef,$$fullname{$student},$uname,$udom).
+                                                       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'.
+                                                       '<td>'.$score.'</td>'."\n";
+                                            if ($ctr%2 ==0) {
+                                                $outcome .= &Apache::loncommon::end_data_table_row()."\n";
+                                            }
+                                        } else {
+                                            $remotenotok{$student} = 1;
+                                            $no_passback = "Passback response for ".$linkprotector." was $code ($result)";
+                                            &Apache::lonnet::logthis($no_passback." for $uname:$udom in ${cdom}_${cnum}");
+                                        }
+                                    } else {
+                                        $scorenotok{$student} = 1;
+                                        $no_passback = "Passback of grades not sent for ".$linkprotector;
+                                        &Apache::lonnet::logthis($no_passback." for $uname:$udom in ${cdom}_${cnum}");
+                                    }
+                                    if ($no_passback) {
+                                        &Apache::lonnet::log($udom,$uname,$uhome,$no_passback." score: $score; total: $total; possible: $possible");
+                                        my $ltigrade = {
+                                            'ltinum'   => $ltinum,
+                                            'lti'      => $lti_in_use,
+                                            'crsdef'   => $crsdef,
+                                            'cid'      => $cdom.'_'.$cnum,
+                                            'uname'    => $uname,
+                                            'udom'     => $udom,
+                                            'uhome'    => $uhome,
+                                            'pbid'     => $id,
+                                            'pburl'    => $url,
+                                            'pbtype'   => $pb{'type'},
+                                            'pbscope'  => $pbscope,
+                                            'pbmap'    => $pbmap,
+                                            'pbsymb'   => $pbsymb,
+                                            'format'   => $scoretype,
+                                            'scope'    => $scope,
+                                            'clientip' => $pb{'clientip'},
+                                            'linkprot' => $linkprotector.':'.$linkuri,
+                                            'total'    => $total,
+                                            'possible' => $possible,
+                                            'score'    => $score,
+                                        };
+                                        &Apache::lonnet::put('linkprot_passback_pending',$ltigrade,$cdom,$cnum);
+                                    }
+                                } else {
+                                    if (($id ne '') && ($url ne '')) {
+                                        $zeroposs{$student} = 1;
+                                    } else {
+                                        $nopbinfo{$student} = 1;
+                                    }
+                                }
+                            }
+                            &Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state);
+                            if ($ctr%2 ==1) {
+                                $outcome .= &Apache::loncommon::end_data_table_row();
+                            }
+                            $outcome .= &Apache::loncommon::end_data_table();
+                            if ($ctr) {
+                                $request->print('<p><br />'.&mt('Scores sent to launcher CMS').'</p>'.
+                                                '<p>'.$outcome.'</p>');
+                            } else {
+                                $request->print('<p>'.&mt('No scores sent to launcher CMS').'</p>');
+                            }
+                            if (keys(%tosend)) {
+                                $request->print('<p>'.&mt('No scores sent for following'));
+                                my ($zeros,$nopbcreds,$noconfirm,$noscore);
+                                foreach my $student (sort
+                                {
+                                     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
+                                         return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
+                                     }
+                                     return $a cmp $b;
+                                } (keys(%$fullname))) {
+                                    next unless ($tosend{$student});
+                                    my ($uname,$udom) = split(/:/,$student);
+                                    my $line = '<li>'.&nameUserString(undef,$$fullname{$student},$uname,$udom).'</li>'."\n";
+                                    if ($zeroposs{$student}) {
+                                        $zeros .= $line;
+                                    } elsif ($nopbinfo{$student}) {
+                                        $nopbcreds .= $line;
+                                    } elsif ($remotenotok{$student}) {
+                                        $noconfirm .= $line;
+                                    } elsif ($scorenotok{$student}) {
+                                        $noscore .= $line;
+                                    }
+                                }
+                                if ($zeros) {
+                                    $request->print('<br />'.&mt('Total points possible was 0').':'.
+                                                    '<ul>'.$zeros.'</ul><br />');
+                                }
+                                if ($nopbcreds) {
+                                    $request->print('<br />'.&mt('Missing unique identifier and/or passback location').':'.
+                                                    '<ul>'.$nopbcreds.'</ul><br />');
+                                }
+                                if ($noconfirm) {
+                                    $request->print('<br />'.&mt('Score receipt not confirmed by receiving CMS').':'.
+                                                    '<ul>'.$noconfirm.'</ul><br />');
+                                }
+                                if ($noscore) {
+                                    $request->print('<br />'.&mt('Score computation or transmission failed').':'.
+                                                    '<ul>'.$noscore.'</ul><br />');
+                                }
+                                $request->print('</p>');
+                            }
+                        } else {
+                            $error = &mt('Settings for deep-link launch target unavailable, so no scores were sent');
+                        }
+                    } else {
+                        $error = &mt('No available students for whom scores can be sent.');
+                    }
+                } else {
+                    $error = &mt('Classlist could not be retrieved so no scores were sent.');
+                }
+            } else {
+                $error = &mt('No students selected to receive scores so none were sent.');
+            }
+        } else {
+            if ($env{'form.passback'}) {
+                $error = &mt('Deep-link launch target was invalid so no scores were sent.');
+            } else {
+                $error = &mt('Deep-link launch target was missing so no scores were sent.');
+            }
+        }
+    } else {
+        $error = &mt('You do not have permission to manage grades, so no scores were sent');
+    }
+    if ($error) {
+        $request->print('<p class="LC_info">'.$error.'</p>');
+    }
+    return;
+}
+
+sub get_passback_launcher {
+    my ($cdom,$cnum,$chosen) = @_;
+    my ($linkuri,$linkprotector,$scope) = split("\0",$chosen);
+    my ($ltinum,$ltitype) = ($linkprotector =~ /^(\d+)(c|d)$/);
+    my ($appname,$setter);
+    if ($ltitype eq 'c') {
+        my %lti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
+        if (ref($lti{$ltinum}) eq 'HASH') {
+            $appname = $lti{$ltinum}{'name'};
+            if ($appname) {
+                $setter = ' (defined in course)';
+            }
+        }
+    } elsif ($ltitype eq 'd') {
+        my %lti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
+        if (ref($lti{$ltinum}) eq 'HASH') {
+            $appname = $lti{$ltinum}{'name'};
+            if ($appname) {
+                $setter = ' (defined in domain)';
+            }
+        }
+    }
+    if ($linkuri =~ m{^\Q/tiny/$cdom/\E(\w+)$}) {
+        my $key = $1;
+        my $tinyurl;
+        my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$cdom."\0".$key);
+        if (defined($cached)) {
+            $tinyurl = $result;
+        } else {
+            my $configuname = &Apache::lonnet::get_domainconfiguser($cdom);
+            my %currtiny = &Apache::lonnet::get('tiny',[$key],$cdom,$configuname);
+            if ($currtiny{$key} ne '') {
+                $tinyurl = $currtiny{$key};
+                &Apache::lonnet::do_cache_new('tiny',$cdom."\0".$key,$currtiny{$key},600);
+            }
+        }
+        if ($tinyurl) {
+            my ($crsnum,$launchsymb) = split(/\&/,$tinyurl);
+            if ($crsnum eq $cnum) {
+                my %passback = &Apache::lonnet::get('nohist_linkprot_passback',[$launchsymb],$cdom,$cnum);
+                if (ref($passback{$launchsymb}) eq 'HASH') {
+                    if (exists($passback{$launchsymb}{$chosen})) {
+                        return ($launchsymb,$appname,$setter);
+                    }
+                }
+            }
+        }
+    }
+    return ();
+}
+
+sub sections_and_groups {
+    my (@sections,@groups,$group_display);
+    @groups = &Apache::loncommon::get_env_multiple('form.group');
+    if (grep(/^all$/,@groups)) {
+         @groups = ('all');
+         $group_display = 'all';
+    } elsif (grep(/^none$/,@groups)) {
+         @groups = ('none');
+         $group_display = 'none';
+    } elsif (@groups > 0) {
+         $group_display = join(', ',@groups);
+    }
+    if ($env{'request.course.sec'} ne '') {
+        @sections = ($env{'request.course.sec'});
+    } else {
+        @sections = &Apache::loncommon::get_env_multiple('form.section');
+    }
+    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');
+    }
+    return(\@sections,\@groups,$group_display,$disabled);
+}
+
+sub launcher_info_box {
+    my ($launcher,$appname,$setter,$linkuri,$scope) = @_;
+    my $shownscope;
+    if ($scope eq 'res') {
+        $shownscope = &mt('Resource');
+    } elsif ($scope eq 'map') {
+        $shownscope = &mt('Folder');
+    }  elsif ($scope eq 'rec') {
+        $shownscope = &mt('Folder + sub-folders');
+    }
+    return '<p>'.
+           &Apache::lonhtmlcommon::start_pick_box().
+           &Apache::lonhtmlcommon::row_title(&mt('Launch Item Title')).
+           &Apache::lonnet::gettitle($launcher).
+           &Apache::lonhtmlcommon::row_closure().
+           &Apache::lonhtmlcommon::row_title(&mt('Deep-link')).
+           $linkuri.
+           &Apache::lonhtmlcommon::row_closure().
+           &Apache::lonhtmlcommon::row_title(&mt('Launcher')).
+           $appname.' '.$setter.
+           &Apache::lonhtmlcommon::row_closure().
+           &Apache::lonhtmlcommon::row_title(&mt('Score Type')).
+           $shownscope.      
+           &Apache::lonhtmlcommon::row_closure(1).
+           &Apache::lonhtmlcommon::end_pick_box().'</p>'."\n";
+}
+
+sub passbacks_for_symb {
+    my ($cdom,$cnum,$symb) = @_;
+    my %passback = &Apache::lonnet::dump('nohist_linkprot_passback',$cdom,$cnum);
+    my %needpb;
+    if (keys(%passback)) {
+        my $checkpb = 1;
+        if (exists($passback{$symb})) {
+            if (keys(%passback) == 1) {
+                undef($checkpb);
+            }
+            if (ref($passback{$symb}) eq 'HASH') {
+                foreach my $launcher (keys(%{$passback{$symb}})) {
+                    $needpb{$launcher} = 1;
+                }
+            }
+        }
+        if ($checkpb) {
+            my ($map,$id,$url) = &Apache::lonnet::decode_symb($symb);
+            my $navmap = Apache::lonnavmaps::navmap->new();
+            if (ref($navmap)) {
+                my $mapres = $navmap->getResourceByUrl($map);
+                if (ref($mapres)) {
+                    my $mapsymb = $mapres->symb();
+                    if (exists($passback{$mapsymb})) {
+                        if (keys(%passback) == 1) {
+                            undef($checkpb);
+                        }
+                        if (ref($passback{$mapsymb}) eq 'HASH') {
+                            foreach my $launcher (keys(%{$passback{$mapsymb}})) {
+                                $needpb{$launcher} = 1;
+                            }
+                        }
+                    }
+                    my %posspb;
+                    if ($checkpb) {
+                        my @recurseup = $navmap->recurseup_maps($map,1);
+                        if (@recurseup) {
+                            map { $posspb{$_} = 1; } @recurseup;
+                        }
+                    }
+                    foreach my $key (keys(%passback)) {
+                        if (exists($posspb{$key})) {
+                            if (ref($passback{$key}) eq 'HASH') {
+                                foreach my $launcher (keys(%{$passback{$key}})) {
+                                    my ($linkuri,$linkprotector,$scope) = split("\0",$launcher);
+                                    next unless ($scope eq 'rec');
+                                    $needpb{$launcher} = 1;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return %needpb;
+}
+
+sub process_passbacks {
+    my ($context,$symbs,$cdom,$cnum,$udom,$uname,$usec,$weights,$awardeds,$excuseds,$needpb,
+        $skip_passback,$pbsave,$pbids) = @_;
+    if ((ref($needpb) eq 'HASH') && (ref($skip_passback) eq 'HASH') && (ref($pbsave) eq 'HASH')) {
+        my (%weight,%awarded,%excused);
+        if ((ref($symbs) eq 'ARRAY') && (ref($weights) eq 'HASH') && (ref($awardeds) eq 'HASH') &&
+            (ref($excuseds) eq 'HASH')) {
+            %weight = %{$weights};
+            %awarded = %{$awardeds};
+            %excused = %{$excuseds};
+        }
+        my $uhome = &Apache::lonnet::homeserver($uname,$udom);
+        my @launchers = keys(%{$needpb});
+        my %pbinfo;
+        if (ref($pbids) eq 'HASH') {
+            %pbinfo = %{$pbids};
+        } else {
+            %pbinfo = &Apache::lonnet::get('nohist_'.$cdom.'_'.$cnum.'_linkprot_pb',\@launchers,$udom,$uname);
+        }
+        my %pbc = &common_passback_info();
+        foreach my $launcher (@launchers) {
+            if (ref($pbinfo{$launcher}) eq 'ARRAY') {
+                my $pbid = $pbinfo{$launcher}[0];
+                my $pburl = $pbinfo{$launcher}[1];
+                my (%total_by_symb,%possible_by_symb);
+                if (($pbid ne '') && ($pburl ne '')) {
+                    next if ($skip_passback->{$launcher});
+                    my %pb = %pbc;
+                    if ((exists($pbsave->{$launcher})) &&
+                        (ref($pbsave->{$launcher}) eq 'HASH')) {
+                        foreach my $item ('lti_in_use','crsdef','ltinum','keynum','scoretype','msgformat',
+                                          'symb','map','pbscope','linkuri','linkprotector','scope') {
+                            $pb{$item} = $pbsave->{$launcher}{$item};
+                        }
+                    } else {
+                        my $ltitype;
+                        ($pb{'linkuri'},$pb{'linkprotector'},$pb{'scope'}) = split("\0",$launcher);
+                        ($pb{'ltinum'},$ltitype) = ($pb{'linkprotector'} =~ /^(\d+)(c|d)$/);
+                        if ($ltitype eq 'c') {
+                            my %crslti = &Apache::lonnet::get_course_lti($cnum,$cdom,'provider');
+                            $pb{'lti_in_use'} = $crslti{$pb{'ltinum'}};
+                            $pb{'crsdef'} = 1;
+                        } else {
+                            my %domlti = &Apache::lonnet::get_domain_lti($cdom,'linkprot');
+                            $pb{'lti_in_use'} = $domlti{$pb{'ltinum'}};
+                        }
+                        if (ref($pb{'lti_in_use'}) eq 'HASH') {
+                            $pb{'msgformat'} = $pb{'lti_in_use'}->{'passbackformat'};
+                            $pb{'keynum'} = $pb{'lti_in_use'}->{'cipher'};
+                            $pb{'scoretype'} = 'decimal';
+                            if ($pb{'lti_in_use'}->{'scoreformat'} =~ /^(decimal|ratio|percentage)$/) {
+                                $pb{'scoretype'} = $1;
+                            }
+                            $pb{'symb'} = &Apache::loncommon::symb_from_tinyurl($pb{'linkuri'},$cnum,$cdom);
+                            if ($pb{'symb'} =~ /\.(page|sequence)$/) {
+                                $pb{'map'} = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($pb{'symb'}))[2]);
+                            } else {
+                                $pb{'map'} = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($pb{'symb'}))[0]);
+                            }
+                            $pb{'map'} = &Apache::lonnet::clutter($pb{'map'});
+                            if ($pb{'scope'} eq 'res') {
+                                $pb{'pbscope'} = 'resource';
+                            } elsif ($pb{'scope'} eq 'map') {
+                                $pb{'pbscope'} = 'nonrec';
+                            } elsif ($pb{'scope'} eq 'rec') {
+                                $pb{'pbscope'} = 'map';
+                            }
+                            foreach my $item ('lti_in_use','crsdef','ltinum','keynum','scoretype','msgformat',
+                                              'symb','map','pbscope','linkuri','linkprotector','scope') {
+                                $pbsave->{$launcher}{$item} = $pb{$item};
+                            }
+                        } else {
+                            $skip_passback->{$launcher} = 1;
+                        }
+                    }
+                    if (ref($symbs) eq 'ARRAY') {
+                        foreach my $symb (@{$symbs}) {
+                            if ((ref($weight{$symb}) eq 'HASH') && (ref($awarded{$symb}) eq 'HASH') &&
+                                (ref($excused{$symb}) eq 'HASH')) {
+                                foreach my $part (keys(%{$weight{$symb}})) {
+                                    if ($excused{$symb}{$part}) {
+                                        next;
+                                    }
+                                    my $partweight = $weight{$symb}{$part} eq '' ? 1 :
+                                                     $weight{$symb}{$part};
+                                    if ($awarded{$symb}{$part}) {
+                                        $total_by_symb{$symb} += $partweight * $awarded{$symb}{$part};
+                                    }
+                                    $possible_by_symb{$symb} += $partweight;
+                                }
+                            }
+                        }
+                    }
+                    if ($context eq 'updatebypage') {
+                        my $ltigrade = {
+                                        'ltinum'     => $pb{'ltinum'},
+                                        'lti'        => $pb{'lti_in_use'},
+                                        'crsdef'     => $pb{'crsdef'},
+                                        'cid'        => $cdom.'_'.$cnum,
+                                        'uname'      => $uname,
+                                        'udom'       => $udom,
+                                        'uhome'      => $uhome,
+                                        'usec'       => $usec,
+                                        'pbid'       => $pbid,
+                                        'pburl'      => $pburl,
+                                        'pbtype'     => $pb{'type'},
+                                        'pbscope'    => $pb{'pbscope'},
+                                        'pbmap'      => $pb{'map'},
+                                        'pbsymb'     => $pb{'symb'},
+                                        'format'     => $pb{'scoretype'},
+                                        'scope'      => $pb{'scope'},
+                                        'clientip'   => $pb{'clientip'},
+                                        'linkprot'   => $pb{'linkprotector'}.':'.$pb{'linkuri'},
+                                        'total_s'    => \%total_by_symb,
+                                        'possible_s' => \%possible_by_symb,
+                        };
+                        push(@Apache::grades::ltipassback,$ltigrade);
+                        next;
+                    }
+                    my ($total,$possible);
+                    if ($pb{'pbscope'} eq 'resource') {
+                        $total = $total_by_symb{$pb{'symb'}};
+                        $possible = $possible_by_symb{$pb{'symb'}};
+                    } elsif (($pb{'pbscope'} eq 'map') || ($pb{'pbscope'} eq 'nonrec')) {
+                        ($total,$possible) =
+                            &Apache::lonhomework::get_lti_score($uname,$udom,$pb{'map'},$pb{'pbscope'},
+                                                                \%total_by_symb,\%possible_by_symb);
+                    }
+                    if (!$possible) {
+                        $total = 0;
+                        $possible = 1;
+                    }
+                    my ($sent,$score,$code,$result) =
+                        &LONCAPA::ltiutils::send_grade($cdom,$cnum,$pb{'crsdef'},$pb{'type'},$pb{'ltinum'},
+                                                       $pb{'keynum'},$pbid,$pburl,$pb{'scoretype'},$pb{'sigmethod'},
+                                                       $pb{'msgformat'},$total,$possible);
+                    my $no_passback;
+                    if ($sent) {
+                        if ($code == 200) {
+                            my $namespace = $cdom.'_'.$cnum.'_lp_passback';
+                            my $store = {
+                                'score' => $score,
+                                'ip' => $pb{'ip'},
+                                'host' => $pb{'lonhost'},
+                                'protector' => $pb{'linkprotector'},
+                                'deeplink' => $pb{'linkuri'},
+                                'scope' => $pb{'scope'},
+                                'url' => $pburl,
+                                'id' => $pbid,
+                                'clientip' => $pb{'clientip'},
+                                'whodoneit' => $env{'user.name'}.':'.$env{'user.domain'},
+                            };
+                            my $value='';
+                            foreach my $key (keys(%{$store})) {
+                                 $value.=&escape($key).'='.&Apache::lonnet::freeze_escape($store->{$key}).'&';
+                            }
+                            $value=~s/\&$//;
+                            &Apache::lonnet::courselog(&escape($pb{'linkuri'}).':'.$uname.':'.$udom.':EXPORT:'.$value);
+                            &Apache::lonnet::cstore({'score' => $score},$launcher,$namespace,$udom,$uname,'',$pb{'ip'},1);
+                        } else {
+                            $no_passback = 1;
+                        }
+                    } else {
+                        $no_passback = 1;
+                    }
+                    if ($no_passback) {
+                        &Apache::lonnet::log($udom,$uname,$uhome,$no_passback." score: $score; total: $total; possible: $possible");
+                        my $ltigrade = {
+                           'ltinum'   => $pb{'ltinum'},
+                           'lti'      => $pb{'lti_in_use'},
+                           'crsdef'   => $pb{'crsdef'},
+                           'cid'      => $cdom.'_'.$cnum,
+                           'uname'    => $uname,
+                           'udom'     => $udom,
+                           'uhome'    => $uhome,
+                           'pbid'     => $pbid,
+                           'pburl'    => $pburl,
+                           'pbtype'   => $pb{'type'},
+                           'pbscope'  => $pb{'pbscope'},
+                           'pbmap'    => $pb{'map'},
+                           'pbsymb'   => $pb{'symb'},
+                           'format'   => $pb{'scoretype'},
+                           'scope'    => $pb{'scope'},
+                           'clientip' => $pb{'clientip'},
+                           'linkprot' => $pb{'linkprotector'}.':'.$pb{'linkuri'},
+                           'total'    => $total,
+                           'possible' => $possible,
+                           'score'    => $score,
+                        };
+                        &Apache::lonnet::put('linkprot_passback_pending',$ltigrade,$cdom,$cnum);
+                    }
+                }
+            }
+        }
+    }
+    return;
+}
+
+sub common_passback_info {
+    my %pbc = (
+               sigmethod => 'HMAC-SHA1',
+               type      => 'linkprot',
+               clientip  => &Apache::lonnet::get_requestor_ip(),
+               lonhost   => $Apache::lonnet::perlvar{'lonHostID'},
+               ip        => &Apache::lonnet::get_host_ip($Apache::lonnet::perlvar{'lonHostID'}),
+             );
+    return %pbc;
+}
+
 #--- This is called by a number of programs.
 #--- Called from the Grading Menu - View/Grade an individual student
 #--- Also called directly when one clicks on the subm button 
 #    on the problem page.
 sub listStudents {
-    my ($request,$symb,$submitonly) = @_;
+    my ($request,$symb,$submitonly,$divforres) = @_;
 
     my $is_tool   = ($symb =~ /ext\.tool$/);
     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
@@ -917,42 +1947,27 @@ sub listStudents {
     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
     unless ($submitonly) {
-       $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
+        $submitonly = $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
     }
 
     my $result='';
     my $res_error;
-    my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay) = &response_type($symb,\$res_error);
 
-    my %js_lt = &Apache::lonlocal::texthash (
-		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
-		'single'   => 'Please select the student before clicking on the Next button.',
-	     );
-    &js_escape(\%js_lt);
-    $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
-    function checkSelect(checkBox) {
-	var ctr=0;
-	var sense="";
-	if (checkBox.length > 1) {
-	    for (var i=0; i<checkBox.length; i++) {
-		if (checkBox[i].checked) {
-		    ctr++;
-		}
-	    }
-	    sense = '$js_lt{'multiple'}';
-	} else {
-	    if (checkBox.checked) {
-		ctr = 1;
-	    }
-	    sense = '$js_lt{'single'}';
-	}
-	if (ctr == 0) {
-	    alert(sense);
-	    return false;
-	}
-	document.gradesub.submit();
+    my $table;
+    if (ref($partlist) eq 'ARRAY') {
+        if (scalar(@$partlist) > 1 ) {
+            $table = &showResourceInfo($symb,$partlist,$responseType,'gradesub',1);
+        } elsif ($divforres) {
+            $table = '<div style="padding:0;clear:both;margin:0;border:0"></div>';
+        } else {
+            $table = '<br clear="all" />';
+        }
     }
 
+    $request->print(&checkselect_js());
+    $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
+
     function reLoadList(formname) {
 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
 	formname.command.value = 'submission';
@@ -964,8 +1979,8 @@ LISTJAVASCRIPT
     $request->print($result);
 
     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
-	"\n";
-	
+	"\n".$table;
+
     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
     unless ($is_tool) {
         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
@@ -980,7 +1995,6 @@ LISTJAVASCRIPT
                       .&Apache::lonhtmlcommon::row_closure();
     }
 
-    my $submission_options;
     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
     $env{'form.Status'} = $saveStatus;
@@ -1000,7 +2014,7 @@ LISTJAVASCRIPT
                           all      => 'all submissions with details',
                       );
     }
-    $submission_options.=
+    my $submission_options =
         '<span class="LC_nobreak">'.
         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
         $optiontext{'lastonly'}.' </label></span>'."\n".
@@ -1019,48 +2033,77 @@ LISTJAVASCRIPT
     } else {
         $viewtitle = &mt('View Submissions');
     }
+    my ($compmsg,$nocompmsg);
+    $nocompmsg = ' checked="checked"';
+    if ($numessay) {
+        $compmsg = $nocompmsg;
+        $nocompmsg = '';
+    }
     $gradeTable .= &Apache::lonhtmlcommon::row_title($viewtitle)
-                  .$submission_options
+                  .$submission_options;
+# Check if any gradable
+    my $showmore;
+    if ($perm{'mgr'}) {
+        my @sections;
+        if ($env{'request.course.sec'} ne '') {
+            @sections = ($env{'request.course.sec'});
+        } elsif ($env{'form.section'} eq '') {
+            @sections = ('all');
+        } else {
+            @sections = &Apache::loncommon::get_env_multiple('form.section');
+        }
+        if (grep(/^all$/,@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.' />'
+                  .&mt('No').('&nbsp;'x2).'</label>'
+                  .'<label><input type="radio" name="compmsg" value="1"'.$compmsg.' />'
+                  .&mt('Yes').('&nbsp;'x2).'</label>'
                   .&Apache::lonhtmlcommon::row_closure();
 
-    my $closure;
-    if (($is_tool) && (exists($env{'form.Status'}))) {
-        $closure = 1;
-    }
-    $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
+        $gradeTable .= 
+                   &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
                   .'<select name="increment">'
                   .'<option value="1">'.&mt('Whole Points').'</option>'
                   .'<option value=".5">'.&mt('Half Points').'</option>'
                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
-                  .'</select>'
-                  .&Apache::lonhtmlcommon::row_closure($closure);
-
+                  .'</select>';
+    }
     $gradeTable .= 
         &build_section_inputs().
 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
-
     if (exists($env{'form.Status'})) {
-	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
+	$gradeTable .= '<input type="hidden" name="Status" value="'.$env{'form.Status'}.'" />'."\n";
     } else {
-        if ($is_tool) {
-            $closure = 1;
-        }
-        $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
+        $gradeTable .= &Apache::lonhtmlcommon::row_closure()
+                      .&Apache::lonhtmlcommon::row_title(&mt('Student Status'))
                       .&Apache::lonhtmlcommon::StatusOptions(
-                           $saveStatus,undef,1,'javascript:reLoadList(this.form);')
-                      .&Apache::lonhtmlcommon::row_closure($closure);
+                           $saveStatus,undef,1,'javascript:reLoadList(this.form);');
     }
-
-    unless ($is_tool) {
-        $closure = 1;
-        $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
-                      .'<input type="checkbox" name="checkPlag" checked="checked" />'
-                      .&Apache::lonhtmlcommon::row_closure($closure);
+    if ($numessay) {
+        $gradeTable .= &Apache::lonhtmlcommon::row_closure()
+                      .&Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
+                      .'<input type="checkbox" name="checkPlag" checked="checked" />';
     }
-    $gradeTable .= &Apache::lonhtmlcommon::end_pick_box();
+    $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.");
@@ -1211,11 +2254,59 @@ LISTJAVASCRIPT
     return '';
 }
 
-#---- Called from the listStudents routine
+#---- Called from the listStudents and the names_for_passback routines.
+
+sub checkselect_js {
+    my ($formname) = @_;
+    if ($formname eq '') {
+        $formname = 'gradesub';
+    }
+    my %js_lt;
+    if ($formname eq 'passbackusers') {
+        %js_lt = &Apache::lonlocal::texthash (
+                     'multiple' => 'Please select a student or group of students before pushing the Save Scores button.',
+                     'single'   => 'Please select the student before pushing the Save Scores button.',
+                 );
+    } else {
+        %js_lt = &Apache::lonlocal::texthash (
+                     'multiple' => 'Please select a student or group of students before clicking on the Next button.',
+                     'single'   => 'Please select the student before clicking on the Next button.',
+                 );
+    }
+    &js_escape(\%js_lt);
+    return &Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT);
+
+    function checkSelect(checkBox) {
+        var ctr=0;
+        var sense="";
+        var len = checkBox.length;
+        if (len == undefined) len = 1;
+        if (len > 1) {
+            for (var i=0; i<len; i++) {
+                if (checkBox[i].checked) {
+                    ctr++;
+                }
+            }
+            sense = '$js_lt{'multiple'}';
+        } else {
+            if (checkBox.checked) {
+                ctr = 1;
+            }
+            sense = '$js_lt{'single'}';
+        }
+        if (ctr == 0) {
+            alert(sense);
+            return false;
+        }
+        document.$formname.submit();
+    }
+LISTJAVASCRIPT
+
+}
 
 sub check_script {
-    my ($form, $type)=@_;
-    my $chkallscript= &Apache::lonhtmlcommon::scripttag('
+    my ($form,$type) = @_;
+    my $chkallscript = &Apache::lonhtmlcommon::scripttag('
     function checkall() {
         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
             ele = document.forms.'.$form.'.elements[i];
@@ -1260,7 +2351,7 @@ sub check_buttons {
 
 #     Displays the submissions for one student or a group of students
 sub processGroup {
-    my ($request,$symb)  = @_;
+    my ($request,$symb) = @_;
     my $ctr        = 0;
     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
     my $total      = scalar(@stuchecked)-1;
@@ -1448,8 +2539,8 @@ sub sub_page_js {
 SUBJAVASCRIPT
 }
 
-#--- javascript for essay type problem --
-sub sub_page_kw_js {
+#--- javascript for grading message center
+sub sub_grademessage_js {
     my $request = shift;
     my $iconpath = $request->dir_config('lonIconsURL');
     &commonJSfunctions($request);
@@ -1495,55 +2586,17 @@ sub sub_page_kw_js {
 </script>
 INNERJS
 
-    my $inner_js_highlight_central= (<<INNERJS);
-<script type="text/javascript">
-    function updateChoice(flag) {
-      opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
-      opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
-      opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
-      opener.document.SCORE.refresh.value = "on";
-      if (opener.document.SCORE.keywords.value!=""){
-         opener.document.SCORE.submit();
-      }
-      self.close()
-    }
-</script>
-INNERJS
-
-    my $start_page_msg_central = 
+    my $start_page_msg_central =
         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 				       {'js_ready'  => 1,
 					'only_body' => 1,
 					'bgcolor'   =>'#FFFFFF',});
-    my $end_page_msg_central = 
-	&Apache::loncommon::end_page({'js_ready' => 1});
-
-
-    my $start_page_highlight_central = 
-        &Apache::loncommon::start_page('Highlight Central',
-				       $inner_js_highlight_central,
-				       {'js_ready'  => 1,
-					'only_body' => 1,
-					'bgcolor'   =>'#FFFFFF',});
-    my $end_page_highlight_central = 
+    my $end_page_msg_central =
 	&Apache::loncommon::end_page({'js_ready' => 1});
 
     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
     $docopen=~s/^document\.//;
-    my %js_lt = &Apache::lonlocal::texthash(
-                keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
-                plse => 'Please select a word or group of words from document and then click this link.',
-                adds => 'Add selection to keyword list? Edit if desired.',
-                col1 => 'red',
-                col2 => 'green',
-                col3 => 'blue',
-                siz1 => 'normal',
-                siz2 => '+1',
-                siz3 => '+2',
-                sty1 => 'normal',
-                sty2 => 'italic',
-                sty3 => 'bold',
-             );
+
     my %html_js_lt = &Apache::lonlocal::texthash(
                 comp => 'Compose Message for: ',
                 incl => 'Include',
@@ -1553,29 +2606,11 @@ INNERJS
                 new  => 'New',
                 save => 'Save',
                 canc => 'Cancel',
-                kehi => 'Keyword Highlight Options',
-                txtc => 'Text Color',
-                font => 'Font Size',
-                fnst => 'Font Style',
              );
-    &js_escape(\%js_lt);
     &html_escape(\%html_js_lt);
     &js_escape(\%html_js_lt);
     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
 
-//===================== Show list of keywords ====================
-  function keywords(formname) {
-    var nret = prompt("$js_lt{'keyw'}",formname.keywords.value);
-    if (nret==null) return;
-    formname.keywords.value = nret;
-
-    if (formname.keywords.value != "") {
-	formname.refresh.value = "on";
-	formname.submit();
-    }
-    return;
-  }
-
 //===================== Script to view submitted by ==================
   function viewSubmitter(submitter) {
     document.SCORE.refresh.value = "on";
@@ -1585,26 +2620,6 @@ INNERJS
     return;
   }
 
-//===================== Script to add keyword(s) ==================
-  function getSel() {
-    if (document.getSelection) txt = document.getSelection();
-    else if (document.selection) txt = document.selection.createRange().text;
-    else return;
-    var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
-    if (cleantxt=="") {
-	alert("$js_lt{'plse'}");
-	return;
-    }
-    var nret = prompt("$js_lt{'adds'}",cleantxt);
-    if (nret==null) return;
-    document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
-    if (document.SCORE.keywords.value != "") {
-	document.SCORE.refresh.value = "on";
-	document.SCORE.submit();
-    }
-    return;
-  }
-
 //====================== Script for composing message ==============
    // preload images
    img1 = new Image();
@@ -1715,6 +2730,107 @@ INNERJS
     pDoc.close();
 }
 
+SUBJAVASCRIPT
+}
+
+#--- javascript for essay type problem --
+sub sub_page_kw_js {
+    my $request = shift;
+
+    unless ($env{'form.compmsg'}) {
+        &commonJSfunctions($request);
+    }
+
+    my $inner_js_highlight_central= (<<INNERJS);
+<script type="text/javascript">
+    function updateChoice(flag) {
+      opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
+      opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
+      opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
+      opener.document.SCORE.refresh.value = "on";
+      if (opener.document.SCORE.keywords.value!=""){
+         opener.document.SCORE.submit();
+      }
+      self.close()
+    }
+</script>
+INNERJS
+
+    my $start_page_highlight_central =
+        &Apache::loncommon::start_page('Highlight Central',
+                                       $inner_js_highlight_central,
+                                       {'js_ready'  => 1,
+                                        'only_body' => 1,
+                                        'bgcolor'   =>'#FFFFFF',});
+    my $end_page_highlight_central =
+        &Apache::loncommon::end_page({'js_ready' => 1});
+
+    my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
+    $docopen=~s/^document\.//;
+
+    my %js_lt = &Apache::lonlocal::texthash(
+                keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
+                plse => 'Please select a word or group of words from document and then click this link.',
+                adds => 'Add selection to keyword list? Edit if desired.',
+                col1 => 'red',
+                col2 => 'green',
+                col3 => 'blue',
+                siz1 => 'normal',
+                siz2 => '+1',
+                siz3 => '+2',
+                sty1 => 'normal',
+                sty2 => 'italic',
+                sty3 => 'bold',
+             );
+    my %html_js_lt = &Apache::lonlocal::texthash(
+                save => 'Save',
+                canc => 'Cancel',
+                kehi => 'Keyword Highlight Options',
+                txtc => 'Text Color',
+                font => 'Font Size',
+                fnst => 'Font Style',
+             );
+    &js_escape(\%js_lt);
+    &html_escape(\%html_js_lt);
+    &js_escape(\%html_js_lt);
+    $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
+
+//===================== Show list of keywords ====================
+  function keywords(formname) {
+    var nret = prompt("$js_lt{'keyw'}",formname.keywords.value);
+    if (nret==null) return;
+    formname.keywords.value = nret;
+
+    if (formname.keywords.value != "") {
+        formname.refresh.value = "on";
+        formname.submit();
+    }
+    return;
+  }
+
+//===================== Script to add keyword(s) ==================
+  function getSel() {
+    if (document.getSelection) txt = document.getSelection();
+    else if (document.selection) txt = document.selection.createRange().text;
+    else return;
+    if (typeof(txt) != 'string') {
+        txt = String(txt);
+    }
+    var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
+    if (cleantxt=="") {
+        alert("$js_lt{'plse'}");
+        return;
+    }
+    var nret = prompt("$js_lt{'adds'}",cleantxt);
+    if (nret==null) return;
+    document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
+    if (document.SCORE.keywords.value != "") {
+        document.SCORE.refresh.value = "on";
+        document.SCORE.submit();
+    }
+    return;
+  }
+
 //====================== Script for keyword highlight options ==============
   function kwhighlight() {
     var kwclr    = document.SCORE.kwclr.value;
@@ -1905,7 +3021,8 @@ sub gradeBox {
 
 sub handback_box {
     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error_pointer) = @_;
-    my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error_pointer);
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay) = &response_type($symb,$res_error_pointer);
+    return unless ($numessay);
     my (@respids);
     my @part_response_id = &flatten_responseType($responseType);
     foreach my $part_response_id (@part_response_id) {
@@ -2011,7 +3128,7 @@ sub files_exist {
         my ($uname,$udom,$fullname) = split(/:/,$student);
         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 					      $udom,$uname);
-        my ($string,$timestamp)= &get_last_submission(\%record);
+        my ($string)= &get_last_submission(\%record);
         foreach my $submission (@$string) {
             my ($partid,$respid) =
 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
@@ -2026,8 +3143,8 @@ sub files_exist {
 sub download_all_link {
     my ($r,$symb) = @_;
     unless (&files_exist($r, $symb)) {
-       $r->print(&mt('There are currently no submitted documents.'));
-       return;
+        $r->print(&mt('There are currently no submitted documents.'));
+        return;
     }
     my $all_students = 
 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
@@ -2047,33 +3164,23 @@ sub download_all_link {
 sub submit_download_link {
     my ($request,$symb) = @_;
     if (!$symb) { return ''; }
-#FIXME: Figure out which type of problem this is and provide appropriate download
     my $res_error;
-    my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
-    if (ref($res_error)) {
-        if ($$res_error) {
-            $request->print(&mt('An error occurred retrieving response types'));
-            return;
-        }
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay,$numdropbox) =
+        &response_type($symb,\$res_error);
+    if ($res_error) {
+        $request->print(&mt('An error occurred retrieving response types'));
+        return;
     }
-    my ($numupload,$numessay) = (0,0);
-    if (ref($responseType) eq 'HASH') {
-        foreach my $part (sort(keys(%$responseType))) {
-            foreach my $id (sort(keys(%{ $responseType->{$part} }))) {
-                my $responsetype = $responseType->{$part}->{$id};
-                if ($responsetype eq 'essay') {
-                    my $uploadedfiletypes =
-                        &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes",$symb);
-                    if ($uploadedfiletypes) {
-                        $numupload++;
-                    } else {
-                        $numessay++;
-                    }
-                }
-            }
-        }
+    unless ($numessay) {
+        $request->print(&mt('No essayresponse items found'));
+        return;
     }
-    if (($numupload) || ($numessay)) {
+    my @chosenparts = &Apache::loncommon::get_env_multiple('form.vPart');
+    if (@chosenparts) {
+        $request->print(&showResourceInfo($symb,$partlist,$responseType,
+                                          undef,undef,1));
+    }
+    if ($numessay) {
         my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
         my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
         my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
@@ -2082,10 +3189,12 @@ sub submit_download_link {
             my @students = map { $_.':'.$fullname->{$_} } (keys(%{$fullname}));
             if (@students) {
                 @{$env{'form.stuinfo'}} = @students;
-                if ($numupload) {
+                if ($numdropbox) {
                     &download_all_link($request,$symb);
+                } else {
+                    $request->print(&mt('No essayrespose items with dropbox found'));
                 }
-# FIXME Need to provide a mechanism to download essays, i.e., if $numessay > 0
+# FIXME Need a mechanism to download essays, i.e., if $numessay > $numdropbox
 # Needs to omit user's identity if resource instance is for an anonymous survey.
             } else {
                 $request->print(&mt('No students match the criteria you selected'));
@@ -2114,14 +3223,14 @@ sub build_section_inputs {
 
 # --------------------------- show submissions of a student, option to grade 
 sub submission {
-    my ($request,$counter,$total,$symb) = @_;
+    my ($request,$counter,$total,$symb,$divforres,$calledby) = @_;
     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 
-    my $probtitle=&Apache::lonnet::gettitle($symb); 
     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);
 
@@ -2135,11 +3244,22 @@ sub submission {
 	return;
     }
 
+    my $res_error;
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay) =
+        &response_type($symb,\$res_error);
+    if ($res_error) {
+        $request->print(&navmap_errormsg());
+        return;
+    }
+
     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
     unless ($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;
+    }
     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
     my $checkIcon = '<img alt="'.&mt('Check Mark').
 	'" src="'.$request->dir_config('lonIconsURL').
@@ -2147,8 +3267,17 @@ sub submission {
 
     # header info
     if ($counter == 0) {
+        my @chosenparts = &Apache::loncommon::get_env_multiple('form.vPart');
+        if (@chosenparts) {
+            $request->print(&showResourceInfo($symb,$partlist,$responseType,'gradesub'));
+        } elsif ($divforres) {
+            $request->print('<div style="padding:0;clear:both;margin:0;border:0"></div>');
+        } else {
+            $request->print('<br clear="all" />');
+        }
 	&sub_page_js($request);
-	&sub_page_kw_js($request);
+        &sub_grademessage_js($request) if ($env{'form.compmsg'});
+	&sub_page_kw_js($request) if ($numessay);
 
 	# option to display problem, only once else it cause problems 
         # with the form later since the problem has a form.
@@ -2165,24 +3294,27 @@ sub submission {
 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 	}
 
-	# kwclr is the only variable that is guaranteed not to be blank 
-        # if this subroutine has been called once.
 	my %keyhash = ();
-#	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
-        if (1) {
+	if (($env{'form.kwclr'} eq '' && $numessay) || ($env{'form.compmsg'})) {
 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 					     $env{'course.'.$env{'request.course.id'}.'.num'});
-
+	}
+	# kwclr is the only variable that is guaranteed not to be blank
+	# if this subroutine has been called once.
+	if ($env{'form.kwclr'} eq '' && $numessay) {
 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
-	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
+	}
+	if ($env{'form.compmsg'}) {
+	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ?
 		$keyhash{$symb.'_subject'} : $probtitle;
 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 	}
+
 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
@@ -2196,24 +3328,23 @@ sub submission {
 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
+			'<input type="hidden" name="compmsg"    value="'.$env{'form.compmsg'}.'" />'."\n".
 			&build_section_inputs().
 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 			'<input type="hidden" name="NCT"'.
 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
-#	if ($env{'form.handgrade'} eq 'yes') {
-        if (1) {
+	if ($env{'form.compmsg'}) {
+	    $request->print('<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
+			    '<input type="hidden" name="shownSub" value="0" />'."\n".
+			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
+	}
+	if ($numessay) {
 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
-			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
-			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
-			    '<input type="hidden" name="shownSub" value="0" />'."\n".
-			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
-	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
-		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
-	    }
+			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n");
 	}
-	
+
 	my ($cts,$prnmsg) = (1,'');
 	while ($cts <= $env{'form.savemsgN'}) {
 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
@@ -2226,8 +3357,7 @@ sub submission {
 	}
 	$request->print($prnmsg);
 
-#	if ($env{'form.handgrade'} eq 'yes') {
-        unless ($is_tool) {
+	if ($numessay) {
 
             my %lt = &Apache::lonlocal::texthash(
                           keyh => 'Keyword Highlighting for Essays',
@@ -2235,7 +3365,7 @@ sub submission {
                           list => 'List',
                           past => 'Paste Selection to List',
                           high => 'Highlight Attribute',
-                     );    
+                     );
 #
 # Print out the keyword options line
 #
@@ -2315,12 +3445,6 @@ sub submission {
     }
 
     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
-    my $res_error;
-    my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
-    if ($res_error) {
-        $request->print(&navmap_errormsg());
-        return;
-    }
 
     # Display student info
     $request->print(($counter == 0 ? '' : '<br />'));
@@ -2333,100 +3457,238 @@ sub submission {
               .'<h3 class="LC_hcell">'.$boxtitle.'</h3>';
     $result.='<input type="hidden" name="name'.$counter.
              '" value="'.$env{'form.fullname'}.'" />'."\n";
-#    if ($env{'form.handgrade'} eq 'no') {
-    unless ($is_tool) {
+    if (($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";
     }
 
-    # If any part of the problem is an essay-response (handgraded), then check for collaborators
+    # If any part of the problem is an essayresponse, then check for collaborators
     my $fullname;
     my $col_fullnames = [];
-#    if ($env{'form.handgrade'} eq 'yes') {
-    unless ($is_tool) {
+    if ($numessay) {
 	(my $sub_result,$fullname,$col_fullnames)=
 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 				 $counter);
 	$result.=$sub_result;
     }
     $request->print($result."\n");
-    
+
     # print student answer/submission
-    # Options are (1) Handgraded submission only
-    #             (2) Last submission, includes submission that is not handgraded 
-    #                  (for multi-response type part)
-    #             (3) Last submission plus the parts info
-    #             (4) The whole record for this student
-    
-    my ($string,$timestamp)= &get_last_submission(\%record,$is_tool);
-	
-    my $lastsubonly;
+    # Options are (1) Last submission only
+    #             (2) Last submission (with detailed information for that submission)
+    #             (3) All transactions (by date)
+    #             (4) The whole record (with detailed information for all transactions)
+
+    my ($lastsubonly,$partinfo) =
+        &show_last_submission($uname,$udom,$symb,$essayurl,$responseType,$env{'form.lastSub'},
+                              $is_tool,$fullname,\%record,\%coursedesc_by_cid);
+    $request->print($partinfo);
+    $request->print($lastsubonly);
 
-    if ($$timestamp eq '') {
-        $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
+    if ($env{'form.lastSub'} eq 'datesub') {
+        my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
+	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
+    }
+    if ($env{'form.lastSub'} =~ /^(last|all)$/) {
+        my $identifier = (&canmodify($usec)? $counter : '');
+        $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
+								 $env{'request.course.id'},
+								 $last,'.submission',
+								 'Apache::grades::keywords_highlight',
+                                                                 $usec,$identifier));
+    }
+    $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
+	.$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;
+    } else {
+	$request->print('</div>'."\n");
+    }
+
+    # grading message center
+
+    if ($env{'form.compmsg'}) {
+        my $result='<div class="LC_Box">'.
+                   '<h3 class="LC_hcell">'.&mt('Send Message').'</h3>'.
+                   '<div class="LC_grade_message_center_body">';
+        my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
+        my $msgfor = $givenn.' '.$lastname;
+        if (scalar(@$col_fullnames) > 0) {
+            my $lastone = pop(@$col_fullnames);
+            $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
+        }
+        $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.
+                 ',\''.$msgfor.'\');" target="_self">'.
+                 &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
+                 &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
+                 ' <img src="'.$request->dir_config('lonIconsURL').
+                 '/mailbkgrd.gif" width="14" height="10" alt="" name="mailicon'.$counter.'" />'."\n".
+                 '<br />&nbsp;('.
+                 &mt('Message will be sent when you click on Save &amp; Next below.').")\n".
+                 '</div></div>';
+        $request->print($result);
+    }
+
+    my %seen = ();
+    my @partlist;
+    my @gradePartRespid;
+    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>'
+    );
+    $request->print(&gradeBox_start());
+    foreach my $part_response_id (@part_response_id) {
+    	my ($partid,$respid) = @{ $part_response_id };
+	my $part_resp = join('_',@{ $part_response_id });
+	next if ($seen{$partid} > 0);
+	$seen{$partid}++;
+	push(@partlist,$partid);
+	push(@gradePartRespid,$partid.'.'.$respid);
+	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
+    }
+    $request->print(&gradeBox_end()); # </div>
+    $request->print('</div>');
+
+    $request->print('<div class="LC_grade_info_links">');
+    $request->print('</div>');
+
+    $result='<input type="hidden" name="partlist'.$counter.
+	'" value="'.(join ":",@partlist).'" />'."\n";
+    $result.='<input type="hidden" name="gradePartRespid'.
+	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
+    my $ctr = 0;
+    while ($ctr < scalar(@partlist)) {
+	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
+	    $partlist[$ctr].'" />'."\n";
+	$ctr++;
+    }
+    $request->print($result.''."\n");
+
+# Done with printing info for one student
+
+    $request->print('</div>');#LC_grade_show_user
+
+
+    # print end of form
+    if ($counter == $total) {
+        my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
+	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
+	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
+	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
+	my $ntstu ='<select name="NTSTU">'.
+	    '<option>1</option><option>2</option>'.
+	    '<option>3</option><option>5</option>'.
+	    '<option>7</option><option>10</option></select>'."\n";
+	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
+	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
+        $endform.=&mt('[_1]student(s)',$ntstu);
+	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
+	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
+	    '<input type="button" value="'.&mt('Next').'" '.
+	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
+        $endform.='<span class="LC_warning">'.
+                  &mt('(Next and Previous (student) do not save the scores.)').
+                  '</span>'."\n" ;
+        $endform.="<input type='hidden' value='".&get_increment().
+            "' name='increment' />";
+	$endform.='</td></tr></table></form>';
+	$request->print($endform);
+    }
+    return '';
+}
+
+sub show_last_submission {
+    my ($uname,$udom,$symb,$essayurl,$responseType,$viewtype,$is_tool,$fullname,
+        $record,$coursedesc_by_cid) = @_;
+    my ($string,$timestamp,$lastgradetime,$lastsubmittime) =
+        &get_last_submission($record,$is_tool);
+
+    my ($lastsubonly,$partinfo);
+    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> '.$$timestamp."</div>\n";
+           .'<b>'.&mt('Date Grade Passed Back:').'</b> '.$timestamp."</div>\n";
     } else {
+        my ($shownsubmdate,$showngradedate);
+        if ($lastsubmittime && $lastgradetime) {
+            $shownsubmdate = &Apache::lonlocal::locallocaltime($lastsubmittime);
+            if ($lastgradetime > $lastsubmittime) {
+                 $showngradedate = &Apache::lonlocal::locallocaltime($lastgradetime);
+             }
+        } else {
+            $shownsubmdate = $timestamp;
+        }
         $lastsubonly =
             '<div class="LC_grade_submissions_body">'
-           .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
-
-	my %seenparts;
-	my @part_response_id = &flatten_responseType($responseType);
-	foreach my $part (@part_response_id) {
-	    next if ($env{'form.lastSub'} eq 'hdgrade' 
-			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
+           .'<b>'.&mt('Date Submitted:').'</b> '.$shownsubmdate."\n";
+        if ($showngradedate) {
+            $lastsubonly .= '<br /><b>'.&mt('Date Graded:').'</b> '.$showngradedate."\n";
+        }
 
-	    my ($partid,$respid) = @{ $part };
-	    my $display_part=&get_display_part($partid,$symb);
-	    if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
-		if (exists($seenparts{$partid})) { next; }
-		$seenparts{$partid}=1;
-                $request->print(
+        my %seenparts;
+        my @part_response_id = &flatten_responseType($responseType);
+        foreach my $part (@part_response_id) {
+            my ($partid,$respid) = @{ $part };
+            my $display_part=&get_display_part($partid,$symb);
+            if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
+                if (exists($seenparts{$partid})) { next; }
+                $seenparts{$partid}=1;
+                $partinfo .=
                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
                     ' <b>'.&mt('Collaborative submission by: [_1]',
                                '<a href="javascript:viewSubmitter(\''.
                                $env{"form.$uname:$udom:$partid:submitted_by"}.
                                '\');" target="_self">'.
                                $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
-                    '<br />');
-		next;
-		}
-	    my $responsetype = $responseType->{$partid}->{$respid};
-	    if (!exists($record{"resource.$partid.$respid.submission"})) {
+                    '<br />';
+                next;
+            }
+            my $responsetype = $responseType->{$partid}->{$respid};
+            if (!exists($record->{"resource.$partid.$respid.submission"})) {
                 $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
                     ' <span class="LC_internal_info">'.
                     '('.&mt('Response ID: [_1]',$respid).')'.
                     '</span>&nbsp; &nbsp;'.
-	       	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
-		next;
-	    }
-	    foreach my $submission (@$string) {
-		my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
-		if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
-		my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
-		# Similarity check
+                    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
+                next;
+            }
+            foreach my $submission (@$string) {
+                my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
+                if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
+                my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
+                # Similarity check
                 my $similar='';
                 my ($type,$trial,$rndseed);
                 if ($hide eq 'rand') {
                     $type = 'randomizetry';
-                    $trial = $record{"resource.$partid.tries"};
-                    $rndseed = $record{"resource.$partid.rndseed"};
+                    $trial = $record->{"resource.$partid.tries"};
+                    $rndseed = $record->{"resource.$partid.rndseed"};
                 }
-	        if ($env{'form.checkPlag'}) {
-    		    my ($oname,$odom,$ocrsid,$oessay,$osim)=
-		        &most_similar($uname,$udom,$symb,$subval);
-		    if ($osim) {
-			$osim=int($osim*100.0);
+                if ($env{'form.checkPlag'}) {
+                    my ($oname,$odom,$ocrsid,$oessay,$osim)=
+                    &most_similar($uname,$udom,$symb,$subval);
+                    if ($osim) {
+                        $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 />';
                         } else {
-			    $similar='<hr />';
+                            $similar='<hr />';
                             if ($essayurl eq 'lib/templates/simpleproblem.problem') {
                                 $similar .= '<h3><span class="LC_warning">'.
                                             &mt('Essay is [_1]% similar to an essay by [_2]',
@@ -2436,8 +3698,8 @@ sub submission {
                             } else {
                                 my %old_course_desc;
                                 if ($ocrsid ne '') {
-                                    if (ref($coursedesc_by_cid{$ocrsid}) eq 'HASH') {
-                                        %old_course_desc = %{$coursedesc_by_cid{$ocrsid}};
+                                    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'}) {
@@ -2445,7 +3707,7 @@ sub submission {
                                         }
                                         %old_course_desc =
                                             &Apache::lonnet::coursedescription($ocrsid,$args);
-                                        $coursedesc_by_cid{$ocrsid} = \%old_course_desc;
+                                        $coursedesc_by_cid->{$ocrsid} = \%old_course_desc;
                                     }
                                     $similar .=
                                         '<h3><span class="LC_warning">'.
@@ -2469,21 +3731,21 @@ sub submission {
                                         &keywords_highlight($oessay).
                                         '</i></blockquote><hr />';
                         }
-	            }
-		}
-		my $order=&get_order($partid,$respid,$symb,$uname,$udom,
+                    }
+                }
+                my $order=&get_order($partid,$respid,$symb,$uname,$udom,
                                      undef,$type,$trial,$rndseed);
-                if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' && 
-			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
-		    my $display_part=&get_display_part($partid,$symb);
+                if (($viewtype eq 'lastonly') ||
+                    ($viewtype eq 'datesub')  ||
+                    ($viewtype =~ /^(last|all)$/)) {
+                    my $display_part=&get_display_part($partid,$symb);
                     $lastsubonly.='<div class="LC_grade_submission_part">'.
                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
                         ' <span class="LC_internal_info">'.
                         '('.&mt('Response ID: [_1]',$respid).')'.
                         '</span>&nbsp; &nbsp;';
-		    my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
-                        
-		    if (@$files) {
+                    my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
+                    if (@$files) {
                         if ($hide eq 'anon') {
                             $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
                         } else {
@@ -2494,162 +3756,37 @@ sub submission {
                             } else {
                                 $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
                             }
-                            $lastsubonly .= '</span>';                         
+                            $lastsubonly .= '</span>';
                             foreach my $file (@$files) {
                                 &Apache::lonnet::allowuploaded('/adm/grades',$file);
                                 $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
                             }
                         }
-			$lastsubonly.='<br />';
+                        $lastsubonly.='<br />';
                     }
                     if ($hide eq 'anon') {
-                        $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
+                        $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>';
                     } else {
-             	        $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
+                        $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
                         if ($draft) {
                             $lastsubonly.= ' <span class="LC_warning">'.&mt('Draft Copy').'</span>';
                         }
                         $subval =
-			    &cleanRecord($subval,$responsetype,$symb,$partid,
-					 $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
+                            &cleanRecord($subval,$responsetype,$symb,$partid,
+                                         $respid,$record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
                         if ($responsetype eq 'essay') {
                             $subval =~ s{\n}{<br />}g;
                         }
                         $lastsubonly.=$subval."\n";
                     }
-	            if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
-		    $lastsubonly.='</div>';
-		}
+                    if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
+                    $lastsubonly.='</div>';
+                }
             }
-	}
-	$lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
-    }
-    $request->print($lastsubonly);
-    if ($env{'form.lastSub'} eq 'datesub') {
-        my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
-	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
-  
-    } 
-    if ($env{'form.lastSub'} =~ /^(last|all)$/) {
-        my $identifier = (&canmodify($usec)? $counter : '');
-        $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
-								 $env{'request.course.id'},
-								 $last,'.submission',
-								 'Apache::grades::keywords_highlight',
-                                                                 $usec,$identifier));
-    }
-    $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
-	.$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;
-    } else {
-	$request->print('</div>'."\n");
-    }
-
-    # essay grading message center
-#    if ($env{'form.handgrade'} eq 'yes') {
-    if (1) {
-	my $result='<div class="LC_grade_message_center">';
-    
-	$result.='<div class="LC_grade_message_center_header">'.
-	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
-	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
-	my $msgfor = $givenn.' '.$lastname;
-	if (scalar(@$col_fullnames) > 0) {
-	    my $lastone = pop(@$col_fullnames);
-	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
-	}
-	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
-	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
-	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
-	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
-	    ',\''.$msgfor.'\');" target="_self">'.
-	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
-	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
-	    ' <img src="'.$request->dir_config('lonIconsURL').
-	    '/mailbkgrd.gif" width="14" height="10" alt="" name="mailicon'.$counter.'" />'."\n".
-	    '<br />&nbsp;('.
-	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
-	$result.='</div></div>';
-	$request->print($result);
-    }
-
-    my %seen = ();
-    my @partlist;
-    my @gradePartRespid;
-    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>'
-    );
-    $request->print(&gradeBox_start());
-    foreach my $part_response_id (@part_response_id) {
-    	my ($partid,$respid) = @{ $part_response_id };
-	my $part_resp = join('_',@{ $part_response_id });
-	next if ($seen{$partid} > 0);
-	$seen{$partid}++;
-	next if ($$handgrade{$part_resp} ne 'yes' 
-		 && $env{'form.lastSub'} eq 'hdgrade');
-	push(@partlist,$partid);
-	push(@gradePartRespid,$partid.'.'.$respid);
-	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
-    }
-    $request->print(&gradeBox_end()); # </div>
-    $request->print('</div>');
-
-    $request->print('<div class="LC_grade_info_links">');
-    $request->print('</div>');
-
-    $result='<input type="hidden" name="partlist'.$counter.
-	'" value="'.(join ":",@partlist).'" />'."\n";
-    $result.='<input type="hidden" name="gradePartRespid'.
-	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
-    my $ctr = 0;
-    while ($ctr < scalar(@partlist)) {
-	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
-	    $partlist[$ctr].'" />'."\n";
-	$ctr++;
-    }
-    $request->print($result.''."\n");
-
-# Done with printing info for one student
-
-    $request->print('</div>');#LC_grade_show_user
-
-
-    # print end of form
-    if ($counter == $total) {
-        my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
-	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
-	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
-	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
-	my $ntstu ='<select name="NTSTU">'.
-	    '<option>1</option><option>2</option>'.
-	    '<option>3</option><option>5</option>'.
-	    '<option>7</option><option>10</option></select>'."\n";
-	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
-	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
-        $endform.=&mt('[_1]student(s)',$ntstu);
-	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
-	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
-	    '<input type="button" value="'.&mt('Next').'" '.
-	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
-        $endform.='<span class="LC_warning">'.
-                  &mt('(Next and Previous (student) do not save the scores.)').
-                  '</span>'."\n" ;
-        $endform.="<input type='hidden' value='".&get_increment().
-            "' name='increment' />";
-	$endform.='</td></tr></table></form>';
-	$request->print($endform);
+        }
+        $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
     }
-    return '';
+    return ($lastsubonly,$partinfo);
 }
 
 sub check_collaborators {
@@ -2711,18 +3848,51 @@ sub check_collaborators {
 #--- Retrieve the last submission for all the parts
 sub get_last_submission {
     my ($returnhash,$is_tool)=@_;
-    my (@string,$timestamp,%lasthidden);
+    my (@string,$timestamp,$lastgradetime,$lastsubmittime);
     if ($$returnhash{'version'}) {
 	my %lasthash=();
-	my ($version);
+        my %prevsolved=();
+        my %solved=();
+	my $version;
 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
+            my %handgraded = ();
 	    foreach my $key (sort(split(/\:/,
 					$$returnhash{$version.':keys'}))) {
 		$lasthash{$key}=$$returnhash{$version.':'.$key};
-		$timestamp = 
-		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
+                if ($key =~ /\.([^.]+)\.regrader$/) {
+                    $handgraded{$1} = 1;
+                } elsif ($key =~ /\.portfiles$/) {
+                    if (($$returnhash{$version.':'.$key} ne '') &&
+                        ($$returnhash{$version.':'.$key} !~ /\.\d+\.\w+$/)) {
+                        $lastsubmittime = $$returnhash{$version.':timestamp'};
+                    }
+                } elsif ($key =~ /\.submission$/) {
+                    if ($$returnhash{$version.':'.$key} ne '') {
+                        $lastsubmittime = $$returnhash{$version.':timestamp'};
+                    }
+                } elsif ($key =~ /\.([^.]+)\.solved$/) {
+                    $prevsolved{$1} = $solved{$1};
+                    $solved{$1} = $lasthash{$key};
+                }
+            }
+            foreach my $partid (keys(%handgraded)) {
+                if (($prevsolved{$partid} eq 'ungraded_attempted') &&
+                    (($solved{$partid} eq 'incorrect_by_override') ||
+                     ($solved{$partid} eq 'correct_by_override'))) {
+                    $lastgradetime = $$returnhash{$version.':timestamp'};
+                }
+                if ($solved{$partid} ne '') {
+                    $prevsolved{$partid} = $solved{$partid};
+                }
 	    }
 	}
+#
+# Timestamp is for last transaction for this resource, which does not
+# necessarily correspond to the time of last submission for problem (or part).
+#
+        if ($lasthash{'timestamp'} ne '') {
+            $timestamp = &Apache::lonlocal::locallocaltime($lasthash{'timestamp'});
+        }
         my (%typeparts,%randombytry);
         my $showsurv = 
             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
@@ -2785,7 +3955,7 @@ sub get_last_submission {
 	$string[0] =
 	    '<span class="LC_warning">'.$msg.'</span>';
     }
-    return (\@string,\$timestamp);
+    return (\@string,$timestamp,$lastgradetime,$lastsubmittime);
 }
 
 #--- High light keywords, with style choosen by user.
@@ -2992,13 +4162,33 @@ sub processHandGrade {
     my $ntstu  = $env{'form.NTSTU'};
     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my ($res_error,%queueable);
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay) = &response_type($symb,\$res_error);
+    if ($res_error) {
+        $request->print(&navmap_errormsg());
+        return;
+    } else {
+        foreach my $part (@{$partlist}) {
+            if (ref($responseType->{$part}) eq 'HASH') {
+                foreach my $id (keys(%{$responseType->{$part}})) {
+                    if (($responseType->{$part}->{$id} eq 'essay') ||
+                        (lc($handgrade->{$part.'_'.$id}) eq 'yes')) {
+                        $queueable{$part} = 1;
+                        last;
+                    }
+                }
+            }
+        }
+    }
 
     if ($button eq 'Save & Next') {
+        my %needpb = &passbacks_for_symb($cdom,$cnum,$symb);
+        my (%skip_passback,%pbsave,%pbcollab);
 	my $ctr = 0;
 	while ($ctr < $ngrade) {
 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 	    my ($errorflag,$pts,$wgt,$numhidden) = 
-                &saveHandGrade($request,$symb,$uname,$udom,$ctr);
+                &saveHandGrade($request,$symb,$uname,$udom,$ctr,undef,undef,\%queueable,\%needpb,\%skip_passback,\%pbsave);
 	    if ($errorflag eq 'no_score') {
 		$ctr++;
 		next;
@@ -3051,37 +4241,85 @@ sub processHandGrade {
 		foreach my $collabstr (@collabstrs) {
 		    my ($part,@collaborators) = split(/:/,$collabstr);
 		    foreach my $collaborator (@collaborators) {
-			my ($errorflag,$pts,$wgt) = 
+			my ($errorflag,$pts,$wgt,$numchg,$numupdate) = 
 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
-					   $env{'form.unamedom'.$ctr},$part);
+					   $env{'form.unamedom'.$ctr},$part,\%queueable);
 			if ($errorflag eq 'not_allowed') {
 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 			    next;
-			} elsif ($message ne '') {
-			    my ($baseurl,$showsymb) = 
-				&get_feedurl_and_symb($symb,$collaborator,
-						      $udom);
-			    if ($env{'form.withgrades'.$ctr}) {
-				$messagetail = " for <a href=\"".
-                                    $baseurl."?symb=$showsymb\">$restitle</a>";
+			} else {
+                            if ($numchg || $numupdate) { 
+                                $pbcollab{$collaborator}{$part} = [$pts,$wgt];
+                            }
+                            if ($message ne '') {
+			        my ($baseurl,$showsymb) = 
+				    &get_feedurl_and_symb($symb,$collaborator,
+						          $udom);
+			        if ($env{'form.withgrades'.$ctr}) {
+				    $messagetail = " for <a href=\"".
+                                        $baseurl."?symb=$showsymb\">$restitle</a>";
+			        }
+			        $msgstatus =
+				    &Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 			    }
-			    $msgstatus = 
-				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
-			}
+		        }
 		    }
 		}
 	    }
 	    $ctr++;
 	}
+        if ((keys(%pbcollab)) && (keys(%needpb))) {
+            foreach my $user (keys(%pbcollab)) {
+                my ($clbuname,$clbudom) = split(/:/,$user);
+                my $clbusec = &Apache::lonnet::getsection($clbudom,$clbuname,$cdom.'_'.$cnum); 
+                if (ref($pbcollab{$user}) eq 'HASH') {
+                    my @clparts = keys(%{$pbcollab{$user}});
+                    if (@clparts) {
+                        my $navmap = Apache::lonnavmaps::navmap->new($clbuname,$clbudom,$clbusec);
+                        if (ref($navmap)) {
+                            my $res = $navmap->getBySymb($symb);
+                            if (ref($res)) {
+                                my $partlist = $res->parts();
+                                if (ref($partlist) eq 'ARRAY') {
+                                    my (%weights,%awardeds,%excuseds);
+                                    foreach my $part (@{$partlist}) {
+                                        if ($res->status($part) eq $res->EXCUSED) {
+                                            $excuseds{$symb}{$part} = 1;
+                                        } else { 
+                                            $excuseds{$symb}{$part} = '';
+                                        }
+                                        if ((exists($pbcollab{$user}{$part})) && (ref($pbcollab{$user}{$part}) eq 'ARRAY')) {
+                                            my $pts = $pbcollab{$user}{$part}[0];
+                                            my $wt = $pbcollab{$user}{$part}[1];
+                                            if ($wt) {
+                                                $awardeds{$symb}{$part} = $pts/$wt;
+                                                $weights{$symb}{$part} = $wt;
+                                            } else {
+                                                $awardeds{$symb}{$part} = 0;
+                                                $weights{$symb}{$part} = 0;
+                                            }
+                                        } else {
+                                            $awardeds{$symb}{$part} = $res->awarded($part);
+                                            $weights{$symb}{$part} = $res->weight($part);
+                                        }
+                                    }
+                                    &process_passbacks('handgrade',[$symb],$cdom,$cnum,$clbudom,$clbuname,$clbusec,\%weights,
+                                                       \%awardeds,\%excuseds,\%needpb,\%skip_passback,\%pbsave);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
     }
 
-#    if ($env{'form.handgrade'} eq 'yes') {
-    if (1) {
+    my %keyhash = ();
+    if ($numessay) {
 	# Keywords sorted in alphabatical order
 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
-	my %keyhash = ();
 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
-	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
+	$env{'form.keywords'}           =~ s/^\s+|\s+$//g;
 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 	$env{'form.keywords'} = join(' ',@keywords);
 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
@@ -3089,7 +4327,9 @@ sub processHandGrade {
 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
+    }
 
+    if ($env{'form.compmsg'}) {
 	# message center - Order of message gets changed. Blank line is eliminated.
 	# New messages are saved in env for the next student.
 	# All messages are saved in nohist_handgrade.db
@@ -3104,17 +4344,20 @@ 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++;
 	}
 	$env{'form.savemsgN'} = --$idx;
 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
-	my $putresult = &Apache::lonnet::put
-	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
     }
+    if (($numessay) || ($env{'form.compmsg'})) {
+        my $putresult = &Apache::lonnet::put
+            ('nohist_handgrade',\%keyhash,$cdom,$cnum);
+    }
+
     # Called by Save & Refresh from Highlight Attribute Window
     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
     if ($env{'form.refresh'} eq 'on') {
@@ -3154,7 +4397,6 @@ sub processHandGrade {
 		 }
 		 return $a cmp $b;
 	     } (keys(%$fullname))) {
-# FIXME: this is fishy, looks like the button label
 	if ($nextflg == 1 && $button =~ /Next$/) {
 	    push(@parsedlist,$item);
 	}
@@ -3165,14 +4407,7 @@ sub processHandGrade {
 	}
     }
     $ctr = 0;
-# FIXME: this is fishy, looks like the button label
     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
-    my $res_error;
-    my ($partlist) = &response_type($symb,\$res_error);
-    if ($res_error) {
-        $request->print(&navmap_errormsg());
-        return;
-    }
     foreach my $student (@parsedlist) {
 	my $submitonly=$env{'form.submitonly'};
 	my ($uname,$udom) = split(/:/,$student);
@@ -3230,7 +4465,7 @@ sub processHandGrade {
 
 #---- Save the score and award for each student, if changed
 sub saveHandGrade {
-    my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
+    my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part,$queueable,$needpb,$skip_passback,$pbsave) = @_;
     my @version_parts;
     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 					   $env{'request.course.id'});
@@ -3238,7 +4473,7 @@ sub saveHandGrade {
     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
     my @parts_graded;
     my %newrecord  = ();
-    my ($pts,$wgt,$totchg) = ('','',0);
+    my ($pts,$wgt,$totchg,$sendupdate) = ('','',0,0);
     my %aggregate = ();
     my $aggregateflag = 0;
     if ($env{'form.HIDE'.$newflg}) {
@@ -3246,18 +4481,27 @@ sub saveHandGrade {
         my $numchgs = &makehidden($version,$parts,\%record,$symb,$domain,$stuname,1);
         $totchg += $numchgs;
     }
+    my (%weights,%awardeds,%excuseds);
     my @parts = split(/:/,$env{'form.partlist'.$newflg});
     foreach my $new_part (@parts) {
-	#collaborator ($submi may vary for different parts
+	#collaborator ($submitter may vary for different parts)
 	if ($submitter && $new_part ne $part) { next; }
 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
+        if ($env{'form.WGT'.$newflg.'_'.$new_part} eq '') {
+            $weights{$symb}{$new_part} = 1;
+        } else {
+            $weights{$symb}{$new_part} = $env{'form.WGT'.$newflg.'_'.$new_part};
+        }
 	if ($dropMenu eq 'excused') {
+            $excuseds{$symb}{$new_part} = 1;
+            $awardeds{$symb}{$new_part} = '';
 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 		}
 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
+                $sendupdate ++;
 	    }
 	} elsif ($dropMenu eq 'reset status'
 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
@@ -3281,6 +4525,9 @@ sub saveHandGrade {
                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                 $aggregateflag = 1;
             }
+            $sendupdate ++;
+            $excuseds{$symb}{$new_part} = '';
+            $awardeds{$symb}{$new_part} = '';
 	} elsif ($dropMenu eq '') {
 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
@@ -3291,12 +4538,15 @@ sub saveHandGrade {
 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 		$env{'form.WGT'.$newflg.'_'.$new_part};
 	    my $partial= $pts/$wgt;
+            $awardeds{$symb}{$new_part} = $partial;
+            $excuseds{$symb}{$new_part} = '';
 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 		#do not update score for part if not changed.
                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 		next;
 	    } else {
 	        push(@parts_graded,$new_part);
+                $sendupdate ++;
 	    }
 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
@@ -3342,13 +4592,20 @@ sub saveHandGrade {
 	&Apache::lonnet::cstore(\%newrecord,$symb,
 				$env{'request.course.id'},$domain,$stuname);
 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
-				     $cdom,$cnum,$domain,$stuname);
+				     $cdom,$cnum,$domain,$stuname,$queueable);
     }
     if ($aggregateflag) {
         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 			      $cdom,$cnum);
     }
-    return ('',$pts,$wgt,$totchg);
+    if (($sendupdate || $totchg) && (!$submitter)) {
+        if ((ref($needpb) eq 'HASH') &&
+            (keys(%{$needpb}))) {
+            &process_passbacks('handgrade',[$symb],$cdom,$cnum,$domain,$stuname,$usec,\%weights,
+                               \%awardeds,\%excuseds,$needpb,$skip_passback,$pbsave);
+        }
+    }
+    return ('',$pts,$wgt,$totchg,$sendupdate);
 }
 
 sub makehidden {
@@ -3382,7 +4639,7 @@ sub makehidden {
 }
 
 sub check_and_remove_from_queue {
-    my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
+    my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname,$queueable) = @_;
     my @ungraded_parts;
     foreach my $part (@{$parts}) {
 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
@@ -3390,7 +4647,9 @@ sub check_and_remove_from_queue {
 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 		) {
-	    push(@ungraded_parts, $part);
+            if ($queueable->{$part}) {
+	        push(@ungraded_parts, $part);
+            }
 	}
     }
     if ( !@ungraded_parts ) {
@@ -3425,7 +4684,7 @@ sub handback_files {
 		        &Apache::lonnet::file_name_version_ext($answer_file);
 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
                     my $getpropath = 1;
-                    my ($dir_list,$listerror) = 
+                    my ($dir_list,$listerror) =
                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
                                                  $domain,$stuname,$getpropath);
 		    my $version = &Apache::lonnet::get_next_version($answer_name,$answer_ext,$dir_list);
@@ -3589,8 +4848,8 @@ sub version_portfiles {
             $$record{$key} = join(',',@versioned_portfiles);
             push(@returned_keys,$key);
         }
-    } 
-    return (@returned_keys);   
+    }
+    return (@returned_keys);
 }
 
 #--------------------------------------------------------------------------------------
@@ -3809,7 +5068,26 @@ 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) {
@@ -3885,7 +5163,6 @@ sub viewgrades {
 	my $part_resp = join('_',@{ $part_response_id });
 	next if $seen{$partid};
 	$seen{$partid}++;
-#	my $handgrade=$$handgrade{$part_resp};
 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 
@@ -4002,7 +5279,7 @@ sub viewgrades {
     }
     $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'));
@@ -4199,7 +5476,7 @@ sub editgrades {
 
     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
-    $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
+    $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
 
     my $result= &Apache::loncommon::start_data_table().
 	&Apache::loncommon::start_data_table_header_row().
@@ -4215,6 +5492,10 @@ sub editgrades {
 		    );
     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my %needpb = &passbacks_for_symb($cdom,$cnum,$symb);
+
     my (@partid);
     my %weight = ();
     my %columns = ();
@@ -4265,6 +5546,7 @@ sub editgrades {
 	&Apache::loncommon::end_data_table_header_row();
     my @noupdate;
     my ($updateCtr,$noupdateCtr) = (1,1);
+    my ($got_types,%queueable,%pbsave,%skip_passback);
     for ($i=0; $i<$env{'form.total'}; $i++) {
 	my $user = $env{'form.ctr'.$i};
 	my ($uname,$udom)=split(/:/,$user);
@@ -4283,6 +5565,7 @@ sub editgrades {
         my %aggregate = ();
         my $aggregateflag = 0;
 	$user=~s/:/_/; # colon doen't work in javascript for names
+        my (%weights,%awardeds,%excuseds);
 	foreach (@partid) {
 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
@@ -4291,6 +5574,7 @@ sub editgrades {
 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 	    my $partial   = $awarded eq '' ? '' : $pcr;
+            $awardeds{$symb}{$_} = $partial;
 	    my $score;
 	    if ($partial eq '') {
 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
@@ -4331,6 +5615,11 @@ sub editgrades {
 
 
 	    my $partid=$_;
+            if ($score eq 'excused') {
+                $excuseds{$symb}{$partid} = 1;
+            } else {
+                $excuseds{$symb}{$partid} = '';
+            }
 	    foreach my $stores (@parts) {
 		my ($part,$type) = &split_part_type($stores);
 		if ($part !~ m/^\Q$partid\E/) { next;}
@@ -4348,9 +5637,6 @@ sub editgrades {
 	}
 	$line.="\n";
 
-	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-
 	if ($updateflag) {
 	    $count++;
 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
@@ -4364,14 +5650,33 @@ sub editgrades {
 					     $udom,$uname);
 		my $all_graded = 1;
 		my $none_graded = 1;
+                unless ($got_types) {
+                    my $error;
+                    my ($plist,$handgrd,$resptype) = &response_type($symb,\$error);
+                    unless ($error) {
+                        foreach my $part (@parts) {
+                            if (ref($resptype->{$part}) eq 'HASH') {
+                                foreach my $id (keys(%{$resptype->{$part}})) {
+                                    if (($resptype->{$part}->{$id} eq 'essay') ||
+                                        (lc($handgrd->{$part.'_'.$id}) eq 'yes')) {
+                                        $queueable{$part} = 1;
+                                        last;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    $got_types = 1;
+                }
 		foreach my $part (@parts) {
-		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
-			$all_graded = 0;
-		    } else {
-			$none_graded = 0;
+                    if ($queueable{$part}) {
+		        if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
+			    $all_graded = 0;
+		        } else {
+			    $none_graded = 0;
+		        }
 		    }
-		}
-
+                }
 		if ($all_graded || $none_graded) {
 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 							   $symb,$cdom,$cnum,
@@ -4383,6 +5688,11 @@ sub editgrades {
 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 		&Apache::loncommon::end_data_table_row();
 	    $updateCtr++;
+            if (keys(%needpb)) {
+                $weights{$symb} = \%weight;
+                &process_passbacks('editgrades',[$symb],$cdom,$cnum,$udom,$uname,$usec,\%weights,
+                                   \%awardeds,\%excuseds,\%needpb,\%skip_passback,\%pbsave);
+            }
 	} else {
 	    push(@noupdate,
 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
@@ -4642,7 +5952,7 @@ ENDUPFORM
 
 
 sub csvuploadmap {
-    my ($request,$symb)= @_;
+    my ($request,$symb) = @_;
     if (!$symb) {return '';}
 
     my $datatoken;
@@ -4738,7 +6048,7 @@ sub get_fields {
 }
 
 sub csvuploadassign {
-    my ($request,$symb)= @_;
+    my ($request,$symb) = @_;
     if (!$symb) {return '';}
     my $error_msg = '';
     my $datatoken = &Apache::loncommon::valid_datatoken($env{'form.datatoken'});
@@ -4748,11 +6058,33 @@ sub csvuploadassign {
     my @gradedata = &Apache::loncommon::upfile_record_sep();
     my %fields=&get_fields();
     my $courseid=$env{'request.course.id'};
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
     my ($classlist) = &getclasslist('all',0);
     my @notallowed;
     my @skipped;
     my @warnings;
     my $countdone=0;
+    my @parts;
+    my %needpb = &passbacks_for_symb($cdom,$cnum,$symb);
+    my $passback;
+    if (keys(%needpb)) {
+        $passback = 1;
+        my $navmap = Apache::lonnavmaps::navmap->new();
+        if (ref($navmap)) {
+            my $res = $navmap->getBySymb($symb);
+            if (ref($res)) {
+                my $partlist = $res->parts();
+                if (ref($partlist) eq 'ARRAY') {
+                    @parts = sort(@{$partlist});
+                }
+            }
+        } else {
+            return &navmap_errormsg();
+        }
+    }
+    my (%skip_passback,%pbsave,%weights,%awardeds,%excuseds);
+
     foreach my $grade (@gradedata) {
 	my %entries=&Apache::loncommon::record_sep($grade);
 	my $domain;
@@ -4827,9 +6159,14 @@ sub csvuploadassign {
 		my $part=$1;
 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 					      $symb,$domain,$username);
+                $weights{$symb}{$part} = $wgt;
                 if ($wgt) {
                     $entries{$fields{$dest}}=~s/\s//g;
                     my $pcr=$entries{$fields{$dest}} / $wgt;
+                    if ($passback) {
+                        $awardeds{$symb}{$part} = $pcr;
+                        $excuseds{$symb}{$part} = '';
+                    }
                     my $award=($pcr == 0) ? 'incorrect_by_override'
                                           : 'correct_by_override';
                     if ($pcr>1) {
@@ -4849,12 +6186,28 @@ sub csvuploadassign {
 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 		my $store_key=$dest;
+                if ($passback) {
+                    if ($store_key=~/stores_(.*)_(awarded|solved)/) {
+                        my ($part,$key) = ($1,$2);
+                        unless ((ref($weights{$symb}) eq 'HASH') && (exists($weights{$symb}{$part}))) {
+                            $weights{$symb}{$part} = &Apache::lonnet::EXT('resource.'.$part.'.weight',
+                                                                          $symb,$domain,$username);
+                        }
+                        if ($key eq 'awarded') {
+                            $awardeds{$symb}{$part} = $entries{$fields{$dest}};
+                        } elsif ($key eq 'solved') {
+                            if ($entries{$fields{$dest}} =~ /^excused/) {
+                                $excuseds{$symb}{$part} = 1;
+                            }
+                        }
+                    }
+                }
 		$store_key=~s/^stores/resource/;
 		$store_key=~s/_/\./g;
 		$grades{$store_key}=$entries{$fields{$dest}};
 	    }
 	}
-	if (! %grades) { 
+	if (! %grades) {
            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
         } else {
 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
@@ -4865,11 +6218,32 @@ sub csvuploadassign {
 # Successfully stored
 	      $request->print('.');
 # Remove from grading queue
-              &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
-                                             $env{'course.'.$env{'request.course.id'}.'.domain'},
-                                             $env{'course.'.$env{'request.course.id'}.'.num'},
-                                             $domain,$username);
+              &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,$cnum,
+						     $domain,$username);
               $countdone++;
+              if ($passback) {
+                  my @parts_in_upload;
+                  if (ref($weights{$symb}) eq 'HASH') {
+                      @parts_in_upload = sort(keys(%{$weights{$symb}}));
+                  }
+                  my @diffs = &Apache::loncommon::compare_arrays(\@parts_in_upload,\@parts);
+                  if (@diffs > 0) {
+                      my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$username);
+                      foreach my $part (@parts) {
+                          next if (grep(/^\Q$part\E$/,@parts_in_upload));
+                          $weights{$symb}{$part} = &Apache::lonnet::EXT('resource.'.$part.'.weight',
+                                                                        $symb,$domain,$username);
+                          if ($record{"resource.$part.solved"} =~/^excused/) {
+                              $excuseds{$symb}{$part} = 1;
+                          } else {
+                              $excuseds{$symb}{$part} = '';
+                          }
+                          $awardeds{$symb}{$part} = $record{"resource.$part.awarded"};
+                      }
+                  }
+                  &process_passbacks('csvupload',[$symb],$cdom,$cnum,$domain,$username,$usec,\%weights,
+                                     \%awardeds,\%excuseds,\%needpb,\%skip_passback,\%pbsave);
+              }
            } else {
 	      $request->print("<p><span class=\"LC_error\">".
                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
@@ -4925,6 +6299,7 @@ LISTJAVASCRIPT
     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'};
+    my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
 
     my $result='<h3><span class="LC_info">&nbsp;'.
 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
@@ -5014,7 +6389,7 @@ LISTJAVASCRIPT
 	'<th>'.&nameUserString('header').'</th>'.
 	&Apache::loncommon::end_data_table_header_row();
  
-    my (undef,undef,$fullname) = &getclasslist($getsec,'1');
+    my (undef,undef,$fullname) = &getclasslist($getsec,'1',$getgroup);
     my $ptr = 1;
     foreach my $student (sort 
 			 {
@@ -5241,10 +6616,14 @@ 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);
@@ -5310,11 +6689,11 @@ sub displaySubByDates {
             }
             my @matchKey;
             if ($isTask) {
-                @matchKey = sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys);
+                @matchKey = sort(grep(/^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys));
             } elsif ($is_tool) {
-                @matchKey = sort(grep /^resource\.\Q$partid\E\.awarded$/,@versionKeys);
+                @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);
@@ -5460,6 +6839,7 @@ sub updateGradeByPage {
     $iterator->next(); # skip the first BEGIN_MAP
     my $curRes = $iterator->next(); # for "current resource"
     my ($depth,$question,$prob,$changeflag,$hideflag)= (1,1,1,0,0);
+    my (@updates,%weights,%excuseds,%awardeds,@symbs_in_map);
     while ($depth > 0) {
         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
         if($curRes == $iterator->END_MAP) { $depth--; }
@@ -5468,6 +6848,7 @@ sub updateGradeByPage {
 	    my $parts = $curRes->parts();
             my $title = $curRes->compTitle();
 	    my $symbx = $curRes->symb();
+            push(@symbs_in_map,$symbx);
 	    $studentTable.=
 		&Apache::loncommon::start_data_table_row().
 		'<td align="center" valign="top" >'.$prob.
@@ -5480,18 +6861,37 @@ sub updateGradeByPage {
 	    my @displayPts=();
             my %aggregate = ();
             my $aggregateflag = 0;
+            my %queueable;
             if ($env{'form.HIDE'.$prob}) {
                 my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
                 my ($version,$parts) = split(/:/,$env{'form.HIDE'.$prob},2);
                 my $numchgs = &makehidden($version,$parts,\%record,$symbx,$udom,$uname,1);
+                if ($numchgs) {
+                    push(@updates,$symbx);
+                }
                 $hideflag += $numchgs;
             }
 	    foreach my $partid (@{$parts}) {
 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
-
+                my @types = $curRes->responseType($partid);
+                if (grep(/^essay$/,@types)) {
+                    $queueable{$partid} = 1;
+                } else {
+                    my @ids = $curRes->responseIds($partid);
+                    for (my $i=0; $i < scalar(@ids); $i++) {
+                        my $hndgrd = &Apache::lonnet::EXT('resource.'.$partid.'_'.$ids[$i].
+                                                          '.handgrade',$symb);
+                        if (lc($hndgrd) eq 'yes') {
+                            $queueable{$partid} = 1;
+                            last;
+                        }
+                    }
+                }
 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
+                $weights{$symbx}{$partid} = $wgt;
+                $excuseds{$symbx}{$partid} = '';
 		my $partial = $newpts/$wgt;
 		my $score;
 		if ($partial > 0) {
@@ -5503,6 +6903,7 @@ sub updateGradeByPage {
 		if ($dropMenu eq 'excused') {
 		    $partial = '';
 		    $score = 'excused';
+                    $excuseds{$symbx}{$partid} = 1;
 		} elsif ($dropMenu eq 'reset status'
 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
@@ -5530,6 +6931,11 @@ sub updateGradeByPage {
 		     (($score eq 'excused') ? 'excused' : $newpts).
 		    '&nbsp;<br />';
 		$question++;
+                if (($newpts eq '') || ($partial eq '')) {
+                    $awardeds{$symbx}{$partid} = 0;
+                } else {
+                    $awardeds{$symbx}{$partid} = $partial;
+                }
 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 
 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
@@ -5555,7 +6961,7 @@ sub updateGradeByPage {
 						   $env{'request.course.id'},
 						   $udom,$uname);
 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
-					     $cdom,$cnum,$udom,$uname);
+					     $cdom,$cnum,$udom,$uname,\%queueable);
 	    }
 	    
             if ($aggregateflag) {
@@ -5569,6 +6975,9 @@ sub updateGradeByPage {
 		&Apache::loncommon::end_data_table_row();
 
 	    $prob++;
+            if ($changeflag) {
+                push(@updates,$symbx);
+            }
 	}
         $curRes = $iterator->next();
     }
@@ -5582,9 +6991,90 @@ sub updateGradeByPage {
                      $hideflag).'<br />');
     $request->print($hidemsg.$grademsg.$studentTable);
 
+    if (@updates) {
+        my (@allsymbs,$mapsymb,@recurseup,%parentmapsymbs,%possmappb,%possrespb);
+        @allsymbs = @updates;
+        if (ref($map)) {
+            $mapsymb = $map->symb();
+            push(@allsymbs,$mapsymb);
+            @recurseup = $navmap->recurseup_maps($map->src,1);
+        }
+        if (@recurseup) {
+            push(@allsymbs,@recurseup);
+            map { $parentmapsymbs{$_} = 1; } @recurseup;
+        }
+        my %passback = &Apache::lonnet::get('nohist_linkprot_passback',\@allsymbs,$cdom,$cnum);
+        my (%uniqsymbs,$use_symbs_in_map);
+        if (keys(%passback)) {
+            foreach my $possible (keys(%passback)) {
+                if (ref($passback{$possible}) eq 'HASH') {
+                    if ($possible eq $mapsymb) {
+                        foreach my $launcher (keys(%{$passback{$possible}})) {
+                            $possmappb{$launcher} = 1;
+                        }
+                        $use_symbs_in_map = 1;
+                    } elsif (exists($parentmapsymbs{$possible})) {
+                        foreach my $launcher (keys(%{$passback{$possible}})) {
+                            my ($linkuri,$linkprotector,$scope) = split(/\0/,$launcher);
+                            if ($scope eq 'rec') {
+                                $possmappb{$launcher} = 1;
+                                $use_symbs_in_map = 1;
+                            }
+                        }
+                    } elsif (grep(/^\Q$possible$\E$/,@updates)) {
+                        foreach my $launcher (keys(%{$passback{$possible}})) {
+                            $possrespb{$launcher} = 1;
+                        }
+                        $uniqsymbs{$possible} = 1;
+                    }
+                }
+            }
+        }
+        if ($use_symbs_in_map) {
+            map { $uniqsymbs{$_} = 1; } @symbs_in_map;
+        }
+        my @posslaunchers;
+        if (keys(%possmappb)) {
+            push(@posslaunchers,keys(%possmappb));
+        }
+        if (keys(%possrespb)) {
+            push(@posslaunchers,keys(%possrespb));
+        }
+        if (@posslaunchers) {
+            my (%pbsave,%skip_passback,%needpb);
+            my %pbids = &Apache::lonnet::get('nohist_'.$cdom.'_'.$cnum.'_linkprot_pb',\@posslaunchers,$udom,$uname);
+            foreach my $key (keys(%pbids)) {
+                if (ref($pbids{$key}) eq 'ARRAY') {
+                    $needpb{$key} = 1;
+                }
+            }
+            my @symbs = keys(%uniqsymbs);
+            &process_passbacks('updatebypage',\@symbs,$cdom,$cnum,$udom,$uname,$usec,\%weights,
+                               \%awardeds,\%excuseds,\%needpb,\%skip_passback,\%pbsave,\%pbids);
+            if (@Apache::grades::ltipassback) {
+                unless ($registered_cleanup) {
+                    my $handlers = $request->get_handlers('PerlCleanupHandler');
+                    $request->set_handlers('PerlCleanupHandler' =>
+                                           [\&Apache::grades::make_passback,@{$handlers}]);
+                    $registered_cleanup=1;
+                }
+            }
+        }
+    }
     return '';
 }
 
+sub make_passback {
+    if (@Apache::grades::ltipassback) {
+        my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
+        my $ip = &Apache::lonnet::get_host_ip($lonhost);
+        foreach my $item (@Apache::grades::ltipassback) {
+            &Apache::lonhomework::run_passback($item,$lonhost,$ip);
+        }
+        undef(@Apache::grades::ltipassback);
+    }
+}
+
 #-------- end of section for handling grading by page/sequence ---------
 #
 #-------------------------------------------------------------------
@@ -5654,7 +7144,7 @@ the homework problem.
 
 sub defaultFormData {
     my ($symb)=@_;
-    return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />';
+    return '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />';
 }
 
 
@@ -5897,8 +7387,7 @@ 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.
 
@@ -5906,6 +7395,7 @@ sub scantron_selectphase {
     <br />');
     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($cdom);
@@ -5921,6 +7411,7 @@ sub scantron_selectphase {
               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
                 '.$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').'
@@ -6001,8 +7492,6 @@ sub scantron_selectphase {
    
     $r->print($result);
 
-
-
     # Chunk of the form that prompts to view a scoring office file,
     # corrected file, skipped records in a file.
 
@@ -6468,9 +7957,12 @@ sub scantron_parse_scanline {
 }
 
 sub get_master_seq {
-    my ($resources,$master_seq,$symb_to_resource) = @_;
+    my ($resources,$master_seq,$symb_to_resource,$need_symb_in_map,$symb_for_examcode) = @_;
     return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') && 
                    (ref($symb_to_resource) eq 'HASH'));
+    if ($need_symb_in_map) {
+        return unless (ref($symb_for_examcode) eq 'HASH');
+    }
     my $resource_error;
     foreach my $resource (@{$resources}) {
         my $ressymb;
@@ -6478,6 +7970,14 @@ sub get_master_seq {
             $ressymb = $resource->symb();
             push(@{$master_seq},$ressymb);
             $symb_to_resource->{$ressymb} = $resource;
+            if ($need_symb_in_map) {
+                unless ($resource->is_map()) {
+                    my $map=(&Apache::lonnet::decode_symb($ressymb))[0];
+                    unless (exists($symb_for_examcode->{$map})) {
+                        $symb_for_examcode->{$map} = $ressymb;
+                    }
+                }
+            }
         } else {
             $resource_error = 1;
             last;
@@ -6980,7 +8480,7 @@ 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>
@@ -6992,9 +8492,7 @@ 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
@@ -7020,15 +8518,58 @@ 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" />
 ');
@@ -7115,7 +8656,38 @@ 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;
@@ -7140,7 +8712,7 @@ sub scantron_validate_file {
 	$env{'form.validatepass'} = 0;
     }
     my $currentphase=$env{'form.validatepass'};
-
+    my %skipbysec=();
 
     my $stop=0;
     while (!$stop && $currentphase < scalar(@validate_phases)) {
@@ -7150,13 +8722,29 @@ sub scantron_validate_file {
 	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>'.
@@ -7572,11 +9160,12 @@ 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'});
@@ -7590,6 +9179,7 @@ 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; }
@@ -7602,13 +9192,41 @@ 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
@@ -7617,29 +9235,95 @@ 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,
@@ -7826,7 +9510,7 @@ sub verify_bubbles_checked {
     my $ansnumstr = join('","',@ansnums);
     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
     &js_escape(\$warning);
-    my $output = &Apache::lonhtmlcommon::scripttag((<<ENDSCRIPT));
+    my $output = &Apache::lonhtmlcommon::scripttag(<<ENDSCRIPT);
 function verify_bubble_radio(form) {
     var ansnumArray = new Array ("$ansnumstr");
     var need_bubble_count = 0;
@@ -8305,6 +9989,17 @@ sub scantron_validate_doublebubble {
     if (ref($map)) {
         $randomorder = $map->randomorder();
         $randompick = $map->randompick();
+        unless ($randomorder || $randompick) {
+            foreach my $res ($navmap->retrieveResources($map,sub { $_[0]->is_map() },1,0,1)) {
+                if ($res->randomorder()) {
+                    $randomorder = 1;
+                }
+                if ($res->randompick()) {
+                    $randompick = 1;
+                }
+                last if ($randomorder || $randompick);
+            }
+        }
         if ($randomorder || $randompick) {
             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
             if ($nav_error) {
@@ -8488,6 +10183,17 @@ sub scantron_validate_missingbubbles {
     if (ref($map)) {
         $randomorder = $map->randomorder();
         $randompick = $map->randompick();
+        unless ($randomorder || $randompick) {
+            foreach my $res ($navmap->retrieveResources($map,sub { $_[0]->is_map() },1,0,1)) {
+                if ($res->randomorder()) {
+                    $randomorder = 1;
+                }
+                if ($res->randompick()) {
+                    $randompick = 1;
+                }
+                last if ($randomorder || $randompick);
+            }
+        }
         if ($randomorder || $randompick) {
             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
             if ($nav_error) {
@@ -8629,10 +10335,21 @@ sub scantron_process_students {
     }
     my $map=$navmap->getResourceByUrl($sequence);
     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
-        %grader_randomlists_by_symb);
+        %grader_randomlists_by_symb,%symb_for_examcode);
     if (ref($map)) {
         $randomorder = $map->randomorder();
         $randompick = $map->randompick();
+        unless ($randomorder || $randompick) {
+            foreach my $res ($navmap->retrieveResources($map,sub { $_[0]->is_map() },1,0,1)) {
+                if ($res->randomorder()) {
+                    $randomorder = 1;
+                }
+                if ($res->randompick()) {
+                    $randompick = 1;
+                }
+                last if ($randomorder || $randompick);
+            }
+        }
     } else {
         $r->print(&navmap_errormsg());
         return '';
@@ -8640,7 +10357,7 @@ sub scantron_process_students {
     my $nav_error;
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
     if ($randomorder || $randompick) {
-        $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
+        $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource,1,\%symb_for_examcode);
         if ($nav_error) {
             $r->print(&navmap_errormsg());
             return '';
@@ -8657,9 +10374,10 @@ 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);
@@ -8719,6 +10437,13 @@ 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);
 
@@ -8787,11 +10512,16 @@ SCANTRONFORM
         }
 
         if (($scancode) && ($randomorder || $randompick)) {
-            my $parmresult =
-                &Apache::lonparmset::storeparm_by_symb($symb,
-                                                       '0_examcode',2,$scancode,
-                                                       'string_examcode',$uname,
-                                                       $udom);
+            foreach my $key (keys(%symb_for_examcode)) {
+                my $symb_in_map = $symb_for_examcode{$key};
+                if ($symb_in_map ne '') {
+                    my $parmresult =
+                        &Apache::lonparmset::storeparm_by_symb($symb_in_map,
+                                                               '0_examcode',2,$scancode,
+                                                               'string_examcode',$uname,
+                                                               $udom);
+                }
+            }
         }
 	$completedstudents{$uname}={'line'=>$line};
         if ($env{'form.verifyrecord'}) {
@@ -9010,7 +10740,7 @@ sub grade_student_bubbles {
 }
 
 sub scantron_upload_scantron_data {
-    my ($r,$symb)=@_;
+    my ($r,$symb) = @_;
     my $dom = $env{'request.role.domain'};
     my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($dom);
     my $domdesc = &Apache::lonnet::domain($dom,'description');
@@ -9106,14 +10836,14 @@ END
                             my @lines = &Apache::lonnet::get_scantronformat_file();
                             my $count = 0;
                             foreach my $line (@lines) {
-                                next if ($line =~ /^#/);
+                                next if (($line =~ /^\#/) || ($line eq ''));
                                 $singleline = $line;
                                 $count ++;
                             }
                             if ($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";
@@ -9166,7 +10896,7 @@ END
 }
 
 sub scantron_upload_scantron_data_save {
-    my($r,$symb)=@_;
+    my ($r,$symb) = @_;
     my $doanotherupload=
 	'<br /><form action="/adm/grades" method="post">'."\n".
 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
@@ -9174,7 +10904,9 @@ sub scantron_upload_scantron_data_save {
 	'</form>'."\n";
     if (!&Apache::lonnet::allowed('usc',$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) {
 	    $r->print($doanotherupload);
@@ -9230,8 +10962,17 @@ sub scantron_upload_scantron_data_save {
                         (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));
+                                                       $env{'form.courseid'},$symb,$uploadedfile));
         } else {
             $r->print(
                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
@@ -9249,13 +10990,34 @@ 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);
@@ -9268,7 +11030,7 @@ sub validate_uploaded_scantron_file {
         my %unique_formats;
         my @formatlines = &Apache::lonnet::get_scantronformat_file();
         foreach my $line (@formatlines) {
-            chomp($line);
+            next if (($line =~ /^\#/) || ($line eq ''));
             my @config = split(/:/,$line);
             my $idstart = $config[5];
             my $idlength = $config[6];
@@ -9285,6 +11047,8 @@ sub validate_uploaded_scantron_file {
             %{$counts{$key}} = (
                                'found'   => 0,
                                'total'   => 0,
+                               'totalanysec' => 0,
+                               'othersec' => 0,
                               );
             foreach my $line (@lines) {
                 next if ($line =~ /^#/);
@@ -9292,6 +11056,23 @@ 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'} ++;
@@ -9306,7 +11087,7 @@ 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; $i++) {
@@ -9351,13 +11132,179 @@ sub validate_uploaded_scantron_file {
                     '<li>'.&mt('The course roster is not up to date.').'</li>'.
                     '</ul>';
             }
+            if (($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())) {
@@ -9367,7 +11314,7 @@ sub valid_file {
 }
 
 sub scantron_download_scantron_data {
-    my ($r,$symb)=@_;
+    my ($r,$symb) = @_;
     my $default_form_data=&defaultFormData($symb);
     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
@@ -9380,6 +11327,29 @@ sub scantron_download_scantron_data {
 ');
 	return;
     }
+    my (%uploader,$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;
@@ -9416,7 +11386,7 @@ 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 $navmap=Apache::lonnavmaps::navmap->new();
@@ -9430,6 +11400,17 @@ sub checkscantron_results {
     if (ref($map)) { 
         $randomorder=$map->randomorder();
         $randompick=$map->randompick();
+        unless ($randomorder || $randompick) {
+            foreach my $res ($navmap->retrieveResources($map,sub { $_[0]->is_map() },1,0,1)) {
+                if ($res->randomorder()) {
+                    $randomorder = 1;
+                }
+                if ($res->randompick()) {
+                    $randompick = 1;
+                }
+                last if ($randomorder || $randompick);
+            }
+        }
     }
     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
     my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
@@ -9738,7 +11719,6 @@ sub verify_scantron_grading {
     return ($counter,$record);
 }
 
-
 #-------- end of section for handling grading scantron forms -------
 #
 #-------------------------------------------------------------------
@@ -9749,7 +11729,8 @@ sub verify_scantron_grading {
 
 sub href_symb_cmd {
     my ($symb,$cmd)=@_;
-    return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
+    return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.
+           &HTML::Entities::encode($cmd,'<>&"');
 }
 
 sub grading_menu {
@@ -9784,37 +11765,47 @@ 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',
+                    		permission => $permissions{'either'},
                     		icon => 'grade_students.png',
                     		linktitle => 'Grade current resource for a selection of students.'
                         }, 
-                        {       linktext => 'Grade ungraded submissions.',
+                        {       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.'
                         }]},
@@ -9823,32 +11814,45 @@ 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.'
                             }
 
                     ]
             });
-
+    my $cdom = $env{"course.$env{'request.course.id'}.domain"};
+    my $cnum = $env{"course.$env{'request.course.id'}.num"};
+    my %passback = &Apache::lonnet::dump('nohist_linkprot_passback',$cdom,$cnum);
+    if (keys(%passback)) {
+        $fields{'command'} = 'initialpassback';
+        my $url6 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
+        push (@{$menu[1]{items}},
+                  { linktext => 'Passback of Scores',
+                    url => $url6,
+                    permission => $permissions{'either'},
+                    icon => 'passback.png',
+                    linktitle => 'Passback scores to launcher CMS for resources accessed via LTI-mediated deep-linking',
+                  });
+    }
     # Create the menu
     my $Str;
     $Str .= '<form method="post" action="" name="gradingMenu">';
@@ -9859,7 +11863,6 @@ sub grading_menu {
     return $Str;    
 }
 
-
 sub ungraded {
     my ($request)=@_;
     &submit_options($request);
@@ -9907,11 +11910,30 @@ sub submit_options_download {
     my ($request,$symb) = @_;
     if (!$symb) {return '';}
 
+    my $res_error;
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay,$numdropbox) =
+        &response_type($symb,\$res_error);
+    if ($res_error) {
+        $request->print(&mt('An error occurred retrieving response types'));
+        return;
+    }
+    unless ($numessay) {
+        $request->print(&mt('No essayresponse items found'));
+        return;
+    }
+    my $table;
+    if (ref($partlist) eq 'ARRAY') {
+        if (scalar(@$partlist) > 1 ) {
+            $table = &showResourceInfo($symb,$partlist,$responseType,'gradingMenu',1,1);
+        }
+    }
+
     my $is_tool = ($symb =~ /ext\.tool$/);
     &commonJSfunctions($request);
 
     my $result='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
-        '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($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').'
@@ -9942,8 +11964,6 @@ sub submit_options {
 	      <input type="submit" value="'.&mt('Next').' &rarr;" />
             </div>
           </div>
-
-
   </form>';
     return $result;
 }
@@ -9960,6 +11980,14 @@ sub selectfield {
            (&substatus_options,
             'select_form_order' => ['yes','queued','graded','incorrect','all']);
    }
+
+  #
+  # PrepareClasslist() needs to be called to avoid getting a sections list
+  # for a different course from the @Sections global in lonstatistics.pm, 
+  # populated by an earlier request.
+  #
+   &Apache::lonstatistics::PrepareClasslist();
+
    my $result='<div class="LC_columnSection">
   
     <fieldset>
@@ -10023,7 +12051,7 @@ 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,$scope))) {
@@ -10211,12 +12239,12 @@ ENDUPFORM
 <input type="text" name="givenanswer" size="50" />
 <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
 ENDGRADINGFORM
-         $result.='</td>'.&Apache::loncommon::end_data_table_row().
+    $result.='</td>'.&Apache::loncommon::end_data_table_row().
                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDPERCFORM);
       <label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
 <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
 <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
-</form>'
+</form>
 ENDPERCFORM
     $result.='</td>'.
              &Apache::loncommon::end_data_table_row().
@@ -10225,7 +12253,7 @@ ENDPERCFORM
 }
 
 sub process_clicker_file {
-    my ($r,$symb)=@_;
+    my ($r,$symb) = @_;
     if (!$symb) {return '';}
 
     my %Saveable_Parameters=&clicker_grading_parameters();
@@ -10399,7 +12427,7 @@ ENDHEADER
                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
                    "\n".&mt("Domain").": ".
                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
-                   &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
+                   &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,'',$id);
           $unknown_count++;
        }
     }
@@ -10555,7 +12583,7 @@ sub turning_eval {
 
 
 sub assign_clicker_grades {
-    my ($r,$symb)=@_;
+    my ($r,$symb) = @_;
     if (!$symb) {return '';}
 # See which part we are saving to
     my $res_error;
@@ -10566,11 +12594,11 @@ 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().
-             &Apache::loncommon::start_data_table_header_row().
-             '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
-             &Apache::loncommon::end_data_table_header_row().
-             &Apache::loncommon::start_data_table_row().'<td>';
+    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().
+                 &Apache::loncommon::start_data_table_row().'<td>';
 # Get correct result
 # FIXME: Possibly need delimiter other than ":"
     my @correct=();
@@ -10632,7 +12660,7 @@ sub assign_clicker_grades {
           for (my $i=0;$i<$number;$i++) {
              if  ($correct[$i] eq '-') {
                 $realnumber--;
-             } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/))  {
+             } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/)) {
                 if ($gradingmechanism eq 'attendance') {
                    $sum+=$pcorrect;
                 } elsif ($correct[$i] eq '*') {
@@ -10672,6 +12700,7 @@ sub assign_clicker_grades {
              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
           } else {
              $storecount++;
+             #FIXME Do passback for $user if required
           }
        }
     }
@@ -10691,7 +12720,7 @@ sub navmap_errormsg {
 }
 
 sub startpage {
-    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js,$onload) = @_;
+    my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$head_extra,$onload,$divforres) = @_;
     my %args;
     if ($onload) {
          my %loaditems = (
@@ -10701,26 +12730,101 @@ sub startpage {
     }
     if ($nomenu) {
         $args{'only_body'} = 1; 
-        $r->print(&Apache::loncommon::start_page("Student's Version",$js,\%args));
+        $r->print(&Apache::loncommon::start_page("Student's Version",$head_extra,\%args));
     } else {
-        unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
+        if ($env{'request.course.id'}) { 
+            unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
+        }
         $args{'bread_crumbs'} = $crumbs;
-        $r->print(&Apache::loncommon::start_page('Grading',$js,\%args));
-        &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
+        $r->print(&Apache::loncommon::start_page('Grading',$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));
+        $r->print(&Apache::lonhtmlcommon::resource_info_box($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,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>');
 }
 
+#----- display problem, answer, and submissions for a single student (no grading)
+
+sub view_as_user {
+    my ($symb,$vuname,$vudom,$hasperm) = @_;
+    my $plainname = &Apache::loncommon::plainname($vuname,$vudom,'lastname');
+    my $displayname = &nameUserString('',$plainname,$vuname,$vudom);
+    my $output = &Apache::loncommon::get_student_view($symb,$vuname,$vudom,
+                                                      $env{'request.course.id'},
+                                                      undef,{'disable_submit' => 1}).
+                 "\n\n".
+                 '<div class="LC_grade_show_user">'.
+                 '<h2>'.$displayname.'</h2>'.
+                 "\n".
+                 &Apache::loncommon::track_student_link('View recent activity',
+                                                        $vuname,$vudom,'check').' '.
+                 "\n";
+    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'}) ||
+        (($env{'request.course.sec'} ne '') &&
+         &Apache::lonnet::allowed('opa',$env{'request.course.id'}.'/'.$env{'request.course.sec'}))) {
+        $output .= &Apache::loncommon::pprmlink(&mt('Set/Change parameters'),
+                                               $vuname,$vudom,$symb,'check');
+    }
+    $output .= "\n";
+    my $companswer = &Apache::loncommon::get_student_answers($symb,$vuname,$vudom,
+                                                             $env{'request.course.id'});
+    $companswer=~s|<form(.*?)>||g;
+    $companswer=~s|</form>||g;
+    $companswer=~s|name="submit"|name="would_have_been_submit"|g;
+    $output .= '<div class="LC_Box">'.
+               '<h3 class="LC_hcell">'.&mt('Correct answer for[_1]',$displayname).'</h3>'.
+               $companswer.
+               '</div>'."\n";
+    my $is_tool = ($symb =~ /ext\.tool$/);
+    my ($essayurl,%coursedesc_by_cid);
+    (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
+    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$vudom,$vuname);
+    my $res_error;
+    my ($partlist,$handgrade,$responseType,$numresp,$numessay) =
+        &response_type($symb,\$res_error);
+    my $fullname;
+    my $collabinfo;
+    if ($numessay) {
+        unless ($hasperm) {
+            &init_perm();
+        }
+        ($collabinfo,$fullname)=
+            &check_collaborators($symb,$vuname,$vudom,\%record,$handgrade,0);
+        unless ($hasperm) {
+            &reset_perm();
+        }
+    }
+    my $checkIcon = '<img alt="'.&mt('Check Mark').
+                    '" src="'.$Apache::lonnet::perlvar{'lonIconsURL'}.
+                    '/check.gif" height="16" border="0" />';
+    my ($lastsubonly,$partinfo) =
+        &show_last_submission($vuname,$vudom,$symb,$essayurl,$responseType,'datesub',
+                              '',$fullname,\%record,\%coursedesc_by_cid);
+    $output .= '<div class="LC_Box">'.
+               '<h3 class="LC_hcell">'.&mt('Submissions').'</h3>'."\n".$collabinfo."\n";
+    if (($numresp > $numessay) & !$is_tool) {
+        $output .='<p class="LC_info">'.
+                  &mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon).
+                  "</p>\n";
+    }
+    $output .= $partinfo;
+    $output .= $lastsubonly;
+    $output .= &displaySubByDates($symb,\%record,$partlist,$responseType,$checkIcon,$vuname,$vudom);
+    $output .= '</div></div>'."\n";
+    return $output;
+}
+
 sub handler {
     my $request=$_[0];
     &reset_caches();
@@ -10755,6 +12859,10 @@ sub handler {
 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
     }
 
+# -------------------------------------- Flag and buffer for registered cleanup
+    $registered_cleanup=0;
+    undef(@Apache::grades::ltipassback);
+
 # see what the symb is
 
     my $symb=$env{'form.symb'};
@@ -10773,24 +12881,49 @@ sub handler {
         &select_problem($request);
     } else {
 	if ($command eq 'submission' && $perm{'vgr'}) {
-            my ($stuvcurrent,$stuvdisp,$versionform,$js);
+            my ($stuvcurrent,$stuvdisp,$versionform,$js,$onload);
             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
                     &choose_task_version_form($symb,$env{'form.student'},
                                               $env{'form.userdom'});
             }
-            &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
+            my $divforres;
+            if ($env{'form.student'} eq '') {
+                $js .= &part_selector_js();
+                $onload = "toggleParts('gradesub');";
+            } else {
+                $divforres = 1;
+            }
+            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);
             }
-            $request->print('<br clear="all" />');
-	    ($env{'form.student'} eq '' ? &listStudents($request,$symb) : &submission($request,0,0,$symb));
+	    ($env{'form.student'} eq '' ? &listStudents($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);
             }
@@ -10801,10 +12934,14 @@ sub handler {
                                        {href=>'',text=>'Select student'}],1,1);
 	    &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($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                                        {href=>'',text=>'Select student'},
-                                       {href=>'',text=>'Grade student'}],1,1);
+                                       {href=>'',text=>'Grade student'}],1,1,undef,undef,undef,$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'},
@@ -10813,8 +12950,12 @@ sub handler {
                                        {href=>'',text=>'Store grades'}],1,1);
 	    &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'}]);
+                                       {href=>'',text=>'Modify grades'}],undef,undef,undef,undef,undef,$csslinks,undef,1);
 	    &processGroup($request,$symb);
 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
             &startpage($request,$symb);
@@ -10823,7 +12964,10 @@ sub handler {
             &startpage($request,$symb,[{href=>'',text=>'Select individual students to grade'}]);
 	    $request->print(&submit_options($request,$symb));
         } elsif ($command eq 'ungraded' && $perm{'vgr'}) {
-            &startpage($request,$symb,[{href=>'',text=>'Grade ungraded submissions'}]);
+            my $js = &part_selector_js();
+            my $onload = "toggleParts('gradesub');";
+            &startpage($request,$symb,[{href=>'',text=>'Grade ungraded submissions'}],
+                       undef,undef,undef,undef,undef,$js,$onload);
             $request->print(&listStudents($request,$symb,'graded'));
         } elsif ($command eq 'table' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>"", text=>"Grading table"}]);
@@ -10902,31 +13046,75 @@ sub handler {
             &startpage($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'}))) {
+ 		 (&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'}))) {
+ 		 (&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' &&
-		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
+ 	} elsif ($command eq 'scantron_download' && ($perm{'usc'} || $perm{'mgr'})) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
  	    $request->print(&scantron_download_scantron_data($request,$symb));
+        } elsif ($command eq 'scantronupload_delete' &&
+                 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) || $perm{'usc'})) {
+            &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
+            &scantron_upload_delete($request,$symb);
         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
             $request->print(&checkscantron_results($request,$symb));
         } elsif ($command eq 'downloadfilesselect' && $perm{'vgr'}) {
-            &startpage($request,$symb,[{href=>'', text=>'Select which submissions to download'}]);
+            my $js = &part_selector_js();
+            my $onload = "toggleParts('gradingMenu');";
+            &startpage($request,$symb,[{href=>'', text=>'Select which submissions to download'}],
+                       undef,undef,undef,undef,undef,$js,$onload);
             $request->print(&submit_options_download($request,$symb));
          } elsif ($command eq 'downloadfileslink' && $perm{'vgr'}) {
             &startpage($request,$symb,
    [{href=>&href_symb_cmd($symb,'downloadfilesselect'), text=>'Select which submissions to download'},
-    {href=>'', text=>'Download submitted files'}]);
+    {href=>'', text=>'Download submitted files'}],
+               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 eq 'initialpassback') {
+            &startpage($request,$symb,[{href=>'', text=>'Choose Launcher'}],undef,1);
+            $request->print(&initialpassback($request,$symb));
+        } elsif ($command eq 'passback') {
+            &startpage($request,$symb,
+                       [{href=>&href_symb_cmd($symb,'initialpassback'), text=>'Choose Launcher'},
+                        {href=>'', text=>'Types of User'}],undef,1);
+            $request->print(&passback_filters($request,$symb));
+        } elsif ($command eq 'passbacknames') {
+            my $chosen;
+            if ($env{'form.passback'} ne '') {
+                if ($env{'form.passback'} eq &unescape($env{'form.passback'})) {
+                    $env{'form.passback'} = &escape($env{'form.passback'} );
+                }
+                $chosen = &HTML::Entities::encode($env{'form.passback'},'<>"&');
+            }
+            &startpage($request,$symb,
+                       [{href=>&href_symb_cmd($symb,'initialpassback'), text=>'Choose Launcher'},
+                        {href=>&href_symb_cmd($symb,'passback').'&amp;passback='.$chosen, text=>'Types of User'},
+                        {href=>'', text=>'Select Users'}],undef,1);
+            $request->print(&names_for_passback($request,$symb));
+        } elsif ($command eq 'passbackscores') {
+            my ($chosen,$stu_status);
+            if ($env{'form.passback'} ne '') {
+                if ($env{'form.passback'} eq &unescape($env{'form.passback'})) {
+                    $env{'form.passback'} = &escape($env{'form.passback'} );
+                }
+                $chosen = &HTML::Entities::encode($env{'form.passback'},'<>"&');
+            }
+            if ($env{'form.Status'}) {
+                $stu_status = &HTML::Entities::encode($env{'form.Status'});
+            }
+            &startpage($request,$symb,
+                       [{href=>&href_symb_cmd($symb,'initialpassback'), text=>'Choose Launcher'},
+                        {href=>&href_symb_cmd($symb,'passback').'&amp;passback='.$chosen, text=>'Types of User'},
+                        {href=>&href_symb_cmd($symb,'passbacknames').'&amp;Status='.$stu_status.'&amp;passback='.$chosen, text=>'Select Users'},
+                        {href=>'', text=>'Execute Passback'}],undef,1);
+            $request->print(&do_passback($request,$symb));
 	} elsif ($command) {
             &startpage($request,$symb,[{href=>'', text=>'Access denied'}]);
 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
@@ -10937,7 +13125,7 @@ sub handler {
     }
     if ($env{'form.inhibitmenu'}) {
         $request->print(&Apache::loncommon::end_page());
-    } else {
+    } elsif ($env{'request.course.id'}) {
         &Apache::lonquickgrades::endGradeScreen($request);
     }
     &reset_caches();
@@ -11105,8 +13293,8 @@ Side Effects: None.
          - missingbubble - array ref of the bubble lines that have missing
                            bubble errors
 
-   $randomorder - True if exam folder has randomorder set
-   $randompick  - True if exam folder has randompick set
+   $randomorder - True if exam folder (or a sub-folder) has randomorder set
+   $randompick  - True if exam folder (or a sub-folder) has randompick set
    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
                      for current line to question number used for same question
                      in "Master Seqence" (as seen by Course Coordinator).
@@ -11175,7 +13363,12 @@ Side Effects: None.
 =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() :