--- loncom/interface/domainprefs.pm	2008/01/16 20:42:48	1.41
+++ loncom/interface/domainprefs.pm	2008/06/27 00:42:48	1.57
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.41 2008/01/16 20:42:48 raeburn Exp $
+# $Id: domainprefs.pm,v 1.57 2008/06/27 00:42:48 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,9 +36,11 @@ use Apache::lonnet;
 use Apache::loncommon();
 use Apache::lonhtmlcommon();
 use Apache::lonlocal;
-use LONCAPA();
+use Apache::lonmsg();
+use LONCAPA;
 use LONCAPA::Enrollment;
 use File::Copy;
+use Locale::Language;
 
 sub handler {
     my $r=shift;
@@ -68,10 +70,12 @@ sub handler {
     my %domconfig =
       &Apache::lonnet::get_dom('configuration',['login','rolecolors',
                 'quotas','autoenroll','autoupdate','directorysrch',
-                'usercreation','usermodification','contacts'],$dom);
-    my @prefs_order = ('rolecolors','login','quotas','autoenroll',
+                'usercreation','usermodification','contacts','defaults',
+                'scantron','coursecategories'],$dom);
+    my @prefs_order = ('rolecolors','login','defaults','quotas','autoenroll',
                        'autoupdate','directorysrch','contacts',
-                       'usercreation','usermodification');
+                       'usercreation','usermodification','scantron',
+                       'coursecategories');
     my %prefs = (
         'rolecolors' =>
                    { text => 'Default color schemes',
@@ -91,6 +95,12 @@ sub handler {
                       header => [{col1 => 'Item',
                                   col2 => '',}],
                     },
+        'defaults' => 
+                    { text => 'Default authentication/language/timezone',
+                      help => '',
+                      header => [{col1 => 'Setting',
+                                  col2 => 'Value'}],
+                    },
         'quotas' => 
                     { text => 'Default quotas for user portfolios',
                       help => 'Default_User_Quota',
@@ -108,7 +118,7 @@ sub handler {
                      help => 'Domain_Auto_Update',
                      header => [{col1 => 'Setting',
                                  col2 => 'Value',},
-                                {col1 => 'User Population',
+                                {col1 => 'User population',
                                  col2 => 'Updataeable user data'}],
                   },
         'directorysrch' => 
@@ -127,12 +137,12 @@ sub handler {
         'usercreation' => 
                   { text => 'User creation',
                     help => 'Domain_User_Creation',
-                    header => [{col1 => 'Format Rule Type',
-                                col2 => 'Format Rules in force'},
+                    header => [{col1 => 'Format rule type',
+                                col2 => 'Format rules in force'},
                                {col1 => 'User account creation',
                                 col2 => 'Usernames which may be created',},
                                {col1 => 'Context',
-                                col2 => 'Assignable Authentication Types'}],
+                                col2 => 'Assignable authentication types'}],
                   },
         'usermodification' => 
                   { text => 'User modification',
@@ -142,6 +152,22 @@ sub handler {
                                {col1 => 'Target user has role',
                                 col2 => 'User information updateable in course context'}],
                   },
+        'scantron' => 
+                  { text => 'Scantron format file',
+                    help => 'Domain_Scantron_Formats',
+                    header => [ {col1 => 'Item',
+                                 col2 => '',
+                              }],
+                  },
+        'coursecategories' => 
+                  { text => 'Cataloging of courses',
+                    help => 'Domain_Course_Catalog',
+                    header => [{col1 => 'Category settings',  
+                                col2 => '',},
+                               {col1 => 'Categories',
+                                col2 => '',
+                               }],
+                  }
     );
     my @roles = ('student','coordinator','author','admin');
     my @actions = &Apache::loncommon::get_env_multiple('form.actions');
@@ -276,10 +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); 
@@ -290,7 +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");
@@ -300,9 +326,9 @@ sub handler {
         $r->print('</div><div class="LC_clear_float_footer"></div><h3>'.
                   &mt('Display options').'</h3>'."\n".
                   '<p><span class="LC_nobreak">'.&mt('Display using: ')."\n".
-                  '<label><input type="radio" name="numcols" value="1">'.
-                  &mt('one column').'</label>&nbsp;&nbsp;'.
-                  '<input type="radio" name="numcols" value="2">'.
+                  '<label><input type="radio" name="numcols" value="1" />'.
+                  &mt('one column').'</label>&nbsp;&nbsp;<label>'.
+                  '<input type="radio" name="numcols" value="2" />'.
                   &mt('two columns').'</label></span></p>');
         $r->print(&print_footer($r,$phase,'display','Go'));
         $r->print('</form>');
@@ -333,6 +359,12 @@ sub process_changes {
         $output = &modify_usermodification($dom,%domconfig);
     } elsif ($action eq 'contacts') {
         $output = &modify_contacts($dom,%domconfig);
+    } elsif ($action eq 'defaults') {
+        $output = &modify_defaults($dom,$r);
+    } elsif ($action eq 'scantron') {
+        $output = &modify_scantron($r,$dom,$confname,%domconfig);
+    } elsif ($action eq 'coursecategories') {
+        $output = &modify_coursecategories($dom,%domconfig);
     }
     return $output;
 }
@@ -340,7 +372,11 @@ sub process_changes {
 sub print_config_box {
     my ($r,$dom,$confname,$phase,$action,$item,$settings) = @_;
     my $rowtotal = 0;
-    my $output = 
+    my $output;
+    if ($action eq 'coursecategories') {
+        $output = &coursecategories_javascript($settings);
+    }  
+    $output .= 
          '<table class="LC_nested_outer">
           <tr>
            <th align="left"><span class="LC_nobreak">'.&mt($item->{text}).
@@ -352,7 +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>
@@ -369,6 +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,$settings,\$rowtotal);
         }
@@ -380,8 +419,10 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$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') {
@@ -401,6 +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>
@@ -443,7 +486,7 @@ sub print_config_box {
         $output .= '
               <td class="LC_right_item">'.$item->{'header'}->[0]->{'col2'}.'</td>
              </tr>';
-        $rowtotal ++;      
+        $rowtotal ++;
         if ($action eq 'login') {
             $output .= &print_login($dom,$confname,$phase,$settings,\$rowtotal);
         } elsif ($action eq 'quotas') {
@@ -454,6 +497,10 @@ sub print_config_box {
             $output .= &print_directorysrch($dom,$settings,\$rowtotal);
         } elsif ($action eq 'contacts') {
             $output .= &print_contacts($dom,$settings,\$rowtotal);
+        } elsif ($action eq 'defaults') {
+            $output .= &print_defaults($dom,\$rowtotal);
+        } elsif ($action eq 'scantron') {
+            $output .= &print_scantronformat($r,$dom,$confname,$settings,\$rowtotal);
         }
     }
     $output .= '
@@ -474,7 +521,7 @@ function changePage(formname,newphase) {
     numchecked = 0;
     if (formname == document.pickactions) {
         if (formname.actions.length > 0) {
-            for (var i = 0; i <formname.actions.length; i++) {
+            for (var i = 0; i<formname.actions.length; i++) {
                 if (formname.actions[i].checked) {
                     numchecked ++;
                 }
@@ -568,10 +615,23 @@ sub print_footer {
 sub print_login {
     my ($dom,$confname,$phase,$settings,$rowtotal) = @_;
     my %choices = &login_choices();
-    my ($catalogon,$catalogoff,$adminmailon,$adminmailoff,$loginheader);
-    $catalogon = ' checked="checked" ';
-    $adminmailoff = ' checked="checked" ';
-    $loginheader = 'image';
+    my %defaultchecked = ( 
+                           'coursecatalog' => 'on',
+                           'adminmail'     => 'off',
+                           'newuser'       => 'off',
+                         );
+    my @toggles = ('coursecatalog','adminmail','newuser');
+    my (%checkedon,%checkedoff);
+    foreach my $item (@toggles) {
+        if ($defaultchecked{$item} eq 'on') { 
+            $checkedon{$item} = ' checked="checked" ';
+            $checkedoff{$item} = ' ';
+        } elsif ($defaultchecked{$item} eq 'off') {
+            $checkedoff{$item} = ' checked="checked" ';
+            $checkedon{$item} = ' ';
+        }
+    }
+    my $loginheader = 'image';
     my @images = ('img','logo','domlogo','login');
     my @logintext = ('textcol','bgcol');
     my @bgs = ('pgbg','mainbg','sidebg');
@@ -595,13 +655,14 @@ sub print_login {
         $defaults{'links'}{$item} = $defaultdesign{'login.'.$item};
     }
     if (ref($settings) eq 'HASH') {
-        if ($settings->{'coursecatalog'} eq '0') {
-            $catalogoff = $catalogon;
-            $catalogon = ' ';
-        }
-        if ($settings->{'adminmail'} eq '1') {
-            $adminmailon = $adminmailoff;
-            $adminmailoff = ' ';
+        foreach my $item (@toggles) {
+            if ($settings->{$item} eq '1') {
+                $checkedon{$item} =  ' checked="checked" ';
+                $checkedoff{$item} = ' ';
+            } elsif ($settings->{$item} eq '0') {
+                $checkedoff{$item} =  ' checked="checked" ';
+                $checkedon{$item} = ' ';
+            }
         }
         foreach my $item (@images) {
             if ($settings->{$item} ne '') {
@@ -663,25 +724,19 @@ sub print_login {
                                                   domlogo => 'Domain Logo',
                                                   login => 'Login box');
     my $itemcount = 1;
-    my $css_class = $itemcount%2?' class="LC_odd_row"':'';
-    my $datatable = 
-        '<tr'.$css_class.'><td colspan="2">'.$choices{'coursecatalog'}.
-        '</td><td>'.
-        '<span class="LC_nobreak"><label><input type="radio" name="coursecatalog"'.
-        $catalogon.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
-        '<label><input type="radio" name="coursecatalog"'.
-        $catalogoff.'value="0" />'.&mt('No').'</label></span></td>'.
-        '</tr>';
-    $itemcount ++;
-    $css_class = $itemcount%2?' class="LC_odd_row"':'';
-    $datatable .= '<tr'.$css_class.'>'.
-        '<td colspan="2">'.$choices{'adminmail'}.'</td>'.
-        '<td><span class="LC_nobreak">'.
-        '<label><input type="radio" name="adminmail"'.
-        $adminmailon.' value="1" />'.&mt('Yes').'</label>&nbsp;'.
-        '<label><input type="radio" name="adminmail"'.
-        $adminmailoff.'value="0" />'.&mt('No').'</label></span></td></tr>';
-    $itemcount ++;
+    my ($css_class,$datatable);
+    foreach my $item (@toggles) {
+        $css_class = $itemcount%2?' class="LC_odd_row"':'';
+        $datatable .=  
+            '<tr'.$css_class.'><td colspan="2">'.$choices{$item}.
+            '</td><td>'.
+            '<span class="LC_nobreak"><label><input type="radio" name="'.
+            $item.'"'.$checkedon{$item}.' value="1" />'.&mt('Yes').
+            '</label>&nbsp;<label><input type="radio" name="'.$item.'"'.
+            $checkedoff{$item}.' value="0" />'.&mt('No').'</label></span></td>'.
+            '</tr>';
+        $itemcount ++;
+    }
     $datatable .= &display_color_options($dom,$confname,$phase,'login',$itemcount,\%choices,\%is_custom,\%defaults,\%designs,\@images,\@bgs,\@links,\%alt_text,$rowtotal,\@logintext,$loginheader);
     $datatable .= '</tr></table></td></tr>';
     return $datatable;
@@ -692,6 +747,7 @@ sub login_choices {
         &Apache::lonlocal::texthash (
             coursecatalog => 'Display Course Catalog link?',
             adminmail => "Display Administrator's E-mail Address?",
+            newuser   => "Link to create a user account",
             img => "Header",
             logo => "Main Logo",
             domlogo => "Domain Logo",
@@ -1089,7 +1145,7 @@ ENDCOL
 sub print_quotas {
     my ($dom,$settings,$rowtotal) = @_;
     my $datatable;
-    my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     my $typecount = 0;
     my $css_class;
     if (ref($types) eq 'ARRAY') {
@@ -1219,7 +1275,7 @@ sub print_autoupdate {
                   '</tr>';
         $$rowtotal += 2;
     } else {
-        my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
         my @fields = ('lastname','firstname','middlename','gen',
                       'permanentemail','id');
         my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
@@ -1279,7 +1335,7 @@ sub print_directorysrch {
         }
     }
     my ($searchtitles,$titleorder) = &sorted_searchtitles();
-    my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
 
     my $numinrow = 4;
     my $cansrchrow = 0;
@@ -1472,22 +1528,42 @@ sub print_usercreation {
                 $rowcount ++;
             }
         }
+        my ($emailrules,$emailruleorder) = 
+            &Apache::lonnet::inst_userrules($dom,'email');
+        if (ref($emailrules) eq 'HASH') {
+            if (keys(%{$emailrules}) > 0) {
+                $datatable .= &user_formats_row('email',$settings,$emailrules,
+                                                $emailruleorder,$numinrow,$rowcount);
+                $$rowtotal ++;
+                $rowcount ++;
+            }
+        }
         if ($rowcount == 0) {
             $datatable .= '<tr><td colspan="2">'.&mt('No format rules have been defined for usernames or IDs in this domain.').'</td></tr>';  
             $$rowtotal ++;
             $rowcount ++;
         }
     } elsif ($position eq 'middle') {
-        my @creators = ('author','course');
+        my @creators = ('author','course','selfcreate');
         my ($rules,$ruleorder) =
             &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'}})) {
@@ -1499,8 +1575,10 @@ sub print_usercreation {
         my $rownum = 0;
         foreach my $item (@creators) {
             $rownum ++;
-            if ($checked{$item} eq '') {
-                $checked{$item} = 'any';
+            if ($item ne 'selfcreate') {  
+                if ($checked{$item} eq '') {
+                    $checked{$item} = 'any';
+                }
             }
             my $css_class;
             if ($rownum%2) {
@@ -1511,20 +1589,33 @@ sub print_usercreation {
             $datatable .= '<tr'.$css_class.'>'.
                          '<td><span class="LC_nobreak">'.$lt{$item}.
                          '</span></td><td align="right">';
-            my @options = ('any');
-            if (ref($rules) eq 'HASH') {
-                if (keys(%{$rules}) > 0) {
-                    push(@options,('official','unofficial'));
+            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>';
             }
@@ -1587,6 +1678,7 @@ sub user_formats_row {
     my %text = (
                    'username' => 'new usernames',
                    'id'       => 'IDs',
+                   'email'    => 'self-created accounts (e-mail)',
                );
     my $css_class = $rowcount%2?' class="LC_odd_row"':'';
     $output = '<tr '.$css_class.'>'.
@@ -1637,13 +1729,17 @@ sub usercreation_types {
     my %lt = &Apache::lonlocal::texthash (
                     author     => 'When adding a co-author',
                     course     => 'When adding a user to a course',
+                    selfcreate => 'User creates own account', 
                     any        => 'Any',
                     official   => 'Institutional only ',
                     unofficial => 'Non-institutional only',
+                    email      => 'Email address',
+                    login      => 'Institutional Login',
+                    sso        => 'SSO', 
                     none       => 'None',
     );
     return %lt;
-} 
+}
 
 sub authtype_names {
     my %lt = &Apache::lonlocal::texthash(
@@ -1690,6 +1786,533 @@ sub print_usermodification {
     return $datatable;
 }
 
+sub print_defaults {
+    my ($dom,$rowtotal) = @_;
+    my @items = ('auth_def','auth_arg_def','lang_def','timezone_def');
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    my $titles = &defaults_titles();
+    my $rownum = 0;
+    my ($datatable,$css_class);
+    foreach my $item (@items) {
+        if ($rownum%2) {
+            $css_class = '';
+        } else {
+            $css_class = ' class="LC_odd_row" ';
+        }
+        $datatable .= '<tr'.$css_class.'>'.
+                  '<td><span class="LC_nobreak">'.$titles->{$item}.
+                  '</span></td><td class="LC_right_item">';
+        if ($item eq 'auth_def') {
+            my @authtypes = ('internal','krb4','krb5','localauth');
+            my %shortauth = (
+                             internal => 'int',
+                             krb4 => 'krb4',
+                             krb5 => 'krb5',
+                             localauth  => 'loc'
+                           );
+            my %authnames = &authtype_names();
+            foreach my $auth (@authtypes) {
+                my $checked = ' ';
+                if ($domdefaults{$item} eq $auth) {
+                    $checked = ' checked="checked" ';
+                }
+                $datatable .= '<label><input type="radio" name="'.$item.
+                              '" 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}.'" />';
+        }
+        $datatable .= '</td></tr>';
+        $rownum ++;
+    }
+    $$rowtotal += $rownum;
+    return $datatable;
+}
+
+sub defaults_titles {
+    my %titles = &Apache::lonlocal::texthash (
+                   'auth_def'      => 'Default authentication type',
+                   'auth_arg_def'  => 'Default authentication argument',
+                   'lang_def'      => 'Default language',
+                   'timezone_def'  => 'Default timezone',
+                 );
+    return (\%titles);
+}
+
+sub print_scantronformat {
+    my ($r,$dom,$confname,$settings,$rowtotal) = @_;
+    my $itemcount = 1;
+    my ($datatable,$css_class,$scantronurl,$is_custom,%error,%scantronurls);
+    my $switchserver = &check_switchserver($dom,$confname);
+    my %lt = &Apache::lonlocal::texthash (
+                default => 'Default scantron format file error',
+                custom  => 'Custom scantron format file error',
+             );
+    my %scantronfiles = (
+        default => 'default.tab',
+        custom => 'custom.tab',
+    );
+    foreach my $key (keys(%scantronfiles)) {
+        $scantronurls{$key} = '/res/'.$dom.'/'.$confname.'/scantron/'
+                              .$scantronfiles{$key};
+    }
+    my @defaultinfo = &Apache::lonnet::stat_file($scantronurls{'default'});
+    if ((!@defaultinfo) || ($defaultinfo[0] eq 'no_such_dir')) {
+        if (!$switchserver) {
+            my $servadm = $r->dir_config('lonAdmEMail');
+            my ($configuserok,$author_ok) = &config_check($dom,$confname,$servadm);
+            if ($configuserok eq 'ok') {
+                if ($author_ok eq 'ok') {
+                    my %legacyfile = (
+ default => $Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab', 
+ custom  => $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab', 
+                    );
+                    my %md5chk;
+                    foreach my $type (keys(%legacyfile)) {
+                        $md5chk{$type} = split(/ /,`md5sum $legacyfile{$type}`);
+                        chop($md5chk{$type});
+                    }
+                    if ($md5chk{'default'} ne $md5chk{'custom'}) {
+                        foreach my $type (keys(%legacyfile)) {
+                            ($scantronurls{$type},$error{$type}) = 
+                                &legacy_scantronformat($r,$dom,$confname,
+                                                 $type,$legacyfile{$type},
+                                                 $scantronurls{$type},
+                                                 $scantronfiles{$type});
+                        }
+                    } else {
+                        ($scantronurls{'default'},$error{'default'}) =
+                            &legacy_scantronformat($r,$dom,$confname,
+                                          'default',$legacyfile{'default'},
+                                          $scantronurls{'default'},
+                                          $scantronfiles{'default'});
+                    }
+                }
+            }
+        } else {
+            $error{'default'} = &mt("Unable to copy default scantron formatfile to domain's RES space: [_1]",$switchserver);
+        }
+    }
+    if (ref($settings) eq 'HASH') {
+        if ($settings->{'scantronformat'} eq "/res/$dom/$confname/scantron/custom.tab") {
+            my @info = &Apache::lonnet::stat_file($settings->{'scantronformat'});
+            if ((!@info) || ($info[0] eq 'no_such_dir')) {
+                $scantronurl = '';
+            } else {
+                $scantronurl = $settings->{'scantronformat'};
+            }
+            $is_custom = 1;
+        } else {
+            $scantronurl = $scantronurls{'default'};
+        }
+    } else {
+        $scantronurl = $scantronurls{'default'};
+    }
+    $css_class = $itemcount%2?' class="LC_odd_row"':'';
+    $datatable .= '<tr'.$css_class.'>';
+    if (!$is_custom) {
+        $datatable .= '<td>'.&mt('Default in use:').'<br />';
+        if ($scantronurl) {
+            $datatable .= '<a href="'.$scantronurl.'" target="_blank">'.
+                          &mt('Default scantron format file').'</a>';
+        } else {
+            $datatable = &mt('File unavailable for display');
+        }
+        $datatable .= '</td><td valign="bottom">'.&mt('Upload:').'<br />';
+    } else {
+        if (keys(%error) > 0) {
+            my $errorstr;
+            foreach my $key (sort(keys(%error))) {
+                $errorstr .= $lt{$key}.': '.$error{$key}.'<br />';
+            } 
+            $datatable .= '<td>'.$errorstr.'</td><td>';
+        } elsif ($scantronurl) {
+            $datatable .= '<td><a href="'.$scantronurl.'" target="_blank">'                          .&mt('Custom scantron format file').'</a>'
+                          .'<span class="LC_nobreak"><label>'
+                          .'<input type="checkbox" name="scantronformat_del"'
+                          .'" value="1" />'.&mt('Delete?').'</label></td>'
+                          .'<td>'.&mt('Replace:').'</span><br />';
+        }
+    }
+    if (keys(%error) == 0) {
+        if ($switchserver) {
+            $datatable .= &mt('Upload to library server: [_1]',$switchserver);
+        } else {
+            $datatable .='&nbsp;<input type="file" name="scantronformat" />';
+        }
+    }
+    $datatable .= '</td></tr>';
+    $$rowtotal ++;
+    return $datatable;
+}
+
+sub legacy_scantronformat {
+    my ($r,$dom,$confname,$file,$legacyfile,$newurl,$newfile) = @_;
+    my ($url,$error);
+    my @statinfo = &Apache::lonnet::stat_file($newurl);
+    if ((!@statinfo) || ($statinfo[0] eq 'no_such_dir')) {
+        (my $result,$url) =
+            &publishlogo($r,'copy',$legacyfile,$dom,$confname,'scantron',
+                         '','',$newfile);
+        if ($result ne 'ok') {
+            $error = &mt("An error occurred publishing the [_1] scantron format file in RES space. Error was: [_2].",$newfile,$result);
+        }
+    }
+    return ($url,$error);
+}
+
+sub print_coursecategories {
+    my ($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 $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]})) || ($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 .= '</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 .= '<td class="LC_right_item">'.$hdritem->{'header'}->[0]->{'col2'}.'</td>'
+                          .&initialize_categories($itemcount);
+        }
+        $$rowtotal += $itemcount;
+    }
+    return $datatable;
+}
+
+sub coursecategories_javascript {
+    my ($settings) = @_;
+    my ($output,$jstext,$cathash);
+    if (ref($settings) eq 'HASH') {
+        $cathash = $settings->{'cats'};
+    }
+    if (ref($cathash) eq 'HASH') {
+        my (@cats,@jsarray,%idx);
+        &Apache::loncommon::gather_categories($cathash,\@cats,\%idx,\@jsarray);
+        if (@jsarray > 0) {
+            $jstext = '    var categories = Array('.scalar(@jsarray).');'."\n";
+            for (my $i=0; $i<@jsarray; $i++) {
+                if (ref($jsarray[$i]) eq 'ARRAY') {
+                    my $catstr = join('","',@{$jsarray[$i]});
+                    $jstext .= '    categories['.$i.'] = Array("'.$catstr.'");'."\n";
+                }
+            }
+        }
+    } else {
+        $jstext  = '    var categories = Array(1);'."\n".
+                   '    categories[0] = Array("instcode_pos");'."\n"; 
+    }
+    $output = <<"ENDSCRIPT";
+<script type="text/javascript">
+function reorderCats(form,parent,item,idx) {
+    var changedVal;
+$jstext
+    var newpos = 'addcategory_pos';
+    var current = new Array;
+    if (parent == '') {
+        var has_instcode = 0;
+        var maxtop = categories[idx].length;
+        for (var j=0; j<maxtop; j++) {
+            if (categories[idx][j] == 'instcode::0') {
+                has_instcode == 1;
+            }
+        }
+        if (has_instcode == 0) {
+            categories[idx][maxtop] = 'instcode_pos';
+        }
+    } else {
+        newpos += '_'+parent;
+    }
+    var maxh = 1 + categories[idx].length;
+    var current = new Array;
+    var newitemVal = form.elements[newpos].options[form.elements[newpos].selectedIndex].value;
+    if (item == newpos) {
+        changedVal = newitemVal;
+    } else {
+        changedVal = form.elements[item].options[form.elements[item].selectedIndex].value;
+        current[newitemVal] = newpos;
+    }
+    for (var i=0; i<categories[idx].length; i++) {
+        var elementName = categories[idx][i];
+        if (elementName != item) {
+            if (form.elements[elementName]) {
+                var currVal = form.elements[elementName].options[form.elements[elementName].selectedIndex].value;
+                current[currVal] = elementName;
+            }
+        }
+    }
+    var oldVal;
+    for (var j=0; j<maxh; j++) {
+        if (current[j] == undefined) {
+            oldVal = j;
+        }
+    }
+    if (oldVal < changedVal) {
+        for (var k=oldVal+1; k<=changedVal ; k++) {
+           var elementName = current[k];
+           form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex - 1;
+        }
+    } else {
+        for (var k=changedVal; k<oldVal; k++) {
+            var elementName = current[k];
+            form.elements[elementName].selectedIndex = form.elements[elementName].selectedIndex + 1;
+        }
+    }
+    return;
+}
+</script>
+
+ENDSCRIPT
+    return $output;
+}
+
+sub initialize_categories {
+    my ($itemcount) = @_;
+    my $datatable;
+    my $css_class = $itemcount%2?' class="LC_odd_row"':'';
+    my $chgstr = ' onchange="javascript:reorderCats(this.form,'."'','instcode_pos','0'".');"';
+
+    $datatable = '<tr '.$css_class.'><td><span class="LC_nobreak">'
+                 .'<select name="instcode_pos"><option value="0" selected="selected">1</option>'
+                 .'<option value="1">2</option></select>&nbsp;'
+                 .&mt('Official courses (with institutional codes)')
+                 .'</span></td><td><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></tr>';
+    $itemcount ++;
+    $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>'
+                  .'<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>';
+    return $datatable;
+}
+
+sub build_category_rows {
+    my ($itemcount,$cats,$depth,$parent,$path,$idx) = @_;
+    my ($text,$name,$item,$chgstr);
+    if (ref($cats) eq 'ARRAY') {
+        my $maxdepth = scalar(@{$cats});
+        if (ref($cats->[$depth]) eq 'HASH') {
+            if (ref($cats->[$depth]{$parent}) eq 'ARRAY') {
+                my $numchildren = @{$cats->[$depth]{$parent}};
+                my $css_class = $itemcount%2?' class="LC_odd_row"':'';
+                $text .= '<td><table class="LC_datatable">';
+                my ($idxnum,$parent_name,$parent_item);
+                my $higher = $depth - 1;
+                if ($higher == 0) {
+                    $parent_name = &escape($parent).'::'.$higher;
+                } else {
+                    if (ref($path) eq 'ARRAY') {
+                        $parent_name = &escape($parent).':'.&escape($path->[-2]).':'.$higher;
+                    }
+                }
+                $parent_item = 'addcategory_pos_'.$parent_name;
+                for (my $j=0; $j<=$numchildren; $j++) {
+                    if ($j < $numchildren) {
+                        $name = $cats->[$depth]{$parent}[$j];
+                        $item = &escape($name).':'.&escape($parent).':'.$depth;
+                        $idxnum = $idx->{$item};
+                    } else {
+                        $name = $parent_name;
+                        $item = $parent_item;
+                    }
+                    $chgstr = ' onchange="javascript:reorderCats(this.form,'."'$parent_name','$item','$idxnum'".');"';
+                    $text .= '<tr '.$css_class.'><td><span class="LC_nobreak"><select name="'.$item.'"'.$chgstr.'>';
+                    for (my $i=0; $i<=$numchildren; $i++) {
+                        my $vpos = $i+1;
+                        my $selstr;
+                        if ($j == $i) {
+                            $selstr = ' selected="selected" ';
+                        }
+                        $text .= '<option value="'.$i.'"'.$selstr.'>'.$vpos.'</option>';
+                    }
+                    $text .= '</select>&nbsp;';
+                    if ($j < $numchildren) {
+                        my $deeper = $depth+1;
+                        $text .= $name.'&nbsp;'
+                                 .'<label><input type="checkbox" name="deletecategory" value="'
+                                 .$item.'" />'.&mt('Delete').'</label></span></td><td>';
+                        if(ref($path) eq 'ARRAY') {
+                            push(@{$path},$name);
+                            $text .= &build_category_rows($itemcount,$cats,$deeper,$name,$path,$idx);
+                            pop(@{$path});
+                        }
+                    } else {
+                        $text .= &mt('New:').'&nbsp;</span><input type="textbox" size="20" name="addcategory_name_';
+                        if ($j == $numchildren) {
+                            $text .= $name;
+                        } else {
+                            $text .= $item;
+                        }
+                        $text .= '" value="" />';
+                    }
+                    $text .= '</td></tr>';
+                }
+                $text .= '</table></td>';
+            } else {
+                my $higher = $depth-1;
+                if ($higher == 0) {
+                    $name = &escape($parent).'::'.$higher;
+                } else {
+                    if (ref($path) eq 'ARRAY') {
+                        $name = &escape($parent).':'.&escape($path->[-2]).':'.$higher;
+                    }
+                }
+                my $colspan;
+                if ($parent ne 'instcode') {
+                    $colspan = $maxdepth - $depth - 1;
+                    $text .= '<td colspan="'.$colspan.'">'.&mt('Add subcategory:').'<input type="textbox" size="20" name="subcat_'.$name.'" value="" /></td>';
+                }
+            }
+        }
+    }
+    return $text;
+}
+
 sub modifiable_userdata_row {
     my ($context,$role,$settings,$numinrow,$rowcount) = @_;
     my $rolename;
@@ -1807,25 +2430,6 @@ sub users_cansearch_row {
     return $output;
 }
 
-sub sorted_inst_types {
-    my ($dom) = @_;
-    my ($usertypes,$order) = &Apache::lonnet::retrieve_inst_usertypes($dom);
-    my $othertitle = &mt('All users');
-    my @types;
-    if (ref($order) eq 'ARRAY') {
-        @types = @{$order};
-    }
-    if (@types == 0) {
-        if (ref($usertypes) eq 'HASH') {
-            @types = sort(keys(%{$usertypes}));
-        }
-    }
-    if (keys(%{$usertypes}) > 0) {
-        $othertitle = &mt('Other users');
-    }
-    return ($othertitle,$usertypes,\@types);
-}
-
 sub sorted_searchtitles {
     my %searchtitles = &Apache::lonlocal::texthash(
                          'uname' => 'username',
@@ -1901,13 +2505,16 @@ sub modify_login {
     my ($resulttext,$errors,$colchgtext,%changes,%colchanges);
     my %title = ( coursecatalog => 'Display course catalog',
                   adminmail => 'Display administrator E-mail address',
+                  newuser => 'Link for visitors to create a user account',
                   loginheader => 'Log-in box header');
     my @offon = ('off','on');
     my %loginhash;
     ($errors,%colchanges) = &modify_colors($r,$dom,$confname,['login'],
                                            \%domconfig,\%loginhash);
-    $loginhash{login}{coursecatalog} = $env{'form.coursecatalog'};
-    $loginhash{login}{adminmail} = $env{'form.adminmail'};
+    my @toggles = ('coursecatalog','adminmail','newuser');
+    foreach my $item (@toggles) {
+        $loginhash{login}{$item} = $env{'form.'.$item};
+    }
     $loginhash{login}{loginheader} = $env{'form.loginheader'};
     if (ref($colchanges{'login'}) eq 'HASH') {  
         $colchgtext = &display_colorchgs($dom,\%colchanges,['login'],
@@ -1916,29 +2523,42 @@ sub modify_login {
     my $putresult = &Apache::lonnet::put_dom('configuration',\%loginhash,
                                              $dom);
     if ($putresult eq 'ok') {
-        if (($domconfig{'login'}{'coursecatalog'} eq '0') &&
-            ($env{'form.coursecatalog'} eq '1')) {
-            $changes{'coursecatalog'} = 1;
-        } elsif (($domconfig{'login'}{'coursecatalog'} eq '' ||
-                 $domconfig{'login'}{'coursecatalog'} eq '1') &&
-                 ($env{'form.coursecatalog'} eq '0')) {
-            $changes{'coursecatalog'} = 1;
-        }
-        if (($domconfig{'login'}{'adminmail'} eq '1') &&
-                ($env{'form.adminmail'} eq '0')) {
-            $changes{'adminmail'} = 1;
-        } elsif (($domconfig{'login'}{'adminmail'} eq '' ||
-                 $domconfig{'login'}{'adminmail'} eq '0') &&
-                 ($env{'form.adminmail'} eq '1')) {
-            $changes{'adminmail'} = 1;
-        }
-        if (($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')) {
-            $changes{'loginheader'} = 1;
+        my @toggles = ('coursecatalog','adminmail','newuser');
+        my %defaultchecked = (
+                    'coursecatalog' => 'on',
+                    'adminmail'     => 'off',
+                    'newuser'       => 'off',
+        );
+        if (ref($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 (keys(%changes) > 0 || $colchgtext) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
@@ -1971,6 +2591,7 @@ sub color_font_choices {
             img => "Header",
             bgs => "Background colors",
             links => "Link colors",
+            images => "Images",
             font => "Font color",
             pgbg => "Page",
             tabbg => "Header",
@@ -1986,6 +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 $putresult = &Apache::lonnet::put_dom('configuration',\%rolehash,
@@ -2012,7 +2638,7 @@ sub modify_rolecolors {
 sub modify_colors {
     my ($r,$dom,$confname,$roles,$domconfig,$confhash) = @_;
     my (%changes,%choices);
-    my @bgs = ('pgbg','mainbg','sidebg');
+    my @bgs;
     my @links = ('link','alink','vlink');
     my @logintext;
     my @images;
@@ -2027,23 +2653,17 @@ sub modify_colors {
         }
         if ($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) {
             $confhash->{$role}{$item} = $env{'form.'.$role.'_'.$item};
         }
-        my ($configuserok,$author_ok,$switchserver,%currroles);
-        my $uhome = &Apache::lonnet::homeserver($confname,$dom,1);
-        ($configuserok,%currroles) = &check_configuser($uhome,$dom,
-                                                       $confname,$servadm);
-        if ($configuserok eq 'ok') {
-            $switchserver = &check_switchserver($dom,$confname);
-            if ($switchserver eq '') {
-                $author_ok = &check_authorstatus($dom,$confname,%currroles);
-            }
-        }
+        my ($configuserok,$author_ok,$switchserver) = 
+            &config_check($dom,$confname,$servadm);
         my ($width,$height) = &thumb_dimensions();
         if (ref($domconfig->{$role}) ne 'HASH') {
             $domconfig->{$role} = {};
@@ -2075,11 +2695,11 @@ sub modify_colors {
                                 $error = &mt("Upload of [_1] image for $role page(s) failed because an error occurred publishing the file in RES space. Error was: [_2].",$choices{img},$result);
                             }
                         } else {
-                            $error = &mt("Upload of [_1] image for $role page(s) failed because an author role could not be assigned to a Domain Configuation user ([_2]) in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$author_ok);
+                            $error = &mt("Upload of [_1] image for $role page(s) failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$author_ok);
                         }
                     }
                 } else {
-                    $error = &mt("Upload of [_1] image for $role page(s) failed because a Domain Configuation user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$configuserok);
+                    $error = &mt("Upload of [_1] image for $role page(s) failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$choices{$img},$confname,$dom,$configuserok);
                 }
                 if ($error) {
                     &Apache::lonnet::logthis($error);
@@ -2178,6 +2798,21 @@ sub modify_colors {
     return ($errors,%changes);
 }
 
+sub config_check {
+    my ($dom,$confname,$servadm) = @_;
+    my ($configuserok,$author_ok,$switchserver,%currroles);
+    my $uhome = &Apache::lonnet::homeserver($confname,$dom,1);
+    ($configuserok,%currroles) = &check_configuser($uhome,$dom,
+                                                   $confname,$servadm);
+    if ($configuserok eq 'ok') {
+        $switchserver = &check_switchserver($dom,$confname);
+        if ($switchserver eq '') {
+            $author_ok = &check_authorstatus($dom,$confname,%currroles);
+        }
+    }
+    return ($configuserok,$author_ok,$switchserver);
+}
+
 sub default_change_checker {
     my ($role,$images,$links,$bgs,$logintext,$confhash,$changes) = @_;
     foreach my $item (@{$links}) {
@@ -2204,7 +2839,7 @@ sub default_change_checker {
     if ($confhash->{$role}{'font'}) {
         $changes->{$role}{'font'} = 1;
     }
-} 
+}
 
 sub display_colorchgs {
     my ($dom,$changes,$roles,$confhash) = @_;
@@ -2309,7 +2944,7 @@ sub check_authorstatus {
         my $end = 0;
         $author_ok = 
             &Apache::lonnet::assignrole($dom,$confname,'/'.$dom.'/',
-                                        'au',$end,$start);
+                                        'au',$end,$start,'','','domconfig');
     } else {
         $author_ok = 'ok';
     }
@@ -2317,7 +2952,7 @@ sub check_authorstatus {
 }
 
 sub publishlogo {
-    my ($r,$action,$formname,$dom,$confname,$subdir,$thumbwidth,$thumbheight) = @_;
+    my ($r,$action,$formname,$dom,$confname,$subdir,$thumbwidth,$thumbheight,$savefileas) = @_;
     my ($output,$fname,$logourl);
     if ($action eq 'upload') {
         $fname=$env{'form.'.$formname.'.filename'};
@@ -2325,6 +2960,9 @@ sub publishlogo {
     } else {
         ($fname) = ($formname =~ /([^\/]+)$/);
     }
+    if ($savefileas ne '') {
+        $fname = $savefileas;
+    }
     $fname=&Apache::lonnet::clean_filename($fname);
 # See if there is anything left
     unless ($fname) { return ('error: no uploaded file'); }
@@ -2352,7 +2990,7 @@ sub publishlogo {
         !defined(&Apache::loncommon::fileembstyle($1))) {
         $output = &mt('Unrecognized file extension ([_1]) - rename the file with a proper extension and re-upload.',$1);
     } elsif ($file=~/\.(\d+)\.(\w+)$/) {
-        $output = &mt('File name not allowed a rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
+        $output = &mt('File name not allowed - rename the file to remove the number immediately before the file extension([_1]) and re-upload.',$2);
     } elsif (-d "$filepath/$file") {
         $output = &mt('File name is a directory name - rename the file and re-upload');
     } else {
@@ -2548,7 +3186,7 @@ END
 sub modify_quotas {
     my ($dom,%domconfig) = @_;
     my ($resulttext,%changes);
-    my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     my %formhash;
     foreach my $key (keys(%env)) {
         if ($key =~ /^form\.quota_(.+)$/) {
@@ -2569,7 +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;
             }
         }
@@ -2683,7 +3325,7 @@ sub modify_autoupdate {
                    run => 'Auto-update:',
                    classlists => 'Updates to user information in classlists?'
                 );
-    my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     my %fieldtitles = &Apache::lonlocal::texthash (
                         id => 'Student/Employee ID',
                         permanentemail => 'E-mail address',
@@ -2812,7 +3454,7 @@ sub modify_directorysrch {
     my @cansearch = &Apache::loncommon::get_env_multiple('form.cansearch');
     my @searchby = &Apache::loncommon::get_env_multiple('form.searchby');
 
-    my ($othertitle,$usertypes,$types) = &sorted_inst_types($dom);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     if (keys(%{$usertypes}) == 0) {
         @cansearch = ('default');
     } else {
@@ -3078,30 +3720,96 @@ sub modify_contacts {
 sub modify_usercreation {
     my ($dom,%domconfig) = @_;
     my ($resulttext,%curr_usercreation,%changes,%authallowed,%cancreate);
+    my $warningmsg;
     if (ref($domconfig{'usercreation'}) eq 'HASH') {
         foreach my $key (keys(%{$domconfig{'usercreation'}})) {
             $curr_usercreation{$key} = $domconfig{'usercreation'}{$key};
         }
     }
-    my %title = &Apache::lonlocal::texthash (
-                   author => 'adding co-authors/assistant authors',
-                   course => 'adding users to a course',
-                );
     my @username_rule = &Apache::loncommon::get_env_multiple('form.username_rule');
     my @id_rule = &Apache::loncommon::get_env_multiple('form.id_rule');
-    my @contexts = ('author','course');
+    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 (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 $item (@contexts) {
-            if (grep(/^\Q$item\E$/,@{$curr_usercreation{'cancreate'}})) {
+            if (!grep(/^\Q$item\E$/,@{$curr_usercreation{'cancreate'}})) {
                 if ($cancreate{$item} ne 'any') {
                     push(@{$changes{'cancreate'}},$item);
                 }
@@ -3112,7 +3820,7 @@ sub modify_usercreation {
             }
         }
     } else {
-        foreach my $item ('author','course') {
+        foreach my $item (@contexts)  {
             push(@{$changes{'cancreate'}},$item);
         }
     }
@@ -3147,10 +3855,25 @@ sub modify_usercreation {
         push(@{$changes{'id_rule'}},@id_rule);
     }
 
-    my @contexts = ('author','course','domain');
+    if (ref($curr_usercreation{'email_rule'}) eq 'ARRAY') {
+        foreach my $type (@{$curr_usercreation{'email_rule'}}) {
+            if (!grep(/^\Q$type\E$/,@email_rule)) {
+                push(@{$changes{'email_rule'}},$type);
+            }
+        }
+        foreach my $type (@email_rule) {
+            if (!grep(/^\Q$type\E$/,@{$curr_usercreation{'email_rule'}})) {
+                push(@{$changes{'email_rule'}},$type);
+            }
+        }
+    } else {
+        push(@{$changes{'email_rule'}},@email_rule);
+    }
+
+    my @authen_contexts = ('author','course','domain');
     my @authtypes = ('int','krb4','krb5','loc');
     my %authhash;
-    foreach my $item (@contexts) {
+    foreach my $item (@authen_contexts) {
         my @authallowed =  &Apache::loncommon::get_env_multiple('form.'.$item.'_auth');
         foreach my $auth (@authtypes) {
             if (grep(/^\Q$auth\E$/,@authallowed)) {
@@ -3161,7 +3884,7 @@ sub modify_usercreation {
         }
     }
     if (ref($curr_usercreation{'authtypes'}) eq 'HASH') {
-        foreach my $item (@contexts) {
+        foreach my $item (@authen_contexts) {
             if (ref($curr_usercreation{'authtypes'}{$item}) eq 'HASH') {
                 foreach my $auth (@authtypes) {
                     if ($authhash{$item}{$auth} ne $curr_usercreation{'authtypes'}{$item}{$auth}) {
@@ -3172,7 +3895,7 @@ sub modify_usercreation {
             }
         }
     } else {
-        foreach my $item (@contexts) {
+        foreach my $item (@authen_contexts) {
             push(@{$changes{'authtypes'}},$item);
         }
     }
@@ -3182,27 +3905,46 @@ sub modify_usercreation {
                               cancreate     => \%cancreate,
                               username_rule => \@username_rule,
                               id_rule       => \@id_rule,
+                              email_rule    => \@email_rule,
                               authtypes     => \%authhash,
                             }
             );
 
     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) {
             $resulttext = &mt('Changes made:').'<ul>';
             if (ref($changes{'cancreate'}) eq 'ARRAY') {
                 my %lt = &usercreation_types();
                 foreach my $type (@{$changes{'cancreate'}}) {
-                    my $chgtext; 
-                    if ($cancreate{$type} eq 'none') {
-                        $chgtext = $lt{$type}.' '.&mt('creation of new users is not permitted, except by a Domain Coordinator.');
-                    } elsif ($cancreate{$type} eq 'any') {
-                        $chgtext = $lt{$type}.' '.&mt('creation of new users is permitted for both institutional and non-institutional usernames.'); 
-                    } elsif ($cancreate{$type} eq 'official') {
-                        $chgtext = $lt{$type}.' '.&mt('creation of new users is only permitted for institutional usernames.',$lt{$type});
-                    } elsif ($cancreate{$type} eq 'unofficial') {
-                        $chgtext = $lt{$type}.' '.&mt('creation of new users is only permitted for non-institutional usernames.',$lt{$type});
+                    my $chgtext =  $lt{$type}.', ';
+                    if ($type eq 'selfcreate') {
+                        if (@{$cancreate{$type}} == 0) {
+                            $chgtext .= &mt('creation of a new user account is not permitted.');
+                        } 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') {
+                            $chgtext .= &mt('creation of new users is not permitted, except by a Domain Coordinator.');
+                        } elsif ($cancreate{$type} eq 'any') {
+                            $chgtext .= &mt('creation of new users is permitted for both institutional and non-institutional usernames.');
+                        } elsif ($cancreate{$type} eq 'official') {
+                            $chgtext .= &mt('creation of new users is only permitted for institutional usernames.');
+                        } elsif ($cancreate{$type} eq 'unofficial') {
+                            $chgtext .= &mt('creation of new users is only permitted for non-institutional usernames.');
+                        }
                     }
                     $resulttext .= '<li>'.$chgtext.'</li>';
                 }
@@ -3239,6 +3981,23 @@ sub modify_usercreation {
                     $resulttext .= '<li>'.&mt('There are now no ID formats restricted to verified users in the institutional directory.').'</li>';
                 }
             }
+            if (ref($changes{'email_rule'}) eq 'ARRAY') {
+                my ($emailrules,$emailruleorder) =
+                    &Apache::lonnet::inst_userrules($dom,'email');
+                my $chgtext = '<ul>';
+                foreach my $type (@email_rule) {
+                    if (ref($emailrules->{$type}) eq 'HASH') {
+                        $chgtext .= '<li>'.$emailrules->{$type}{'name'}.'</li>';
+                    }
+                }
+                $chgtext .= '</ul>';
+                if (@email_rule > 0) {
+                    $resulttext .= '<li>'.&mt('Accounts may not be created by users self-enrolling with e-mail addresses of the following types: ').$chgtext.'</li>';
+                } else {
+                    $resulttext .= '<li>'.&mt('There are now no restrictions on e-mail addresses which may be used as a username when self-enrolling.').'</li>';
+                }
+            }
+
             my %authname = &authtype_names();
             my %context_title = &context_names();
             if (ref($changes{'authtypes'}) eq 'ARRAY') {
@@ -3251,7 +4010,11 @@ sub modify_usercreation {
                             push(@allowed,$authname{$auth});
                         }
                     }
-                    $chgtext .= join(', ',@allowed).'</li>';
+                    if (@allowed > 0) {
+                        $chgtext .= join(', ',@allowed).'</li>';
+                    } else {
+                        $chgtext .= &mt('none').'</li>';
+                    }
                 }
                 $chgtext .= '</ul>';
                 $resulttext .= '<li>'.&mt('Authentication types available for assignment to new users').'<br />'.$chgtext;
@@ -3265,6 +4028,9 @@ sub modify_usercreation {
         $resulttext = '<span class="LC_error">'.
             &mt('An error occurred: [_1]',$putresult).'</span>';
     }
+    if ($warningmsg ne '') {
+        $resulttext .= '<br /><span class="LC_warning">'.$warningmsg.'</span><br />';
+    }
     return $resulttext;
 }
 
@@ -3368,4 +4134,402 @@ sub modify_usermodification {
     return $resulttext;
 }
 
+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','timezone_def');
+    my @authtypes = ('internal','krb4','krb5','localauth');
+    foreach my $item (@items) {
+        $newvalues{$item} = $env{'form.'.$item};
+        if ($item eq 'auth_def') {
+            if ($newvalues{$item} ne '') {
+                if (!grep(/^\Q$newvalues{$item}\E$/,@authtypes)) {
+                    push(@errors,$item);
+                }
+            }
+        } elsif ($item eq 'lang_def') {
+            if ($newvalues{$item} ne '') {
+                if ($newvalues{$item} =~ /^(\w+)/) {
+                    my $langcode = $1;
+                    if (code2language($langcode) eq '') {
+                        push(@errors,$item);
+                    }
+                } else {
+                    push(@errors,$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};
+        } elsif ($domdefaults{$item} ne $newvalues{$item}) {
+            $changes{$item} = 1;
+        }
+    }
+    my %defaults_hash = (
+                         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();
+    my $putresult = &Apache::lonnet::put_dom('configuration',\%defaults_hash,
+                                             $dom);
+    if ($putresult eq 'ok') {
+        if (keys(%changes) > 0) {
+            $resulttext = &mt('Changes made:').'<ul>';
+            my $version = $r->dir_config('lonVersion');
+            my $mailmsgtext = "Changes made to domain settings in a LON-CAPA installation - domain: $dom (running version: $version) - dns_domain.tab needs to be updated with the following changes, to support legacy 2.4, 2.5 and 2.6 versions of LON-CAPA.\n\n";
+            foreach my $item (sort(keys(%changes))) {
+                my $value = $env{'form.'.$item};
+                if ($value eq '') {
+                    $value = &mt('none');
+                } elsif ($item eq 'auth_def') {
+                    my %authnames = &authtype_names();
+                    my %shortauth = (
+                             internal => 'int',
+                             krb4 => 'krb4',
+                             krb5 => 'krb5',
+                             localauth  => 'loc',
+                    );
+                    $value = $authnames{$shortauth{$value}};
+                }
+                $resulttext .= '<li>'.&mt('[_1] set to "[_2]"',$title->{$item},$value).'</li>';
+                $mailmsgtext .= "$title->{$item} set to $value\n";  
+            }
+            $resulttext .= '</ul>';
+            $mailmsgtext .= "\n";
+            my $cachetime = 24*60*60;
+            &Apache::lonnet::do_cache_new('domdefaults',$dom,
+                                          $defaults_hash{'defaults'},$cachetime);
+            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/timezone settings');
+        }
+    } else {
+        $resulttext = '<span class="LC_error">'.
+            &mt('An error occurred: [_1]',$putresult).'</span>';
+    }
+    if (@errors > 0) {
+        $resulttext .= '<br />'.&mt('The following were left unchanged because the values entered were invalid:');
+        foreach my $item (@errors) {
+            $resulttext .= ' "'.$title->{$item}.'",';
+        }
+        $resulttext =~ s/,$//;
+    }
+    return $resulttext;
+}
+
+sub modify_scantron {
+    my ($r,$dom,$confname,%domconfig) = @_;
+    my ($resulttext,%confhash,%changes,$errors);
+    my $custom = 'custom.tab';
+    my $default = 'default.tab';
+    my $servadm = $r->dir_config('lonAdmEMail');
+    my ($configuserok,$author_ok,$switchserver) = 
+        &config_check($dom,$confname,$servadm);
+    if ($env{'form.scantronformat.filename'} ne '') {
+        my $error;
+        if ($configuserok eq 'ok') {
+            if ($switchserver) {
+                $error = &mt("Upload of scantron format file is not permitted to this server: [_1]",$switchserver);
+            } else {
+                if ($author_ok eq 'ok') {
+                    my ($result,$scantronurl) =
+                        &publishlogo($r,'upload','scantronformat',$dom,
+                                     $confname,'scantron','','',$custom);
+                    if ($result eq 'ok') {
+                        $confhash{'scantron'}{'scantronformat'} = $scantronurl;
+                        $changes{'scantronformat'} = 1;
+                    } else {
+                        $error = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$custom,$result);
+                    }
+                } else {
+                    $error = &mt("Upload of [_1] failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$custom,$confname,$dom,$author_ok);
+                }
+            }
+        } else {
+            $error = &mt("Upload of [_1] failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$custom,$confname,$dom,$configuserok);
+        }
+        if ($error) {
+            &Apache::lonnet::logthis($error);
+            $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+        }
+    }
+    if (ref($domconfig{'scantron'}) eq 'HASH') {
+        if ($domconfig{'scantron'}{'scantronformat'} ne '') {
+            if ($env{'form.scantronformat_del'}) {
+                $confhash{'scantron'}{'scantronformat'} = '';
+                $changes{'scantronformat'} = 1;
+            }
+        }
+    }
+    if (keys(%confhash) > 0) {
+        my $putresult = &Apache::lonnet::put_dom('configuration',\%confhash,
+                                                 $dom);
+        if ($putresult eq 'ok') {
+            if (keys(%changes) > 0) {
+                if (ref($confhash{'scantron'}) eq 'HASH') {
+                    $resulttext = &mt('Changes made:').'<ul>';
+                    if ($confhash{'scantron'}{'scantronformat'} eq '') {
+                        $resulttext .= '<li>'.&mt('[_1] scantron format file removed; [_2] file will be used for courses in this domain.',$custom,$default).'</li>';
+                    } else {
+                        $resulttext .= '<li>'.&mt('Custom scantron format file ([_1]) uploaded for use with courses in this domain.',$custom).'</li>';
+                    }
+                    $resulttext .= '</ul>';
+                } else {
+                    $resulttext = &mt('Changes made to scantron format file.');
+                }
+                $resulttext .= '</ul>';
+                &Apache::loncommon::devalidate_domconfig_cache($dom);
+            } else {
+                $resulttext = &mt('No changes made to scantron format file');
+            }
+        } else {
+            $resulttext = '<span class="LC_error">'.
+                &mt('An error occurred: [_1]',$putresult).'</span>';
+        }
+    } else {
+        $resulttext = &mt('No changes made to scantron format file'); 
+    }
+    if ($errors) {
+        $resulttext .= &mt('The following errors occurred: ').'<ul>'.
+                       $errors.'</ul>';
+    }
+    return $resulttext;
+}
+
+sub modify_coursecategories {
+    my ($dom,%domconfig) = @_;
+    my ($resulttext,%deletions,%reorderings,%needreordering,%adds,%changes,$errors,
+        $cathash);
+    my @deletecategory = &Apache::loncommon::get_env_multiple('form.deletecategory');
+    if (ref($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($cathash) eq 'HASH') {
+        if (@deletecategory > 0) {
+            #FIXME Need to remove category from all courses using a deleted category 
+            &Apache::loncommon::extract_categories($cathash,\@predelcats,\@predeltrails,\%predelallitems);
+            foreach my $item (@deletecategory) {
+                if ($domconfig{'coursecategories'}{'cats'}{$item} ne '') {
+                    delete($domconfig{'coursecategories'}{'cats'}{$item});
+                    $deletions{$item} = 1;
+                    &recurse_cat_deletes($item,$cathash,\%deletions);
+                }
+            }
+        }
+        foreach my $item (keys(%{$cathash})) {
+            my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$item);
+            if ($cathash->{$item} ne $env{'form.'.$item}) {
+                $reorderings{$item} = 1;
+                $domconfig{'coursecategories'}{'cats'}{$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;
+                $domconfig{'coursecategories'}{'cats'}{$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;
+                $domconfig{'coursecategories'}{'cats'}{$newitem} = 0;
+                $adds{$newitem} = 1;
+            }
+        }
+    }
+    if ($env{'form.instcode'} eq '1') {
+        if (ref($cathash) eq 'HASH') {
+            my $newitem = 'instcode::0';
+            if ($cathash->{$newitem} eq '') {  
+                $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
+                $adds{$newitem} = 1;
+            }
+        } else {
+            my $newitem = 'instcode::0';
+            $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.instcode_pos'};
+            $adds{$newitem} = 1;
+        }
+    }
+    if ($env{'form.addcategory_name'} ne '') {
+        my $newitem = &escape($env{'form.addcategory_name'}).'::0';
+        $domconfig{'coursecategories'}{'cats'}{$newitem} = $env{'form.addcategory_pos'};
+        $adds{$newitem} = 1;
+    }
+    my $putresult;
+    if ((keys(%deletions) > 0) || (keys(%reorderings) > 0) || (keys(%adds) > 0)) {
+        if (keys(%deletions) > 0) {
+            foreach my $key (keys(%deletions)) {
+                if ($predelallitems{$key} ne '') {
+                    $sort_by_deltrail{$predelallitems{$key}} = $predeltrails[$predelallitems{$key}];
+                }
+            }
+        }
+        my (@chkcats,@chktrails,%chkallitems);
+        &Apache::loncommon::extract_categories($domconfig{'coursecategories'}{'cats'},\@chkcats,\@chktrails,\%chkallitems);
+        if (ref($chkcats[0]) eq 'ARRAY') {
+            my $depth = 0;
+            my $chg = 0;
+            for (my $i=0; $i<@{$chkcats[0]}; $i++) {
+                my $name = $chkcats[0][$i];
+                my $item;
+                if ($name eq '') {
+                    $chg ++;
+                } else {
+                    $item = &escape($name).'::0';
+                    if ($chg) {
+                        $domconfig{'coursecategories'}{'cats'}{$item} -= $chg;
+                    }
+                    $depth ++; 
+                    &recurse_check(\@chkcats,$domconfig{'coursecategories'}{'cats'},$depth,$name);
+                    $depth --;
+                }
+            }
+        }
+    }
+    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)',
+                        );
+            $resulttext = &mt('Changes made:').'<ul>';
+            if ($changes{'togglecats'}) {
+                $resulttext .= '<li>'.&mt("$title{'togglecats'} $level{$env{'form.togglecats'}}").'</li>'; 
+            }
+            if ($changes{'categorize'}) {
+                $resulttext .= '<li>'.&mt("$title{'categorize'} $level{$env{'form.categorize'}}").'</li>';
+            }
+            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>';
+                }
+                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>';
+        } else {
+            $resulttext = '<span class="LC_error">'.
+                          &mt('An error occurred: [_1]',$putresult).'</span>';
+        }
+    } else {
+        $resulttext = &mt('No changes made to course categories');
+    }
+    return $resulttext;
+}
+
+sub recurse_check {
+    my ($chkcats,$categories,$depth,$name) = @_;
+    if (ref($chkcats->[$depth]{$name}) eq 'ARRAY') {
+        my $chg = 0;
+        for (my $j=0; $j<@{$chkcats->[$depth]{$name}}; $j++) {
+            my $category = $chkcats->[$depth]{$name}[$j];
+            my $item;
+            if ($category eq '') {
+                $chg ++;
+            } else {
+                my $deeper = $depth + 1;
+                $item = &escape($category).':'.&escape($name).':'.$depth;
+                if ($chg) {
+                    $categories->{$item} -= $chg;
+                }
+                &recurse_check($chkcats,$categories,$deeper,$category);
+                $deeper --;
+            }
+        }
+    }
+    return;
+}
+
+sub recurse_cat_deletes {
+    my ($item,$coursecategories,$deletions) = @_;
+    my ($deleted,$container,$depth) = map { &unescape($_); } split(/:/,$item);
+    my $subdepth = $depth + 1;
+    if (ref($coursecategories) eq 'HASH') {
+        foreach my $subitem (keys(%{$coursecategories})) {
+            my ($child,$parent,$itemdepth) = map { &unescape($_); } split(/:/,$subitem);
+            if (($parent eq $deleted) && ($itemdepth == $subdepth)) {
+                delete($coursecategories->{$subitem});
+                $deletions->{$subitem} = 1;
+                &recurse_cat_deletes($subitem,$coursecategories,$deletions);
+            }  
+        }
+    }
+    return;
+}
+
 1;