--- loncom/interface/domainprefs.pm	2008/05/08 22:13:32	1.49
+++ loncom/interface/domainprefs.pm	2008/06/30 03:47:12	1.58
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.49 2008/05/08 22:13:32 raeburn Exp $
+# $Id: domainprefs.pm,v 1.58 2008/06/30 03:47:12 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -62,7 +62,7 @@ sub handler {
     }
     &Apache::lonhtmlcommon::clear_breadcrumbs();
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-                                            ['phase']);
+                                            ['phase','actions']);
     my $phase = 'pickactions';
     if ( exists($env{'form.phase'}) ) {
         $phase = $env{'form.phase'};
@@ -96,7 +96,7 @@ sub handler {
                                   col2 => '',}],
                     },
         'defaults' => 
-                    { text => 'Default authentication/language',
+                    { text => 'Default authentication/language/timezone',
                       help => '',
                       header => [{col1 => 'Setting',
                                   col2 => 'Value'}],
@@ -162,9 +162,11 @@ sub handler {
         'coursecategories' => 
                   { text => 'Cataloging of courses',
                     help => 'Domain_Course_Catalog',
-                    header => [  {col1 => 'Categories',
-                                  col2 => '',
-                              }],
+                    header => [{col1 => 'Category settings',  
+                                col2 => '',},
+                               {col1 => 'Categories',
+                                col2 => '',
+                               }],
                   }
     );
     my @roles = ('student','coordinator','author','admin');
@@ -300,10 +302,10 @@ sub handler {
         $r->print('<h3>'.&mt('Functionality to display/modify').'</h3>');
         $r->print('<script type="text/javascript">'."\n".
               &Apache::loncommon::check_uncheck_jscript()."\n".
-              '</script>'."\n".'<p><input type="button" value="check all" '.
+              '</script>'."\n".'<p><input type="button" value="'.&mt('check all').'" '.
               'onclick="javascript:checkAll(document.pickactions.actions)"'.
               ' />&nbsp;&nbsp;'.
-              '<input type="button" value="uncheck all" '.
+              '<input type="button" value="'.&mt('uncheck all').'" '.
               'onclick="javascript:uncheckAll(document.pickactions.actions)"'.
               ' /></p><div class="LC_left_float">');
         my ($numitems,$midpoint,$seconddiv,$count); 
@@ -314,7 +316,7 @@ sub handler {
         }
         $count = 0;
         foreach my $item (@prefs_order) {
-            $r->print('<h4><label><input type="checkbox" name="actions" value="'.$item.'" />&nbsp;'.$prefs{$item}->{'text'}.'</label></h4>');
+            $r->print('<h4><label><input type="checkbox" name="actions" value="'.$item.'" />&nbsp;'.&mt($prefs{$item}->{'text'}).'</label></h4>');
             $count ++;
             if ((!$seconddiv) && ($count >= $midpoint)) {
                 $r->print('</div>'."\n".'<div class="LC_left_float">'."\n");
@@ -386,7 +388,8 @@ sub print_config_box {
 #          </tr>');
     $rowtotal ++;
     if (($action eq 'autoupdate') || ($action eq 'rolecolors') || 
-        ($action eq 'usercreation') || ($action eq 'usermodification')) {
+        ($action eq 'usercreation') || ($action eq 'usermodification') ||
+        ($action eq 'coursecategories')) {
         my $colspan = ($action eq 'rolecolors')?' colspan="2"':'';
         $output .= '
           <tr>
@@ -403,6 +406,8 @@ sub print_config_box {
             $output .= &print_usercreation('top',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'usermodification') {
             $output .= &print_usermodification('top',$dom,$settings,\$rowtotal);
+        } elsif ($action eq 'coursecategories') {
+            $output .= &print_coursecategories('top',$dom,$item,$settings,\$rowtotal);
         } else {
             $output .= &print_rolecolors($phase,'student',$dom,$confname,$settings,\$rowtotal);
         }
@@ -414,8 +419,10 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.$item->{'header'}->[1]->{'col1'}.'</td>
-              <td class="LC_right_item">'.$item->{'header'}->[1]->{'col2'}.'</td>
+              <td class="LC_left_item"'.$colspan.'>'.$item->{'header'}->[1]->{'col1'}.'</td>';
+        my $colspan = ($action eq 'coursecategories')?' colspan="2"':'';
+        $output .= '
+              <td class="LC_right_item"'.$colspan.'>'.$item->{'header'}->[1]->{'col2'}.'</td>
              </tr>';
             $rowtotal ++;
         if ($action eq 'autoupdate') {
@@ -435,6 +442,8 @@ sub print_config_box {
             $rowtotal ++;
         } elsif ($action eq 'usermodification') {
             $output .= &print_usermodification('bottom',$dom,$settings,\$rowtotal);
+        } elsif ($action eq 'coursecategories') {
+            $output .= &print_coursecategories('bottom',$dom,$item,$settings,\$rowtotal);
         } else {
             $output .= &print_rolecolors($phase,'coordinator',$dom,$confname,$settings,\$rowtotal).'
            </table>
@@ -474,9 +483,8 @@ sub print_config_box {
             $output .= '
               <td class="LC_left_item">'.$item->{'header'}->[0]->{'col1'}.'</td>';
         }
-        my $colspan = ($action eq 'coursecategories')?' colspan="2"':'';
         $output .= '
-              <td class="LC_right_item"'.$colspan.'>'.$item->{'header'}->[0]->{'col2'}.'</td>
+              <td class="LC_right_item">'.$item->{'header'}->[0]->{'col2'}.'</td>
              </tr>';
         $rowtotal ++;
         if ($action eq 'login') {
@@ -493,8 +501,6 @@ sub print_config_box {
             $output .= &print_defaults($dom,\$rowtotal);
         } elsif ($action eq 'scantron') {
             $output .= &print_scantronformat($r,$dom,$confname,$settings,\$rowtotal);
-        } elsif ($action eq 'coursecategories'){
-            $output .= &print_coursecategories($dom,$item,$settings,\$rowtotal);
         }
     }
     $output .= '
@@ -1543,11 +1549,21 @@ sub print_usercreation {
             &Apache::lonnet::inst_userrules($dom,'username');
         my %lt = &usercreation_types();
         my %checked;
+        my @selfcreate; 
         if (ref($settings) eq 'HASH') {
             if (ref($settings->{'cancreate'}) eq 'HASH') {
                 foreach my $item (@creators) {
                     $checked{$item} = $settings->{'cancreate'}{$item};
                 }
+                if (ref($settings->{'cancreate'}{'selfcreate'}) eq 'ARRAY') {
+                    @selfcreate = @{$settings->{'cancreate'}{'selfcreate'}};
+                } elsif ($settings->{'cancreate'}{'selfcreate'} ne '') {
+                    if ($settings->{'cancreate'}{'selfcreate'} eq 'any') {
+                        @selfcreate = ('email','login','sso');
+                    } elsif ($settings->{'cancreate'}{'selfcreate'} ne 'none') {
+                        @selfcreate = ($settings->{'cancreate'}{'selfcreate'});
+                    }
+                }
             } elsif (ref($settings->{'cancreate'}) eq 'ARRAY') {
                 foreach my $item (@creators) {
                     if (grep(/^\Q$item\E$/,@{$settings->{'cancreate'}})) {
@@ -1559,10 +1575,8 @@ sub print_usercreation {
         my $rownum = 0;
         foreach my $item (@creators) {
             $rownum ++;
-            if ($checked{$item} eq '') {
-                if ($item eq 'selfcreate') {
-                    $checked{$item} = 'none';
-                } else {
+            if ($item ne 'selfcreate') {  
+                if ($checked{$item} eq '') {
                     $checked{$item} = 'any';
                 }
             }
@@ -1575,24 +1589,33 @@ sub print_usercreation {
             $datatable .= '<tr'.$css_class.'>'.
                          '<td><span class="LC_nobreak">'.$lt{$item}.
                          '</span></td><td align="right">';
-            my @options = ('any');
+            my @options;
             if ($item eq 'selfcreate') {
                 push(@options,('email','login','sso'));
             } else {
+                @options = ('any');
                 if (ref($rules) eq 'HASH') {
                     if (keys(%{$rules}) > 0) {
                         push(@options,('official','unofficial'));
                     }
                 }
+                push(@options,'none');
             }
-            push(@options,'none');
             foreach my $option (@options) {
+                my $type = 'radio';
                 my $check = ' ';
-                if ($checked{$item} eq $option) {
-                    $check = ' checked="checked" ';
+                if ($item eq 'selfcreate') {
+                    $type = 'checkbox';
+                    if (grep(/^\Q$option\E$/,@selfcreate)) {
+                        $check = ' checked="checked" ';
+                    }
+                } else {
+                    if ($checked{$item} eq $option) {
+                        $check = ' checked="checked" ';
+                    }
                 } 
                 $datatable .= '<span class="LC_nobreak"><label>'.
-                              '<input type="radio" name="can_createuser_'.
+                              '<input type="'.$type.'" name="can_createuser_'.
                               $item.'" value="'.$option.'"'.$check.'/>&nbsp;'.
                               $lt{$option}.'</label>&nbsp;&nbsp;</span>';
             }
@@ -1765,7 +1788,7 @@ sub print_usermodification {
 
 sub print_defaults {
     my ($dom,$rowtotal) = @_;
-    my @items = ('auth_def','auth_arg_def','lang_def');
+    my @items = ('auth_def','auth_arg_def','lang_def','timezone_def');
     my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
     my $titles = &defaults_titles();
     my $rownum = 0;
@@ -1797,6 +1820,9 @@ sub print_defaults {
                               '" value="'.$auth.'"'.$checked.'/>'.
                               $authnames{$shortauth{$auth}}.'</label>&nbsp;&nbsp;';
             }
+        } elsif ($item eq 'timezone_def') {
+            my $includeempty = 1;
+            $datatable .= &Apache::loncommon::select_timezone($item,$domdefaults{$item},undef,$includeempty);
         } else {
             $datatable .= '<input type="text" name="'.$item.'" value="'.
                           $domdefaults{$item}.'" />';
@@ -1813,6 +1839,7 @@ sub defaults_titles {
                    'auth_def'      => 'Default authentication type',
                    'auth_arg_def'  => 'Default authentication argument',
                    'lang_def'      => 'Default language',
+                   'timezone_def'  => 'Default timezone',
                  );
     return (\%titles);
 }
@@ -1940,117 +1967,167 @@ sub legacy_scantronformat {
 }
 
 sub print_coursecategories {
-    my ($dom,$hdritem,$settings,$rowtotal) = @_;
-    my ($datatable,$css_class);
-    my $itemcount = 1;
-    if (ref($settings) eq 'HASH') {
-        my (@cats,@trails,%allitems,%idx,@jsarray);
-        &extract_categories($settings,\@cats,\@trails,\%allitems,\%idx,\@jsarray);
-        my $maxdepth = scalar(@cats);
-        my $colattrib = '';
-        if ($maxdepth > 2) {
-            $colattrib = ' colspan="2" ';
-        }
-        my @path;
-        if (@cats > 0) {
-            if (ref($cats[0]) eq 'ARRAY') {
-                my $numtop = @{$cats[0]};
-                my $maxnum = $numtop;
-                if ((!grep(/^instcode$/,@{$cats[0]})) || ($settings->{'instcode::0'} eq '')) {
-                    $maxnum ++;
-                }
-                my $lastidx;
-                for (my $i=0; $i<$numtop; $i++) {
-                    my $parent = $cats[0][$i];
+    my ($position,$dom,$hdritem,$settings,$rowtotal) = @_;
+    my $datatable;
+    if ($position eq 'top') {
+        my $toggle_cats_crs = ' ';
+        my $toggle_cats_dom = ' checked="checked" ';
+        my $can_cat_crs = ' ';
+        my $can_cat_dom = ' checked="checked" ';
+        if (ref($settings) eq 'HASH') {
+            if ($settings->{'togglecats'} eq 'crs') {
+                $toggle_cats_crs = $toggle_cats_dom;
+                $toggle_cats_dom = ' ';
+            }
+            if ($settings->{'categorize'} eq 'crs') {
+                $can_cat_crs = $can_cat_dom;
+                $can_cat_dom = ' ';
+            }
+        }
+        my %title = &Apache::lonlocal::texthash (
+                     togglecats => 'Show/Hide a course in the catalog',
+                     categorize    => 'Assign a category to a course',
+                    );
+        my %level = &Apache::lonlocal::texthash (
+                     dom => 'Set in "Modify Course" (Domain)',
+                     crs => 'Set in "Parameters" (Course)',   
+                    );
+        $datatable = '<tr class="LC_odd_row">'.
+                  '<td>'.$title{'togglecats'}.'</td>'.
+                  '<td class="LC_right_item"><span class="LC_nobreak"><label>'.
+                  '<input type="radio" name="togglecats"'.
+                  $toggle_cats_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
+                  '<label><input type="radio" name="togglecats"'.
+                  $toggle_cats_crs.' value="crs" />'.$level{'crs'}.'</label></span></td>'.
+                  '</tr><tr>'.
+                  '<td>'.$title{'categorize'}.'</td>'.
+                  '<td class="LC_right_item"><span class="LC_nobreak">'.
+                  '<label><input type="radio" name="categorize"'.
+                  $can_cat_dom.' value="dom" />'.$level{'dom'}.'</label>&nbsp;'.
+                  '<label><input type="radio" name="categorize"'.
+                  $can_cat_crs.'value="crs" />'.$level{'crs'}.'</label></span></td>'.
+                  '</tr>';
+        $$rowtotal += 2;
+    } else {
+        my $css_class;
+        my $itemcount = 1;
+        my $cathash; 
+        if (ref($settings) eq 'HASH') {
+            $cathash = $settings->{'cats'};
+        }
+        if (ref($cathash) eq 'HASH') {
+            my (@cats,@trails,%allitems,%idx,@jsarray);
+            &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,
+                                                   \%allitems,\%idx,\@jsarray);
+            my $maxdepth = scalar(@cats);
+            my $colattrib = '';
+            if ($maxdepth > 2) {
+                $colattrib = ' colspan="2" ';
+            }
+            my @path;
+            if (@cats > 0) {
+                if (ref($cats[0]) eq 'ARRAY') {
+                    my $numtop = @{$cats[0]};
+                    my $maxnum = $numtop;
+                    if ((!grep(/^instcode$/,@{$cats[0]})) || ($cathash->{'instcode::0'} eq '')) {
+                        $maxnum ++;
+                    }
+                    my $lastidx;
+                    for (my $i=0; $i<$numtop; $i++) {
+                        my $parent = $cats[0][$i];
+                        $css_class = $itemcount%2?' class="LC_odd_row"':'';
+                        my $item = &escape($parent).'::0';
+                        my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','$item','$idx{$item}'".');"';
+                        $lastidx = $idx{$item};
+                        $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
+                                      .'<select name="'.$item.'"'.$chgstr.'>';
+                        for (my $k=0; $k<=$maxnum; $k++) {
+                            my $vpos = $k+1;
+                            my $selstr;
+                            if ($k == $i) {
+                                $selstr = ' selected="selected" ';
+                            }
+                            $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
+                        }
+                        $datatable .= '</select></td><td>';
+                        if ($parent eq 'instcode') {
+                            $datatable .=  '<span class="LC_nobreak">'.&mt('Official courses')
+                                           .'</span><br /><span class="LC_nobreak">('
+                                           .&mt('with institutional codes').')</span></td>'
+                                           .'<td'.$colattrib.'><span class="LC_nobreak"><label><input type="radio" name="instcode" value="1" checked="checked" />'
+                                            .&mt('Display').'</label>&nbsp;'
+                                            .'<label><input type="radio" name="instcode" value="0" />'
+                                            .&mt('Do not display').'</label></span></td>';
+                        } else {
+                            $datatable .= $parent
+                                          .'&nbsp;<label><input type="checkbox" name="deletecategory" '
+                                          .'value="'.$item.'" />'.&mt('Delete').'</label></span></td>';
+                        }
+                        my $depth = 1;
+                        push(@path,$parent);
+                        $datatable .= &build_category_rows($itemcount,\@cats,$depth,$parent,\@path,\%idx);
+                        pop(@path);
+                        $datatable .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
+                        $itemcount ++;
+                    }
                     $css_class = $itemcount%2?' class="LC_odd_row"':'';
-                    my $item = &escape($parent).'::0';
-                    my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','$item','$idx{$item}'".');"';
-                    $lastidx = $idx{$item};
-                    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
-                                  .'<select name="'.$item.'"'.$chgstr.'>';
+                    my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','addcategory_pos','$lastidx'".');"';
+                    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak"><select name="addcategory_pos"'.$chgstr.'>';
                     for (my $k=0; $k<=$maxnum; $k++) {
                         my $vpos = $k+1;
                         my $selstr;
-                        if ($k == $i) {
+                        if ($k == $numtop) {
                             $selstr = ' selected="selected" ';
                         }
                         $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                     }
-                    $datatable .= '</select></td><td>';
-                    if ($parent eq 'instcode') {
-                        $datatable .=  '<span class="LC_nobreak">'.&mt('Official courses')
-                                       .'</span><br /><span class="LC_nobreak">('
-                                       .&mt('with institutional codes').')</span></td>'
-                                       .'<td'.$colattrib.'><span class="LC_nobreak"><label><input type="radio" name="instcode" value="1" checked="checked" />'
-                                        .&mt('Display').'</label>&nbsp;'
-                                        .'<label><input type="radio" name="instcode" value="0" />'
-                                        .&mt('Do not display').'</label></span></td>';
-                    } else {
-                        $datatable .= $parent
-                                      .'&nbsp;<label><input type="checkbox" name="deletecategory" '
-                                      .'value="'.$item.'" />'.&mt('Delete').'</label></span></td>';
-                    }
-                    my $depth = 1;
-                    push(@path,$parent);
-                    $datatable .= &build_category_rows($itemcount,\@cats,$depth,$parent,\@path,\%idx);
-                    pop(@path);
-                    $datatable .= '</tr><tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr>';
+                    $datatable .= '</select></span></td><td colspan="2">'.&mt('New:').'&nbsp;'
+                                  .'<input type="text" size="20" name="addcategory_name" value="" /></td>'
+                                  .'</tr>'."\n";
                     $itemcount ++;
-                }
-                $css_class = $itemcount%2?' class="LC_odd_row"':'';
-                my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','addcategory_pos','$lastidx'".');"';
-                $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak"><select name="addcategory_pos"'.$chgstr.'>';
-                for (my $k=0; $k<=$maxnum; $k++) {
-                    my $vpos = $k+1;
-                    my $selstr;
-                    if ($k == $numtop) {
-                        $selstr = ' selected="selected" ';
-                    }
-                    $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
-                }
-                $datatable .= '</select></span></td><td colspan="2">'.&mt('New:').'&nbsp;'
-                              .'<input type="text" size="20" name="addcategory_name" value="" /></td>'
-                              .'</tr>'."\n";
-                $itemcount ++;
-                if ((!grep(/^instcode$/,@{$cats[0]})) || ($settings->{'instcode::0'} eq '')) {
-                    $css_class = $itemcount%2?' class="LC_odd_row"':'';
-                    my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','instcode_pos','$lastidx'".');"';
-                    $datatable .= '<tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr><tr '.$css_class.'><td>'.
-                                  '<span class="LC_nobreak"><select name="instcode_pos"'.$chgstr.'>';
-                    for (my $k=0; $k<=$maxnum; $k++) {
-                        my $vpos = $k+1;
-                        my $selstr;
-                        if ($k == $maxnum) {
-                            $selstr = ' selected="selected" ';
+                    if ((!grep(/^instcode$/,@{$cats[0]})) || ($cathash->{'instcode::0'} eq '')) {
+                        $css_class = $itemcount%2?' class="LC_odd_row"':'';
+                        my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','instcode_pos','$lastidx'".');"';
+                        $datatable .= '<tr><td colspan="'.$maxdepth.'" class="LC_row_separator"></td></tr><tr '.$css_class.'><td>'.
+                                      '<span class="LC_nobreak"><select name="instcode_pos"'.$chgstr.'>';
+                        for (my $k=0; $k<=$maxnum; $k++) {
+                            my $vpos = $k+1;
+                            my $selstr;
+                            if ($k == $maxnum) {
+                                $selstr = ' selected="selected" ';
+                            }
+                            $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                         }
-                        $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
+                        $datatable .= '</select></span></td><td><span class="LC_nobreak">'
+                                      .&mt('Official courses').'</span>'.'<br /><span class="LC_nobreak">('
+                                      .&mt('with institutional codes').')</span></td>'
+                                      .'<td><span class="LC_nobreak"><label><input type="radio" name="instcode" value="1" />'
+                                      .&mt('Display').'</label>&nbsp;'
+                                      .'<label><input type="radio" name="instcode" value="0" checked="checked"/>'
+                                      .&mt('Do not display').'</label></span></td></tr>';
                     }
-                    $datatable .= '</select></span></td><td><span class="LC_nobreak">'
-                                  .&mt('Official courses').'</span>'.'<br /><span class="LC_nobreak">('
-                                  .&mt('with institutional codes').')</span></td>'
-                                  .'<td><span class="LC_nobreak"><label><input type="radio" name="instcode" value="1" />'
-                                  .&mt('Display').'</label>&nbsp;'
-                                  .'<label><input type="radio" name="instcode" value="0" checked="checked"/>'
-                                  .&mt('Do not display').'</label></span></td></tr>';
                 }
+            } else {
+                $datatable .= &initialize_categories($itemcount);
             }
         } else {
-            $datatable .= &initialize_categories($itemcount);
+            $datatable .= '<td class="LC_right_item">'.$hdritem->{'header'}->[0]->{'col2'}.'</td>'
+                          .&initialize_categories($itemcount);
         }
-    } else {
-        $datatable .= '<td class="LC_right_item">'.$hdritem->{'header'}->[0]->{'col2'}.'</td>'
-                      .&initialize_categories($itemcount);
+        $$rowtotal += $itemcount;
     }
-    $$rowtotal += $itemcount;
     return $datatable;
 }
 
 sub coursecategories_javascript {
     my ($settings) = @_;
-    my ($output,$jstext);
+    my ($output,$jstext,$cathash);
     if (ref($settings) eq 'HASH') {
+        $cathash = $settings->{'cats'};
+    }
+    if (ref($cathash) eq 'HASH') {
         my (@cats,@jsarray,%idx);
-        &gather_categories($settings,\@cats,\%idx,\@jsarray);
+        &Apache::loncommon::gather_categories($cathash,\@cats,\%idx,\@jsarray);
         if (@jsarray > 0) {
             $jstext = '    var categories = Array('.scalar(@jsarray).');'."\n";
             for (my $i=0; $i<@jsarray; $i++) {
@@ -2147,7 +2224,7 @@ sub initialize_categories {
     $css_class = $itemcount%2?' class="LC_odd_row"':'';
     $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','addcategory_pos','0'".');"';
     $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
-                  .'<select name="addcategory_pos"'.$chgstr/'><option value="0">1</option>'
+                  .'<select name="addcategory_pos"'.$chgstr.'><option value="0">1</option>'
                   .'<option value="1" selected="selected">2</option></select>&nbsp;'
                   .&mt('Add category').'</td><td>'.&mt('Name:')
                   .'&nbsp;<input type="text" size="20" name="addcategory_name" value="" /></td></tr>';
@@ -2452,34 +2529,36 @@ sub modify_login {
                     'adminmail'     => 'off',
                     'newuser'       => 'off',
         );
-        foreach my $item (@toggles) {
-            if ($defaultchecked{$item} eq 'on') { 
-                if (($domconfig{'login'}{$item} eq '0') &&
-                    ($env{'form.'.$item} eq '1')) {
-                    $changes{$item} = 1;
-                } elsif (($domconfig{'login'}{$item} eq '' ||
-                          $domconfig{'login'}{$item} eq '1') &&
-                         ($env{'form.'.$item} eq '0')) {
-                    $changes{$item} = 1;
-                }
-            } elsif ($defaultchecked{$item} eq 'off') {
-                if (($domconfig{'login'}{$item} eq '1') &&
-                    ($env{'form.'.$item} eq '0')) {
-                    $changes{$item} = 1;
-                } elsif (($domconfig{'login'}{$item} eq '' ||
-                          $domconfig{'login'}{$item} eq '0') &&
-                         ($env{'form.'.$item} eq '1')) {
-                    $changes{$item} = 1;
+        if (ref($domconfig{'login'}) eq 'HASH') {
+            foreach my $item (@toggles) {
+                if ($defaultchecked{$item} eq 'on') { 
+                    if (($domconfig{'login'}{$item} eq '0') &&
+                        ($env{'form.'.$item} eq '1')) {
+                        $changes{$item} = 1;
+                    } elsif (($domconfig{'login'}{$item} eq '' ||
+                              $domconfig{'login'}{$item} eq '1') &&
+                             ($env{'form.'.$item} eq '0')) {
+                        $changes{$item} = 1;
+                    }
+                } elsif ($defaultchecked{$item} eq 'off') {
+                    if (($domconfig{'login'}{$item} eq '1') &&
+                        ($env{'form.'.$item} eq '0')) {
+                        $changes{$item} = 1;
+                    } elsif (($domconfig{'login'}{$item} eq '' ||
+                              $domconfig{'login'}{$item} eq '0') &&
+                             ($env{'form.'.$item} eq '1')) {
+                        $changes{$item} = 1;
+                    }
                 }
             }
-        }
-        if (($domconfig{'login'}{'loginheader'} eq 'text') && 
-            ($env{'form.loginheader'} eq 'image')) {
-            $changes{'loginheader'} = 1;
-        } elsif (($domconfig{'login'}{'loginheader'} eq '' ||
-                  $domconfig{'login'}{'loginheader'} eq 'image') &&
-                 ($env{'form.loginheader'} eq 'text')) {
-            $changes{'loginheader'} = 1;
+            if (($domconfig{'login'}{'loginheader'} eq 'text') && 
+                ($env{'form.loginheader'} eq 'image')) {
+                $changes{'loginheader'} = 1;
+            } elsif (($domconfig{'login'}{'loginheader'} eq '' ||
+                      $domconfig{'login'}{'loginheader'} eq 'image') &&
+                     ($env{'form.loginheader'} eq 'text')) {
+                $changes{'loginheader'} = 1;
+            }
         }
         if (keys(%changes) > 0 || $colchgtext) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
@@ -2512,6 +2591,7 @@ sub color_font_choices {
             img => "Header",
             bgs => "Background colors",
             links => "Link colors",
+            images => "Images",
             font => "Font color",
             pgbg => "Page",
             tabbg => "Header",
@@ -2527,6 +2607,11 @@ sub modify_rolecolors {
     my ($r,$dom,$confname,$roles,%domconfig) = @_;
     my ($resulttext,%rolehash);
     $rolehash{'rolecolors'} = {};
+    if (ref($domconfig{'rolecolors'}) ne 'HASH') {
+        if ($domconfig{'rolecolors'} eq '') {
+            $domconfig{'rolecolors'} = {};
+        }
+    }
     my ($errors,%changes) = &modify_colors($r,$dom,$confname,$roles,
                          $domconfig{'rolecolors'},$rolehash{'rolecolors'});
     my $putresult = &Apache::lonnet::put_dom('configuration',\%rolehash,
@@ -2553,7 +2638,7 @@ sub modify_rolecolors {
 sub modify_colors {
     my ($r,$dom,$confname,$roles,$domconfig,$confhash) = @_;
     my (%changes,%choices);
-    my @bgs = ('pgbg','mainbg','sidebg');
+    my @bgs;
     my @links = ('link','alink','vlink');
     my @logintext;
     my @images;
@@ -2568,8 +2653,10 @@ sub modify_colors {
         }
         if ($role eq 'login') {
             @images = ('img','logo','domlogo','login');
+            @bgs = ('pgbg','mainbg','sidebg');
         } else {
             @images = ('img');
+            @bgs = ('pgbg','tabbg','sidebg'); 
         }
         $confhash->{$role}{'font'} = $env{'form.'.$role.'_font'};
         foreach my $item (@bgs,@links,@logintext) {
@@ -3120,7 +3207,11 @@ sub modify_quotas {
     }
     foreach my $key (keys(%formhash)) {
         if ($formhash{$key} ne '') {
-            if (!exists($domconfig{'quotas'}{$key})) {
+            if (ref($domconfig{'quotas'}) eq 'HASH') {
+                if (!exists($domconfig{'quotas'}{$key})) {
+                    $changes{$key} = 1;
+                }
+            } else {
                 $changes{$key} = 1;
             }
         }
@@ -3640,21 +3731,81 @@ sub modify_usercreation {
     my @email_rule = &Apache::loncommon::get_env_multiple('form.email_rule');
     my @contexts = ('author','course','selfcreate');
     foreach my $item(@contexts) {
-        $cancreate{$item} = $env{'form.can_createuser_'.$item};
         if ($item eq 'selfcreate') {
+            @{$cancreate{$item}} = &Apache::loncommon::get_env_multiple('form.can_createuser_'.$item);
             my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
             if (!((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || ($domdefaults{'auth_def'} eq 'localauth'))) {
-                if (($cancreate{$item} eq 'any') || ($cancreate{$item} eq 'login')) {
-                    $warningmsg = &mt('Although account creation has been set to be available for institutional logins, currently default authentication in this domain has not been set to support this.').' '.&mt('You need to set the default authentication type to Kerberos 4 or 5 (with a Kerberos domain specified), or to Local authentication, if the localauth module has been customized in your domain to authenticate institutional logins.');   
+                if (ref($cancreate{$item}) eq 'ARRAY') { 
+                    if (grep(/^login$/,@{$cancreate{$item}})) {
+                        $warningmsg = &mt('Although account creation has been set to be available for institutional logins, currently default authentication in this domain has not been set to support this.').' '.&mt('You need to set the default authentication type to Kerberos 4 or 5 (with a Kerberos domain specified), or to Local authentication, if the localauth module has been customized in your domain to authenticate institutional logins.');   
+                    }
                 }
             }
+        } else {
+            $cancreate{$item} = $env{'form.can_createuser_'.$item};
         }
     }
     if (ref($curr_usercreation{'cancreate'}) eq 'HASH') {
         foreach my $item (@contexts) {
-            if ($curr_usercreation{'cancreate'}{$item} ne $cancreate{$item}) {
-                push(@{$changes{'cancreate'}},$item);
-            } 
+            if ($item eq 'selfcreate') {
+                if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') { 
+                    foreach my $curr (@{$curr_usercreation{'cancreate'}{$item}}) {
+                        if (!grep(/^$curr$/,@{$cancreate{$item}})) {
+                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                push(@{$changes{'cancreate'}},$item);
+                            }
+                        }
+                    }
+                } else {
+                    if ($curr_usercreation{'cancreate'}{$item} eq '') {
+                        if (@{$cancreate{$item}} > 0) {
+                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                push(@{$changes{'cancreate'}},$item);
+                            }
+                        }
+                    } else {
+                        if ($curr_usercreation{'cancreate'}{$item} eq 'any') {
+                            if (@{$cancreate{$item}} < 3) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        } elsif ($curr_usercreation{'cancreate'}{$item} eq 'none') {
+                            if (@{$cancreate{$item}} > 0) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        } elsif (!grep(/^$curr_usercreation{'cancreate'}{$item}$/,@{$cancreate{$item}})) {
+                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                push(@{$changes{'cancreate'}},$item);
+                            }
+                        }
+                    }
+                }
+                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                    foreach my $type (@{$cancreate{$item}}) {
+                        if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') {
+                            if (!grep(/^$type$/,@{$curr_usercreation{'cancreate'}{$item}})) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        } elsif (($curr_usercreation{'cancreate'}{$item} ne 'any') &&
+                                 ($curr_usercreation{'cancreate'}{$item} ne 'none')) {
+                            if ($curr_usercreation{'cancreate'}{$item} ne $type) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        }
+                    }
+                }
+            } else {
+                if ($curr_usercreation{'cancreate'}{$item} ne $cancreate{$item}) {
+                    push(@{$changes{'cancreate'}},$item);
+                }
+            }
         }
     } elsif (ref($curr_usercreation{'cancreate'}) eq 'ARRAY') {
         foreach my $item (@contexts) {
@@ -3761,6 +3912,12 @@ sub modify_usercreation {
 
     my $putresult = &Apache::lonnet::put_dom('configuration',\%usercreation_hash,
                                              $dom);
+
+    my %selfcreatetypes = (
+                             sso   => 'users authenticated by institutional single sign on',
+                             login => 'users authenticated by institutional log-in',
+                             email => 'users who provide a valid e-mail address for use as the username',
+                          );
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             $resulttext = &mt('Changes made:').'<ul>';
@@ -3769,16 +3926,14 @@ sub modify_usercreation {
                 foreach my $type (@{$changes{'cancreate'}}) {
                     my $chgtext =  $lt{$type}.', ';
                     if ($type eq 'selfcreate') {
-                        if ($cancreate{$type} eq 'none') {
+                        if (@{$cancreate{$type}} == 0) {
                             $chgtext .= &mt('creation of a new user account is not permitted.');
-                        } elsif ($cancreate{$type} eq 'any') {
-                            $chgtext .= &mt('creation of a new account is permitted for users authenticated by institutional log-in and SSO, and also for e-mail addresses used as usernames.');
-                        } elsif ($cancreate{$type} eq 'login') {
-                            $chgtext .= &mt('creation of a new account is only permitted for users authenticated by institutional log-in.');
-                        } elsif ($cancreate{$type} eq 'sso') {
-                            $chgtext .= &mt('creation of a new account is only permitted for users authenticated by institutional single sign on.');
-                        } elsif ($cancreate{$type} eq 'email') {
-                            $chgtext .= &mt('creation of a new account is only permitted for users who provide a valid e-mail address for use as the username.');
+                        } else {
+                            $chgtext .= &mt('creation of a new account is permitted for:<ul>');
+                            foreach my $case (@{$cancreate{$type}}) {
+                                $chgtext .= '<li>'.$selfcreatetypes{$case}.'</li>';
+                            }
+                            $chgtext .= '</ul>';
                         }
                     } else {
                         if ($cancreate{$type} eq 'none') {
@@ -3983,7 +4138,7 @@ sub modify_defaults {
     my ($dom,$r) = @_;
     my ($resulttext,$mailmsgtxt,%newvalues,%changes,@errors);
     my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
-    my @items = ('auth_def','auth_arg_def','lang_def');
+    my @items = ('auth_def','auth_arg_def','lang_def','timezone_def');
     my @authtypes = ('internal','krb4','krb5','localauth');
     foreach my $item (@items) {
         $newvalues{$item} = $env{'form.'.$item};
@@ -4004,6 +4159,13 @@ sub modify_defaults {
                     push(@errors,$item);
                 }
             }
+        } elsif ($item eq 'timezone_def') {
+            if ($newvalues{$item} ne '') {
+                my @timezones = &DateTime::TimeZone->all_names;
+                if (!grep(/^\Q$newvalues{$item}\E/,@timezones)) {
+                    push(@errors,$item);   
+                }
+            }
         }
         if (grep(/^\Q$item\E$/,@errors)) {
             $newvalues{$item} = $domdefaults{$item};
@@ -4015,6 +4177,7 @@ sub modify_defaults {
                          defaults => { auth_def => $newvalues{'auth_def'},
                                        auth_arg_def => $newvalues{'auth_arg_def'},
                                        lang_def => $newvalues{'lang_def'},
+                                       timezone_def => $newvalues{'timezone_def'},
                                      }
                        );
     my $title = &defaults_titles();
@@ -4047,10 +4210,12 @@ sub modify_defaults {
             my $cachetime = 24*60*60;
             &Apache::lonnet::do_cache_new('domdefaults',$dom,
                                           $defaults_hash{'defaults'},$cachetime);
-            my $sysmail = $r->dir_config('lonSysEMail');
-            &Apache::lonmsg::sendemail($sysmail,"LON-CAPA Domain Settings Change - $dom",$mailmsgtext);
+            if ($changes{'auth_def'} || $changes{'auth_arg_def'} || $changes{'lang_def'}) {
+                my $sysmail = $r->dir_config('lonSysEMail');
+                &Apache::lonmsg::sendemail($sysmail,"LON-CAPA Domain Settings Change - $dom",$mailmsgtext);
+            }
         } else {
-            $resulttext = &mt('No changes made to default authentication/language settings');
+            $resulttext = &mt('No changes made to default authentication/language/timezone settings');
         }
     } else {
         $resulttext = '<span class="LC_error">'.
@@ -4147,67 +4312,85 @@ sub modify_scantron {
 
 sub modify_coursecategories {
     my ($dom,%domconfig) = @_;
-    my ($resulttext,%deletions,%reorderings,%needreordering,%adds,$errors);
+    my ($resulttext,%deletions,%reorderings,%needreordering,%adds,%changes,$errors,
+        $cathash);
     my @deletecategory = &Apache::loncommon::get_env_multiple('form.deletecategory');
-    if (($domconfig{'coursecategories'}{'instcode::0'} ne '')  && ($env{'form.instcode'} == 0)) {
-        push (@deletecategory,'instcode::0');
-    }
-    my (@predelcats,@predeltrails,%predelallitems);
     if (ref($domconfig{'coursecategories'}) eq 'HASH') {
+        $cathash = $domconfig{'coursecategories'}{'cats'};
+        if ($domconfig{'coursecategories'}{'togglecats'} ne $env{'form.togglecats'}) {
+            $changes{'togglecats'} = 1;
+            $domconfig{'coursecategories'}{'togglecats'} = $env{'form.togglecats'};
+        }
+        if ($domconfig{'coursecategories'}{'categorize'} ne $env{'form.categorize'}) {
+            $changes{'categorize'} = 1;
+            $domconfig{'coursecategories'}{'categorize'} = $env{'form.categorize'};
+        }
+    } else {
+        $changes{'togglecats'} = 1;
+        $changes{'categorize'} = 1;
+        $domconfig{'coursecategories'}{'togglecats'} = $env{'form.togglecats'};
+        $domconfig{'coursecategories'}{'categorize'} = $env{'form.categorize'};
+    }
+    if (ref($cathash) eq 'HASH') {
+        if (($domconfig{'coursecategories'}{'cats'}{'instcode::0'} ne '')  && ($env{'form.instcode'} == 0)) {
+            push (@deletecategory,'instcode::0');
+        }
+    }
+    my (@predelcats,@predeltrails,%predelallitems,%sort_by_deltrail);
+    if (ref($cathash) eq 'HASH') {
         if (@deletecategory > 0) {
             #FIXME Need to remove category from all courses using a deleted category 
-            &extract_categories($domconfig{'coursecategories'},\@predelcats,\@predeltrails,\%predelallitems);
+            &Apache::loncommon::extract_categories($cathash,\@predelcats,\@predeltrails,\%predelallitems);
             foreach my $item (@deletecategory) {
-                if ($domconfig{'coursecategories'}{$item} ne '') {
-                    delete($domconfig{'coursecategories'}{$item});
+                if ($domconfig{'coursecategories'}{'cats'}{$item} ne '') {
+                    delete($domconfig{'coursecategories'}{'cats'}{$item});
                     $deletions{$item} = 1;
-                    &recurse_cat_deletes($item,$domconfig{'coursecategories'},
-                                         \%deletions);
+                    &recurse_cat_deletes($item,$cathash,\%deletions);
                 }
             }
         }
-        foreach my $item (keys(%{$domconfig{'coursecategories'}})) {
+        foreach my $item (keys(%{$cathash})) {
             my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
-            if ($domconfig{'coursecategories'}{$item} ne $env{'form.'.$item}) {
+            if ($cathash->{$item} ne $env{'form.'.$item}) {
                 $reorderings{$item} = 1;
-                $domconfig{'coursecategories'}{$item} = $env{'form.'.$item};
+                $domconfig{'coursecategories'}{'cats'}{$item} = $env{'form.'.$item};
             }
             if ($env{'form.addcategory_name_'.$item} ne '') {
                 my $newcat = $env{'form.addcategory_name_'.$item};
                 my $newdepth = $depth+1;
                 my $newitem = &escape($newcat).':'.&escape($cat).':'.$newdepth;
-                $domconfig{'coursecategories'}{$newitem} = $env{'form.addcategory_pos_'.$item};
+                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.addcategory_pos_'.$item};
                 $adds{$newitem} = 1; 
             }
             if ($env{'form.subcat_'.$item} ne '') {
                 my $newcat = $env{'form.subcat_'.$item};
                 my $newdepth = $depth+1;
                 my $newitem = &escape($newcat).':'.&escape($cat).':'.$newdepth;
-                $domconfig{'coursecategories'}{$newitem} = 0;
+                $domconfig{'coursecategories'}{'cats'}{$newitem} = 0;
                 $adds{$newitem} = 1;
             }
         }
     }
     if ($env{'form.instcode'} eq '1') {
-        if (ref($domconfig{'coursecategories'}) eq 'HASH') {
+        if (ref($cathash) eq 'HASH') {
             my $newitem = 'instcode::0';
-            if ($domconfig{'coursecategories'}{$newitem} eq '') {  
-                $domconfig{'coursecategories'}{$newitem} = $env{'form.instcode_pos'};
+            if ($cathash->{$newitem} eq '') {  
+                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
                 $adds{$newitem} = 1;
             }
         } else {
             my $newitem = 'instcode::0';
-            $domconfig{'coursecategories'}{$newitem} = $env{'form.instcode_pos'};
+            $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
             $adds{$newitem} = 1;
         }
     }
     if ($env{'form.addcategory_name'} ne '') {
         my $newitem = &escape($env{'form.addcategory_name'}).'::0';
-        $domconfig{'coursecategories'}{$newitem} = $env{'form.addcategory_pos'};
+        $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.addcategory_pos'};
         $adds{$newitem} = 1;
     }
+    my $putresult;
     if ((keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
-        my %sort_by_deltrail;
         if (keys(%deletions) > 0) {
             foreach my $key (keys(%deletions)) {
                 if ($predelallitems{$key} ne '') {
@@ -4216,7 +4399,7 @@ sub modify_coursecategories {
             }
         }
         my (@chkcats,@chktrails,%chkallitems);
-        &extract_categories($domconfig{'coursecategories'},\@chkcats,\@chktrails,\%chkallitems);
+        &Apache::loncommon::extract_categories($domconfig{'coursecategories'}{'cats'},\@chkcats,\@chktrails,\%chkallitems);
         if (ref($chkcats[0]) eq 'ARRAY') {
             my $depth = 0;
             my $chg = 0;
@@ -4228,56 +4411,80 @@ sub modify_coursecategories {
                 } else {
                     $item = &escape($name).'::0';
                     if ($chg) {
-                        $domconfig{'coursecategories'}{$item} -= $chg;
+                        $domconfig{'coursecategories'}{'cats'}{$item} -= $chg;
                     }
                     $depth ++; 
-                    &recurse_check(\@chkcats,$domconfig{'coursecategories'},$depth,$name);
+                    &recurse_check(\@chkcats,$domconfig{'coursecategories'}{'cats'},$depth,$name);
                     $depth --;
                 }
             }
         }
-        my $putresult = &Apache::lonnet::put_dom('configuration',\%domconfig,$dom);
-        my (@cats,@trails,%allitems);
-        &extract_categories($domconfig{'coursecategories'},\@cats,\@trails,\%allitems);
+    }
+    if ((keys(%changes) > 0) || (keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
+        $putresult = &Apache::lonnet::put_dom('configuration',\%domconfig,$dom);
         if ($putresult eq 'ok') {
+            my %title = (
+                         togglecats  => 'Show/Hide a course in the catalog',
+                         categorize     => 'Category assigned to course',
+                        );
+            my %level = (
+                         dom => 'set from "Modify Course" (Domain)',
+                         crs => 'set from "Parameters" (Course)',
+                        );
             $resulttext = &mt('Changes made:').'<ul>';
-            if (keys(%deletions) > 0) {
-                $resulttext .= '<li>'.&mt('Deleted categories:').'<ul>';
-                foreach my $predeltrail (sort {$a <=> $b } (keys(%sort_by_deltrail))) { 
-                    $resulttext .= '<li>'.$predeltrails[$predeltrail].'</li>';
-                }
-                $resulttext .= '</ul></li>';
+            if ($changes{'togglecats'}) {
+                $resulttext .= '<li>'.&mt("$title{'togglecats'} $level{$env{'form.togglecats'}}").'</li>'; 
             }
-            if (keys(%reorderings) > 0) {
-                my %sort_by_trail;
-                $resulttext .= '<li>'.&mt('Reordered categories:').'<ul>';
-                foreach my $key (keys(%reorderings)) {
-                    if ($allitems{$key} ne '') {
-                        $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
-                    }
-                }
-                foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
-                    $resulttext .= '<li>'.$trails[$trail].'</li>';
-                }
-                $resulttext .= '</ul></li>';
+            if ($changes{'categorize'}) {
+                $resulttext .= '<li>'.&mt("$title{'categorize'} $level{$env{'form.categorize'}}").'</li>';
             }
-            if (keys(%adds) > 0) {
-                my %sort_by_trail;
-                $resulttext .= '<li>'.&mt('Added categories:').'<ul>';
-                foreach my $key (keys(%adds)) {
-                    if ($allitems{$key} ne '') {
-                        $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
+            if ((keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
+                my $cathash;
+                if (ref($domconfig{'coursecategories'}) eq 'HASH') {
+                    $cathash = $domconfig{'coursecategories'}{'cats'};
+                } else {
+                    $cathash = {};
+                } 
+                my (@cats,@trails,%allitems);
+                    &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems);
+                if (keys(%deletions) > 0) {
+                    $resulttext .= '<li>'.&mt('Deleted categories:').'<ul>';
+                    foreach my $predeltrail (sort {$a <=> $b } (keys(%sort_by_deltrail))) { 
+                        $resulttext .= '<li>'.$predeltrails[$predeltrail].'</li>';
+                    }
+                    $resulttext .= '</ul></li>';
+                }
+                if (keys(%reorderings) > 0) {
+                    my %sort_by_trail;
+                    $resulttext .= '<li>'.&mt('Reordered categories:').'<ul>';
+                    foreach my $key (keys(%reorderings)) {
+                        if ($allitems{$key} ne '') {
+                            $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
+                        }
                     }
+                    foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
+                        $resulttext .= '<li>'.$trails[$trail].'</li>';
+                    }
+                    $resulttext .= '</ul></li>';
                 }
-                foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
-                    $resulttext .= '<li>'.$trails[$trail].'</li>';
+                if (keys(%adds) > 0) {
+                    my %sort_by_trail;
+                    $resulttext .= '<li>'.&mt('Added categories:').'<ul>';
+                    foreach my $key (keys(%adds)) {
+                        if ($allitems{$key} ne '') {
+                            $sort_by_trail{$allitems{$key}} = $trails[$allitems{$key}];
+                        }
+                    }
+                    foreach my $trail (sort {$a <=> $b } (keys(%sort_by_trail))) {
+                        $resulttext .= '<li>'.$trails[$trail].'</li>';
+                    }
+                    $resulttext .= '</ul></li>';
                 }
-                $resulttext .= '</ul></li>';
             }
             $resulttext .= '</ul>';
         } else {
             $resulttext = '<span class="LC_error">'.
-                &mt('An error occurred: [_1]',$putresult).'</span>';
+                          &mt('An error occurred: [_1]',$putresult).'</span>';
         }
     } else {
         $resulttext = &mt('No changes made to course categories');
@@ -4323,91 +4530,6 @@ sub recurse_cat_deletes {
         }
     }
     return;
-}
-
-sub gather_categories {
-    my ($categories,$cats,$idx,$jsarray) = @_;
-    my %counters;
-    my $num = 0;
-    foreach my $item (keys(%{$categories})) {
-        my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
-        if ($container eq '' && $depth == 0) {
-            $cats->[$depth][$categories->{$item}] = $cat;
-        } else {
-            $cats->[$depth]{$container}[$categories->{$item}] = $cat;
-        }
-        my ($escitem,$tail) = split(/:/,$item,2);
-        if ($counters{$tail} eq '') {
-            $counters{$tail} = $num;
-            $num ++;
-        }
-        if (ref($idx) eq 'HASH') {
-            $idx->{$item} = $counters{$tail};
-        }
-        if (ref($jsarray) eq 'ARRAY') { 
-            push(@{$jsarray->[$counters{$tail}]},$item);
-        }
-    }
-    return;
-}
-
-sub extract_categories {
-    my ($categories,$cats,$trails,$allitems,$idx,$jsarray) = @_;
-    if (ref($categories) eq 'HASH') {
-        &gather_categories($categories,$cats,$idx,$jsarray);
-        if (ref($cats->[0]) eq 'ARRAY') {
-            for (my $i=0; $i<@{$cats->[0]}; $i++) {
-                my $name = $cats->[0][$i];
-                my $item = &escape($name).'::0';
-                my $trailstr;
-                if ($name eq 'instcode') {
-                    $trailstr = &mt('Official courses (with institutional codes)');
-                } else {
-                    $trailstr = $name;
-                }
-                if ($allitems->{$item} eq '') {
-                    push(@{$trails},$trailstr);
-                    $allitems->{$item} = scalar(@{$trails})-1;
-                }
-                my @parents = ($name);
-                if (ref($cats->[1]{$name}) eq 'ARRAY') {
-                    for (my $j=0; $j<@{$cats->[1]{$name}}; $j++) {
-                        my $category = $cats->[1]{$name}[$j];
-                        &recurse_categories($cats,2,$category,$trails,$allitems,\@parents);
-                    }
-                }
-            }
-        }
-    }
-    return;
-}
-
-sub recurse_categories {
-    my ($cats,$depth,$category,$trails,$allitems,$parents) = @_;
-    my $shallower = $depth - 1;
-    if (ref($cats->[$depth]{$category}) eq 'ARRAY') {
-        for (my $k=0; $k<@{$cats->[$depth]{$category}}; $k++) {
-            my $name = $cats->[$depth]{$category}[$k];
-            my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
-            my $trailstr = join(' -&gt; ',(@{$parents},$category));
-            if ($allitems->{$item} eq '') { 
-                push(@{$trails},$trailstr);
-                $allitems->{$item} = scalar(@{$trails})-1;
-            }
-            my $deeper = $depth+1;
-            push(@{$parents},$category);
-            &recurse_categories($cats,$deeper,$name,$trails,$allitems,$parents);
-            pop(@{$parents});
-        }
-    } else {
-        my $item = &escape($category).':'.&escape($parents->[-1]).':'.$shallower;
-        my $trailstr = join(' -&gt; ',(@{$parents},$category));
-        if ($allitems->{$item} eq '') {
-            push(@{$trails},$trailstr);
-            $allitems->{$item} = scalar(@{$trails})-1;
-        }
-    }
-    return;
 }
 
 1;