--- loncom/interface/domainprefs.pm	2017/08/03 16:22:08	1.305
+++ loncom/interface/domainprefs.pm	2017/10/07 00:50:47	1.314
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.305 2017/08/03 16:22:08 raeburn Exp $
+# $Id: domainprefs.pm,v 1.314 2017/10/07 00:50:47 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -762,7 +762,7 @@ sub print_config_box {
     $output .=
          '<table class="LC_nested_outer">
           <tr>
-           <th align="left" valign="middle"><span class="LC_nobreak">'.
+           <th class="LC_left_item LC_middle"><span class="LC_nobreak">'.
            &mt($item->{text}).'&nbsp;'.
            &Apache::loncommon::help_open_topic($item->{'help'}).'</span></th>'."\n".
           '</tr>';
@@ -978,8 +978,8 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.' valign="top">'.&mt($item->{'header'}->[4]->{'col1'}).'</td>
-              <td class="LC_right_item" valign="top">'.&mt($item->{'header'}->[4]->{'col2'}).'</td>
+              <td class="LC_left_item"'.$colspan.' style="vertical-align: top">'.&mt($item->{'header'}->[4]->{'col1'}).'</td>
+              <td class="LC_right_item" style="vertical-align: top">'.&mt($item->{'header'}->[4]->{'col2'}).'</td>
              </tr>'.
             &print_validation_rows('requestcourses',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'requestauthor') {
@@ -994,9 +994,9 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.' valign="top">'.
+              <td class="LC_left_item"'.$colspan.' style="vertical-align: top">'.
                &mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item" valign="top">'.
+              <td class="LC_right_item" style="vertical-align: top">'.
                &mt($item->{'header'}->[2]->{'col2'}).'</td>
              </tr>'.
             &print_rolecolors($phase,'author',$dom,$confname,$settings,\$rowtotal).'
@@ -1024,30 +1024,30 @@ sub print_config_box {
               <td class="LC_left_item" colspan="2">'.&mt($item->{'header'}->[0]->{'col1'}).'</td>';
         } elsif ($action eq 'serverstatuses') {
             $output .= '
-              <td class="LC_left_item" valign="top">'.&mt($item->{'header'}->[0]->{'col1'}).
+              <td class="LC_left_item" style="vertical-align: top">'.&mt($item->{'header'}->[0]->{'col1'}).
               '<br />('.&mt('Automatic access for Dom. Coords.').')</td>';
 
         } else {
             $output .= '
-              <td class="LC_left_item" valign="top">'.&mt($item->{'header'}->[0]->{'col1'}).'</td>';
+              <td class="LC_left_item" style="vertical-align: top">'.&mt($item->{'header'}->[0]->{'col1'}).'</td>';
         }
         if (defined($item->{'header'}->[0]->{'col3'})) {
-            $output .= '<td class="LC_left_item" valign="top">'.
+            $output .= '<td class="LC_left_item" style="vertical-align: top">'.
                        &mt($item->{'header'}->[0]->{'col2'});
             if ($action eq 'serverstatuses') {
                 $output .= '<br />(<tt>'.&mt('user1:domain1,user2:domain2 etc.').'</tt>)';
             } 
         } else {
-            $output .= '<td class="LC_right_item" valign="top">'.
+            $output .= '<td class="LC_right_item" style="vertical-align: top">'.
                        &mt($item->{'header'}->[0]->{'col2'});
         }
         $output .= '</td>';
         if ($item->{'header'}->[0]->{'col3'}) {
             if (defined($item->{'header'}->[0]->{'col4'})) {
-                $output .= '<td class="LC_left_item" valign="top">'.
+                $output .= '<td class="LC_left_item" style="vertical-align: top">'.
                             &mt($item->{'header'}->[0]->{'col3'});
             } else {
-                $output .= '<td class="LC_right_item" valign="top">'.
+                $output .= '<td class="LC_right_item" style="vertical-align: top">'.
                            &mt($item->{'header'}->[0]->{'col3'});
             }
             if ($action eq 'serverstatuses') {
@@ -1056,7 +1056,7 @@ sub print_config_box {
             $output .= '</td>';
         }
         if ($item->{'header'}->[0]->{'col4'}) {
-            $output .= '<td class="LC_right_item" valign="top">'.
+            $output .= '<td class="LC_right_item" style="vertical-align: top">'.
                        &mt($item->{'header'}->[0]->{'col4'});
         }
         $output .= '</tr>';
@@ -1089,7 +1089,7 @@ sub print_login {
         my $choice = $choices{'disallowlogin'};
         $css_class = ' class="LC_odd_row"';
         $datatable .= '<tr'.$css_class.'><td>'.$choice.'</td>'.
-                      '<td align="right"><table><tr><th>'.$choices{'hostid'}.'</th>'.
+                      '<td style="text-align: right"><table><tr><th>'.$choices{'hostid'}.'</th>'.
                       '<th>'.$choices{'server'}.'</th>'.
                       '<th>'.$choices{'serverpath'}.'</th>'.
                       '<th>'.$choices{'custompath'}.'</th>'.
@@ -1370,7 +1370,7 @@ sub print_login {
         my $choice = $choices{'headtag'};
         $css_class = ' class="LC_odd_row"';
         $datatable .= '<tr'.$css_class.'><td colspan="2">'.$choice.'</td>'.
-                      '<td align="left"><table><tr><th>'.$choices{'hostid'}.'</th>'.
+                      '<td style="text-align: left"><table><tr><th>'.$choices{'hostid'}.'</th>'.
                       '<th>'.$choices{'current'}.'</th>'.
                       '<th>'.$choices{'action'}.'</th>'.
                       '<th>'.$choices{'exempt'}.'</th></tr>'."\n";
@@ -1726,7 +1726,7 @@ sub display_color_options {
                   '<table border="0"><tr>';
 
     foreach my $item (@{$bgs}) {
-        $datatable .= '<td align="center">'.$choices->{$item};
+        $datatable .= '<td style="text-align: center">'.$choices->{$item};
 	my $color = $designs->{'bgs'}{$item} ? $designs->{'bgs'}{$item} : $defaults->{'bgs'}{$item};
         if ($designs->{'bgs'}{$item}) {
             $datatable .= '&nbsp;';
@@ -1754,7 +1754,7 @@ sub display_color_options {
                   '<table border="0"><tr>';
     foreach my $item (@{$links}) {
 	my $color = $designs->{'links'}{$item} ? $designs->{'links'}{$item} : $defaults->{'links'}{$item};
-        $datatable .= '<td align="center">'.$choices->{$item}."\n";
+        $datatable .= '<td style="text-align: center">'.$choices->{$item}."\n";
         if ($designs->{'links'}{$item}) {
             $datatable.='&nbsp;';
         }
@@ -1815,7 +1815,7 @@ sub login_text_colors {
     my ($img,$role,$logintext,$phase,$choices,$designs,$defaults) = @_;
     my $color_menu = '<table border="0"><tr>';
     foreach my $item (@{$logintext}) {
-        $color_menu .= '<td align="center">'.$choices->{$item};
+        $color_menu .= '<td style="text-align: center">'.$choices->{$item};
         my $color = $designs->{'logintext'}{$item} ? $designs->{'logintext'}{$item} : $defaults->{'logintext'}{$item};
         $color_menu .= '<br /><input type="text" class="colorchooser" size="8" name="'.$role.'_'.$item.'" value="'.$color.
                       '" onblur = "javascript:colchg_span('."'css_".$role.'_'.$item."'".',this);" /></td>';
@@ -1850,7 +1850,7 @@ sub image_changes {
                        $role.'_del_'.$img.'" value="1" />'.&mt('Delete?').
                        '</label>&nbsp;'.&mt('Replace:').'</span><br />';
         } else {
-            $output .= '<td valign="middle">'.$logincolors.&mt('Upload:').'<br />';
+            $output .= '<td class="LC_middle">'.$logincolors.&mt('Upload:').'<br />';
         }
     }
     return $output;
@@ -3356,7 +3356,7 @@ sub print_helpsettings {
             my @templateroles = &Apache::lonuserutils::custom_template_roles($context,$crstype);
             $css_class = $itemcount%2?' class="LC_odd_row"':'';
             my $chgstr = ' onchange="javascript:reorderHelpRoles(this.form,'."'helproles_".$num."_pos'".');"';
-            $datatable .= '<tr '.$css_class.'><td valign="top"><b>'.$role.'</b><br />'.
+            $datatable .= '<tr '.$css_class.'><td style="vertical-align: top"><b>'.$role.'</b><br />'.
                           '<select name="helproles_'.$num.'_pos"'.$chgstr.'>';
             for (my $k=0; $k<=$maxnum; $k++) {
                 my $vpos = $k+1;
@@ -3395,7 +3395,7 @@ sub print_helpsettings {
         &Apache::lonuserutils::custom_role_privs(\%privs,\%full,\%levels,\%levelscurrent);
         my @templateroles = &Apache::lonuserutils::custom_template_roles($context,$crstype);
         my $chgstr = ' onchange="javascript:reorderHelpRoles(this.form,'."'helproles_".$count."_pos'".');"';
-        $datatable .= '<tr '.$css_class.'><td valign="top"><span class="LC_nobreak"><label>'.
+        $datatable .= '<tr '.$css_class.'><td style="vertical-align: top"><span class="LC_nobreak"><label>'.
                       '<input type="hidden" name="helproles_maxnum" value="'.$maxnum.'" />'."\n".
                       '<select name="helproles_'.$count.'_pos"'.$chgstr.'>';
         for (my $k=0; $k<$maxnum+1; $k++) {
@@ -3674,7 +3674,7 @@ sub radiobutton_prefs {
     foreach my $item (@{$toggles}) {
         $css_class = $itemcount%2?' class="LC_odd_row"':'';
         $datatable .=
-            '<tr'.$css_class.'><td valign="top">'.
+            '<tr'.$css_class.'><td style="vertical-align: top">'.
             '<span class="LC_nobreak">'.$choices->{$item}.
             '</span></td>';
         if ($align eq 'left') {
@@ -3865,7 +3865,7 @@ sub print_ltitools {
                 if (!$rolemaps{$role}) {
                     $selectnone = ' selected="selected"';
                 }
-                $datatable .= '<td align="center">'. 
+                $datatable .= '<td style="text-align: center">'. 
                               &Apache::lonnet::plaintext($role,'Course').'<br />'.
                               '<select name="ltitools_roles_'.$role.'_'.$i.'">'.
                               '<option value=""'.$selectnone.'>'.&mt('Select').'</option>';
@@ -3999,7 +3999,7 @@ sub print_ltitools {
                   '<fieldset><legend>'.&mt('Role mapping').'</legend><table><tr>';
     foreach my $role (@courseroles) {
         my ($checked,$checkednone);
-        $datatable .= '<td align="center">'.
+        $datatable .= '<td style="text-align: center">'.
                       &Apache::lonnet::plaintext($role,'Course').'<br />'.
                       '<select name="ltitools_add_roles_'.$role.'">'.
                       '<option value="" selected="selected">'.&mt('Select').'</option>';
@@ -4073,11 +4073,13 @@ sub print_coursedefaults {
         coursecredits        => 'Credits can be specified for courses',
         uselcmath            => 'Math preview uses LON-CAPA previewer (javascript) in place of DragMath (Java)',
         usejsme              => 'Molecule editor uses JSME (HTML5) in place of JME (Java)',
+        texengine            => 'Default method to display mathematics',
         postsubmit           => 'Disable submit button/keypress following student submission',
         canclone             => "People who may clone a course (besides course's owner and coordinators)",
         mysqltables          => 'Lifetime (s) of "Temporary" MySQL tables (student performance data) on homeserver',
     );
     my %staticdefaults = (
+                           texengine            => 'MathJax',
                            anonsurvey_threshold => 10,
                            uploadquota          => 500,
                            postsubmit           => 60,
@@ -4091,11 +4093,39 @@ sub print_coursedefaults {
                             'canclone'        => 'none',
                           );
         @toggles = ('canuse_pdfforms','uselcmath','usejsme');
+        my $deftex = $staticdefaults{'texengine'};
+        if (ref($settings) eq 'HASH') {
+            if ($settings->{'texengine'}) {
+                if ($settings->{'texengine'} =~ /^(MathJax|mimetex|tth)$/) {
+                    $deftex = $settings->{'texengine'};
+                }
+            }
+        }
+        $css_class = $itemcount%2?' class="LC_odd_row"':'';
+        my $mathdisp = '<tr'.$css_class.'><td style="vertical-align: top">'.
+                       '<span class="LC_nobreak">'.$choices{'texengine'}.
+                       '</span></td><td class="LC_right_item">'.
+                       '<select name="texengine">'."\n";
+        my %texoptions = (
+                            MathJax  => 'MathJax',
+                            mimetex  => &mt('Convert to Images'),
+                            tth      => &mt('TeX to HTML'),
+                         );
+        foreach my $renderer ('MathJax','mimetex','tth') {
+            my $selected = '';
+            if ($renderer eq $deftex) {
+                $selected = ' selected="selected"';
+            }
+            $mathdisp .= '<option value="'.$renderer.'"'.$selected.'>'.$texoptions{$renderer}.'</option>'."\n";
+        }
+        $mathdisp .= '</select></td></tr>'."\n";
+        $itemcount ++;
         ($datatable,$itemcount) = &radiobutton_prefs($settings,\@toggles,\%defaultchecked,
                                                      \%choices,$itemcount);
+        $datatable = $mathdisp.$datatable;
         $css_class = $itemcount%2?' class="LC_odd_row"':'';
         $datatable .=
-            '<tr'.$css_class.'><td valign="top">'.
+            '<tr'.$css_class.'><td style="vertical-align: top">'.
             '<span class="LC_nobreak">'.$choices{'canclone'}.
             '</span></td><td class="LC_left_item">';
         my $currcanclone = 'none';
@@ -4247,10 +4277,10 @@ sub print_coursedefaults {
         $datatable .= '<tr'.$css_class.'><td><span class="LC_nobreak">'.
                       $choices{'uploadquota'}.
                       '</span></td>'.
-                      '<td align="right" class="LC_right_item">'.
+                      '<td style="text-align: right" class="LC_right_item">'.
                       '<table><tr>';
         foreach my $type (@types) {
-            $datatable .= '<td align="center">'.&mt($type).'<br />'.
+            $datatable .= '<td style="text-align: center">'.&mt($type).'<br />'.
                            '<input type="text" name="uploadquota_'.$type.'"'.
                            ' value="'.$curruploadquota{$type}.'" size="5" /></td>';
         }
@@ -4265,7 +4295,7 @@ sub print_coursedefaults {
                          '<i>'.&mt('Default credits').'</i><br /><table><tr>';
         foreach my $type (@types) {
             next if ($type eq 'community');
-            $additional .= '<td align="center">'.&mt($type).'<br />'.
+            $additional .= '<td style="text-align: center">'.&mt($type).'<br />'.
                            '<input type="text" name="'.$type.'_credits"'.
                            ' value="'.$defcredits{$type}.'" size="3" /></td>';
         }
@@ -4289,7 +4319,7 @@ sub print_coursedefaults {
                       '<i>'.&mt('Enter 0 to remain disabled until page reload.').'</i><br />'.
                       '<table><tr>';
         foreach my $type (@types) {
-            $additional .= '<td align="center">'.&mt($type).'<br />'.
+            $additional .= '<td style="text-align: center">'.&mt($type).'<br />'.
                            '<input type="text" name="'.$type.'_timeout" value="'.
                            $deftimeout{$type}.'" size="5" /></td>';
         }
@@ -4307,10 +4337,10 @@ sub print_coursedefaults {
         $datatable .= '<tr'.$css_class.'><td><span class="LC_nobreak">'.
                       $choices{'mysqltables'}.
                       '</span></td>'.
-                      '<td align="right" class="LC_right_item">'.
+                      '<td style="text-align: right" class="LC_right_item">'.
                       '<table><tr>';
         foreach my $type (@types) {
-            $datatable .= '<td align="center">'.&mt($type).'<br />'.
+            $datatable .= '<td style="text-align: center">'.&mt($type).'<br />'.
                            '<input type="text" name="mysqltables_'.$type.'"'.
                            ' value="'.$currmysql{$type}.'" size="8" /></td>';
         }
@@ -5209,7 +5239,7 @@ sub print_loadbalancing {
         my $disabled_div_style = 'display: block';
         my $homedom_div_style = 'display: none';
         $datatable .= '<tr class="'.$css_class[$cssidx].'">'.
-                      '<td rowspan="'.$rownum.'" valign="top">'.
+                      '<td rowspan="'.$rownum.'" style="vertical-align: top">'.
                       '<p>';
         if ($lonhost eq '') {
             $datatable .= '<span class="LC_nobreak">';
@@ -5242,7 +5272,7 @@ sub print_loadbalancing {
                 $homedom_div_style = 'display: block';
             }
         }
-        $datatable .= '</p></td><td rowspan="'.$rownum.'" valign="top">'.
+        $datatable .= '</p></td><td rowspan="'.$rownum.'" style="vertical-align: top">'.
                   '<div id="loadbalancing_disabled_'.$balnum.'" style="'.
                   $disabled_div_style.'">'.$disabledtext.'</div>'."\n".
                   '<div id="loadbalancing_targets_'.$balnum.'" style="'.$targets_div_style.'">'.&mt('Offloads to:').'<br />';
@@ -5457,7 +5487,7 @@ sub loadbalance_rule_row {
         $space = '<div display="inline-block">&nbsp;</div>';
     }
     my $output =
-        '<tr class="'.$css_class.'" id="balanceruletr_'.$balnum.'_'.$num.'"><td valign="top">'.$space.
+        '<tr class="'.$css_class.'" id="balanceruletr_'.$balnum.'_'.$num.'"><td style="vertical-align: top">'.$space.
         '<div id="balanceruletitle_'.$balnum.'_'.$type.'" style="'.$style.'">'.$title.'</div></td>'."\n".
         '<td valaign="top">'.$space.
         '<div id="balancerule_'.$balnum.'_'.$type.'" style="'.$style.'">'."\n";
@@ -5694,7 +5724,7 @@ sub print_usercreation {
             }
             $datatable .= '<tr'.$css_class.'>'.
                          '<td><span class="LC_nobreak">'.$lt{$item}.
-                         '</span></td><td align="right">';
+                         '</span></td><td style="text-align: right">';
             my @options = ('any');
             if (ref($rules) eq 'HASH') {
                 if (keys(%{$rules}) > 0) {
@@ -6137,7 +6167,7 @@ sub noninst_users {
     }
     $output .= '</tr><tr>';
     foreach my $item ('approve','email','username') {
-        $output .= '<td valign="top">';
+        $output .= '<td style="vertical-align: top">';
         my (%choices,@options,$hashref,$defoption,$name,$onclick,$hascustom);
         if ($item eq 'approve') {
             %choices = &Apache::lonlocal::texthash (
@@ -6402,7 +6432,7 @@ sub user_formats_row {
                 }
                 $output .= '<td class="LC_left_item">'.
                            '<span class="LC_nobreak"><label>'.
-                           '<input type="checkbox" name="'.$name.'"'.
+                           '<input type="checkbox" name="'.$name.'" '.
                            'value="'.$ruleorder->[$i].'"'.$check.'/>'.
                            $rules->{$ruleorder->[$i]}{'name'}.'</label></span></td>';
             }
@@ -6849,7 +6879,7 @@ sub print_scantronformat {
         }
         $datatable .= '</span></td>';
         if (keys(%error) == 0) { 
-            $datatable .= '<td valign="bottom">';
+            $datatable .= '<td style="vertical-align: bottom">';
             if (!$switchserver) {
                 $datatable .= &mt('Upload:').'<br />';
             }
@@ -7643,7 +7673,6 @@ sub modifiable_userdata_row {
     if ($rowid) {
         $rowid = ' id="'.$rowid.'"';
     }
-    
     $output = '<tr '.$css_class.$rowid.'>'.
               '<td><span class="LC_nobreak">'.$rolename.'</span></td>'.
               '<td class="LC_left_item" colspan="2"><table>';
@@ -8736,7 +8765,7 @@ sub display_colorchgs {
                         } else {
                             my $newitem = $confhash->{$role}{$item};
                             if ($key eq 'images') {
-                                $newitem = '<img src="'.$confhash->{$role}{$item}.'" alt="'.$choices{$item}.'" valign="bottom" />';
+                                $newitem = '<img src="'.$confhash->{$role}{$item}.'" alt="'.$choices{$item}.'" style="vertical-align: bottom" />';
                             }
                             $resulttext .= '<li>'.&mt("$choices{$item} set to [_1]",$newitem).'</li>';
                         }
@@ -9270,17 +9299,21 @@ sub modify_quotas {
                                     #FIXME need to obsolete item in RES space
                                 } elsif ($env{'form.'.$type.'_image_'.$i.'.filename'}) {
                                     my ($cdom,$cnum) = split(/_/,$key);
-                                    my ($imgurl,$error) = &process_textbook_image($r,$dom,$confname,$type.'_image_'.$i,
-                                                                                  $cdom,$cnum,$type,$configuserok,
-                                                                                  $switchserver,$author_ok);
-                                    if ($imgurl) {
-                                        $confhash{$type}{$key}{'image'} = $imgurl;
-                                        $changes{$type}{$key} = 1; 
+                                    if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
+                                        $errors .= '<li><span class="LC_error">'.&mt('Image not saved: could not find textbook course').'</li>';
+                                    } else {
+                                        my ($imgurl,$error) = &process_textbook_image($r,$dom,$confname,$type.'_image_'.$i,
+                                                                                      $cdom,$cnum,$type,$configuserok,
+                                                                                      $switchserver,$author_ok);
+                                        if ($imgurl) {
+                                            $confhash{$type}{$key}{'image'} = $imgurl;
+                                            $changes{$type}{$key} = 1; 
+                                        }
+                                        if ($error) {
+                                            &Apache::lonnet::logthis($error);
+                                            $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+                                        }
                                     }
-                                    if ($error) {
-                                        &Apache::lonnet::logthis($error);
-                                        $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
-                                    } 
                                 } elsif ($domconfig{$action}{$type}{$key}{'image'}) {
                                     $confhash{$type}{$key}{'image'} = 
                                         $domconfig{$action}{$type}{$key}{'image'};
@@ -9313,15 +9346,19 @@ sub modify_quotas {
                     if ($type eq 'textbooks') {
                         if ($env{'form.'.$type.'_addbook_image.filename'} ne '') {
                             my ($cdom,$cnum) = split(/_/,$newbook{$type});
-                            my ($imageurl,$error) =
-                                &process_textbook_image($r,$dom,$confname,$type.'_addbook_image',$cdom,$cnum,$type,
-                                                        $configuserok,$switchserver,$author_ok);
-                            if ($imageurl) {
-                                $confhash{$type}{$newbook{$type}}{'image'} = $imageurl;
-                            }
-                            if ($error) {
-                                &Apache::lonnet::logthis($error);
-                                $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+                            if (&Apache::lonnet::homeserver($cnum,$cdom) eq 'no_host') {
+                                $errors .= '<li><span class="LC_error">'.&mt('Image not saved: could not find textbook course').'</li>';
+                            } else {
+                                my ($imageurl,$error) =
+                                    &process_textbook_image($r,$dom,$confname,$type.'_addbook_image',$cdom,$cnum,$type,
+                                                            $configuserok,$switchserver,$author_ok);
+                                if ($imageurl) {
+                                    $confhash{$type}{$newbook{$type}}{'image'} = $imageurl;
+                                }
+                                if ($error) {
+                                    &Apache::lonnet::logthis($error);
+                                    $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+                                }
                             }
                         }
                     }
@@ -9813,7 +9850,7 @@ sub process_textbook_image {
         } elsif ($author_ok eq 'ok') {
             my ($result,$imageurl) =
                 &publishlogo($r,'upload',$caller,$dom,$confname,
-                             "$type/$dom/$cnum/cover",$width,$height);
+                             "$type/$cdom/$cnum/cover",$width,$height);
             if ($result eq 'ok') {
                 $url = $imageurl;
             } else {
@@ -9896,7 +9933,7 @@ sub modify_ltitools {
             }
             if ($env{'form.ltitools_add_image.filename'} ne '') {
                 my ($imageurl,$error) =
-                    &process_ltitools_image($r,$dom,$confname,'ltitools_add_image',$dom,
+                    &process_ltitools_image($r,$dom,$confname,'ltitools_add_image',$newid,
                                             $configuserok,$switchserver,$author_ok);
                 if ($imageurl) {
                     $confhash{$newid}{'image'} = $imageurl;
@@ -9959,6 +9996,7 @@ sub modify_ltitools {
         my $maxnum = $env{'form.ltitools_maxnum'};
         for (my $i=0; $i<=$maxnum; $i++) {
             my $itemid = $env{'form.ltitools_id_'.$i};
+            $itemid =~ s/\D+//g;
             if (ref($domconfig{$action}{$itemid}) eq 'HASH') {
                 if ($deletions{$itemid}) {
                     if ($domconfig{$action}{$itemid}{'image'}) {
@@ -12072,7 +12110,7 @@ sub modify_selfcreation {
                         if (@types) {
                             if (@statuses) {
                                 $chgtext .= &mt('Processing of requests to create account with e-mail verification set as follows:'). 
-                                                '<ul>';
+                                            '<ul>';
                                 foreach my $status (@statuses) {
                                     if ($status eq 'default') {
                                         $chgtext .= '<li>'.$othertitle.' -- '.$choices{$cancreate{'selfcreateprocessing'}{$status}}.'</li>';
@@ -12273,8 +12311,8 @@ sub modify_selfcreation {
                             }
                         }
                         $chgtext .= '</ul>';
+                        my $typename;
                         if (@types) {
-                            my $typename;
                             if ($type eq 'default') {
                                 $typename = $othertitle;
                             } else {
@@ -12290,10 +12328,9 @@ sub modify_selfcreation {
                                            '</li>';
                         } else {
                             $resulttext .= '<li>'.
-                                           &mt('There are now no restrictions on e-mail addresses which may be used for verification when a user requests an account.',
-                                                $usertypes{$type}).
+                                           &mt('There are now no restrictions on e-mail addresses which may be used for verification when a user requests an account.').
                                            '</li>'.
-                                           &mt('(Affiliation: [_1])',$type);
+                                           &mt('(Affiliation: [_1])',$typename);
                         }
                     }
                 }
@@ -13656,7 +13693,11 @@ sub modify_coursedefaults {
                            postsubmit           => 60,
                            mysqltables          => 172800,
                          );
-
+    my %texoptions = (
+                        MathJax  => 'MathJax',
+                        mimetex  => &mt('Convert to Images'),
+                        tth      => &mt('TeX to HTML'),
+                     );
     $defaultshash{'coursedefaults'} = {};
 
     if (ref($domconfig{'coursedefaults'}) ne 'HASH') {
@@ -13716,6 +13757,20 @@ sub modify_coursedefaults {
                 }
             }
         }
+        my $texengine;
+        if ($env{'form.texengine'} =~ /^(MathJax|mimetex|tth)$/) {
+            $texengine = $env{'form.texengine'};
+            if ($defaultshash{'coursedefaults'}{'texengine'} eq '') {
+                unless ($texengine eq 'MathJax') {
+                    $changes{'texengine'} = 1;
+                }
+            } elsif ($defaultshash{'coursedefaults'}{'texengine'} ne $texengine) {
+                $changes{'texengine'} = 1;
+            }
+        }
+        if ($texengine ne '') {
+            $defaultshash{'coursedefaults'}{'texengine'} = $texengine;
+        }
         my $currclone = $domconfig{'coursedefaults'}{'canclone'};
         my @currclonecode;
         if (ref($currclone) eq 'HASH') {
@@ -13836,8 +13891,8 @@ sub modify_coursedefaults {
             my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
             if (($changes{'canuse_pdfforms'}) || ($changes{'uploadquota'}) || ($changes{'postsubmit'}) ||
                 ($changes{'coursecredits'}) || ($changes{'uselcmath'}) || ($changes{'usejsme'}) ||
-                ($changes{'canclone'}) || ($changes{'mysqltables'})) {
-                foreach my $item ('canuse_pdfforms','uselcmath','usejsme') { 
+                ($changes{'canclone'}) || ($changes{'mysqltables'}) || ($changes{'texengine'})) {
+                foreach my $item ('canuse_pdfforms','uselcmath','usejsme','texengine') {
                     if ($changes{$item}) {
                         $domdefaults{$item}=$defaultshash{'coursedefaults'}{$item};
                     }
@@ -13906,6 +13961,11 @@ sub modify_coursedefaults {
                     } else {
                         $resulttext .= '<li>'.&mt('Molecule editor uses JME (Java), if supported by client OS.').'</li>';
                     }
+                } elsif ($item eq 'texengine') {
+                    if ($defaultshash{'coursedefaults'}{'texengine'} ne '') {
+                        $resulttext .= '<li>'.&mt('Default method to display mathematics set to: "[_1]"',
+                                                  $texoptions{$defaultshash{'coursedefaults'}{'texengine'}}).'</li>';
+                    }
                 } elsif ($item eq 'anonsurvey_threshold') {
                     $resulttext .= '<li>'.&mt('Responder count required for display of anonymous survey submissions set to [_1].',$defaultshash{'coursedefaults'}{'anonsurvey_threshold'}).'</li>';
                 } elsif ($item eq 'uploadquota') {