--- loncom/homework/grades.pm	2020/05/20 22:02:57	1.770
+++ loncom/homework/grades.pm	2024/12/03 23:34:10	1.796
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Grading handler
 #
-# $Id: grades.pm,v 1.770 2020/05/20 22:02:57 raeburn Exp $
+# $Id: grades.pm,v 1.796 2024/12/03 23:34:10 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);
 
@@ -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();
@@ -505,7 +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 $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
@@ -533,12 +666,16 @@ sub getclasslist {
     #
     my %sections;
     my %fullnames;
+    my %passback;
     my ($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 $end      = 
@@ -625,6 +762,27 @@ sub getclasslist {
                 }
             }
         }
+        if ($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)) {
@@ -640,7 +798,7 @@ sub getclasslist {
 	}
     }
     my @sections = sort(keys(%sections));
-    return ($classlist,\@sections,\%fullnames);
+    return ($classlist,\@sections,\%fullnames,\%passback);
 }
 
 sub canmodify {
@@ -903,12 +1061,617 @@ sub verifyreceipt {
     return $string;
 }
 
+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 $sigmethod = 'HMAC-SHA1';
+                            my $type = 'linkprot';
+                            my $clientip = &Apache::lonnet::get_requestor_ip();
+                            my $lonhost = $Apache::lonnet::perlvar{'lonHostID'};
+                            my $ip = &Apache::lonnet::get_host_ip($lonhost);
+                            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,$crsdef,$type,$ltinum,$keynum,$id,
+                                                                       $url,$scoretype,$sigmethod,$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' => $ip,
+                                                 'host' => $lonhost,
+                                                 'protector' => $linkprotector,
+                                                 'deeplink' => $linkuri,
+                                                 'scope' => $scope,
+                                                 'url' => $url,
+                                                 'id' => $id,
+                                                 'clientip' => $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,$uname,'',$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'   => $type,
+                                            'pbscope'  => $pbscope,
+                                            'pbmap'    => $pbmap,
+                                            'pbsymb'   => $pbsymb,
+                                            'format'   => $scoretype,
+                                            'scope'    => $scope,
+                                            'clientip' => $clientip,
+                                            'linkprot' => $linkprotector,
+                                            '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')).
+           $shownscope.      
+           &Apache::lonhtmlcommon::row_closure(1).
+           &Apache::lonhtmlcommon::end_pick_box().'</p>'."\n";
+}
+
 #--- This is called by a number of programs.
 #--- Called from the Grading Menu - View/Grade an individual student
 #--- Also called directly when one clicks on the subm button 
 #    on the problem page.
 sub listStudents {
-    my ($request,$symb,$submitonly) = @_;
+    my ($request,$symb,$submitonly,$divforres) = @_;
 
     my $is_tool   = ($symb =~ /ext\.tool$/);
     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
@@ -921,37 +1684,22 @@ sub listStudents {
 
     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';
@@ -963,8 +1711,8 @@ 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'))
@@ -979,7 +1727,6 @@ 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;
@@ -999,7 +1746,7 @@ 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".
@@ -1018,48 +1765,77 @@ 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.");
@@ -1210,7 +1986,55 @@ 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) = @_;
@@ -1447,8 +2271,8 @@ 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);
@@ -1494,55 +2318,17 @@ 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',
@@ -1552,29 +2338,11 @@ 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";
@@ -1584,26 +2352,6 @@ 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();
@@ -1714,6 +2462,107 @@ 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;
@@ -1904,7 +2753,8 @@ 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 $part_response_id (@part_response_id) {
@@ -2010,7 +2860,7 @@ sub files_exist {
         my ($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) =
 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
@@ -2046,33 +2896,23 @@ sub download_all_link {
 sub submit_download_link {
     my ($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;
+    }
+    my @chosenparts = &Apache::loncommon::get_env_multiple('form.vPart');
+    if (@chosenparts) {
+        $request->print(&showResourceInfo($symb,$partlist,$responseType,
+                                          undef,undef,1));
     }
-    if (($numupload) || ($numessay)) {
+    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'};
@@ -2081,10 +2921,12 @@ 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'));
@@ -2113,14 +2955,14 @@ 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);
 
@@ -2134,11 +2976,22 @@ 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').
@@ -2146,8 +2999,17 @@ 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.
@@ -2164,24 +3026,27 @@ 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'));
 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
@@ -2195,24 +3060,23 @@ sub submission {
 			'<input type="hidden" name="vProb"      value="'.$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="'.
@@ -2225,8 +3089,7 @@ 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',
@@ -2234,7 +3097,7 @@ sub submission {
                           list => 'List',
                           past => 'Paste Selection to List',
                           high => 'Highlight Attribute',
-                     );    
+                     );
 #
 # Print out the keyword options line
 #
@@ -2314,12 +3177,6 @@ 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 />'));
@@ -2332,100 +3189,238 @@ 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]',
@@ -2435,8 +3430,8 @@ 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'}) {
@@ -2444,7 +3439,7 @@ 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">'.
@@ -2468,21 +3463,21 @@ 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 {
@@ -2493,162 +3488,37 @@ 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 {
@@ -2710,18 +3580,51 @@ 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'});
@@ -2784,7 +3687,7 @@ 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.
@@ -2991,13 +3894,31 @@ 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 $ctr = 0;
 	while ($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,$ctr,undef,undef,\%queueable);
 	    if ($errorflag eq 'no_score') {
 		$ctr++;
 		next;
@@ -3052,7 +3973,7 @@ sub processHandGrade {
 		    foreach my $collaborator (@collaborators) {
 			my ($errorflag,$pts,$wgt) = 
 			    &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;
@@ -3074,13 +3995,12 @@ sub processHandGrade {
 	}
     }
 
-#    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'};
@@ -3088,7 +4008,9 @@ 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
@@ -3103,17 +4025,20 @@ 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') {
@@ -3153,7 +4078,6 @@ 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);
 	}
@@ -3164,14 +4088,7 @@ 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);
@@ -3229,7 +4146,7 @@ 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) = @_;
     my @version_parts;
     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 					   $env{'request.course.id'});
@@ -3341,7 +4258,7 @@ sub saveHandGrade {
 	&Apache::lonnet::cstore(\%newrecord,$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,
@@ -3381,7 +4298,7 @@ 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 ''
@@ -3389,7 +4306,9 @@ 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, $part);
+            }
 	}
     }
     if ( !@ungraded_parts ) {
@@ -3424,7 +4343,7 @@ sub handback_files {
 		        &Apache::lonnet::file_name_version_ext($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);
@@ -3588,8 +4507,8 @@ sub version_portfiles {
             $$record{$key} = join(',',@versioned_portfiles);
             push(@returned_keys,$key);
         }
-    } 
-    return (@returned_keys);   
+    }
+    return (@returned_keys);
 }
 
 #--------------------------------------------------------------------------------------
@@ -3808,7 +4727,26 @@ 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) {
@@ -3884,7 +4822,6 @@ 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;
 
@@ -4001,7 +4938,7 @@ 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 $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
@@ -4264,6 +5201,7 @@ sub editgrades {
 	&Apache::loncommon::end_data_table_header_row();
     my @noupdate;
     my ($updateCtr,$noupdateCtr) = (1,1);
+    my ($got_types,%queueable);
     for ($i=0; $i<$env{'form.total'}; $i++) {
 	my $user = $env{'form.ctr'.$i};
 	my ($uname,$udom)=split(/:/,$user);
@@ -4363,14 +5301,33 @@ 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,
@@ -5241,10 +6198,14 @@ 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);
@@ -5480,6 +6441,7 @@ 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);
@@ -5489,7 +6451,20 @@ sub updateGradeByPage {
 	    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;
 		my $partial = $newpts/$wgt;
@@ -5555,7 +6530,7 @@ 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) {
@@ -6467,9 +7442,12 @@ 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;
@@ -6477,6 +7455,14 @@ 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 {
             $resource_error = 1;
             last;
@@ -8488,6 +9474,17 @@ sub scantron_validate_doublebubble {
     if (ref($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) {
@@ -8671,6 +9668,17 @@ 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) {
@@ -8812,10 +9820,21 @@ 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 '';
@@ -8823,7 +9842,7 @@ 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 '';
@@ -8978,11 +9997,16 @@ 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'}) {
@@ -9297,14 +10321,14 @@ 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";
@@ -9491,7 +10515,7 @@ 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 = $config[6];
@@ -9861,6 +10885,17 @@ sub checkscantron_results {
     if (ref($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);
@@ -10179,7 +11214,8 @@ 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 {
@@ -10214,37 +11250,47 @@ 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',
                                 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.'
                         }]},
@@ -10253,32 +11299,45 @@ 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;
     $Str .= '<form method="post" action="" name="gradingMenu">';
@@ -10336,11 +11395,30 @@ sub submit_options_download {
     my ($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').'
@@ -10387,6 +11465,14 @@ 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>
@@ -11118,7 +12204,7 @@ 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 = (
@@ -11128,28 +12214,101 @@ 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));
+        $r->print(&Apache::loncommon::start_page('Grading',$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();
@@ -11202,24 +12361,49 @@ 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);
             }
@@ -11230,10 +12414,14 @@ 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'},
@@ -11242,8 +12430,12 @@ 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,$symb);
@@ -11252,7 +12444,10 @@ sub handler {
             &startpage($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,$symb,[{href=>"", text=>"Grading table"}]);
@@ -11350,13 +12545,56 @@ sub handler {
             &startpage($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>');
@@ -11535,8 +12773,8 @@ 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).