--- loncom/interface/statistics/lonstudentassessment.pm	2005/04/07 07:34:52	1.122
+++ loncom/interface/statistics/lonstudentassessment.pm	2010/02/12 15:11:08	1.150.2.4
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentassessment.pm,v 1.122 2005/04/07 07:34:52 albertel Exp $
+# $Id: lonstudentassessment.pm,v 1.150.2.4 2010/02/12 15:11:08 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -50,15 +50,20 @@ Presents assessment data about a student
 package Apache::lonstudentassessment;
 
 use strict;
-use Apache::lonstatistics;
-use Apache::lonhtmlcommon;
+use Apache::lonstatistics();
+use Apache::lonhtmlcommon();
 use Apache::loncommon();
 use Apache::loncoursedata;
 use Apache::lonnet; # for logging porpoises
 use Apache::lonlocal;
+use Apache::grades();
+use Apache::lonmsgdisplay();
 use Time::HiRes;
 use Spreadsheet::WriteExcel;
 use Spreadsheet::WriteExcel::Utility();
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+ 
 
 #######################################################
 #######################################################
@@ -145,6 +150,7 @@ sub BuildStudentAssessmentPage {
                                'chartoutputmode' => 'scalar',
                                'chartoutputdata' => 'scalar',
                                'Section' => 'array',
+                               'Groups' => 'array',
                                'StudentData' => 'array',
                                'Maps' => 'array');
     &Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
@@ -242,14 +248,14 @@ sub next_and_previous_buttons {
     if (defined($previous)) {
         my $sname = $previous->{'username'}.':'.$previous->{'domain'};
         $previousbutton .= '<input type="button" value="'.
-            'Previous Student ('.
-            $previous->{'username'}.'@'.$previous->{'domain'}.')'.
+            &mt('Previous Student ([_1])',
+            $previous->{'username'}.':'.$previous->{'domain'}).
             '" onclick="document.Statistics.SelectedStudent.value='.
             "'".$sname."'".';'.
             'document.Statistics.submit();" />';
     } else {
         $previousbutton .= '<input type="button" value="'.
-            'Previous student (none)'.'" />';
+            &mt('Previous student').'" disabled="disabled" />';
     }
     #
     # Build the next student link
@@ -258,19 +264,19 @@ sub next_and_previous_buttons {
     if (defined($next)) {
         my $sname = $next->{'username'}.':'.$next->{'domain'};
         $nextbutton .= '<input type="button" value="'.
-            'Next Student ('.
-            $next->{'username'}.'@'.$next->{'domain'}.')'.
+            &mt('Next Student ([_1])',
+            $next->{'username'}.':'.$next->{'domain'}).
             '" onclick="document.Statistics.SelectedStudent.value='.
-            "'".$sname."'".';'.
+            "'$sname'".';'.
             'document.Statistics.submit();" />';
     } else {
         $nextbutton .= '<input type="button" value="'.
-            'Next student (none)'.'" />';
+            &mt('Next student').'" disabled="disabled" />';
     }
     #
     # Build the 'all students' button
     my $all = '';
-    $all .= '<input type="button" value="All Students" '.
+    $all .= '<input type="button" value="'.&mt('All Students').'" '.
             '" onclick="document.Statistics.SelectedStudent.value='.
             "''".';'.'document.Statistics.submit();" />';
     $Str .= $previousbutton.('&nbsp;'x5).$all.('&nbsp;'x5).$nextbutton;
@@ -312,14 +318,24 @@ the chart page.
 #######################################################
 sub CreateInterface {
     my $Str = '';
-    $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
+    $Str .= &Apache::lonhtmlcommon::breadcrumbs('Chart','Chart_Description:Chart_Sections:Chart_Student_Data:Chart_Enrollment_Status:Chart_Sequences:Chart_Output_Formats:Chart_Output_Data');
 #    $Str .= &CreateLegend();
     $Str .= '<table cellspacing="5">'."\n";
     $Str .= '<tr>';
-    $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
-    $Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
-    $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
-    $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Sections').'</b>'.
+	&Apache::loncommon::help_open_topic("Chart_Sections").
+	'</td>';
+    $Str .= '<td align="center"><b>'.&mt('Groups').'</b>'.
+	'</td>';
+    $Str .= '<td align="center"><b>'.&mt('Student Data').'</b>'.
+	&Apache::loncommon::help_open_topic("Chart_Student_Data").
+	'</td>';
+    $Str .= '<td align="center"><b>'.&mt('Access Status').'</b>'.
+	&Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
+	'</td>';
+    $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b>'.
+	&Apache::loncommon::help_open_topic("Chart_Sequences").
+	'</td>';
     $Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
         &Apache::loncommon::help_open_topic("Chart_Output_Formats").
         '</td>';
@@ -331,6 +347,8 @@ sub CreateInterface {
     $Str .= '<tr><td align="center">'."\n";
     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
     $Str .= '</td><td align="center">';
+    $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
+    $Str .= '</td><td align="center">';
     $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
                                                       5,undef);
     $Str .= '</td><td>'."\n";
@@ -343,19 +361,20 @@ sub CreateInterface {
     $Str .= &CreateAndParseOutputDataSelector();
     $Str .= '</td></tr>'."\n";
     $Str .= '</table>'."\n";
-    $Str .= '<input type="submit" name="Generate Chart" value="'.
-        &mt('Generate Chart').'" />';
-    $Str .= '&nbsp;'x5;
+    $Str .= '<p>'.
+            &mt('Status:').' '.
+            '<input type="text" name="stats_status" size="60" value="" readonly="readonly" />'.
+            '</p>';
     $Str .= '<input type="submit" name="selectstudent" value="'.
         &mt('Select One Student').'" />';
     $Str .= '&nbsp;'x5;
     $Str .= '<input type="submit" name="ClearCache" value="'.
         &mt('Clear Caches').'" />';
-    $Str .= '&nbsp;'x5;
-    $Str .= 
-        &mt('Status [_1]',
-            '<input type="text" name="stats_status" size="60" value="" />');
-    $Str .= '<br />';
+    $Str .= '<p>'.
+            '<input type="submit" name="Generate Chart"'.
+            ' value="'.&mt('Generate Chart').'" />'.
+            '</p>';
+
     return $Str;
 }
 
@@ -472,6 +491,7 @@ my @OutputDataOptions =
        grand_maximum => 1,
        summary_table => 1,
        maximum_row => 1,
+       ignore_weight => 0,
        shortdesc => 'Total Score and Maximum Possible for each '.
            'Sequence or Folder',
        longdesc => 'The score of each student as well as the '.
@@ -490,6 +510,7 @@ my @OutputDataOptions =
        grand_maximum => 1,
        summary_table => 1,
        maximum_row => 1,
+       ignore_weight => 0,
        shortdesc => 'Score on each Problem Part',
        longdesc =>'The students score on each problem part, computed as'.
            'the part weight * part awarded',
@@ -507,6 +528,7 @@ my @OutputDataOptions =
        grand_maximum => 0,
        summary_table => 0,
        maximum_row => 0,
+       ignore_weight => 0,
        shortdesc => 'Number of Tries before success on each Problem Part',
        longdesc =>'The number of tries before success on each problem part.',
        non_html_notes => 'negative values indicate an incorrect problem',
@@ -524,7 +546,8 @@ my @OutputDataOptions =
        grand_maximum => 1,
        summary_table => 1,
        maximum_row => 0,
-       shortdesc => 'Number of Problem Parts completed successfully.',
+       ignore_weight => 1,
+       shortdesc => 'Number of Problem Parts completed successfully',
        longdesc => 'The Number of Problem Parts completed successfully and '.
            'the maximum possible for each student',
        },
@@ -532,7 +555,8 @@ my @OutputDataOptions =
 
 sub HTMLifyOutputDataDescriptions {
     my $Str = '';
-    $Str .= "<h2>Output Data</h2>\n";
+    $Str .= '<h2>'.&mt('Output Data').'</h2>'."\n";
+
     $Str .= "<dl>\n";
     foreach my $option (@OutputDataOptions) {
         $Str .= '    <dt>'.$option->{'name'}.'</dt>';
@@ -622,31 +646,48 @@ Return a line of the chart for a student
     my @sequences;
     my $navmap; # Have to keep this around since weakref is a bit zealous
 
+sub html_cleanup {
+    undef(%prog_state);
+    undef(%width);
+    #
+    undef($navmap);
+    undef(@sequences);
+}
+
 sub html_initialize {
     my ($r) = @_;
     #
     $padding = ' 'x3;
     $count = 0;
     $nodata_count = 0;
-    undef(%prog_state);
-    undef(%width);
-    #
-    undef($navmap);
-    undef(@sequences);
+    &html_cleanup();
     ($navmap,@sequences) = 
         &Apache::lonstatistics::selected_sequences_with_assessments();
     if (! ref($navmap)) {
         # Unable to get data, so bail out
-        $r->print("<h3>".
+        $r->print('<p class="LC_error">'.
                   &mt('Unable to retrieve course information.').
-                  '</h3>');
+                  '</p>');
     }
+
+    # If we're showing links, show a checkbox to open in new
+    # windows.
+    if ($show_links ne 'no') {
+        my $labeltext = &mt('Show links in new window:');
+        $r->print(<<NEW_WINDOW_CHECKBOX);
+<script type="text/javascript">new_window = true;</script>
+<p><label>$labeltext 
+<input type="checkbox" checked="checked" onclick="new_window=this.checked" />
+</label></p>
+NEW_WINDOW_CHECKBOX
+    }
+
     #
     $r->print("<h3>".$env{'course.'.$env{'request.course.id'}.'.description'}.
-              "&nbsp;&nbsp;".localtime(time)."</h3>");
+              "&nbsp;&nbsp;".&Apache::lonlocal::locallocaltime(time)."</h3>");
     #
     if ($chosen_output->{'base'} !~ /^final table/) {
-        $r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");        
+        $r->print("<h3>".&mt($chosen_output->{'shortdesc'})."</h3>");        
     }
     my $Str = "<pre>\n";
     # First, the @StudentData fields need to be listed
@@ -710,6 +751,73 @@ sub html_initialize {
     $Str .= "<pre>";
     $r->print($Str);
     $r->rflush();
+
+    $r->print(<<JS);
+<script type="text/javascript">
+// get the left offset of a given widget as an absolute position
+function getLeftOffset (element) {
+    return collect(element, "offsetLeft");
+}
+
+// get the top offset of a given widget as an absolute position
+function getTopOffset (element) {
+    return collect(element, "offsetTop");
+}
+
+function collect(element, att) {
+    var val = 0;
+    while(element) {
+        val += element[att];
+        element = element.offsetParent;
+    }
+    return val;
+}
+
+var currentDiv;
+var currentElement;
+function popup_score(element, score) {
+    popdown_score();
+    var left = getLeftOffset(element);
+    var top = getTopOffset(element);
+    var div = document.createElement("div");
+    div.className = "LC_chrt_popup";
+    div.appendChild(document.createTextNode(score));
+    div.style.position = "absolute";
+    div.style.top = (top - 25) + "px";
+    div.style.left = (left - 10) + "px";
+    currentDiv = div;
+    document.body.insertBefore(div, document.body.childNodes[0]);
+    element.className = "LC_chrt_popup_up";
+    currentElement = element;
+}
+
+function popdown_score() {
+    if (currentDiv) {
+        document.body.removeChild(currentDiv);
+    }
+    if (currentElement) {
+        currentElement.className = 'LC_chrt_popup_exists';
+    }
+    currentDiv = undefined;
+}
+</script>
+JS
+
+    #
+    # Let the user know what we are doing
+    my $studentcount = scalar(@Apache::lonstatistics::Students); 
+    if ($env{'form.SelectedStudent'}) {
+        $studentcount = '1';
+    }
+    #
+    # Initialize progress window
+    %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
+        ($r,'HTML Chart Status',
+         'HTML Chart Progress', $studentcount,
+         'inline',undef,'Statistics','stats_status');
+    #
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
+                                          'Processing first student');
     return;
 }
 
@@ -738,12 +846,20 @@ sub html_outputstudent {
     my @tmp = &Apache::loncoursedata::get_current_state
         ($student->{'username'},$student->{'domain'},undef,
          $env{'request.course.id'});
-    if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
+    if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:(.*)/)) {
         %StudentsData = @tmp;
-    }
-    if (scalar(@tmp) < 1) {
+    } else {
+	my $error = $1;
+	if (scalar(@tmp) < 1) {
+	    $Str .= '<span class="LC_warning">'
+                   .&mt('No Course Data')
+                   .'</span>'."\n";
+	} else {
+            $Str .= '<span class="LC_error">'
+                   .&mt('Error getting student data ([_1])',$error)
+                   .'</span>'."\n";
+	}
         $nodata_count++;
-        $Str .= '<font color="blue">No Course Data</font>'."\n";
         $r->print($Str);
         $r->rflush();
         return;
@@ -762,7 +878,8 @@ sub html_outputstudent {
         } else {
             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                 &student_performance_on_sequence($student,\%StudentsData,
-                                                 $navmap,$seq,$show_links);
+                                                 $navmap,$seq,$show_links,
+                                                 $chosen_output->{ignore_weight});
         }
         my $ratio='';
         if ($chosen_output->{'every_problem'} && 
@@ -822,6 +939,7 @@ sub html_outputstudent {
     $r->print($Str);
     #
     $r->rflush();
+    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
     return;
 }    
 
@@ -839,18 +957,19 @@ sub html_finish {
         }
     }
     $r->rflush();
-    undef($navmap);
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+    &html_cleanup();
     return;
 }
 
 sub StudentAverageTotal {
     my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
-    $Str .= '<table border=2 cellspacing="1">'."\n";
-    $Str .= '<tr>'.
+    $Str .= &Apache::loncommon::start_data_table();
+    $Str .= &Apache::loncommon::start_data_table_header_row().
         '<th>'.&mt('Title').'</th>'.
         '<th>'.&mt('Average').'</th>'.
         '<th>'.&mt('Maximum').'</th>'.
-        '</tr>'.$/;
+        &Apache::loncommon::end_data_table_header_row().$/;
     foreach my $seq (@sequences) {
         my $symb = $seq->symb;
         my $ave;
@@ -864,46 +983,53 @@ sub StudentAverageTotal {
         }
         my $max = $Statistics->{$symb}->{'max'};
         $ave = sprintf("%.2f",$ave);
-        $Str .= '<tr><td>'.$seq->compTitle.'</td>'.
+        $Str .= &Apache::loncommon::start_data_table_row().
+            '<td>'.$seq->compTitle.'</td>'.
             '<td align="right">'.$ave.'&nbsp;</td>'.
-            '<td align="right">'.$max.'&nbsp;'.'</td></tr>'."\n";
+            '<td align="right">'.$max.'&nbsp;'.'</td>'.
+            &Apache::loncommon::end_data_table_row()."\n";
     }
-    $Str .= "</table>\n";
+    $Str .= &Apache::loncommon::end_data_table()."\n";
     return $Str;
 }
 
 sub SingleStudentTotal {
     return if (! defined($navmap));
     my $student = &Apache::lonstatistics::current_student();
-    my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
+    my $Str = '<h3>'.&mt('Summary table for [_1] ([_2])',
                          $student->{'fullname'},
-                         $student->{'username'},$student->{'domain'}).'</h3>';
+                         $student->{'username'}.':'.$student->{'domain'}).'</h3>';
     $Str .= $/;
-    $Str .= '<table border=2 cellspacing="1">'."\n";
+    $Str .= &Apache::loncommon::start_data_table()."\n";
     $Str .= 
-        '<tr>'.
+        &Apache::loncommon::start_data_table_header_row().
         '<th>'.&mt('Sequence or Folder').'</th>';
     if ($chosen_output->{'base'} eq 'tries') {
         $Str .= '<th>'.&mt('Parts Correct').'</th>';
     } else {
         $Str .= '<th>'.&mt('Score').'</th>';
     }
-    $Str .= '<th>'.&mt('Maximum').'</th>'."</tr>\n";
+    $Str .= '<th>'.&mt('Maximum').'</th>'.
+            &Apache::loncommon::end_data_table_header_row()."\n";
     my $total = 0;
     my $total_max = 0;
     foreach my $seq (@sequences) {
         my $value = $Statistics->{$seq->symb}->{'score'};
         my $max = $Statistics->{$seq->symb}->{'max'};
-        $Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
+        $Str .= &Apache::loncommon::start_data_table_row().
+            '<td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
             '<td align="right">'.$value.'</td>'.
-                '<td align="right">'.$max.'</td></tr>'."\n";
+            '<td align="right">'.$max.'</td>'.
+            &Apache::loncommon::end_data_table_row()."\n";
         $total += $value;
         $total_max +=$max;
     }
-    $Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
+    $Str .= &Apache::loncommon::start_data_table_row().
+        '<td><b>'.&mt('Total').'</b></td>'.
         '<td align="right">'.$total.'</td>'.
-        '<td align="right">'.$total_max."</td></tr>\n";
-    $Str .= "</table>\n";
+        '<td align="right">'.$total_max.'</td>'.
+        &Apache::loncommon::end_data_table_row()."\n";
+    $Str .= &Apache::loncommon::end_data_table()."\n";
     return $Str;
 }
 
@@ -946,8 +1072,7 @@ my %formula_data;
 my $navmap;
 my @sequences;
 
-sub excel_initialize {
-    my ($r) = @_;
+sub excel_cleanup {
     #
     undef ($excel_sheet);
     undef ($excel_workbook);
@@ -963,6 +1088,12 @@ sub excel_initialize {
     #
     undef($navmap);
     undef(@sequences);
+}
+
+sub excel_initialize {
+    my ($r) = @_;
+
+    &excel_cleanup();
     ($navmap,@sequences) = 
         &Apache::lonstatistics::selected_sequences_with_assessments();
     if (! ref($navmap)) {
@@ -1043,16 +1174,16 @@ sub excel_initialize {
     my $sectionstring = '';
     my @Sections = &Apache::lonstatistics::get_selected_sections();
     $excel_sheet->write($header_row,$cols_output++,
-                        &Apache::lonstatistics::section_and_enrollment_description('plain text'),
+                        &Apache::lonstatistics::section_and_enrollment_description('plaintext'),
                         $format->{'h3'});
     #
     # Put the date in there too
     $excel_sheet->write($header_row,$cols_output++,
-                        'Compiled on '.localtime(time),$format->{'h3'});
+                        &mt('Compiled on [_1]',&Apache::lonlocal::locallocaltime(time)),$format->{'h3'});
     #
     $cols_output = 0;
     $excel_sheet->write($description_row,$cols_output++,
-                        $chosen_output->{'shortdesc'},
+                        &mt($chosen_output->{'shortdesc'}),
                         $format->{'b'});
     #
     $cols_output = 0;
@@ -1118,9 +1249,11 @@ sub excel_initialize {
             ! defined($formula_data{$symb}->{'Excel:endcell'})) {
             $formula_data{$symb}->{'Excel:endcell'} = $formula_data{$symb}->{'Excel:startcell'};
         }
+
+        my $start = $formula_data{$symb}->{'Excel:startcell'};
+        my $end = $formula_data{$symb}->{'Excel:endcell'};
         $formula_data{$symb}->{'Excel:sum'}= $excel_sheet->store_formula
-            ('=SUM('.$formula_data{$symb}->{'Excel:startcell'}.
-             ':'.$formula_data{$symb}->{'Excel:endcell'}.')');
+            ("=IF(COUNT($start\:$end),SUM($start\:$end),\"\")");
         # Determine cell the score is held in
         $formula_data{$symb}->{'Excel:scorecell'} = 
             &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
@@ -1128,17 +1261,17 @@ sub excel_initialize {
         $formula_data{$symb}->{'Excel:scorecol'}=$cols_output;
         if ($chosen_output->{'base'} eq 'parts correct total') {
             $excel_sheet->write($resource_name_row,$cols_output++,
-                                'parts correct',
+                                &mt('parts correct'),
                                 $format->{'bold'});
         } elsif ($chosen_output->{'sequence_sum'}) {
             if ($chosen_output->{'correct'}) {
                 # Only reporting the number correct, so do not call it score
                 $excel_sheet->write($resource_name_row,$cols_output++,
-                                    'sum',
+                                    &mt('sum'),
                                     $format->{'bold'});
             } else {
                 $excel_sheet->write($resource_name_row,$cols_output++,
-                                    'score',
+                                    &mt('score'),
                                     $format->{'bold'});
             }
         }
@@ -1148,7 +1281,7 @@ sub excel_initialize {
             ($first_data_row,$cols_output-1);
         if ($chosen_output->{'sequence_max'}) {
             $excel_sheet->write($resource_name_row,$cols_output,
-                                'maximum',
+                                &mt('maximum'),
                                 $format->{'bold'});
             $formula_data{$symb}->{'Excel:maxcell'} = 
                 &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
@@ -1162,11 +1295,11 @@ sub excel_initialize {
         }
     }
     if ($chosen_output->{'grand_total'}) {
-        $excel_sheet->write($resource_name_row,$cols_output++,'Total',
+        $excel_sheet->write($resource_name_row,$cols_output++,&mt('Total'),
                             $format->{'bold'});
     }
     if ($chosen_output->{'grand_maximum'}) {
-        $excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
+        $excel_sheet->write($resource_name_row,$cols_output++,&mt('Max. Total'),
                             $format->{'bold'});
     }
     $total_formula = $excel_sheet->store_formula($total_formula_string);
@@ -1205,7 +1338,7 @@ sub excel_initialize {
                     $weight = 1;
                     if ($chosen_output->{'scores'}) {
                         $weight = &Apache::lonnet::EXT
-                            ('resource.'.$part.'.weight',$resource->{'symb'},
+                            ('resource.'.$part.'.weight',$resource->symb,
                              undef,undef,undef);
                         if (!defined($weight) || ($weight eq '')) { 
                             $weight=1;
@@ -1229,7 +1362,7 @@ sub excel_initialize {
 		     &Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$formula_data{$symb}->{'Excel:endcol'}));
                 $excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
                                              $formula_data{$symb}->{'Excel:sum'},undef,
-					     %replaceCells);
+					     %replaceCells, %replaceCells);
 			
             } elsif ($chosen_output->{'sequence_sum'}) {
                 $excel_sheet->write($maximum_data_row,$cols_output++,$max);
@@ -1257,17 +1390,17 @@ sub excel_initialize {
     if ($chosen_output->{'summary_table'}) {
         $cols_output = 0;
         $excel_sheet->write($summary_header_row,$cols_output++,
-                            'Summary Table',$format->{'bold'});
+                            &mt('Summary Table'),$format->{'bold'});
         if ($chosen_output->{'maximum_row'}) {
             $excel_sheet->write($summary_header_row,$cols_output++,
-                                'Maximum',$format->{'bold'});
+                                &mt('Maximum'),$format->{'bold'});
         }
         $excel_sheet->write($summary_header_row,$cols_output++,
-                            'Average',$format->{'bold'});
+                            &mt('Average'),$format->{'bold'});
         $excel_sheet->write($summary_header_row,$cols_output++,
-                            'Median',$format->{'bold'});
+                            &mt('Median'),$format->{'bold'});
         $excel_sheet->write($summary_header_row,$cols_output++,
-                            'Std Dev',$format->{'bold'});
+                            &mt('Std Dev'),$format->{'bold'});
         my $row = $summary_header_row+1;
         foreach my $seq (@sequences) {
             my $symb = $seq->symb;
@@ -1307,14 +1440,10 @@ sub excel_initialize {
     if ($env{'form.SelectedStudent'}) {
         $studentcount = '1';
     }
-    if ($studentcount > 1) {
-        $r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
-                             $studentcount)."</h1>\n");
-    } else {
-        $r->print('<h1>'.
-                  &mt('Compiling Excel spreadsheet for 1 student').
-                  "</h1>\n");
-    }
+    $r->print('<p>'
+             .&mt('Compiling Excel spreadsheet for [quant,_1,student]...',$studentcount)
+            ."</p>\n"
+    );
     $r->rflush();
     #
     # Initialize progress window
@@ -1340,7 +1469,7 @@ sub excel_outputstudent {
     foreach my $field (@to_show) {
         my $value = $student->{$field};
         if ($field eq 'comments') {
-            $value = &Apache::lonmsg::retrieve_instructor_comments
+            $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
                 ($student->{'username'},$student->{'domain'});
         }
         $excel_sheet->write($rows_output,$cols_output++,$value);
@@ -1379,14 +1508,16 @@ sub excel_outputstudent {
         } else {
             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                 &student_performance_on_sequence($student,\%StudentsData,
-                                                 $navmap,$seq,'no');
+                                                 $navmap,$seq,'no',
+                                                 $chosen_output->{ignore_weight});
         } 
         if ($chosen_output->{'every_problem'}) {
             if ($chosen_output->{'correct'}) {
                 # only indiciate if each item is correct or not
                 foreach my $value (@$rawdata) {
-                    # nonzero means correct
-                    $value = 1 if ($value > 0);
+                    # positive means correct, 0 or negative means
+                    # incorrect
+                    $value = $value > 0 ? 1 : 0;
                     $excel_sheet->write($rows_output,$cols_output++,$value);
                 }
             } else {
@@ -1412,7 +1543,7 @@ sub excel_outputstudent {
             # The undef is for the format	    
 	    $excel_sheet->repeat_formula($rows_output,$cols_output++,
 					 $formula_data{$symb}->{'Excel:sum'},undef,
-					 %replaceCells);
+					 %replaceCells, %replaceCells);
         } elsif ($chosen_output->{'sequence_sum'}) {
             if ($score eq ' ') {
                 $cols_output++;
@@ -1448,22 +1579,21 @@ sub excel_outputstudent {
 sub excel_finish {
     my ($r) = @_;
     if ($request_aborted || ! defined($navmap) || ! defined($excel_sheet)) {
+	&excel_cleanup();
         return;
     }
     #
     # Write the excel file
     $excel_workbook->close();
-    my $c = $r->connection();
-    #
-    return if($c->aborted());
     #
     # Close the progress window
     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
     #
     # Tell the user where to get their excel file
     $r->print('<br />'.
-              '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
+              '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
     $r->rflush();
+    &excel_cleanup();
     return;
 }
 
@@ -1494,10 +1624,7 @@ my %prog_state; # progress window state
 my $navmap;
 my @sequences;
 
-sub csv_initialize{
-    my ($r) = @_;
-    # 
-    # Clean up
+sub csv_cleanup {
     undef($outputfile);
     undef($filename);
     undef($request_aborted);
@@ -1505,6 +1632,12 @@ sub csv_initialize{
     #
     undef($navmap);
     undef(@sequences);
+}
+
+sub csv_initialize{
+    my ($r) = @_;
+
+    &csv_cleanup();
     ($navmap,@sequences) = 
         &Apache::lonstatistics::selected_sequences_with_assessments();
     if (! ref($navmap)) {
@@ -1581,23 +1714,23 @@ END
         $sequence_row.='"",'x$count;
         if ($chosen_output->{'sequence_sum'}) {
             if($chosen_output->{'correct'}) {
-                $resource_row .= '"sum",';
+                $resource_row .= '"'.&mt('sum').'",';
             } else {
-                $resource_row .= '"score",';
+                $resource_row .= '"'.&mt('score').'",';
             }
         }
         if ($chosen_output->{'sequence_max'}) {
             $sequence_row.= '"",';
-            $resource_row .= '"maximum possible",';
+            $resource_row .= '"'.&mt('maximum possible').'",';
         }
     }
     if ($chosen_output->{'grand_total'}) {
         $sequence_row.= '"",';
-        $resource_row.= '"Total",';
+        $resource_row.= '"'.&mt('Total').'",';
     } 
     if ($chosen_output->{'grand_maximum'}) {
         $sequence_row.= '"",';
-        $resource_row.= '"Maximum",';
+        $resource_row.= '"'.&mt('Maximum').'",';
     } 
     chomp($sequence_row);
     chomp($resource_row);
@@ -1618,7 +1751,7 @@ sub csv_outputstudent {
     foreach my $field (@to_show) {
         my $value = $student->{$field};
         if ($field eq 'comments') {
-            $value = &Apache::lonmsg::retrieve_instructor_comments
+            $value = &Apache::lonmsgdisplay::retrieve_instructor_comments
                 ($student->{'username'},$student->{'domain'});
         }        
         $Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
@@ -1646,7 +1779,8 @@ sub csv_outputstudent {
         } else {
             ($performance,$performance_length,$score,$seq_max,$rawdata) =
                 &student_performance_on_sequence($student,\%StudentsData,
-                                                 $navmap,$seq,'no');
+                                                 $navmap,$seq,'no',
+                                                 $chosen_output->{ignore_weight});
         }
         if ($chosen_output->{'every_problem'}) {
             if ($chosen_output->{'correct'}) {
@@ -1690,26 +1824,37 @@ sub csv_outputstudent {
 sub csv_finish {
     my ($r) = @_;
     if ($request_aborted || ! defined($navmap) || ! defined($outputfile)) {
+	&csv_cleanup();
         return;
     }
     close($outputfile);
     #
-    my $c = $r->connection();
-    return if ($c->aborted());
-    #
     # Close the progress window
     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
     #
     # Tell the user where to get their csv file
     $r->print('<br />'.
-              '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
+              '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
     $r->rflush();
+    &csv_cleanup();
     return;
     
 }
 
 }
 
+# This function will return an HTML string including a star, with
+# a mouseover popup showing the "real" value. An optional second
+# argument lets you show something other than a star.
+sub show_star {
+    my $popup = shift;
+    my $symbol = shift || '*';
+    # Escape the popup for JS.
+    $popup =~ s/([^-a-zA-Z0-9:;,._ ()|!\/?=&*])/'\\' . sprintf("%lo", ord($1))/ge;
+    
+    return "<span class=\"LC_chrt_popup_exists\" onmouseover='popup_score(this, \"$popup\");return false;' onmouseout='popdown_score();return false;'>$symbol</span>";
+}
+
 #######################################################
 #######################################################
 
@@ -1775,12 +1920,12 @@ sub student_tries_on_sequence {
                 if ($status eq 'excused') {
                     $symbol = 'x';
                     $max--;
-                } elsif ($status eq 'correct_by_override') {
+                } elsif ($status eq 'correct_by_override' && !$resource->is_task()) {
                     $symbol = '+';
                     $sum++;
                 } elsif ($tries > 0) {
                     if ($tries > 9) {
-                        $symbol = '*';
+                        $symbol = show_star($tries);
                     } else {
                         $symbol = $tries;
                     }
@@ -1797,7 +1942,7 @@ sub student_tries_on_sequence {
                 } elsif ($status eq 'incorrect_by_override') {
                     $symbol = '-';
                 } elsif ($status eq 'ungraded_attempted') {
-                    $symbol = '#';
+                    $symbol = 'u';
                 } elsif ($status eq 'incorrect_attempted' ||
                          $tries > 0)  {
                     $symbol = '.';
@@ -1820,14 +1965,12 @@ sub student_tries_on_sequence {
             #
             if ( ($links eq 'yes' && $symbol ne ' ') ||
                  ($links eq 'all')) {
-                if (length($symbol) > 1) {
-                    &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1');
-                }
-                $symbol = '<a href="/adm/grades'.
-                    '?symb='.&Apache::lonnet::escape($resource->symb).
+                my $link = '/adm/grades'.
+                    '?symb='.&escape($resource->shown_symb).
                         '&student='.$student->{'username'}.
                             '&userdom='.$student->{'domain'}.
-                                '&command=submission">'.$symbol.'</a>';
+                                '&command=submission';
+                $symbol = &link($symbol, $link);
             }
             $value .= $symbol;
         }
@@ -1842,6 +1985,37 @@ sub student_tries_on_sequence {
     return ($Str,$performance_length,$sum,$max,\@TriesData);
 }
 
+=pod
+
+=item &link
+
+Inputs:
+
+=over 4
+
+=item $text
+
+=item $target
+
+=back
+
+Takes the text and creates a link to the $text that honors
+the value of 'new window' if clicked on, but uses a real 
+'href' so middle and right clicks still work.
+
+$target and $text are assumed to be already correctly escaped; i.e., it
+can be dumped out directly into the output stream as-is.
+
+=cut
+
+sub link {
+    my ($text,$target) = @_;
+    return 
+        "<a href='$target' onclick=\"t=this.href;if(new_window)"
+        ."{window.open(t)}else{return void(window."
+        ."location=t)};return false;\">$text</a>";
+}
+
 #######################################################
 #######################################################
 
@@ -1868,7 +2042,7 @@ Inputs:
 #######################################################
 #######################################################
 sub student_performance_on_sequence {
-    my ($student,$studentdata,$navmap,$seq,$links) = @_;
+    my ($student,$studentdata,$navmap,$seq,$links,$awarded_only) = @_;
     $links = 'no' if (! defined($links));
     my $Str = ''; # final result string
     my ($score,$max) = (0,0);
@@ -1882,11 +2056,14 @@ sub student_performance_on_sequence {
         my $resource_data = $studentdata->{$symb};
         foreach my $part (@{$resource->parts()}) {
             $partscore = undef;
-            my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
-                                              $symb,
-                                              $student->{'domain'},
-                                              $student->{'username'},
-                                              $student->{'section'});
+            my $weight;
+            if (!$awarded_only){
+                $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
+                                               $symb,
+                                               $student->{'domain'},
+                                               $student->{'username'},
+                                               $student->{'section'});
+            }
             if (!defined($weight) || ($weight eq '')) { 
                 $weight=1;
             }
@@ -1902,7 +2079,7 @@ sub student_performance_on_sequence {
                 $hasdata = 1;
             }
             #
-            $partscore = $weight*$awarded;
+            $partscore = &Apache::grades::compute_points($weight,$awarded);
             if (! defined($awarded)) {
                 $partscore = undef;
             }
@@ -1912,15 +2089,21 @@ sub student_performance_on_sequence {
                 $symbol = sprintf("%.0f",$symbol);
             }
             if (length($symbol) > 1) {
-                $symbol = '*';
+                $symbol = show_star($symbol);
             }
-            if (exists($resource_data->{'resource.'.$part.'.solved'})) {
+            if (exists($resource_data->{'resource.'.$part.'.solved'}) &&
+                $resource_data->{'resource.'.$part.'.solved'} ne '') {
                 my $status = $resource_data->{'resource.'.$part.'.solved'};
                 if ($status eq 'excused') {
                     $symbol = 'x';
                     $max -= $weight; # Do not count 'excused' problems.
+                } elsif ($status eq 'ungraded_attempted') {
+                    $symbol = 'u';
                 }
                 $hasdata = 1;
+            } elsif ($resource_data->{'resource.'.$part.'.award'} eq 'DRAFT') {
+                $symbol = 'd';
+                $hasdata = 1;
             } elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
                 # Unsolved.  Did they try?
                 if (exists($resource_data->{'resource.'.$part.'.tries'})){
@@ -1937,11 +2120,12 @@ sub student_performance_on_sequence {
             push (@ScoreData,$partscore);
             #
             if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
-                $symbol = '<a href="/adm/grades'.
-                    '?symb='.&Apache::lonnet::escape($symb).
+                my $link = '/adm/grades' .
+                    '?symb='.&escape($resource->shown_symb).
                     '&student='.$student->{'username'}.
                     '&userdom='.$student->{'domain'}.
-                    '&command=submission">'.$symbol.'</a>';
+                    '&command=submission';
+                $symbol = &link($symbol, $link);
             }
             $Str .= $symbol;
         }
@@ -1969,13 +2153,13 @@ problems.
 #######################################################
 sub CreateLegend {
     my $Str = "<p><pre>".
-              "   1  correct by student in 1 try\n".
-              "   7  correct by student in 7 tries\n".
+              " digit score or number of tries to get correct ".
               "   *  correct by student in more than 9 tries\n".
 	      "   +  correct by hand grading or override\n".
               "   -  incorrect by override\n".
 	      "   .  incorrect attempted\n".
-	      "   #  ungraded attempted\n".
+	      "   u  ungraded attempted\n".
+              "   d  draft answer saved but not submitted\n".
               "      not attempted (blank field)\n".
 	      "   x  excused".
               "</pre><p>";