--- loncom/interface/domainprefs.pm	2013/09/29 00:49:28	1.209
+++ loncom/interface/domainprefs.pm	2014/03/29 20:25:28	1.230
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.209 2013/09/29 00:49:28 raeburn Exp $
+# $Id: domainprefs.pm,v 1.230 2014/03/29 20:25:28 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -86,7 +86,7 @@ $dom,$settings,$rowtotal,$action.
 
 $dom is the domain, $settings is a reference to a hash of current settings for
 the current context, $rowtotal is a reference to the scalar used to record the 
-number of rows displayed on the page, and $action is the context (quotas,  
+number of rows displayed on the page, and $action is the context (quotas, 
 requestcourses or requestauthor).
 
 The print_quotas routine was orginally created to display/store information
@@ -95,7 +95,7 @@ institutional affiliation in the domain
 but is now also used to manage availability of user tools: 
 i.e., blogs, aboutme page, and portfolios, and the course request tool,
 used by course owners to request creation of a course, and to display/store
-default quota sizes for authoring spaces.
+default quota sizes for Authoring Spaces.
 
 Outputs: 1
 
@@ -103,8 +103,8 @@ $datatable  - HTML containing form eleme
 
 In the case of course requests, radio buttons are displayed for each institutional
 affiliate type (and also default, and _LC_adv) for each of the course types 
-(official, unofficial and community).  In each case the radio buttons allow the 
-selection of one of four values:
+(official, unofficial, community, and textbook).  In each case the radio buttons 
+allow the selection of one of four values:
 
 0, approval, validate, autolimit=N (where N is blank, or a positive integer).
 which have the following effects:
@@ -216,7 +216,7 @@ sub handler {
                 'requestauthor'],$dom);
     my @prefs_order = ('rolecolors','login','defaults','quotas','autoenroll',
                        'autoupdate','autocreate','directorysrch','contacts',
-                       'usercreation','usermodification','scantron',
+                       'usercreation','selfcreation','usermodification','scantron',
                        'requestcourses','requestauthor','coursecategories',
                        'serverstatuses','helpsettings',
                        'coursedefaults','usersessions');
@@ -239,6 +239,8 @@ sub handler {
                                  col2 => '',},
                                 {col1 => 'Administrator Settings',
                                  col2 => '',}],
+                      print => \&print_rolecolors,
+                      modify => \&modify_rolecolors,
                     },
         'login' =>
                     { text => 'Log-in page options',
@@ -247,25 +249,33 @@ sub handler {
                                   col2 => '',},
                                  {col1 => 'Log-in Help',
                                   col2 => 'Value'}],
+                      print => \&print_login,
+                      modify => \&modify_login,
                     },
         'defaults' => 
                     { text => 'Default authentication/language/timezone/portal',
                       help => 'Domain_Configuration_LangTZAuth',
                       header => [{col1 => 'Setting',
                                   col2 => 'Value'}],
+                      print => \&print_defaults,
+                      modify => \&modify_defaults,
                     },
         'quotas' => 
                     { text => 'Blogs, personal web pages, webDAV/quotas, portfolios',
                       help => 'Domain_Configuration_Quotas',
                       header => [{col1 => 'User affiliation',
                                   col2 => 'Available tools',
-                                  col3 => 'Quotas, Mb; (Authoring requires role)',}],
+                                  col3 => 'Quotas, MB; (Authoring requires role)',}],
+                      print => \&print_quotas,
+                      modify => \&modify_quotas,
                     },
         'autoenroll' =>
                    { text => 'Auto-enrollment settings',
                      help => 'Domain_Configuration_Auto_Enrollment',
                      header => [{col1 => 'Configuration setting',
                                  col2 => 'Value(s)'}],
+                     print => \&print_autoenroll,
+                     modify => \&modify_autoenroll,
                    },
         'autoupdate' => 
                    { text => 'Auto-update settings',
@@ -275,27 +285,34 @@ sub handler {
                                 {col1 => 'Setting',
                                  col2 => 'Affiliation'},
                                 {col1 => 'User population',
-                                 col2 => 'Updateable user data'}],
+                                 col2 => 'Updatable user data'}],
+                     print => \&print_autoupdate,
+                     modify => \&modify_autoupdate,
                   },
         'autocreate' => 
                   { text => 'Auto-course creation settings',
                      help => 'Domain_Configuration_Auto_Creation',
                      header => [{col1 => 'Configuration Setting',
                                  col2 => 'Value',}],
+                     print => \&print_autocreate,
+                     modify => \&modify_autocreate,
                   },
         'directorysrch' => 
                   { text => 'Institutional directory searches',
                     help => 'Domain_Configuration_InstDirectory_Search',
                     header => [{col1 => 'Setting',
                                 col2 => 'Value',}],
+                    print => \&print_directorysrch,
+                    modify => \&modify_directorysrch,
                   },
         'contacts' =>
                   { text => 'Contact Information',
                     help => 'Domain_Configuration_Contact_Info',
                     header => [{col1 => 'Setting',
                                 col2 => 'Value',}],
+                    print => \&print_contacts,
+                    modify => \&modify_contacts,
                   },
-
         'usercreation' => 
                   { text => 'User creation',
                     help => 'Domain_Configuration_User_Creation',
@@ -305,16 +322,30 @@ sub handler {
                                 col2 => 'Usernames which may be created',},
                                {col1 => 'Context',
                                 col2 => 'Assignable authentication types'}],
+                    print => \&print_usercreation,
+                    modify => \&modify_usercreation,
+                  },
+        'selfcreation' => 
+                  { text => 'Users self-creating accounts',
+                    help => 'Domain_Configuration_Self_Creation', 
+                    header => [{col1 => 'Self-creation with institutional username',
+                                col2 => 'Enabled?'},
+                               {col1 => 'Institutional user type (login/SSO self-creation)',
+                                col2 => 'Information user can enter'},
+                               {col1 => 'Self-creation with e-mail as username',
+                                col2 => 'Settings'}],
+                    print => \&print_selfcreation,
+                    modify => \&modify_selfcreation,
                   },
         'usermodification' =>
                   { text => 'User modification',
                     help => 'Domain_Configuration_User_Modification',
                     header => [{col1 => 'Target user has role',
-                                col2 => 'User information updateable in author context'},
+                                col2 => 'User information updatable in author context'},
                                {col1 => 'Target user has role',
-                                col2 => 'User information updateable in course context'},
-                               {col1 => "Status of user",
-                                col2 => 'Information settable when self-creating account (if directory data blank)'}],
+                                col2 => 'User information updatable in course context'}],
+                    print => \&print_usermodification,
+                    modify => \&modify_usermodification,
                   },
         'scantron' =>
                   { text => 'Bubblesheet format file',
@@ -322,6 +353,8 @@ sub handler {
                     header => [ {col1 => 'Item',
                                  col2 => '',
                               }],
+                    print => \&print_scantron,
+                    modify => \&modify_scantron,
                   },
         'requestcourses' => 
                  {text => 'Request creation of courses',
@@ -329,15 +362,21 @@ sub handler {
                   header => [{col1 => 'User affiliation',
                               col2 => 'Availability/Processing of requests',},
                              {col1 => 'Setting',
-                              col2 => 'Value'}],
+                              col2 => 'Value'},
+                             {col1 => 'Available textbooks',
+                              col2 => ''}],
+                  print => \&print_quotas,
+                  modify => \&modify_quotas,
                  },
         'requestauthor' =>
-                 {text => 'Request authoring space',
+                 {text => 'Request Authoring Space',
                   help => 'Domain_Configuration_Request_Author',
                   header => [{col1 => 'User affiliation',
                               col2 => 'Availability/Processing of requests',},
                              {col1 => 'Setting',
                               col2 => 'Value'}],
+                  print => \&print_quotas,
+                  modify => \&modify_quotas,
                  },
         'coursecategories' =>
                   { text => 'Cataloging of courses/communities',
@@ -347,6 +386,8 @@ sub handler {
                                {col1 => 'Categories',
                                 col2 => '',
                                }],
+                    print => \&print_coursecategories,
+                    modify => \&modify_coursecategories,
                   },
         'serverstatuses' =>
                  {text   => 'Access to server status pages',
@@ -355,12 +396,16 @@ sub handler {
                               col2 => 'Other named users',
                               col3 => 'Specific IPs',
                             }],
+                  print => \&print_serverstatuses,
+                  modify => \&modify_serverstatuses,
                  },
         'helpsettings' =>
                  {text   => 'Help page settings',
                   help   => 'Domain_Configuration_Help_Settings',
                   header => [{col1 => 'Help Settings (logged-in users)',
                               col2 => 'Value'}],
+                  print  => \&print_helpsettings,
+                  modify => \&modify_helpsettings,
                  },
         'coursedefaults' => 
                  {text => 'Course/Community defaults',
@@ -369,12 +414,16 @@ sub handler {
                               col2 => 'Value',},
                              {col1 => 'Defaults which can be overridden for each course by a DC',
                               col2 => 'Value',},],
+                  print => \&print_coursedefaults,
+                  modify => \&modify_coursedefaults,
                  },
         'privacy' => 
                  {text   => 'User Privacy',
                   help   => 'Domain_Configuration_User_Privacy',
                   header => [{col1 => 'Setting',
                               col2 => 'Value',}],
+                  print => \&print_privacy,
+                  modify => \&modify_privacy,
                  },
         'usersessions' =>
                  {text  => 'User session hosting/offloading',
@@ -385,6 +434,8 @@ sub handler {
                               col2 => 'Rules'},
                              {col1 => "Hosting domain's own users elsewhere",
                               col2 => 'Rules'}],
+                  print => \&print_usersessions,
+                  modify => \&modify_usersessions,
                  },
          'loadbalancing' =>
                  {text  => 'Dedicated Load Balancer(s)',
@@ -394,6 +445,8 @@ sub handler {
                               col3 => 'User affiliation',
                               col4 => 'Overrides'},
                             ],
+                  print => \&print_loadbalancing,
+                  modify => \&modify_loadbalancing,
                  },
     );
     if (keys(%servers) > 1) {
@@ -405,6 +458,8 @@ sub handler {
                                         col2 => ''},
                                        {col1 => 'Log-in Help',
                                         col2 => 'Value'}],
+                            print => \&print_login,
+                            modify => \&modify_login,
                            };
     }
 
@@ -416,10 +471,11 @@ sub handler {
     my $confname = $dom.'-domainconfig';
 
     if ($phase eq 'process') {
-        if (&Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,
-                                                     \%prefs,\%domconfig,$confname,\@roles) eq 'update') {
+        my $result = &Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,
+                                                              \%prefs,\%domconfig,$confname,\@roles);
+        if ((ref($result) eq 'HASH') && (keys(%{$result}))) {
             $r->rflush();
-            &devalidate_remote_domconfs($dom);
+            &devalidate_remote_domconfs($dom,$result);
         }
     } elsif ($phase eq 'display') {
         my $js = &recaptcha_js().
@@ -433,6 +489,16 @@ sub handler {
                    &common_domprefs_js().
                    &Apache::loncommon::javascript_array_indexof();
         }
+        if (grep(/^requestcourses$/,@actions)) {
+            my $javascript_validations;
+            my $coursebrowserjs=&Apache::loncommon::coursebrowser_javascript($env{'request.role.domain'}); 
+            $js .= <<END;
+<script type="text/javascript">
+$javascript_validations
+</script>
+$coursebrowserjs
+END
+        }
         &Apache::lonconfigsettings::display_settings($r,$dom,$phase,$context,\@prefs_order,\%prefs,\%domconfig,$confname,$js);
     } else {
 # check if domconfig user exists for the domain.
@@ -442,7 +508,7 @@ sub handler {
         unless ($configuserok eq 'ok') {
             &Apache::lonconfigsettings::print_header($r,$phase,$context);
             $r->print(&mt('The domain configuration user "[_1]" has yet to be created.',
-                           $confname).
+                          $confname).
                       '<br />'
             );
             if ($switchserver) {
@@ -514,7 +580,7 @@ sub process_changes {
         $output = &modify_rolecolors($r,$dom,$confname,$roles,
                                      $lastactref,%domconfig);
     } elsif ($action eq 'quotas') {
-        $output = &modify_quotas($dom,$action,%domconfig);
+        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
     } elsif ($action eq 'autoenroll') {
         $output = &modify_autoenroll($dom,$lastactref,%domconfig);
     } elsif ($action eq 'autoupdate') {
@@ -525,12 +591,14 @@ sub process_changes {
         $output = &modify_directorysrch($dom,%domconfig);
     } elsif ($action eq 'usercreation') {
         $output = &modify_usercreation($dom,%domconfig);
+    } elsif ($action eq 'selfcreation') {
+        $output = &modify_selfcreation($dom,%domconfig);
     } elsif ($action eq 'usermodification') {
         $output = &modify_usermodification($dom,%domconfig);
     } elsif ($action eq 'contacts') {
         $output = &modify_contacts($dom,$lastactref,%domconfig);
     } elsif ($action eq 'defaults') {
-        $output = &modify_defaults($dom,$r,%domconfig);
+        $output = &modify_defaults($dom,$lastactref,%domconfig);
     } elsif ($action eq 'scantron') {
         $output = &modify_scantron($r,$dom,$confname,$lastactref,%domconfig);
     } elsif ($action eq 'coursecategories') {
@@ -538,15 +606,15 @@ sub process_changes {
     } elsif ($action eq 'serverstatuses') {
         $output = &modify_serverstatuses($dom,%domconfig);
     } elsif ($action eq 'requestcourses') {
-        $output = &modify_quotas($dom,$action,%domconfig);
+        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
     } elsif ($action eq 'requestauthor') {
-        $output = &modify_quotas($dom,$action,%domconfig);
+        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
     } elsif ($action eq 'helpsettings') {
         $output = &modify_helpsettings($r,$dom,$confname,%domconfig);
     } elsif ($action eq 'coursedefaults') {
-        $output = &modify_coursedefaults($dom,%domconfig);
+        $output = &modify_coursedefaults($dom,$lastactref,%domconfig);
     } elsif ($action eq 'usersessions') {
-        $output = &modify_usersessions($dom,%domconfig);
+        $output = &modify_usersessions($dom,$lastactref,%domconfig);
     } elsif ($action eq 'loadbalancing') {
         $output = &modify_loadbalancing($dom,%domconfig);
     }
@@ -575,7 +643,7 @@ sub print_config_box {
     if ($numheaders > 1) {
         my $colspan = '';
         my $rightcolspan = '';
-        if (($action eq 'rolecolors') || ($action eq 'coursecategories') || 
+        if (($action eq 'rolecolors') || ($action eq 'coursecategories') ||
             (($action eq 'login') && ($numheaders < 3))) {
             $colspan = ' colspan="2"';
         }
@@ -591,14 +659,12 @@ sub print_config_box {
               <td class="LC_right_item"'.$rightcolspan.'>'.&mt($item->{'header'}->[0]->{'col2'}).'</td>
              </tr>';
         $rowtotal ++;
-        if ($action eq 'autoupdate') {
-            $output .= &print_autoupdate('top',$dom,$settings,\$rowtotal);
-        } elsif ($action eq 'usercreation') {
-            $output .= &print_usercreation('top',$dom,$settings,\$rowtotal);
-        } elsif ($action eq 'usermodification') {
-            $output .= &print_usermodification('top',$dom,$settings,\$rowtotal);
+        if (($action eq 'autoupdate') || ($action eq 'usercreation') || ($action eq 'selfcreation') ||
+            ($action eq 'usermodification') || ($action eq 'coursedefaults') ||
+            ($action eq 'selfenrollment') || ($action eq 'usersessions')) {
+            $output .= $item->{'print'}->('top',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'coursecategories') {
-            $output .= &print_coursecategories('top',$dom,$item,$settings,\$rowtotal);
+            $output .= $item->{'print'}->('top',$dom,$item,$settings,\$rowtotal);
         } elsif ($action eq 'login') {
             if ($numheaders == 3) {
                 $colspan = ' colspan="2"';
@@ -606,16 +672,10 @@ sub print_config_box {
             } else {
                 $output .= &print_login('page',$dom,$confname,$phase,$settings,\$rowtotal);
             }
-        } elsif ($action eq 'requestcourses') {
-            $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
-        } elsif ($action eq 'requestauthor') {
+        } elsif (($action eq 'requestcourses') || ($action eq 'requestauthor')) {
             $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
-        } elsif ($action eq 'usersessions') {
-            $output .= &print_usersessions('top',$dom,$settings,\$rowtotal); 
         } elsif ($action eq 'rolecolors') {
             $output .= &print_rolecolors($phase,'student',$dom,$confname,$settings,\$rowtotal);
-        } elsif ($action eq 'coursedefaults') {
-            $output .= &print_coursedefaults('top',$dom,$settings,\$rowtotal);
         }
         $output .= '
            </table>
@@ -625,26 +685,14 @@ sub print_config_box {
            <td>
             <table class="LC_nested">
              <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[1]->{'col1'}).'</td>';
-        $output .= '
+              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[1]->{'col1'}).'</td>
               <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[1]->{'col2'}).'</td>
              </tr>';
             $rowtotal ++;
-        if ($action eq 'autoupdate') {
-            $output .= &print_autoupdate('middle',$dom,$settings,\$rowtotal).'
-           </table>
-          </td>
-         </tr>
-         <tr>
-           <td>
-            <table class="LC_nested">
-             <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
-            &print_autoupdate('bottom',$dom,$settings,\$rowtotal);
-            $rowtotal ++;
-        } elsif ($action eq 'usercreation') {
-            $output .= &print_usercreation('middle',$dom,$settings,\$rowtotal).'
+        if (($action eq 'autoupdate') || ($action eq 'usercreation') ||
+            ($action eq 'selfcreation') || ($action eq 'selfenrollment') ||
+            ($action eq 'usersessions')) {
+            $output .= $item->{'print'}->('middle',$dom,$settings,\$rowtotal).'
            </table>
           </td>
          </tr>
@@ -653,22 +701,12 @@ sub print_config_box {
             <table class="LC_nested">
              <tr class="LC_info_row">
               <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>             </tr>'.
-            &print_usercreation('bottom',$dom,$settings,\$rowtotal);
-            $rowtotal ++;
-        } elsif ($action eq 'usermodification') {
-            $output .= &print_usermodification('middle',$dom,$settings,\$rowtotal).'
-           </table>
-          </td>
-         </tr>
-         <tr>
-           <td>
-            <table class="LC_nested">
-             <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
-                       &print_usermodification('bottom',$dom,$settings,\$rowtotal);
+              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>
+             </tr>'."\n".
+            $item->{'print'}->('bottom',$dom,$settings,\$rowtotal);
             $rowtotal ++;
+        } elsif (($action eq 'usermodification') || ($action eq 'coursedefaults')) {
+            $output .= $item->{'print'}->('bottom',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'coursecategories') {
             $output .= &print_coursecategories('bottom',$dom,$item,$settings,\$rowtotal);
         } elsif ($action eq 'login') {
@@ -682,18 +720,15 @@ sub print_config_box {
             <table class="LC_nested">
              <tr class="LC_info_row">
               <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
+              <td class="LC_right_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col2'}).'</td></tr>'.
                        &print_login('help',$dom,$confname,$phase,$settings,\$rowtotal);
                 $rowtotal ++;
             } else {
                 $output .= &print_login('help',$dom,$confname,$phase,$settings,\$rowtotal);
             }
         } elsif ($action eq 'requestcourses') {
-            $output .= &print_requestmail($dom,$action,$settings,\$rowtotal);
-        } elsif ($action eq 'requestauthor') {
-            $output .= &print_requestmail($dom,$action,$settings,\$rowtotal);
-        } elsif ($action eq 'usersessions') {
-            $output .= &print_usersessions('middle',$dom,$settings,\$rowtotal).'
+            $output .= &print_requestmail($dom,$action,$settings,\$rowtotal).
+                       &print_studentcode($settings,\$rowtotal).'
            </table>
           </td>
          </tr>
@@ -702,11 +737,10 @@ sub print_config_box {
             <table class="LC_nested">
              <tr class="LC_info_row">
               <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
-                       &print_usersessions('bottom',$dom,$settings,\$rowtotal);
-            $rowtotal ++;
-        } elsif ($action eq 'coursedefaults') {
-            $output .= &print_coursedefaults('bottom',$dom,$settings,\$rowtotal);
+              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td> </tr>'.
+                       &print_textbookcourses($dom,$settings,\$rowtotal);
+        } elsif ($action eq 'requestauthor') {
+            $output .= &print_requestmail($dom,$action,$settings,\$rowtotal);
         } elsif ($action eq 'rolecolors') {
             $output .= &print_rolecolors($phase,'coordinator',$dom,$confname,$settings,\$rowtotal).'
            </table>
@@ -785,24 +819,14 @@ sub print_config_box {
         $rowtotal ++;
         if ($action eq 'quotas') {
             $output .= &print_quotas($dom,$settings,\$rowtotal,$action);
-        } elsif ($action eq 'autoenroll') {
-            $output .= &print_autoenroll($dom,$settings,\$rowtotal);
-        } elsif ($action eq 'autocreate') {
-            $output .= &print_autocreate($dom,$settings,\$rowtotal);
-        } elsif ($action eq 'directorysrch') {
-            $output .= &print_directorysrch($dom,$settings,\$rowtotal);
-        } elsif ($action eq 'contacts') {
-            $output .= &print_contacts($dom,$settings,\$rowtotal);
-        } elsif ($action eq 'defaults') {
-            $output .= &print_defaults($dom,\$rowtotal);
+        } elsif (($action eq 'autoenroll') || ($action eq 'autocreate') || ($action eq 'directorysrch') ||
+                 ($action eq 'contacts') || ($action eq 'defaults') || ($action eq 'serverstatuses') ||
+                 ($action eq 'loadbalancing')) {
+            $output .= $item->{'print'}->($dom,$settings,\$rowtotal);
         } elsif ($action eq 'scantron') {
             $output .= &print_scantronformat($r,$dom,$confname,$settings,\$rowtotal);
-        } elsif ($action eq 'serverstatuses') {
-            $output .= &print_serverstatuses($dom,$settings,\$rowtotal);
         } elsif ($action eq 'helpsettings') {
             $output .= &print_helpsettings($dom,$confname,$settings,\$rowtotal);
-        } elsif ($action eq 'loadbalancing') {
-            $output .= &print_loadbalancing($dom,$settings,\$rowtotal);
         }
     }
     $output .= '
@@ -1549,14 +1573,14 @@ sub print_quotas {
     my $typecount = 0;
     my ($css_class,%titles);
     if ($context eq 'requestcourses') {
-        @usertools = ('official','unofficial','community');
+        @usertools = ('official','unofficial','community','textbook');
         @options =('norequest','approval','validate','autolimit');
         %validations = &Apache::lonnet::auto_courserequest_checks($dom);
         %titles = &courserequest_titles();
     } elsif ($context eq 'requestauthor') {
         @usertools = ('author');
         @options = ('norequest','approval','automatic');
-        %titles = &authorrequest_titles(); 
+        %titles = &authorrequest_titles();
     } else {
         @usertools = ('aboutme','blog','webdav','portfolio');
         %titles = &tool_titles();
@@ -1968,23 +1992,26 @@ sub print_requestmail {
     if (ref($settings) eq 'HASH') {
         if (ref($settings->{'notify'}) eq 'HASH') {
             if ($settings->{'notify'}{'approval'} ne '') {
-               map {$currapp{$_}=1;} split(/,/,$settings->{'notify'}{'approval'});
+                map {$currapp{$_}=1;} split(/,/,$settings->{'notify'}{'approval'});
             }
         }
     }
     my $numinrow = 2;
-    my $css_class = 'class="LC_odd_row"';
+    my $css_class;
+    $css_class = ($$rowtotal%2? ' class="LC_odd_row"':'');
     my $text;
     if ($action eq 'requestcourses') {
         $text = &mt('Receive notification of course requests requiring approval');
+    } elsif ($action eq 'requestauthor') {
+        $text = &mt('Receive notification of Authoring Space requests requiring approval');
     } else {
-        $text = &mt('Receive notification of authoring space requests requiring approval')
+       $text = &mt('Receive notification of queued requests for self-created user accounts requiring approval');
     }
-    $datatable = '<tr '.$css_class.'>'.
+    $datatable = '<tr'.$css_class.'>'.
                  ' <td>'.$text.'</td>'.
                  ' <td class="LC_left_item">';
     my ($numdc,$table,$rows) = &active_dc_picker($dom,$numinrow,'checkbox',
-                                                 'reqapprovalnotify',%currapp);
+                                                 $action.'notifyapproval',%currapp);
     if ($numdc > 0) {
         $datatable .= $table;
     } else {
@@ -1995,6 +2022,216 @@ sub print_requestmail {
     return $datatable;
 }
 
+sub print_studentcode {
+    my ($settings,$rowtotal) = @_;
+    my $rownum = 0; 
+    my ($output,%current);
+    my @crstypes = ('official','unofficial','community','textbook');
+    if (ref($settings->{'uniquecode'}) eq 'HASH') {
+        foreach my $type (@crstypes) {
+            $current{$type} = $settings->{'uniquecode'}{$type};
+        }
+    }
+    $output .= '<tr>'.
+               '<td class="LC_left_item">'.&mt('Generate unique six character code as course identifier?').'</td>'.
+               '<td class="LC_left_item">';
+    foreach my $type (@crstypes) {
+        my $check = ' ';
+        if ($current{$type}) {
+            $check = ' checked="checked" ';
+        }
+        $output .= '<span class="LC_nobreak"><label>'.
+                   '<input type="checkbox" name="uniquecode" value="'.$type.'"'.$check.'/>'.
+                   &mt($type).'</label></span>'.('&nbsp;'x2).' ';
+    }
+    $output .= '</td></tr>';
+    $$rowtotal ++;
+    return $output;
+}
+
+sub print_textbookcourses {
+    my ($dom,$settings,$rowtotal) = @_;
+    my $rownum = 0;
+    my $css_class;
+    my $itemcount = 1;
+    my $maxnum = 0;
+    my $bookshash;
+    if (ref($settings) eq 'HASH') {
+        $bookshash = $settings->{'textbooks'};
+    }
+    my %ordered;
+    if (ref($bookshash) eq 'HASH') {
+        foreach my $item (keys(%{$bookshash})) {
+            if (ref($bookshash->{$item}) eq 'HASH') {
+                my $num = $bookshash->{$item}{'order'};
+                $ordered{$num} = $item;
+            }
+        }
+    }
+    my $confname = $dom.'-domainconfig';
+    my $switchserver = &check_switchserver($dom,$confname);
+    my $maxnum = scalar(keys(%ordered));
+    my $datatable = &textbookcourses_javascript(\%ordered);
+    if (keys(%ordered)) {
+        my @items = sort { $a <=> $b } keys(%ordered);
+        for (my $i=0; $i<@items; $i++) {
+            $css_class = $itemcount%2?' class="LC_odd_row"':'';
+            my $key = $ordered{$items[$i]};
+            my %coursehash=&Apache::lonnet::coursedescription($key);
+            my $coursetitle = $coursehash{'description'};
+            my ($subject,$title,$author,$image,$imgsrc,$cdom,$cnum);
+            if (ref($bookshash->{$key}) eq 'HASH') {
+                $subject = $bookshash->{$key}->{'subject'};
+                $title = $bookshash->{$key}->{'title'};
+                $author = $bookshash->{$key}->{'author'};
+                $image = $bookshash->{$key}->{'image'};
+                if ($image ne '') {
+                    my ($path,$imagefile) = ($image =~ m{^(.+)/([^/]+)$});
+                    my $imagethumb = "$path/tn-".$imagefile;
+                    $imgsrc = '<img src="'.$imagethumb.'" alt="'.&mt('Textbook image').'" />';
+                }
+            }
+            my $chgstr = ' onchange="javascript:reorderBooks(this.form,'."'$key'".');"';
+            $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'
+                         .'<select name="'.$key.'"'.$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>'.('&nbsp;'x2).
+                '<label><input type="checkbox" name="book_del" value="'.$key.'" />'.
+                &mt('Delete?').'</label></span></td>'.
+                '<td colspan="2">'.
+                '<span class="LC_nobreak">'.&mt('Subject:').'<input type="text" size="15" name="book_subject_'.$i.'" value="'.$subject.'" /></span> '.
+                ('&nbsp;'x2).
+                '<span class="LC_nobreak">'.&mt('Title:').'<input type="text" size="30" name="book_title_'.$i.'" value="'.$title.'" /></span> '.
+                ('&nbsp;'x2).
+                '<span class="LC_nobreak">'.&mt('Author(s):').'<input type="text" size="25" name="book_author_'.$i.'" value="'.$author.'" /></span> '.
+                ('&nbsp;'x2).
+                '<span class="LC_nobreak">'.&mt('Thumbnail:');
+            if ($image) {
+                $datatable .= '<span class="LC_nobreak">'.
+                              $imgsrc.
+                              '<label><input type="checkbox" name="book_image_del"'.
+                              ' value="'.$key.'" />'.&mt('Delete?').'</label></span> '.
+                              '<span class="LC_nobreak">&nbsp;'.&mt('Replace:').'&nbsp;';
+            }
+            if ($switchserver) {
+                $datatable .= &mt('Upload to library server: [_1]',$switchserver);
+            } else {
+                $datatable .= '<input type="file" name="book_image_'.$i.'" value="" />';
+            }
+            $datatable .= '<input type="hidden" name="book_id_'.$i.'" value="'.$key.'" /></span> '.
+                          '<span class="LC_nobreak">'.&mt('LON-CAPA course:').'&nbsp;'.
+                          $coursetitle.'</span></td></tr>'."\n";
+            $itemcount ++;
+        }
+    }
+    $css_class = $itemcount%2?' class="LC_odd_row"':'';
+    my $chgstr = ' onchange="javascript:reorderBooks(this.form,'."'addbook_pos'".');"';
+    $datatable .= '<tr '.$css_class.'><td><span class="LC_nobreak">'."\n".
+                  '<input type="hidden" name="book_maxnum" value="'.$maxnum.'" />'."\n".
+                  '<select name="addbook_pos"'.$chgstr.'>';
+    for (my $k=0; $k<$maxnum+1; $k++) {
+        my $vpos = $k+1;
+        my $selstr;
+        if ($k == $maxnum) {
+            $selstr = ' selected="selected" ';
+        }
+        $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
+    }
+    $datatable .= '</select>&nbsp;'."\n".
+                  '<input type="checkbox" name="addbook" value="1" />'.&mt('Add').'</td>'."\n".
+                  '<td colspan="2">'.
+                  '<span class="LC_nobreak">'.&mt('Subject:').'<input type="text" size="15" name="addbook_subject" value="" /></span> '."\n".
+                  ('&nbsp;'x2).
+                  '<span class="LC_nobreak">'.&mt('Title:').'<input type="text" size="30" name="addbook_title" value="" /></span> '."\n".
+                  ('&nbsp;'x2).
+                  '<span class="LC_nobreak">'.&mt('Author(s):').'<input type="text" size="25" name="addbook_author" value="" /></span> '."\n".
+                  ('&nbsp;'x2).
+                  '<span class="LC_nobreak">'.&mt('Image:').'&nbsp;';
+    if ($switchserver) {
+        $datatable .= &mt('Upload to library server: [_1]',$switchserver);
+    } else {
+        $datatable .= '<input type="file" name="addbook_image" value="" />';
+    }
+    $datatable .= '</span>'."\n".
+                  '<span class="LC_nobreak">'.&mt('LON-CAPA course:').'&nbsp;'.
+                  &Apache::loncommon::select_dom_form($env{'request.role.domain'},'addbook_cdom').
+                  '<input type="text" size="25" name="addbook_cnum" value="" />'.
+                  &Apache::loncommon::selectcourse_link
+                      ('display','addbook_cnum','addbook_cdom',undef,undef,undef,'Course');
+                  '</span></td>'."\n".
+                  '</tr>'."\n";
+    $itemcount ++;
+    return $datatable;
+}
+
+sub textbookcourses_javascript {
+    my ($textbooks) = @_;
+    return unless(ref($textbooks) eq 'HASH');
+    my $num = scalar(keys(%{$textbooks}));
+    my @jsarray;
+    foreach my $item (sort {$a <=> $b } (keys(%{$textbooks}))) {
+        push(@jsarray,$textbooks->{$item});
+    }
+    my $jstext = '    var textbooks = Array('."'".join("','",@jsarray)."'".');'."\n";
+    return <<"ENDSCRIPT";
+<script type="text/javascript">
+// <![CDATA[
+function reorderBooks(form,item) {
+    var changedVal;
+$jstext 
+    var newpos = 'addbook_pos';
+    var current = new Array;
+    var maxh = 1 + $num;
+    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<textbooks.length; i++) {
+        var elementName = textbooks[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
+}
+
 sub print_autoenroll {
     my ($dom,$settings,$rowtotal) = @_;
     my $autorun = &Apache::lonnet::auto_run(undef,$dom),
@@ -2156,7 +2393,7 @@ sub print_autocreate {
                 }
             }
         }
-        if ($settings->{'xmldc'} ne '') { 
+        if ($settings->{'xmldc'} ne '') {
             $currhash{$settings->{'xmldc'}} = 1;
         }
     } else {
@@ -2493,9 +2730,10 @@ sub print_coursedefaults {
                                                  \%choices,$itemcount);
     } else {
         $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
-        my ($currdefresponder,$def_official_credits,$def_unofficial_credits,%curruploadquota);
+        my ($currdefresponder,$def_official_credits,$def_unofficial_credits,$def_textbook_credits,
+            %curruploadquota);
         my $currusecredits = 0;
-        my @types = ('official','unofficial','community');
+        my @types = ('official','unofficial','community','textbook');
         if (ref($settings) eq 'HASH') {
             $currdefresponder = $settings->{'anonsurvey_threshold'};
             if (ref($settings->{'uploadquota'}) eq 'HASH') {
@@ -2506,7 +2744,9 @@ sub print_coursedefaults {
             if (ref($settings->{'coursecredits'}) eq 'HASH') {
                 $def_official_credits = $settings->{'coursecredits'}->{'official'};
                 $def_unofficial_credits = $settings->{'coursecredits'}->{'unofficial'};
-                if (($def_official_credits ne '') || ($def_unofficial_credits ne '')) {
+                $def_textbook_credits = $settings->{'coursecredits'}->{'textbook'};
+                if (($def_official_credits ne '') || ($def_unofficial_credits ne '') ||
+                    ($def_textbook_credits ne '')) {
                     $currusecredits = 1;
                 }
             }
@@ -2528,21 +2768,23 @@ sub print_coursedefaults {
                 '<td class="LC_right_item"><span class="LC_nobreak">'.
                 '<input type="text" name="anonsurvey_threshold"'.
                 ' value="'.$currdefresponder.'" size="5" /></span>'.
-                '</td></tr>'."\n".
-                '<tr><td><span class="LC_nobreak">'.
-                $choices{'uploadquota'}.
-                '</span></td>'.
-                '<td align="right" class="LC_right_item">'.
-                '<table><tr>';
+                '</td></tr>'."\n";
+        $itemcount ++;
+        $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
+        $datatable .= '<tr'.$css_class.'><td><span class="LC_nobreak">'.
+                      $choices{'uploadquota'}.
+                      '</span></td>'.
+                      '<td align="right" class="LC_right_item">'.
+                      '<table><tr>';
         foreach my $type (@types) {
             $datatable .= '<td align="center">'.&mt($type).'<br />'.
                            '<input type="text" name="uploadquota_'.$type.'"'.
                            ' value="'.$curruploadquota{$type}.'" size="5" /></td>';
         }
         $datatable .= '</tr></table></td></tr>'."\n";
-        $itemcount += 2;
+        $itemcount ++;
         my $onclick = 'toggleCredits(this.form);';
-        my $display = 'none';  
+        my $display = 'none';
         if ($currusecredits) {
             $display = 'block';
         }
@@ -2556,6 +2798,11 @@ sub print_coursedefaults {
                          &mt('Default credits for unofficial courses [_1]',
                          '<input type="text" name="unofficial_credits" value="'.
                          $def_unofficial_credits.'" size="3" />').
+                         '</span><br />'.
+                         '<span class="LC_nobreak">'.
+                         &mt('Default credits for textbook courses [_1]',
+                         '<input type="text" name="textbook_credits" value="'.
+                         $def_textbook_credits.'" size="3" />').
                          '</span></div>'."\n";
         %defaultchecked = ('coursecredits' => 'off');
         @toggles = ('coursecredits');
@@ -2566,6 +2813,7 @@ sub print_coursedefaults {
             &radiobutton_prefs($current,\@toggles,\%defaultchecked,
                                \%choices,$itemcount,$onclick,$additional);
         $datatable .= $table;
+        $itemcount ++;
     }
     $$rowtotal += $itemcount;
     return $datatable;
@@ -3028,7 +3276,7 @@ sub print_loadbalancing {
                       '<td rowspan="'.$rownum.'" valign="top">'.
                       '<p>';
         if ($lonhost eq '') {
-            $datatable .= '<span class="LC_nobreak">'; 
+            $datatable .= '<span class="LC_nobreak">';
             if (keys(%currbalancer) > 0) {
                 $datatable .= &mt('Add balancer:');
             } else {
@@ -3044,7 +3292,7 @@ sub print_loadbalancing {
                 next if ($currbalancer{$server});
                 $datatable .= '<option value="'.$server.'">'.$server.'</option>'."\n";
             }
-            $datatable .= 
+            $datatable .=
                 '</select>'."\n".
                 '<input type="hidden" name="loadbalancing_prevlonhost_'.$balnum.'" id="loadbalancing_prevlonhost_'.$balnum.'" value="" />&nbsp;</span>'."\n";
         } else {
@@ -3083,7 +3331,7 @@ sub print_loadbalancing {
                 if (exists($currbalancer{$spares[$i]})) {
                     $disabled = ' disabled="disabled"';
                 }
-                $targettable .= 
+                $targettable .=
                     '<td><label><input type="checkbox" name="loadbalancing_target_'.$balnum.'_'.$sparetype.'"'.
                     $checked.$disabled.' value="'.$chkboxval.'" id="loadbalancing_target_'.$balnum.'_'.$sparetype.'_'.$i.'" onclick="checkOffloads('."this,'$balnum','$sparetype'".');" /><span id="loadbalancing_targettxt_'.$balnum.'_'.$sparetype.'_'.$i.'">&nbsp;'.$chkboxval.
                     '</span></label></td>';
@@ -3167,7 +3415,7 @@ sub loadbalancing_rules {
         $css_class,$balnum,$islast) = @_;
     my $output;
     my $num = 0;
-    my ($alltypes,$othertypes,$titles) = 
+    my ($alltypes,$othertypes,$titles) =
         &loadbalancing_titles($dom,$intdom,$usertypes,$types);
     if ((ref($alltypes) eq 'ARRAY') && (ref($titles) eq 'HASH'))  {
         foreach my $type (@{$alltypes}) {
@@ -3246,7 +3494,7 @@ sub loadbalance_rule_row {
     if ($islast && $num == 1) {
         $space = '<div display="inline-block">&nbsp;</div>';
     }
-    my $output = 
+    my $output =
         '<tr class="'.$css_class.'" id="balanceruletr_'.$balnum.'_'.$num.'"><td valign="top">'.$space.
         '<div id="balanceruletitle_'.$balnum.'_'.$type.'" style="'.$style.'">'.$title.'</div></td>'."\n".
         '<td valaign="top">'.$space.
@@ -3266,7 +3514,7 @@ sub loadbalance_rule_row {
                 unless ($checked) {
                     $default = ' selected="selected"';
                 }
-                $extra = 
+                $extra =
                     ':&nbsp;<select name="loadbalancing_singleserver_'.$balnum.'_'.$type.
                     '" id="loadbalancing_singleserver_'.$balnum.'_'.$type.
                     '" onchange="singleServerToggle('."'$balnum','$type'".')">'."\n".
@@ -3346,6 +3594,7 @@ sub tool_titles {
                      official   => 'Official courses (with institutional codes)',
                      unofficial => 'Unofficial courses',
                      community  => 'Communities',
+                     textbook   => 'Textbook courses',
                  );
     return %titles;
 }
@@ -3355,6 +3604,7 @@ sub courserequest_titles {
                                    official   => 'Official',
                                    unofficial => 'Unofficial',
                                    community  => 'Communities',
+                                   textbook   => 'Textbook',
                                    norequest  => 'Not allowed',
                                    approval   => 'Approval by Dom. Coord.',
                                    validate   => 'With validation',
@@ -3371,7 +3621,7 @@ sub authorrequest_titles {
                                    automatic  => 'Automatic approval',
                  );
     return %titles;
-} 
+}
 
 sub courserequest_conditions {
     my %conditions = &Apache::lonlocal::texthash (
@@ -3407,42 +3657,22 @@ 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','requestcrs','selfcreate');
+        my @creators = ('author','course','requestcrs');
         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'}})) {
@@ -3454,10 +3684,8 @@ sub print_usercreation {
         my $rownum = 0;
         foreach my $item (@creators) {
             $rownum ++;
-            if ($item ne 'selfcreate') {  
-                if ($checked{$item} eq '') {
-                    $checked{$item} = 'any';
-                }
+            if ($checked{$item} eq '') {
+                $checked{$item} = 'any';
             }
             my $css_class;
             if ($rownum%2) {
@@ -3468,30 +3696,18 @@ sub print_usercreation {
             $datatable .= '<tr'.$css_class.'>'.
                          '<td><span class="LC_nobreak">'.$lt{$item}.
                          '</span></td><td align="right">';
-            my @options;
-            if ($item eq 'selfcreate') {
-                push(@options,('email','login','sso'));
-            } else {
-                @options = ('any');
-                if (ref($rules) eq 'HASH') {
-                    if (keys(%{$rules}) > 0) {
-                        push(@options,('official','unofficial'));
-                    }
+            my @options = ('any');
+            if (ref($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 $check = ' ';
-                if ($item eq 'selfcreate') {
-                    $type = 'checkbox';
-                    if (grep(/^\Q$option\E$/,@selfcreate)) {
-                        $check = ' checked="checked" ';
-                    }
-                } else {
-                    if ($checked{$item} eq $option) {
-                        $check = ' checked="checked" ';
-                    }
+                if ($checked{$item} eq $option) {
+                    $check = ' checked="checked" ';
                 } 
                 $datatable .= '<span class="LC_nobreak"><label>'.
                               '<input type="'.$type.'" name="can_createuser_'.
@@ -3500,22 +3716,6 @@ sub print_usercreation {
             }
             $datatable .= '</td></tr>';
         }
-        my ($othertitle,$usertypes,$types) =
-            &Apache::loncommon::sorted_inst_types($dom);
-        my $createsettings;
-        if (ref($settings) eq 'HASH') {
-            $createsettings = $settings->{cancreate};
-        }
-        if (ref($usertypes) eq 'HASH') {
-            if (keys(%{$usertypes}) > 0) {
-                $datatable .= &insttypes_row($createsettings,$types,$usertypes,
-                                             $dom,$numinrow,$othertitle,
-                                             'statustocreate');
-                $$rowtotal ++;
-                $rownum ++;
-            }
-        }
-        $datatable .= &captcha_choice('cancreate',$createsettings,$rownum);
     } else {
         my @contexts = ('author','course','domain');
         my @authtypes = ('int','krb4','krb5','loc');
@@ -3567,13 +3767,134 @@ sub print_usercreation {
     return $datatable;
 }
 
+sub print_selfcreation {
+    my ($position,$dom,$settings,$rowtotal) = @_;
+    my (@selfcreate,$createsettings,$datatable);
+    if (ref($settings) eq 'HASH') {
+        if (ref($settings->{'cancreate'}) eq 'HASH') {
+            $createsettings = $settings->{'cancreate'};
+            if (ref($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'});
+                }
+            }
+        }
+    }
+    my %radiohash;
+    my $numinrow = 4;
+    map { $radiohash{'cancreate_'.$_} = 1; } @selfcreate;
+    if ($position eq 'top') {
+        my %choices = &Apache::lonlocal::texthash (
+                                                      cancreate_login      => 'Institutional Login',
+                                                      cancreate_sso        => 'Institutional Single Sign On',
+                                                  );
+        my @toggles = sort(keys(%choices));
+        my %defaultchecked = (
+                               'cancreate_login' => 'off',
+                               'cancreate_sso'   => 'off',
+                             );
+        my ($onclick,$itemcount);
+        ($datatable,$itemcount) = &radiobutton_prefs(\%radiohash,\@toggles,\%defaultchecked,
+                                                     \%choices,$itemcount,$onclick);
+        $$rowtotal += $itemcount;
+        
+        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
+
+        if (ref($usertypes) eq 'HASH') {
+            if (keys(%{$usertypes}) > 0) {
+                $datatable .= &insttypes_row($createsettings,$types,$usertypes,
+                                             $dom,$numinrow,$othertitle,
+                                             'statustocreate',$$rowtotal);
+                $$rowtotal ++;
+            }
+        }
+    } elsif ($position eq 'middle') {
+        my %domconf = &Apache::lonnet::get_dom('configuration',['usermodification'],$dom);
+        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
+        $usertypes->{'default'} = $othertitle;
+        if (ref($types) eq 'ARRAY') {
+            push(@{$types},'default');
+            $usertypes->{'default'} = $othertitle;
+            foreach my $status (@{$types}) {
+                $datatable .= &modifiable_userdata_row('selfcreate',$status,$domconf{'usermodification'},
+                                                       $numinrow,$$rowtotal,$usertypes);
+                $$rowtotal ++;
+            }
+        }
+    } else {
+        my $css_class = $$rowtotal%2?' class="LC_odd_row"':'';
+        my %choices =
+            &Apache::lonlocal::texthash(
+                                          email         => 'Approved automatically',
+                                          emailapproval => 'Queued for approval by DC',
+                                          off           => 'Not enabled',
+                                       );
+        $datatable .= '<tr'.$css_class.'>'.
+                      '<td>'.&mt('E-mail address as username').
+                      '</td><td class="LC_left_item">'.
+                      '<span class="LC_nobreak">';
+        foreach my $option ('email','emailapproval','off') {
+            my $checked;
+            if ($option eq 'email') {
+                if ($radiohash{'cancreate_email'}) {
+                    $checked = 'checked="checked"';
+                }
+            } elsif ($option eq 'emailapproval') {
+                if ($radiohash{'cancreate_emailapproval'}) {
+                    $checked = 'checked="checked"';
+                }
+            } else {
+                if ((!$radiohash{'cancreate_email'}) && (!$radiohash{'cancreate_emailapproval'})) {
+                    $checked = 'checked="checked"';  
+                }
+            }
+            $datatable .= '<label>'.
+                          '<input type="radio" name="cancreate_email" '.
+                          $checked.' value="'.$option.'" />'.
+                          $choices{$option}.'</label>&nbsp;';
+        }
+        $$rowtotal ++;
+        $datatable .= '</span></td></tr>'.
+                      &print_requestmail($dom,'selfcreation',$createsettings,$rowtotal);
+        $$rowtotal ++;
+        my ($infofields,$infotitles) = &Apache::loncommon::emailusername_info();
+        $numinrow = 1;
+        my ($othertitle,$usertypes,$types) =  &Apache::loncommon::sorted_inst_types($dom);
+        $usertypes->{'default'} = $othertitle;
+        if (ref($types) eq 'ARRAY') {
+            push(@{$types},'default');
+            $usertypes->{'default'} = $othertitle;
+            foreach my $status (@{$types}) {
+                $datatable .= &modifiable_userdata_row('cancreate','emailusername_'.$status,$settings,
+                                                       $numinrow,$$rowtotal,$usertypes,$infofields,$infotitles);
+                $$rowtotal ++;
+            }
+        }
+        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,$$rowtotal);
+                $$rowtotal ++;
+            }
+        }
+        $datatable .= &captcha_choice('cancreate',$createsettings,$$rowtotal);
+    }
+    return $datatable;
+}
+
 sub captcha_choice {
     my ($context,$settings,$itemcount) = @_;
     my ($keyentry,$currpub,$currpriv,%checked,$rowname,$pubtext,$privtext);
     my %lt = &captcha_phrases();
     $keyentry = 'hidden';
     if ($context eq 'cancreate') {
-        $rowname = &mt('CAPTCHA validation (e-mail as username)');
+        $rowname = &mt('CAPTCHA validation');
     } elsif ($context eq 'login') {
         $rowname =  &mt('"Contact helpdesk" CAPTCHA validation');
     }
@@ -3610,9 +3931,9 @@ sub captcha_choice {
 #
 # Note: If reCAPTCHA is to be used for LON-CAPA servers in a domain, a domain coordinator should visit:
 # https://www.google.com/recaptcha and generate a Public and Private key. For domains with multiple
-# servers a single key pair will be used for all servers, so the internet domain (e.g., yourcollege.edu) 
+# servers a single key pair will be used for all servers, so the internet domain (e.g., yourcollege.edu)
 # specified for use with the key should be broad enough to accommodate all servers in the LON-CAPA domain.
-#  
+#
     $output .= '</td></tr>'."\n".
                '<tr><td>'."\n".
                '<span class="LC_nobreak"><span id="'.$context.'_recaptchapubtxt">'.$pubtext.'</span>&nbsp;'."\n".
@@ -3687,18 +4008,26 @@ sub usercreation_types {
                     author     => 'When adding a co-author',
                     course     => 'When adding a user to a course',
                     requestcrs => 'When requesting a course',
-                    selfcreate => 'User creates own account', 
                     any        => 'Any',
                     official   => 'Institutional only ',
                     unofficial => 'Non-institutional only',
-                    email      => 'E-mail address',
-                    login      => 'Institutional Login',
-                    sso        => 'SSO', 
                     none       => 'None',
     );
     return %lt;
 }
 
+sub selfcreation_types {
+    my %lt = &Apache::lonlocal::texthash (
+                    selfcreate => 'User creates own account',
+                    any        => 'Any',
+                    official   => 'Institutional only ',
+                    unofficial => 'Non-institutional only',
+                    email      => 'E-mail address',
+                    login      => 'Institutional Login',
+                    sso        => 'SSO',
+             );
+}
+
 sub authtype_names {
     my %lt = &Apache::lonlocal::texthash(
                       int    => 'Internal',
@@ -3731,7 +4060,7 @@ sub print_usermodification {
             $$rowtotal ++;
             $rowcount ++;
         }
-    } elsif ($position eq 'middle') {
+    } elsif ($position eq 'bottom') {
         $context = 'course';
         $rowcount = 0;
         foreach my $role ('st','ep','ta','in','cr') {
@@ -3740,29 +4069,23 @@ sub print_usermodification {
             $$rowtotal ++;
             $rowcount ++;
         }
-    } elsif ($position eq 'bottom') {
-        $context = 'selfcreate';
-        my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
-        $usertypes->{'default'} = $othertitle;
-        if (ref($types) eq 'ARRAY') {
-            push(@{$types},'default');
-            $usertypes->{'default'} = $othertitle;
-            foreach my $status (@{$types}) {
-                $datatable .= &modifiable_userdata_row($context,$status,$settings,
-                                                       $numinrow,$rowcount,$usertypes);
-                $$rowtotal ++;
-                $rowcount ++;
-            }
-        }
     }
     return $datatable;
 }
 
 sub print_defaults {
-    my ($dom,$rowtotal) = @_;
+    my ($dom,$settings,$rowtotal) = @_;
     my @items = ('auth_def','auth_arg_def','lang_def','timezone_def',
                  'datelocale_def','portal_def');
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    my %defaults;
+    if (ref($settings) eq 'HASH') {
+        %defaults = %{$settings};
+    } else {
+        my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+        foreach my $item (@items) {
+            $defaults{$item} = $domdefaults{$item};
+        }
+    }
     my $titles = &defaults_titles($dom);
     my $rownum = 0;
     my ($datatable,$css_class);
@@ -3786,7 +4109,7 @@ sub print_defaults {
             my %authnames = &authtype_names();
             foreach my $auth (@authtypes) {
                 my $checked = ' ';
-                if ($domdefaults{$item} eq $auth) {
+                if ($defaults{$item} eq $auth) {
                     $checked = ' checked="checked" ';
                 }
                 $datatable .= '<label><input type="radio" name="'.$item.
@@ -3795,15 +4118,15 @@ sub print_defaults {
             }
         } elsif ($item eq 'timezone_def') {
             my $includeempty = 1;
-            $datatable .= &Apache::loncommon::select_timezone($item,$domdefaults{$item},undef,$includeempty);
+            $datatable .= &Apache::loncommon::select_timezone($item,$defaults{$item},undef,$includeempty);
         } elsif ($item eq 'datelocale_def') {
             my $includeempty = 1;
-            $datatable .= &Apache::loncommon::select_datelocale($item,$domdefaults{$item},undef,$includeempty);
+            $datatable .= &Apache::loncommon::select_datelocale($item,$defaults{$item},undef,$includeempty);
         } elsif ($item eq 'lang_def') {
             my %langchoices = &get_languages_hash();
             $langchoices{''} = 'No language preference';
             %langchoices = &Apache::lonlocal::texthash(%langchoices);
-            $datatable .= &Apache::loncommon::select_form($domdefaults{$item},$item,
+            $datatable .= &Apache::loncommon::select_form($defaults{$item},$item,
                                                           \%langchoices);
         } else {
             my $size;
@@ -3811,7 +4134,7 @@ sub print_defaults {
                 $size = ' size="25"';
             }
             $datatable .= '<input type="text" name="'.$item.'" value="'.
-                          $domdefaults{$item}.'"'.$size.' />';
+                          $defaults{$item}.'"'.$size.' />';
         }
         $datatable .= '</td></tr>';
         $rownum ++;
@@ -4148,7 +4471,7 @@ sub print_coursecategories {
                             }
                             $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                         }
-                        $datatable .= '</select></td><td>';
+                        $datatable .= '</select></span></td><td>';
                         if ($parent eq 'instcode' || $parent eq 'communities') {
                             $datatable .=  '<span class="LC_nobreak">'
                                            .$default_names{$parent}.'</span>';
@@ -4178,7 +4501,8 @@ sub print_coursecategories {
                             $datatable .= '</td>';
                         } else {
                             $datatable .= $parent
-                                          .'&nbsp;<label><input type="checkbox" name="deletecategory" '
+                                          .'&nbsp;<span class="LC_nobreak"><label>'
+                                          .'<input type="checkbox" name="deletecategory" '
                                           .'value="'.$item.'" />'.&mt('Delete').'</label></span></td>';
                         }
                         my $depth = 1;
@@ -4293,7 +4617,8 @@ sub print_serverstatuses {
 sub serverstatus_pages {
     return ('userstatus','lonstatus','loncron','server-status','codeversions',
             'checksums','clusterstatus','metadata_keywords','metadata_harvest',
-            'takeoffline','takeonline','showenv','toggledebug','ping','domconf');
+            'takeoffline','takeonline','showenv','toggledebug','ping','domconf',
+            'uniquecodes','diskusage');
 }
 
 sub coursecategories_javascript {
@@ -4524,9 +4849,22 @@ sub build_category_rows {
 }
 
 sub modifiable_userdata_row {
-    my ($context,$role,$settings,$numinrow,$rowcount,$usertypes) = @_;
-    my $rolename;
-    if ($context eq 'selfcreate') {
+    my ($context,$item,$settings,$numinrow,$rowcount,$usertypes,$fieldsref,$titlesref) = @_;
+    my ($role,$rolename,$statustype);
+    $role = $item;
+    if ($context eq 'cancreate') {
+        if ($item =~ /^emailusername_(.+)$/) {
+            $statustype = $1;
+            $role = 'emailusername';
+            if (ref($usertypes) eq 'HASH') {
+                if ($usertypes->{$statustype}) {
+                    $rolename = &mt('Data provided by [_1]',$usertypes->{$statustype});
+                } else {
+                    $rolename = &mt('Data provided by user');
+                }
+            }
+        }
+    } elsif ($context eq 'selfcreate') {
         if (ref($usertypes) eq 'HASH') {
             $rolename = $usertypes->{$role};
         } else {
@@ -4539,9 +4877,18 @@ sub modifiable_userdata_row {
             $rolename = &Apache::lonnet::plaintext($role);
         }
     }
-    my @fields = ('lastname','firstname','middlename','generation',
-                  'permanentemail','id');
-    my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
+    my (@fields,%fieldtitles);
+    if (ref($fieldsref) eq 'ARRAY') {
+        @fields = @{$fieldsref};
+    } else {
+        @fields = ('lastname','firstname','middlename','generation',
+                   'permanentemail','id');
+    }
+    if ((ref($titlesref) eq 'HASH')) {
+        %fieldtitles = %{$titlesref};
+    } else {
+        %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
+    }
     my $output;
     my $css_class = $rowcount%2?' class="LC_odd_row"':'';
     $output = '<tr '.$css_class.'>'.
@@ -4552,14 +4899,33 @@ sub modifiable_userdata_row {
     if (ref($settings) eq 'HASH') {
         if (ref($settings->{$context}) eq 'HASH') {
             if (ref($settings->{$context}->{$role}) eq 'HASH') {
-                foreach my $field (@fields) {
-                    if ($settings->{$context}->{$role}->{$field}) {
-                        $checks{$field} = ' checked="checked" ';
+                my $hashref = $settings->{$context}->{$role};
+                if ($role eq 'emailusername') {
+                    if ($statustype) {
+                        if (ref($settings->{$context}->{$role}->{$statustype}) eq 'HASH') {
+                            $hashref = $settings->{$context}->{$role}->{$statustype};
+                            if (ref($hashref) eq 'HASH') { 
+                                foreach my $field (@fields) {
+                                    if ($hashref->{$field}) {
+                                        $checks{$field} = $hashref->{$field};
+                                    }
+                                }
+                            }
+                        }
+                    }
+                } else {
+                    if (ref($hashref) eq 'HASH') {
+                        foreach my $field (@fields) {
+                            if ($hashref->{$field}) {
+                                $checks{$field} = ' checked="checked" ';
+                            }
+                        }
                     }
                 }
             }
         }
     }
+     
     for (my $i=0; $i<@fields; $i++) {
         my $rem = $i%($numinrow);
         if ($rem == 0) {
@@ -4569,20 +4935,40 @@ sub modifiable_userdata_row {
             $output .= '<tr>';
         }
         my $check = ' ';
-        if (exists($checks{$fields[$i]})) {
-            $check = $checks{$fields[$i]}
-        } else {
-            if ($role eq 'st') {
-                if (ref($settings) ne 'HASH') {
-                    $check = ' checked="checked" '; 
+        unless ($role eq 'emailusername') {
+            if (exists($checks{$fields[$i]})) {
+                $check = $checks{$fields[$i]}
+            } else {
+                if ($role eq 'st') {
+                    if (ref($settings) ne 'HASH') {
+                        $check = ' checked="checked" '; 
+                    }
                 }
             }
         }
         $output .= '<td class="LC_left_item">'.
-                   '<span class="LC_nobreak"><label>'.
-                   '<input type="checkbox" name="canmodify_'.$role.'" '.
-                   'value="'.$fields[$i].'"'.$check.'/>'.$fieldtitles{$fields[$i]}.
-                   '</label></span></td>';
+                   '<span class="LC_nobreak">';
+        if ($role eq 'emailusername') {
+            unless ($checks{$fields[$i]} =~ /^(required|optional)$/) {
+                $checks{$fields[$i]} = 'omit';
+            }
+            foreach my $option ('required','optional','omit') {
+                my $checked='';
+                if ($checks{$fields[$i]} eq $option) {
+                    $checked='checked="checked" ';
+                }
+                $output .= '<label>'.
+                           '<input type="radio" name="canmodify_'.$item.'_'.$fields[$i].'" value="'.$option.'" '.$checked.'/>'.
+                           &mt($option).'</label>'.('&nbsp;' x2);
+            }
+            $output .= '<i>'.$fieldtitles{$fields[$i]}.'</i>';
+        } else {
+            $output .= '<label>'.
+                       '<input type="checkbox" name="canmodify_'.$role.'" '.
+                       'value="'.$fields[$i].'"'.$check.'/>'.$fieldtitles{$fields[$i]}.
+                       '</label>';
+        }
+        $output .= '</span></td>';
         $rem = @fields%($numinrow);
     }
     my $colsleft = $numinrow - $rem;
@@ -4597,7 +4983,7 @@ sub modifiable_userdata_row {
 }
 
 sub insttypes_row {
-    my ($settings,$types,$usertypes,$dom,$numinrow,$othertitle,$context) = @_;
+    my ($settings,$types,$usertypes,$dom,$numinrow,$othertitle,$context,$rownum) = @_;
     my %lt = &Apache::lonlocal::texthash (
                       cansearch => 'Users allowed to search',
                       statustocreate => 'Institutional affiliation(s) able to create own account (login/SSO)',
@@ -4611,9 +4997,13 @@ sub insttypes_row {
     if ($context eq 'statustocreate') {
         $class = 'LC_right_item';
     }
-    my $output =  '<tr class="LC_odd_row">'.
-                  '<td>'.$lt{$context}.$showdom.
-                  '</td><td class="'.$class.'" colspan="2"><table>';
+    my $css_class = ' class="LC_odd_row"';
+    if ($rownum ne '') { 
+        $css_class = ($rownum%2? ' class="LC_odd_row"':'');
+    }
+    my $output = '<tr'.$css_class.'>'.
+                 '<td>'.$lt{$context}.$showdom.
+                 '</td><td class="'.$class.'" colspan="2"><table>';
     my $rem;
     if (ref($types) eq 'ARRAY') {
         for (my $i=0; $i<@{$types}; $i++) {
@@ -4922,7 +5312,7 @@ sub modify_login {
                     } else {
                         my $puberror = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$newfile{$lang},$result);
                         $errors .= '<li><span class="LC_error">'.$puberror.'</span></li>';
-                        if ((grep(/^\Q$lang\E$/,@currlangs)) && 
+                        if ((grep(/^\Q$lang\E$/,@currlangs)) &&
                             (!grep(/^\Q$lang\E$/,@delurls))) {
 
                             $loginhash{'login'}{'helpurl'}{$lang} = $domconfig{'login'}{'helpurl'}{$lang};
@@ -4980,7 +5370,9 @@ sub modify_login {
         }
         if (keys(%changes) > 0 || $colchgtext) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            $$lastactref = 'update';
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domainconfig'} = 1;
+            }
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (sort(keys(%changes))) {
                 if ($item eq 'loginvia') {
@@ -5040,7 +5432,7 @@ sub modify_login {
                     }
                 } elsif ($item eq 'captcha') {
                     if (ref($loginhash{'login'}) eq 'HASH') {
-                        my $chgtxt; 
+                        my $chgtxt;
                         if ($loginhash{'login'}{$item} eq 'notused') {
                             $chgtxt .= &mt('No CAPTCHA validation in use for helpdesk form.');
                         } else {
@@ -5128,7 +5520,9 @@ sub modify_rolecolors {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            $$lastactref = 'update';
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domainconfig'} = 1;
+            }
             $resulttext = &display_colorchgs($dom,\%changes,$roles,
                                              $rolehash{'rolecolors'});
         } else {
@@ -5540,7 +5934,7 @@ sub publishlogo {
 # See if there is anything left
     unless ($fname) { return ('error: no uploaded file'); }
     $fname="$subdir/$fname";
-    my $docroot=$r->dir_config('lonDocRoot'); 
+    my $docroot=$r->dir_config('lonDocRoot');
     my $filepath="$docroot/priv";
     my $relpath = "$dom/$confname";
     my ($fnamepath,$file,$fetchthumb);
@@ -5809,21 +6203,25 @@ sub check_switchserver {
 }
 
 sub modify_quotas {
-    my ($dom,$action,%domconfig) = @_;
+    my ($r,$dom,$action,$lastactref,%domconfig) = @_;
     my ($context,@usertools,@options,%validations,%titles,%confhash,%toolshash,
-        %limithash,$toolregexp,%conditions,$resulttext,%changes);
+        %limithash,$toolregexp,%conditions,$resulttext,%changes,$confname,$configuserok,
+        $author_ok,$switchserver,$errors);
     if ($action eq 'quotas') {
         $context = 'tools'; 
     } else {
         $context = $action;
     }
     if ($context eq 'requestcourses') {
-        @usertools = ('official','unofficial','community');
+        @usertools = ('official','unofficial','community','textbook');
         @options =('norequest','approval','validate','autolimit');
         %validations = &Apache::lonnet::auto_courserequest_checks($dom);
         %titles = &courserequest_titles();
         $toolregexp = join('|',@usertools);
         %conditions = &courserequest_conditions();
+        $confname = $dom.'-domainconfig';
+        my $servadm = $r->dir_config('lonAdmEMail');
+        ($configuserok,$author_ok,$switchserver) = &config_check($dom,$confname,$servadm);
     } elsif ($context eq 'requestauthor') {
         @usertools = ('author');
         %titles = &authorrequest_titles();
@@ -5831,7 +6229,7 @@ sub modify_quotas {
         @usertools = ('aboutme','blog','webdav','portfolio');
         %titles = &tool_titles();
     }
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
     my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     foreach my $key (keys(%env)) {
         if ($context eq 'requestcourses') {
@@ -5859,9 +6257,39 @@ sub modify_quotas {
         }
     }
     if (($context eq 'requestcourses') || ($context eq 'requestauthor')) {
-        my @approvalnotify = &Apache::loncommon::get_env_multiple('form.reqapprovalnotify');
+        my @approvalnotify = &Apache::loncommon::get_env_multiple('form.'.$context.'notifyapproval');
         @approvalnotify = sort(@approvalnotify);
         $confhash{'notify'}{'approval'} = join(',',@approvalnotify);
+        my @crstypes = ('official','unofficial','community','textbook');
+        my @hasuniquecode = &Apache::loncommon::get_env_multiple('form.uniquecode');
+        foreach my $type (@hasuniquecode) {
+            if (grep(/^\Q$type\E$/,@crstypes)) {
+                $confhash{'uniquecode'}{$type} = 1;
+            }
+        }
+        my ($newbook,@allpos);
+        if ($context eq 'requestcourses') {
+            if ($env{'form.addbook'}) {
+                if (($env{'form.addbook_cnum'} =~ /^$match_courseid$/) &&
+                    ($env{'form.addbook_cdom'} =~ /^$match_domain$/)) {
+                    if (&Apache::lonnet::homeserver($env{'form.addbook_cnum'},
+                                                    $env{'form.addbook_cdom'}) eq 'no_host') {
+                        $errors .= '<li><span class="LC_error">'.&mt('Invalid LON-CAPA course for textbook').
+                                   '</span></li>';
+                    } else {
+                        $newbook = $env{'form.addbook_cdom'}.'_'.$env{'form.addbook_cnum'};
+                        my $position = $env{'form.addbook_pos'};
+                        $position =~ s/\D+//g;
+                        if ($position ne '') {
+                            $allpos[$position] = $newbook;
+                        }
+                    }
+                } else {
+                    $errors .= '<li><span class="LC_error">'.&mt('Invalid LON-CAPA course for textbook').
+                               '</span></li>';
+                }
+            }
+        }
         if (ref($domconfig{$action}) eq 'HASH') {
             if (ref($domconfig{$action}{'notify'}) eq 'HASH') {
                 if ($domconfig{$action}{'notify'}{'approval'} ne $confhash{'notify'}{'approval'}) {
@@ -5872,10 +6300,131 @@ sub modify_quotas {
                     $changes{'notify'}{'approval'} = 1;
                 }
             }
+            if (ref($domconfig{$action}{'uniquecode'}) eq 'HASH') {
+                if (ref($confhash{'uniquecode'}) eq 'HASH') {
+                    foreach my $crstype (keys(%{$domconfig{$action}{'uniquecode'}})) {
+                        unless ($confhash{'uniquecode'}{$crstype}) {
+                            $changes{'uniquecode'} = 1;
+                        }
+                    }
+                    unless ($changes{'uniquecode'}) {
+                        foreach my $crstype (keys(%{$confhash{'uniquecode'}})) {
+                            unless ($domconfig{$action}{'uniquecode'}{$crstype}) {
+                                $changes{'uniquecode'} = 1;
+                            }
+                        }
+                    }
+               } else {
+                   $changes{'uniquecode'} = 1;
+               }
+            } elsif (ref($confhash{'uniquecode'}) eq 'HASH') {
+                $changes{'uniquecode'} = 1;
+            }
+            if ($context eq 'requestcourses') {
+                if (ref($domconfig{$action}{'textbooks'}) eq 'HASH') {
+                    my %deletions;
+                    my @todelete = &Apache::loncommon::get_env_multiple('form.book_del');
+                    if (@todelete) {
+                        map { $deletions{$_} = 1; } @todelete;
+                    }
+                    my %imgdeletions;
+                    my @todeleteimages = &Apache::loncommon::get_env_multiple('form.book_image_del');
+                    if (@todeleteimages) {
+                        map { $imgdeletions{$_} = 1; } @todeleteimages;
+                    }
+                    my $maxnum = $env{'form.book_maxnum'};
+                    for (my $i=0; $i<=$maxnum; $i++) {
+                        my $key = $env{'form.book_id_'.$i};
+                        if (ref($domconfig{$action}{'textbooks'}{$key}) eq 'HASH') {
+                            if ($deletions{$key}) {
+                                if ($domconfig{$action}{'textbooks'}{$key}{'image'}) {
+                                    #FIXME need to obsolete item in RES space
+                                }
+                                next;
+                            } else {
+                                my $newpos = $env{'form.'.$key};
+                                $newpos =~ s/\D+//g;
+                                foreach my $item ('subject','title','author') {
+                                    $confhash{'textbooks'}{$key}{$item} = $env{'form.book_'.$item.'_'.$i};
+                                    if ($domconfig{$action}{'textbooks'}{$key}{$item} ne $confhash{'textbooks'}{$key}{$item}) {
+                                        $changes{'textbooks'}{$key} = 1;
+                                    }
+                                }
+                                $allpos[$newpos] = $key;
+                            }
+                            if ($imgdeletions{$key}) {
+                                $changes{'textbooks'}{$key} = 1;
+                                #FIXME need to obsolete item in RES space
+                            } elsif ($env{'form.book_image_'.$i.'.filename'}) {
+                                my ($cdom,$cnum) = split(/_/,$key);
+                                my ($imgurl,$error) = &process_textbook_image($r,$dom,$confname,'book_image_'.$i,
+                                                                              $cdom,$cnum,$configuserok,
+                                                                              $switchserver,$author_ok);
+                                if ($imgurl) {
+                                    $confhash{'textbooks'}{$key}{'image'} = $imgurl;
+                                    $changes{'textbooks'}{$key} = 1; 
+                                }
+                                if ($error) {
+                                    &Apache::lonnet::logthis($error);
+                                    $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+                                } 
+                            } elsif ($domconfig{$action}{'textbooks'}{$key}{'image'}) {
+                                $confhash{'textbooks'}{$key}{'image'} = 
+                                    $domconfig{$action}{'textbooks'}{$key}{'image'};
+                            }
+                        }
+                    }
+                }
+            }
         } else {
             if ($confhash{'notify'}{'approval'}) {
                 $changes{'notify'}{'approval'} = 1;
             }
+            if (ref($confhash{'uniquecode'} eq 'HASH')) {
+                $changes{'uniquecode'} = 1;
+            }
+        }
+        if ($context eq 'requestcourses') {
+            if ($newbook) {
+                $changes{'textbooks'}{$newbook} = 1;
+                foreach my $item ('subject','title','author') {
+                    $env{'form.addbook_'.$item} =~ s/(`)/'/g;
+                    if ($env{'form.addbook_'.$item}) {
+                        $confhash{'textbooks'}{$newbook}{$item} = $env{'form.addbook_'.$item};
+                    }
+                }
+                if ($env{'form.addbook_image.filename'} ne '') {
+                    my ($cdom,$cnum) = split(/_/,$newbook);
+                    my ($imageurl,$error) = 
+                        &process_textbook_image($r,$dom,$confname,'addbook_image',$cdom,$cnum,$configuserok,
+                                                $switchserver,$author_ok);
+                    if ($imageurl) {
+                        $confhash{'textbooks'}{$newbook}{'image'} = $imageurl;
+                    }
+                    if ($error) {
+                        &Apache::lonnet::logthis($error);
+                        $errors .= '<li><span class="LC_error">'.$error.'</span></li>';
+                    }
+                }
+            }
+            if (@allpos > 0) {
+                my $idx = 0;
+                foreach my $item (@allpos) {
+                    if ($item ne '') {
+                        $confhash{'textbooks'}{$item}{'order'} = $idx;
+                        if (ref($domconfig{$action}) eq 'HASH') {
+                            if (ref($domconfig{$action}{'textbooks'}) eq 'HASH') {
+                                if (ref($domconfig{$action}{'textbooks'}{$item}) eq 'HASH') {
+                                    if ($domconfig{$action}{'textbooks'}{$item}{'order'} ne $idx) {
+                                        $changes{'textbooks'}{$item} = 1;
+                                    }
+                                }
+                            }
+                        }
+                        $idx ++;
+                    }
+                }
+            }
         }
     } else {
         $confhash{'defaultquota'}{'default'} = $env{'form.defaultquota'};
@@ -6017,7 +6566,9 @@ sub modify_quotas {
         $domdefaults{'requestauthor'} = \%confhash;
     } else {
         foreach my $key (keys(%confhash)) {
-            $domdefaults{$key} = $confhash{$key};
+            unless (($context eq 'requestcourses') && ($key eq 'textbooks')) {
+                $domdefaults{$key} = $confhash{$key};
+            }
         }
     }
 
@@ -6030,9 +6581,11 @@ sub modify_quotas {
         if (keys(%changes) > 0) {
             my $cachetime = 24*60*60;
             &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
-
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domdefaults'} = 1;
+            }
             $resulttext = &mt('Changes made:').'<ul>';
-            unless (($context eq 'requestcourses') || 
+            unless (($context eq 'requestcourses') ||
                     ($context eq 'requestauthor')) {
                 if (ref($changes{'defaultquota'}) eq 'HASH') {
                     $resulttext .= '<li>'.&mt('Portfolio default quotas').'<ul>';
@@ -6042,20 +6595,20 @@ sub modify_quotas {
                             if ($type eq 'default') {
                                 $typetitle = $othertitle;
                             }
-                            $resulttext .= '<li>'.&mt('[_1] set to [_2] Mb',$typetitle,$confhash{'defaultquota'}{$type}).'</li>';
+                            $resulttext .= '<li>'.&mt('[_1] set to [_2] MB',$typetitle,$confhash{'defaultquota'}{$type}).'</li>';
                         }
                     }
                     $resulttext .= '</ul></li>';
                 }
                 if (ref($changes{'authorquota'}) eq 'HASH') {
-                    $resulttext .= '<li>'.&mt('Authoring space default quotas').'<ul>';
+                    $resulttext .= '<li>'.&mt('Authoring Space default quotas').'<ul>';
                     foreach my $type (@{$types},'default') {
                         if (defined($changes{'authorquota'}{$type})) {
                             my $typetitle = $usertypes->{$type};
                             if ($type eq 'default') {
                                 $typetitle = $othertitle;
                             }
-                            $resulttext .= '<li>'.&mt('[_1] set to [_2] Mb',$typetitle,$confhash{'authorquota'}{$type}).'</li>';
+                            $resulttext .= '<li>'.&mt('[_1] set to [_2] MB',$typetitle,$confhash{'authorquota'}{$type}).'</li>';
                         }
                     }
                     $resulttext .= '</ul></li>';
@@ -6066,7 +6619,7 @@ sub modify_quotas {
                 my (%haschgs,%inconf);
                 if ($context eq 'requestauthor') {
                     %haschgs = %changes;
-                    %inconf = %confhash; 
+                    %inconf = %confhash;
                 } else {
                     if (ref($changes{$item}) eq 'HASH') {
                         %haschgs = %{$changes{$item}};
@@ -6080,7 +6633,7 @@ sub modify_quotas {
                         &Apache::lonnet::usertools_access($env{'user.name'},
                                                           $env{'user.domain'},
                                                           $item,'reload',$context);
-                    if (($context eq 'requestcourses') || 
+                    if (($context eq 'requestcourses') ||
                         ($context eq 'requestauthor')) {
                         if ($env{'environment.canrequest.'.$item} ne $newacc) {
                             $newenv{'environment.canrequest.'.$item} = $newacc;
@@ -6152,6 +6705,42 @@ sub modify_quotas {
                     }
                 }
             }
+            if ($action eq 'requestcourses') {
+                my @offon = ('off','on');
+                if ($changes{'uniquecode'}) {
+                    if (ref($confhash{'uniquecode'}) eq 'HASH') {
+                        my $codestr = join(' ',map{ &mt($_); } sort(keys(%{$confhash{'uniquecode'}})));
+                        $resulttext .= '<li>'.
+                                       &mt('Generation of six character code as course identifier for distribution to students set to on for: [_1].','<b>'.$codestr.'</b>').
+                                       '</li>';
+                    } else {
+                        $resulttext .= '<li>'.&mt('Generation of six character code as course identifier for distribution to students set to off.').
+                                       '</li>';
+                    }
+                }
+                if (ref($changes{'textbooks'}) eq 'HASH') {
+                    $resulttext .= '<li>'.&mt('Available textbooks updated').'<ul>';
+                    foreach my $key (sort(keys(%{$changes{'textbooks'}}))) {
+                        my %coursehash = &Apache::lonnet::coursedescription($key);
+                        my $coursetitle = $coursehash{'description'};
+                        my $position = $confhash{'textbooks'}{$key}{'order'} + 1;
+                        $resulttext .= '<li>';
+                        foreach my $item ('subject','title','author') {
+                            my $name = $item.':';
+                            $name =~ s/^(\w)/\U$1/;
+                            $resulttext .= &mt($name).' '.$confhash{'textbooks'}{$key}{$item}.'<br />';
+                        }
+                        $resulttext .= ' '.&mt('Order: [_1]',$position).'<br />';
+                        if ($confhash{'textbooks'}{$key}{'image'}) {
+                            $resulttext .= ' '.&mt('Image: [_1]',
+                                               '<img src="'.$confhash{'textbooks'}{$key}{'image'}.'"'.
+                                               ' alt="Textbook cover" />').'<br />';
+                        }
+                        $resulttext .= ' '.&mt('LON-CAPA Course: [_1]',$coursetitle).'</li>';
+                    }
+                    $resulttext .= '</ul></li>';
+                }
+            }
             $resulttext .= '</ul>';
             if (keys(%newenv)) {
                 &Apache::lonnet::appenv(\%newenv);
@@ -6169,9 +6758,40 @@ sub modify_quotas {
         $resulttext = '<span class="LC_error">'.
 	    &mt('An error occurred: [_1]',$putresult).'</span>';
     }
+    if ($errors) {
+        $resulttext .= '<p>'.&mt('The following errors occurred when modifying Textbook settings.').
+                       '<ul>'.$errors.'</ul></p>';
+    }
     return $resulttext;
 }
 
+sub process_textbook_image {
+    my ($r,$dom,$confname,$caller,$cdom,$cnum,$configuserok,$switchserver,$author_ok) = @_;
+    my $filename = $env{'form.'.$caller.'.filename'};
+    my ($error,$url);
+    my ($width,$height) = (50,50);
+    if ($configuserok eq 'ok') {
+        if ($switchserver) {
+            $error = &mt('Upload of textbook image is not permitted to this server: [_1]',
+                         $switchserver);
+        } elsif ($author_ok eq 'ok') {
+            my ($result,$imageurl) =
+                &publishlogo($r,'upload',$caller,$dom,$confname,
+                             "textbooks/$dom/$cnum/cover",$width,$height);
+            if ($result eq 'ok') {
+                $url = $imageurl;
+            } else {
+                $error = &mt("Upload of [_1] failed because an error occurred publishing the file in RES space. Error was: [_2].",$filename,$result);
+            }
+        } else {
+            $error = &mt("Upload of [_1] failed because an author role could not be assigned to a Domain Configuration user ([_2]) in domain: [_3].  Error was: [_4].",$filename,$confname,$dom,$author_ok);
+        }
+    } else {
+        $error = &mt("Upload of [_1] failed because a Domain Configuration user ([_2]) could not be created in domain: [_3].  Error was: [_4].",$filename,$confname,$dom,$configuserok);
+    }
+    return ($url,$error);
+}
+
 sub modify_autoenroll {
     my ($dom,$lastactref,%domconfig) = @_;
     my ($resulttext,%changes);
@@ -6241,7 +6861,9 @@ sub modify_autoenroll {
             if ($changes{'coowners'}) {
                 $resulttext .= '<li>'.&mt("$title{'coowners'} set to $offon[$env{'form.autoassign_coowners'}]").'</li>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
-                $$lastactref = 'update';
+                if (ref($lastactref) eq 'HASH') {
+                    $lastactref->{'domainconfig'} = 1;
+                }
             }
             $resulttext .= '</ul>';
         } else {
@@ -6647,7 +7269,7 @@ sub modify_directorysrch {
                         } else {
                             $chgtext =~ s/\; $//;
                         }
-                        $resulttext .= 
+                        $resulttext .=
                             '<li>'.
                             &mt("Users from domain '[_1]' permitted to search the institutional directory set to: [_2]",
                                 '<span class="LC_cusr_emph">'.$dom.'</span>',$chgtext).
@@ -6799,7 +7421,9 @@ sub modify_contacts {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            $$lastactref = 'update';
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domainconfig'} = 1;
+            }
             my ($titles,$short_titles)  = &contact_titles();
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (@contacts) {
@@ -6860,106 +7484,38 @@ sub modify_contacts {
 
 sub modify_usercreation {
     my ($dom,%domconfig) = @_;
-    my ($resulttext,%curr_usercreation,%changes,%authallowed,%cancreate);
+    my ($resulttext,%curr_usercreation,%changes,%authallowed,%cancreate,%save_usercreate);
     my $warningmsg;
     if (ref($domconfig{'usercreation'}) eq 'HASH') {
         foreach my $key (keys(%{$domconfig{'usercreation'}})) {
-            $curr_usercreation{$key} = $domconfig{'usercreation'}{$key};
-        }
-    }
-    my @username_rule = &Apache::loncommon::get_env_multiple('form.username_rule');
-    my @id_rule = &Apache::loncommon::get_env_multiple('form.id_rule');
-    my @email_rule = &Apache::loncommon::get_env_multiple('form.email_rule');
-    my @contexts = ('author','course','requestcrs','selfcreate');
-    foreach my $item(@contexts) {
-        if ($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}})) {
-                        $warningmsg = &mt('Although account creation has been set to be available for institutional logins, currently default authentication in this domain has not been set to support this.').' '.&mt('You need to set the default authentication type to Kerberos 4 or 5 (with a Kerberos domain specified), or to Local authentication, if the localauth module has been customized in your domain to authenticate institutional logins.');   
+            if ($key eq 'cancreate') {
+                if (ref($domconfig{'usercreation'}{$key}) eq 'HASH') {
+                    foreach my $item (keys(%{$domconfig{'usercreation'}{$key}})) {
+                        if (($item eq 'selfcreate') || ($item eq 'statustocreate') ||
+                            ($item eq 'captcha') || ($item eq 'recaptchakeys')) {
+                            $save_usercreate{$key}{$item} = $domconfig{'usercreation'}{$key}{$item};
+                        } else {
+                            $curr_usercreation{$key}{$item} = $domconfig{'usercreation'}{$key}{$item};
+                        }
                     }
                 }
+            } elsif ($key eq 'email_rule') {
+                $save_usercreate{$key} = $domconfig{'usercreation'}{$key};
+            } else {
+                $curr_usercreation{$key} = $domconfig{'usercreation'}{$key};
             }
-        } else {
-            $cancreate{$item} = $env{'form.can_createuser_'.$item};
         }
     }
-    my ($othertitle,$usertypes,$types) = 
-        &Apache::loncommon::sorted_inst_types($dom);
-    if (ref($types) eq 'ARRAY') {
-        if (@{$types} > 0) {
-            @{$cancreate{'statustocreate'}} = 
-                &Apache::loncommon::get_env_multiple('form.statustocreate');
-        } else {
-            @{$cancreate{'statustocreate'}} = ();
-        }
-        push(@contexts,'statustocreate');
+    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','requestcrs');
+    foreach my $item(@contexts) {
+        $cancreate{$item} = $env{'form.can_createuser_'.$item};
     }
-    &process_captcha('cancreate',\%changes,\%cancreate,\%curr_usercreation);
     if (ref($curr_usercreation{'cancreate'}) eq 'HASH') {
         foreach my $item (@contexts) {
-            if (($item eq 'selfcreate') || ($item eq 'statustocreate')) {
-                if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') {
-                    foreach my $curr (@{$curr_usercreation{'cancreate'}{$item}}) {
-                        if (ref($cancreate{$item}) eq 'ARRAY') {
-                            if (!grep(/^$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);
-                }
+            if ($curr_usercreation{'cancreate'}{$item} ne $cancreate{$item}) {
+                push(@{$changes{'cancreate'}},$item);
             }
         }
     } elsif (ref($curr_usercreation{'cancreate'}) eq 'ARRAY') {
@@ -7010,21 +7566,6 @@ sub modify_usercreation {
         push(@{$changes{'id_rule'}},@id_rule);
     }
 
-    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;
@@ -7055,39 +7596,435 @@ sub modify_usercreation {
         }
     }
 
+    $save_usercreate{'cancreate'}{'course'} = $cancreate{'course'}; 
+    $save_usercreate{'cancreate'}{'author'} = $cancreate{'author'};
+    $save_usercreate{'cancreate'}{'requestcrs'} = $cancreate{'requestcrs'};
+    $save_usercreate{'id_rule'} = \@id_rule;
+    $save_usercreate{'username_rule'} = \@username_rule,
+    $save_usercreate{'authtypes'} = \%authhash;
+
     my %usercreation_hash =  (
-            usercreation => {
-                              cancreate     => \%cancreate,
-                              username_rule => \@username_rule,
-                              id_rule       => \@id_rule,
-                              email_rule    => \@email_rule,
-                              authtypes     => \%authhash,
-                            }
-            );
+        usercreation     => \%save_usercreate,
+    );
 
     my $putresult = &Apache::lonnet::put_dom('configuration',\%usercreation_hash,
                                              $dom);
 
+    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 = $lt{$type}.', ';
+                    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>';
+                }
+            }
+            if (ref($changes{'username_rule'}) eq 'ARRAY') {
+                my ($rules,$ruleorder) = 
+                    &Apache::lonnet::inst_userrules($dom,'username');
+                my $chgtext = '<ul>';
+                foreach my $type (@username_rule) {
+                    if (ref($rules->{$type}) eq 'HASH') {
+                        $chgtext .= '<li>'.$rules->{$type}{'name'}.'</li>';
+                    }
+                }
+                $chgtext .= '</ul>';
+                if (@username_rule > 0) {
+                    $resulttext .= '<li>'.&mt('Usernames with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';     
+                } else {
+                    $resulttext .= '<li>'.&mt('There are now no username formats restricted to verified users in the institutional directory.').'</li>'; 
+                }
+            }
+            if (ref($changes{'id_rule'}) eq 'ARRAY') {
+                my ($idrules,$idruleorder) = 
+                    &Apache::lonnet::inst_userrules($dom,'id');
+                my $chgtext = '<ul>';
+                foreach my $type (@id_rule) {
+                    if (ref($idrules->{$type}) eq 'HASH') {
+                        $chgtext .= '<li>'.$idrules->{$type}{'name'}.'</li>';
+                    }
+                }
+                $chgtext .= '</ul>';
+                if (@id_rule > 0) {
+                    $resulttext .= '<li>'.&mt('IDs with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';
+                } else {
+                    $resulttext .= '<li>'.&mt('There are now no ID formats restricted to verified users in the institutional directory.').'</li>';
+                }
+            }
+            my %authname = &authtype_names();
+            my %context_title = &context_names();
+            if (ref($changes{'authtypes'}) eq 'ARRAY') {
+                my $chgtext = '<ul>';
+                foreach my $type (@{$changes{'authtypes'}}) {
+                    my @allowed;
+                    $chgtext .= '<li><span class="LC_cusr_emph">'.$context_title{$type}.'</span> - '.&mt('assignable authentication types: ');
+                    foreach my $auth (@authtypes) {
+                        if ($authhash{$type}{$auth}) {
+                            push(@allowed,$authname{$auth});
+                        }
+                    }
+                    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;
+                $resulttext .= '</li>';
+            }
+            $resulttext .= '</ul>';
+        } else {
+            $resulttext = &mt('No changes made to user creation settings');
+        }
+    } else {
+        $resulttext = '<span class="LC_error">'.
+            &mt('An error occurred: [_1]',$putresult).'</span>';
+    }
+    if ($warningmsg ne '') {
+        $resulttext .= '<br /><span class="LC_warning">'.$warningmsg.'</span><br />';
+    }
+    return $resulttext;
+}
+
+sub modify_selfcreation {
+    my ($dom,%domconfig) = @_;
+    my ($resulttext,$warningmsg,%curr_usercreation,%curr_usermodify,%changes,%cancreate);
+    my (%save_usercreate,%save_usermodify);
+    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
+    if (ref($types) eq 'ARRAY') {
+        $usertypes->{'default'} = $othertitle;
+        push(@{$types},'default');
+    }
+#
+# Retrieve current domain configuration for self-creation of usernames from $domconfig{'usercreation'}.
+#
+    if (ref($domconfig{'usercreation'}) eq 'HASH') {
+        foreach my $key (keys(%{$domconfig{'usercreation'}})) {
+            if ($key eq 'cancreate') {
+                if (ref($domconfig{'usercreation'}{$key}) eq 'HASH') {
+                    foreach my $item (keys(%{$domconfig{'usercreation'}{$key}})) {
+                        if (($item eq 'selfcreate') || ($item eq 'statustocreate') ||
+                            ($item eq 'captcha') || ($item eq 'recaptchakeys') || 
+                            ($item eq 'emailusername') || ($item eq 'notify')) {
+                            $curr_usercreation{$key}{$item} = $domconfig{'usercreation'}{$key}{$item};
+                        } else {
+                            $save_usercreate{$key}{$item} = $domconfig{'usercreation'}{$key}{$item};
+                        }
+                    }
+                }
+            } elsif ($key eq 'email_rule') {
+                $curr_usercreation{$key} = $domconfig{'usercreation'}{$key};
+            } else {
+                $save_usercreate{$key} = $domconfig{'usercreation'}{$key};
+            }
+        }
+    }
+#
+# Retrieve current domain configuration for self-creation of usernames from $domconfig{'usermodification'}.
+#
+    if (ref($domconfig{'usermodification'}) eq 'HASH') {
+        foreach my $key (keys(%{$domconfig{'usermodification'}})) {
+            if ($key eq 'selfcreate') {
+                $curr_usermodify{$key} = $domconfig{'usermodification'}{$key};
+            } else {
+                $save_usermodify{$key} = $domconfig{'usermodification'}{$key};
+            }
+        }
+    }
+
+    my @contexts = ('selfcreate');
+    @{$cancreate{'selfcreate'}} = ();
+    %{$cancreate{'emailusername'}} = ();
+    @{$cancreate{'statustocreate'}} = ();
     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',
+                             email => 'users who provide a valid e-mail address for use as username (automatic creation)',
+                             emailapproval => 'users who provide a valid e-mail address for use as username (queued for Domain Coordinator review)',
                           );
+#
+# Populate $cancreate{'selfcreate'} array reference with types of user, for which self-creation of user accounts
+# is permitted.
+#
+    foreach my $item ('login','sso','email') {
+        if ($item eq 'email') {
+            if ($env{'form.cancreate_email'} eq 'email') {
+                push(@{$cancreate{'selfcreate'}},'email');
+            } elsif ($env{'form.cancreate_email'} eq 'emailapproval') {
+                push(@{$cancreate{'selfcreate'}},'emailapproval');
+            }
+        } else {
+            if ($env{'form.cancreate_'.$item}) {
+                push(@{$cancreate{'selfcreate'}},$item);
+            }
+        }
+    }
+    my (@email_rule,%userinfo,%savecaptcha);
+    my ($infofields,$infotitles) = &Apache::loncommon::emailusername_info();
+#
+# Populate $cancreate{'emailusername'}{$type} hash ref with information fields (if new user will provide data
+# value set to one), if self-creation with e-mail address permitted, where $type is user type: faculty, staff, student etc.
+#
+    if (($env{'form.cancreate_email'} eq 'email') || ($env{'form.cancreate_email'} eq 'emailapproval')) {
+        push(@contexts,'emailusername');
+        if (ref($types) eq 'ARRAY') {
+            foreach my $type (@{$types}) {
+                if (ref($infofields) eq 'ARRAY') {
+                    foreach my $field (@{$infofields}) {
+                        if ($env{'form.canmodify_emailusername_'.$type.'_'.$field} =~ /^(required|optional)$/) {
+                            $cancreate{'emailusername'}{$type}{$field} = $1;
+                        }
+                    }
+                }
+            }
+        }
+#
+# Populate $cancreate{'notify'} hash ref with names of Domain Coordinators who are to be notified of
+# queued requests for self-creation of account using e-mail address as username
+#
+
+        my @approvalnotify = &Apache::loncommon::get_env_multiple('form.selfcreationnotifyapproval');
+        @approvalnotify = sort(@approvalnotify);
+        $cancreate{'notify'}{'approval'} = join(',',@approvalnotify);
+        if (ref($curr_usercreation{'cancreate'}) eq 'HASH') {
+            if (ref($curr_usercreation{'cancreate'}{'notify'}) eq 'HASH') {
+                if ($curr_usercreation{'cancreate'}{'notify'}{'approval'} ne $cancreate{'notify'}{'approval'}) {
+                    push(@{$changes{'cancreate'}},'notify');
+                }
+            } else {
+                if ($cancreate{'notify'}{'approval'}) {
+                    push(@{$changes{'cancreate'}},'notify');
+                }
+            }
+        } elsif ($cancreate{'notify'}{'approval'}) {
+            push(@{$changes{'cancreate'}},'notify');
+        }
+
+#
+# Retrieve rules (if any) governing types of e-mail address which may be used as a username
+#
+        @email_rule = &Apache::loncommon::get_env_multiple('form.email_rule');
+        &process_captcha('cancreate',\%changes,\%savecaptcha,$curr_usercreation{'cancreate'});
+        if (ref($curr_usercreation{'email_rule'}) eq 'ARRAY') {
+            if (@{$curr_usercreation{'email_rule'}} > 0) {
+                foreach my $type (@{$curr_usercreation{'email_rule'}}) {
+                    if (!grep(/^\Q$type\E$/,@email_rule)) {
+                        push(@{$changes{'email_rule'}},$type);
+                    }
+                }
+            }
+            if (@email_rule > 0) {
+                foreach my $type (@email_rule) {
+                    if (!grep(/^\Q$type\E$/,@{$curr_usercreation{'email_rule'}})) {
+                        push(@{$changes{'email_rule'}},$type);
+                    }
+                }
+            }
+        } elsif (@email_rule > 0) {
+            push(@{$changes{'email_rule'}},@email_rule);
+        }
+    }
+#  
+# Check if domain default is set appropriately, if selef-creation of accounts is to be available for
+# institutional log-in.
+#
+    if (grep(/^login$/,@{$cancreate{'selfcreate'}})) {
+        my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+        if (!((($domdefaults{'auth_def'} =~/^krb/) && ($domdefaults{'auth_arg_def'} ne '')) || 
+               ($domdefaults{'auth_def'} eq 'localauth'))) {
+            $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.');
+        }
+    }
+    my @fields = ('lastname','firstname','middlename','generation',
+                  'permanentemail','id');
+    my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
+#
+# Where usernames may created for institutional log-in and/or institutional single sign on:
+# (a) populate $cancreate{'statustocreate'} array reference with institutional status types who
+# may self-create accounts 
+# (b) populate $save_usermodify{'selfcreate'} hash reference with status types, and information fields
+# which the user may supply, if institutional data is unavailable.
+#
+    if (($env{'form.cancreate_login'}) || ($env{'form.cancreate_sso'})) {
+        if (ref($types) eq 'ARRAY') {
+            if (@{$types} > 1) {
+                @{$cancreate{'statustocreate'}} = &Apache::loncommon::get_env_multiple('form.statustocreate');
+                push(@contexts,'statustocreate');
+            } else {
+                undef($cancreate{'statustocreate'});
+            } 
+            foreach my $type (@{$types}) {
+                my @modifiable =  &Apache::loncommon::get_env_multiple('form.canmodify_'.$type);
+                foreach my $field (@fields) {
+                    if (grep(/^\Q$field\E$/,@modifiable)) {
+                        $save_usermodify{'selfcreate'}{$type}{$field} = 1;
+                    } else {
+                        $save_usermodify{'selfcreate'}{$type}{$field} = 0;
+                    }
+                }
+            }
+            if (ref($curr_usermodify{'selfcreate'}) eq 'HASH') {
+                foreach my $type (@{$types}) {
+                    if (ref($curr_usermodify{'selfcreate'}{$type}) eq 'HASH') {
+                        foreach my $field (@fields) {
+                            if ($save_usermodify{'selfcreate'}{$type}{$field} ne
+                                $curr_usermodify{'selfcreate'}{$type}{$field}) {
+                                push(@{$changes{'selfcreate'}},$type);
+                                last;
+                            }
+                        }
+                    }
+                }
+            } else {
+                foreach my $type (@{$types}) {
+                    push(@{$changes{'selfcreate'}},$type);
+                }
+            }
+        }
+    }
+    foreach my $item (@contexts) {
+        if (ref($curr_usercreation{'cancreate'}{$item}) eq 'ARRAY') {
+            foreach my $curr (@{$curr_usercreation{'cancreate'}{$item}}) {
+                if (ref($cancreate{$item}) eq 'ARRAY') {
+                    if (!grep(/^$curr$/,@{$cancreate{$item}})) {
+                        if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                            push(@{$changes{'cancreate'}},$item);
+                        }
+                    }
+                }
+            }
+            if (ref($cancreate{$item}) eq 'ARRAY') {
+                foreach my $type (@{$cancreate{$item}}) {
+                    if (!grep(/^$type$/,@{$curr_usercreation{'cancreate'}{$item}})) {
+                        if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                            push(@{$changes{'cancreate'}},$item);
+                        }
+                    }
+                }
+            }
+        } elsif (ref($curr_usercreation{'cancreate'}{$item}) eq 'HASH') {
+            if (ref($cancreate{$item}) eq 'HASH') {
+                foreach my $curr (keys(%{$curr_usercreation{'cancreate'}{$item}})) {
+                    if (ref($curr_usercreation{'cancreate'}{$item}{$curr}) eq 'HASH') {
+                        foreach my $field (keys(%{$curr_usercreation{'cancreate'}{$item}{$curr}})) {
+                            unless ($curr_usercreation{'cancreate'}{$item}{$curr}{$field} eq $cancreate{$item}{$curr}{$field}) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        }
+                    } else {
+                        if (!$cancreate{$item}{$curr}) {
+                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                push(@{$changes{'cancreate'}},$item);
+                            }
+                        }
+                    }
+                }
+                foreach my $field (keys(%{$cancreate{$item}})) {
+                    if (ref($cancreate{$item}{$field}) eq 'HASH') {
+                        foreach my $inner (keys(%{$cancreate{$item}{$field}})) {
+                            if (ref($curr_usercreation{'cancreate'}{$item}{$field}) eq 'HASH') {
+                                unless ($curr_usercreation{'cancreate'}{$item}{$field}{$inner} eq $cancreate{$item}{$field}{$inner}) {
+                                    if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                        push(@{$changes{'cancreate'}},$item);
+                                    }
+                                }
+                            } else {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                            }
+                        }
+                    } else {
+                        if (!$curr_usercreation{'cancreate'}{$item}{$field}) {
+                            if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                push(@{$changes{'cancreate'}},$item);
+                            }
+                        }
+                    }
+                }
+            }
+        } elsif ($curr_usercreation{'cancreate'}{$item}) {
+            if (ref($cancreate{$item}) eq 'ARRAY') {
+                if (!grep(/^\Q$curr_usercreation{'cancreate'}{$item}\E$/,@{$cancreate{$item}})) {
+                    if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                        push(@{$changes{'cancreate'}},$item);
+                    }
+                }
+            } elsif (ref($cancreate{$item}) eq 'HASH') {
+                if (!$cancreate{$item}{$curr_usercreation{'cancreate'}{$item}}) {
+                    if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                        push(@{$changes{'cancreate'}},$item);
+                    }
+                }
+            }
+        } elsif ($item eq 'emailusername') {
+            if (ref($cancreate{$item}) eq 'HASH') {
+                foreach my $type (keys(%{$cancreate{$item}})) {
+                    if (ref($cancreate{$item}{$type}) eq 'HASH') {
+                        foreach my $field (keys(%{$cancreate{$item}{$type}})) {
+                            if ($cancreate{$item}{$type}{$field}) {
+                                if (!grep(/^$item$/,@{$changes{'cancreate'}})) {
+                                    push(@{$changes{'cancreate'}},$item);
+                                }
+                                last;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+#
+# Populate %save_usercreate hash with updates to self-creation configuration.
+#
+    $save_usercreate{'cancreate'}{'captcha'} = $savecaptcha{'captcha'};
+    $save_usercreate{'cancreate'}{'recaptchakeys'} = $savecaptcha{'recaptchakeys'};
+    $save_usercreate{'cancreate'}{'selfcreate'} = $cancreate{'selfcreate'};
+    if (ref($cancreate{'notify'}) eq 'HASH') {
+        $save_usercreate{'cancreate'}{'notify'} = $cancreate{'notify'};
+    }
+    if (ref($cancreate{'statustocreate'}) eq 'ARRAY') {
+        $save_usercreate{'cancreate'}{'statustocreate'} = $cancreate{'statustocreate'};
+    }
+    $save_usercreate{'cancreate'}{'emailusername'} = $cancreate{'emailusername'};
+    $save_usercreate{'emailrule'} = \@email_rule;
+
+    my %userconfig_hash = (
+            usercreation     => \%save_usercreate,
+            usermodification => \%save_usermodify,
+    );
+    my $putresult = &Apache::lonnet::put_dom('configuration',\%userconfig_hash,
+                                             $dom);
+#
+# Accumulate details of changes to domain cofiguration for self-creation of usernames in $resulttext
+#
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             $resulttext = &mt('Changes made:').'<ul>';
             if (ref($changes{'cancreate'}) eq 'ARRAY') {
-                my %lt = &usercreation_types();
+                my %lt = &selfcreation_types();
                 foreach my $type (@{$changes{'cancreate'}}) {
                     my $chgtext;
-                    unless (($type eq 'statustocreate') || ($type eq 'captcha') || ($type eq 'recaptchakeys')) {
-                        $chgtext = $lt{$type}.', ';
-                    }
                     if ($type eq 'selfcreate') {
                         if (@{$cancreate{$type}} == 0) {
-                            $chgtext .= &mt('creation of a new user account is not permitted.');
+                            $chgtext .= &mt('Self creation of a new user account is not permitted.');
                         } else {
-                            $chgtext .= &mt('creation of a new account is permitted for:').'<ul>';
+                            $chgtext .= &mt('Self-creation of a new account is permitted for:').
+                                        '<ul>';
                             foreach my $case (@{$cancreate{$type}}) {
                                 $chgtext .= '<li>'.$selfcreatetypes{$case}.'</li>';
                             }
@@ -7096,7 +8033,10 @@ sub modify_usercreation {
                                 if (grep(/^(login|sso)$/,@{$cancreate{$type}})) {
                                     if (ref($cancreate{'statustocreate'}) eq 'ARRAY') {
                                         if (@{$cancreate{'statustocreate'}} == 0) {
-                                            $chgtext .= '<br /><span class="LC_warning">'.&mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").'</span>';
+                                            $chgtext .= '<br />'.
+                                                        '<span class="LC_warning">'.
+                                                        &mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").
+                                                        '</span>';
                                         }
                                     }
                                 }
@@ -7107,11 +8047,13 @@ sub modify_usercreation {
                             (ref($cancreate{'statustocreate'}) eq 'ARRAY')) {
                             if (@{$cancreate{'selfcreate'}} > 0) {
                                 if (@{$cancreate{'statustocreate'}} == 0) {
-
                                     $chgtext .= &mt("Institutional affiliations permitted to create accounts set to 'None'.");
                                     if (!grep(/^email$/,@{$cancreate{'selfcreate'}})) {
-                                        $chgtext .= '<br /><span class="LC_warning">'.&mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").'</span>';
-                                    } 
+                                        $chgtext .= '<br />'.
+                                                    '<span class="LC_warning">'.
+                                                    &mt("However, no institutional affiliations (including 'other') are currently permitted to create accounts.").
+                                                    '</span>';
+                                    }
                                 } elsif (ref($usertypes) eq 'HASH') {
                                     if (grep(/^(login|sso)$/,@{$cancreate{'selfcreate'}})) {
                                         $chgtext .= &mt('Creation of a new account for an institutional user is restricted to the following institutional affiliation(s):');
@@ -7128,7 +8070,9 @@ sub modify_usercreation {
                                     }
                                     $chgtext .= '</ul>';
                                     if (!grep(/^(login|sso)$/,@{$cancreate{'selfcreate'}})) {
-                                        $chgtext .= '<br /><span class="LC_warning">'.&mt('However, users authenticated by institutional login/single sign on are not currently permitted to create accounts.').'</span>';
+                                        $chgtext .= '<br /><span class="LC_warning">'.
+                                                    &mt('However, users authenticated by institutional login/single sign on are not currently permitted to create accounts.').
+                                                    '</span>';
                                     }
                                 }
                             } else {
@@ -7140,21 +8084,21 @@ sub modify_usercreation {
                             }
                         }
                     } elsif ($type eq 'captcha') {
-                        if ($cancreate{$type} eq 'notused') {
+                        if ($savecaptcha{$type} eq 'notused') {
                             $chgtext .= &mt('No CAPTCHA validation in use for self-creation screen.');
                         } else {
                             my %captchas = &captcha_phrases();
-                            if ($captchas{$cancreate{$type}}) {
-                                $chgtext .= &mt("Validation for self-creation screen set to $captchas{$cancreate{$type}}.");
+                            if ($captchas{$savecaptcha{$type}}) {
+                                $chgtext .= &mt("Validation for self-creation screen set to $captchas{$savecaptcha{$type}}.");
                             } else {
-                                $chgtext .= &mt('Validation for self-creation screen set to unknown type.'); 
+                                $chgtext .= &mt('Validation for self-creation screen set to unknown type.');
                             }
                         }
                     } elsif ($type eq 'recaptchakeys') {
                         my ($privkey,$pubkey);
-                        if (ref($cancreate{$type}) eq 'HASH') {
-                            $pubkey = $cancreate{$type}{'public'};
-                            $privkey = $cancreate{$type}{'private'};
+                        if (ref($savecaptcha{$type}) eq 'HASH') {
+                            $pubkey = $savecaptcha{$type}{'public'};
+                            $privkey = $savecaptcha{$type}{'private'};
                         }
                         $chgtext .= &mt('ReCAPTCHA keys changes').'<ul>';
                         if (!$pubkey) {
@@ -7168,51 +8112,41 @@ sub modify_usercreation {
                             $chgtext .= '<li>'.&mt('Private key set to [_1]',$pubkey).'</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') {
-                            $chgtext .= &mt('creation of new users is only permitted for non-institutional usernames.');
+                    } elsif ($type eq 'emailusername') {
+                        if (ref($cancreate{'emailusername'}) eq 'HASH') {
+                            if (ref($types) eq 'ARRAY') {
+                                foreach my $type (@{$types}) {
+                                    if (ref($cancreate{'emailusername'}{$type}) eq 'HASH') {
+                                        if (keys(%{$cancreate{'emailusername'}{$type}}) > 0) {
+                                            $chgtext .= &mt('When self-creating account with e-mail as username, the following information will be provided by [_1]:',$usertypes->{$type}).
+                                                    '<ul>';
+                                            foreach my $field (@{$infofields}) {
+                                                if ($cancreate{'emailusername'}{$type}{$field}) {
+                                                    $chgtext .= '<li>'.$infotitles->{$field}.'</li>';
+                                                }
+                                            }
+                                        }
+                                        $chgtext .= '</ul>';
+                                    } else {
+                                        $chgtext .= &mt('When self creating account with e-mail as username, no information besides e-mail address will be provided by [_1].',$usertypes->{$type}).'<br />';
+                                    }
+                                }
+                            }
+                        }
+                    } elsif ($type eq 'notify') {
+                        $chgtext = &mt('No Domain Coordinators will receive notification of username requests requiring approval.');
+                        if (ref($changes{'cancreate'}) eq 'ARRAY') {
+                            if ((grep(/^notify$/,@{$changes{'cancreate'}})) && (ref($cancreate{'notify'}) eq 'HASH')) {
+                                if ($cancreate{'notify'}{'approval'}) {
+                                    $chgtext = &mt('Notification of username requests requiring approval will be sent to: ').$cancreate{'notify'}{'approval'};
+                                }
+                            }
                         }
                     }
-                    $resulttext .= '<li>'.$chgtext.'</li>';
-                }
-            }
-            if (ref($changes{'username_rule'}) eq 'ARRAY') {
-                my ($rules,$ruleorder) = 
-                    &Apache::lonnet::inst_userrules($dom,'username');
-                my $chgtext = '<ul>';
-                foreach my $type (@username_rule) {
-                    if (ref($rules->{$type}) eq 'HASH') {
-                        $chgtext .= '<li>'.$rules->{$type}{'name'}.'</li>';
-                    }
-                }
-                $chgtext .= '</ul>';
-                if (@username_rule > 0) {
-                    $resulttext .= '<li>'.&mt('Usernames with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';     
-                } else {
-                    $resulttext .= '<li>'.&mt('There are now no username formats restricted to verified users in the institutional directory.').'</li>'; 
-                }
-            }
-            if (ref($changes{'id_rule'}) eq 'ARRAY') {
-                my ($idrules,$idruleorder) = 
-                    &Apache::lonnet::inst_userrules($dom,'id');
-                my $chgtext = '<ul>';
-                foreach my $type (@id_rule) {
-                    if (ref($idrules->{$type}) eq 'HASH') {
-                        $chgtext .= '<li>'.$idrules->{$type}{'name'}.'</li>';
+                    if ($chgtext) {
+                        $resulttext .= '<li>'.$chgtext.'</li>';
                     }
                 }
-                $chgtext .= '</ul>';
-                if (@id_rule > 0) {
-                    $resulttext .= '<li>'.&mt('IDs with the following formats are restricted to verified users in the institutional directory: ').$chgtext.'</li>';
-                } else {
-                    $resulttext .= '<li>'.&mt('There are now no ID formats restricted to verified users in the institutional directory.').'</li>';
-                }
             }
             if (ref($changes{'email_rule'}) eq 'ARRAY') {
                 my ($emailrules,$emailruleorder) =
@@ -7225,37 +8159,48 @@ sub modify_usercreation {
                 }
                 $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>';
+                    $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>';
+                    $resulttext .= '<li>'.
+                                   &mt('There are now no restrictions on e-mail addresses which may be used as a username when self-enrolling.').
+                                   '</li>';
                 }
             }
-
-            my %authname = &authtype_names();
-            my %context_title = &context_names();
-            if (ref($changes{'authtypes'}) eq 'ARRAY') {
-                my $chgtext = '<ul>';
-                foreach my $type (@{$changes{'authtypes'}}) {
-                    my @allowed;
-                    $chgtext .= '<li><span class="LC_cusr_emph">'.$context_title{$type}.'</span> - '.&mt('assignable authentication types: ');
-                    foreach my $auth (@authtypes) {
-                        if ($authhash{$type}{$auth}) {
-                            push(@allowed,$authname{$auth});
+            if (ref($changes{'selfcreate'}) eq 'ARRAY') {
+                $resulttext .= '<li>'.&mt('When self-creating institutional account:').'<ul>';
+                my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
+                foreach my $type (@{$changes{'selfcreate'}}) {
+                    my $typename = $type;
+                    if (ref($usertypes) eq 'HASH') {
+                        if ($usertypes->{$type} ne '') {
+                            $typename = $usertypes->{$type};
                         }
                     }
-                    if (@allowed > 0) {
-                        $chgtext .= join(', ',@allowed).'</li>';
+                    my @modifiable;
+                    $resulttext .= '<li>'.
+                                    &mt('Self-creation of account by users with status: [_1]',
+                                        '<span class="LC_cusr_emph">'.$typename.'</span>').
+                                    ' - '.&mt('modifiable fields (if institutional data blank): ');
+                    foreach my $field (@fields) {
+                        if ($save_usermodify{'selfcreate'}{$type}{$field}) {
+                            push(@modifiable,'<b>'.$fieldtitles{$field}.'</b>');
+                        }
+                    }
+                    if (@modifiable > 0) {
+                        $resulttext .= join(', ',@modifiable);
                     } else {
-                        $chgtext .= &mt('none').'</li>';
+                        $resulttext .= &mt('none');
                     }
+                    $resulttext .= '</li>';
                 }
-                $chgtext .= '</ul>';
-                $resulttext .= '<li>'.&mt('Authentication types available for assignment to new users').'<br />'.$chgtext;
-                $resulttext .= '</li>';
+                $resulttext .= '</ul></li>';
             }
             $resulttext .= '</ul>';
         } else {
-            $resulttext = &mt('No changes made to user creation settings');
+            $resulttext = &mt('No changes made to self-creation settings');
         }
     } else {
         $resulttext = '<span class="LC_error">'.
@@ -7275,7 +8220,7 @@ sub process_captcha {
         $newsettings->{'captcha'} = 'original';
     }
     if ($current->{'captcha'} ne $newsettings->{'captcha'}) {
-        if ($container eq 'cancreate') { 
+        if ($container eq 'cancreate') {
             if (ref($changes->{'cancreate'}) eq 'ARRAY') {
                 push(@{$changes->{'cancreate'}},'captcha');
             } elsif (!defined($changes->{'cancreate'})) {
@@ -7314,7 +8259,7 @@ sub process_captcha {
                 $changes->{'cancreate'} = ['recaptchakeys'];
             }
         } else {
-            $changes->{'recaptchakeys'} = 1; 
+            $changes->{'recaptchakeys'} = 1;
         }
     }
     return;
@@ -7322,17 +8267,20 @@ sub process_captcha {
 
 sub modify_usermodification {
     my ($dom,%domconfig) = @_;
-    my ($resulttext,%curr_usermodification,%changes);
+    my ($resulttext,%curr_usermodification,%changes,%modifyhash);
     if (ref($domconfig{'usermodification'}) eq 'HASH') {
         foreach my $key (keys(%{$domconfig{'usermodification'}})) {
-            $curr_usermodification{$key} = $domconfig{'usermodification'}{$key};
+            if ($key eq 'selfcreate') {
+                $modifyhash{$key} = $domconfig{'usermodification'}{$key};
+            } else {  
+                $curr_usermodification{$key} = $domconfig{'usermodification'}{$key};
+            }
         }
     }
-    my @contexts = ('author','course','selfcreate');
+    my @contexts = ('author','course');
     my %context_title = (
                            author => 'In author context',
                            course => 'In course context',
-                           selfcreate => 'When self creating account', 
                         );
     my @fields = ('lastname','firstname','middlename','generation',
                   'permanentemail','id');
@@ -7340,14 +8288,7 @@ sub modify_usermodification {
                   author => ['ca','aa'],
                   course => ['st','ep','ta','in','cr'],
                 );
-    my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
-    if (ref($types) eq 'ARRAY') {
-        push(@{$types},'default');
-        $usertypes->{'default'} = $othertitle;
-    }
-    $roles{'selfcreate'} = $types;  
     my %fieldtitles = &Apache::loncommon::personal_data_fieldtitles();
-    my %modifyhash;
     foreach my $context (@contexts) {
         foreach my $role (@{$roles{$context}}) {
             my @modifiable =  &Apache::loncommon::get_env_multiple('form.canmodify_'.$role);
@@ -7393,26 +8334,13 @@ sub modify_usermodification {
                     if (ref($changes{$context}) eq 'ARRAY') {
                         foreach my $role (@{$changes{$context}}) {
                             my $rolename;
-                            if ($context eq 'selfcreate') {
-                                $rolename = $role;
-                                if (ref($usertypes) eq 'HASH') {
-                                    if ($usertypes->{$role} ne '') {
-                                        $rolename = $usertypes->{$role};
-                                    }
-                                }
+                            if ($role eq 'cr') {
+                                $rolename = &mt('Custom');
                             } else {
-                                if ($role eq 'cr') {
-                                    $rolename = &mt('Custom');
-                                } else {
-                                    $rolename = &Apache::lonnet::plaintext($role);
-                                }
+                                $rolename = &Apache::lonnet::plaintext($role);
                             }
                             my @modifiable;
-                            if ($context eq 'selfcreate') {
-                                $resulttext .= '<li><span class="LC_cusr_emph">'.&mt('Self-creation of account by users with status: [_1]',$rolename).'</span> - '.&mt('modifiable fields (if institutional data blank): ');
-                            } else {
-                                $resulttext .= '<li><span class="LC_cusr_emph">'.&mt('Target user with [_1] role',$rolename).'</span> - '.&mt('modifiable fields: ');
-                            }
+                            $resulttext .= '<li><span class="LC_cusr_emph">'.&mt('Target user with [_1] role',$rolename).'</span> - '.&mt('modifiable fields: ');
                             foreach my $field (@fields) {
                                 if ($modifyhash{$context}{$role}{$field}) {
                                     push(@modifiable,$fieldtitles{$field});
@@ -7441,9 +8369,9 @@ sub modify_usermodification {
 }
 
 sub modify_defaults {
-    my ($dom,$r,%domconfig) = @_;
+    my ($dom,$lastactref,%domconfig) = @_;
     my ($resulttext,$mailmsgtxt,%newvalues,%changes,@errors);
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
     my @items = ('auth_def','auth_arg_def','lang_def','timezone_def','datelocale_def','portal_def');
     my @authtypes = ('internal','krb4','krb5','localauth');
     foreach my $item (@items) {
@@ -7503,7 +8431,7 @@ sub modify_defaults {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             $resulttext = &mt('Changes made:').'<ul>';
-            my $version = $r->dir_config('lonVersion');
+            my $version = &Apache::lonnet::get_server_loncaparev($dom);
             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};
@@ -7526,6 +8454,9 @@ sub modify_defaults {
             $mailmsgtext .= "\n";
             my $cachetime = 24*60*60;
             &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domdefaults'} = 1;
+            }
             if ($changes{'auth_def'} || $changes{'auth_arg_def'} || $changes{'lang_def'} || $changes{'datelocale_def'}) {
                 my $notify = 1;
                 if (ref($domconfig{'contacts'}) eq 'HASH') {
@@ -7618,7 +8549,9 @@ sub modify_scantron {
                 }
                 $resulttext .= '</ul>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
-                $$lastactref = 'update';
+                if (ref($lastactref) eq 'HASH') {
+                    $lastactref->{'domainconfig'} = 1;
+                }
             } else {
                 $resulttext = &mt('No changes made to bubblesheet format file');
             }
@@ -8009,7 +8942,7 @@ sub modify_helpsettings {
                     $changes{$item} = 1;
                 }
             }
-            if (($env{'form.'.$item} eq '0') || ($env{'form.'.$item} eq '1')) { 
+            if (($env{'form.'.$item} eq '0') || ($env{'form.'.$item} eq '1')) {
                 $helphash{'helpsettings'}{$item} = $env{'form.'.$item};
             }
         }
@@ -8042,13 +8975,13 @@ sub modify_helpsettings {
 }
 
 sub modify_coursedefaults {
-    my ($dom,%domconfig) = @_;
+    my ($dom,$lastactref,%domconfig) = @_;
     my ($resulttext,$errors,%changes,%defaultshash);
     my %defaultchecked = ('canuse_pdfforms' => 'off');
     my @toggles = ('canuse_pdfforms');
     my @numbers = ('anonsurvey_threshold','uploadquota_official','uploadquota_unofficial',
-                   'uploadquota_community');
-    my @types = ('official','unofficial','community');
+                   'uploadquota_community','uploadquota_textbook');
+    my @types = ('official','unofficial','community','textbook');
     my %staticdefaults = (
                            anonsurvey_threshold => 10,
                            uploadquota          => 500,
@@ -8113,30 +9046,34 @@ sub modify_coursedefaults {
             }
         }
         my $officialcreds = $env{'form.official_credits'};
-        $officialcreds =~ s/^[^\d\.]//g;
+        $officialcreds =~ s/[^\d.]+//g;
         my $unofficialcreds = $env{'form.unofficial_credits'};
-        $unofficialcreds =~ s/^[^\d\.]//g;
+        $unofficialcreds =~ s/[^\d.]+//g;
+        my $textbookcreds = $env{'form.textbook_credits'};
+        $textbookcreds =~ s/[^\d.]+//g;
         if (ref($domconfig{'coursedefaults'}{'coursecredits'} ne 'HASH') &&
                 ($env{'form.coursecredits'} eq '1')) {
                 $changes{'coursecredits'} = 1;
         } else {
             if (($domconfig{'coursedefaults'}{'coursecredits'}{'official'} ne $officialcreds)  ||
-                ($domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'} ne $unofficialcreds)) {
+                ($domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'} ne $unofficialcreds) ||
+                ($domconfig{'coursedefaults'}{'coursecredits'}{'textbook'} ne $textbookcreds)) {
                 $changes{'coursecredits'} = 1;
             }
         }
         $defaultshash{'coursedefaults'}{'coursecredits'} = {
             official   => $officialcreds,
             unofficial => $unofficialcreds,
+            textbook   => $textbookcreds,
         }
     }
     my $putresult = &Apache::lonnet::put_dom('configuration',\%defaultshash,
                                              $dom);
     if ($putresult eq 'ok') {
-        my %domdefaults;
         if (keys(%changes) > 0) {
-            if (($changes{'canuse_pdfforms'}) || ($changes{'coursecredits'}) || ($changes{'uploadquota'})) {
-                %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+            my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+            if (($changes{'canuse_pdfforms'}) || ($changes{'coursecredits'}) || 
+                ($changes{'uploadquota'})) {
                 if ($changes{'canuse_pdfforms'}) {
                     $domdefaults{'canuse_pdfforms'}=$defaultshash{'coursedefaults'}{'canuse_pdfforms'};
                 }
@@ -8146,6 +9083,8 @@ sub modify_coursedefaults {
                             $defaultshash{'coursedefaults'}{'coursecredits'}{'official'};
                         $domdefaults{'unofficialcredits'} =
                             $defaultshash{'coursedefaults'}{'coursecredits'}{'unofficial'};
+                        $domdefaults{'textbookcredits'} =
+                            $domdefaults{'coursedefaults'}{'coursecredits'}{'textbook'};
                     }
                 }
                 if ($changes{'uploadquota'}) {
@@ -8157,6 +9096,9 @@ sub modify_coursedefaults {
                 }
                 my $cachetime = 24*60*60;
                 &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
+                if (ref($lastactref) eq 'HASH') {
+                    $lastactref->{'domdefaults'} = 1;
+                }
             }
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (sort(keys(%changes))) {
@@ -8173,6 +9115,8 @@ sub modify_coursedefaults {
                         $resulttext .= '<li>'.&mt('Default quota for content uploaded to a course/community via Course Editor set as follows:').'<ul>'.
                                        '<li>'.&mt('Official courses: [_1] MB','<b>'.$defaultshash{'coursedefaults'}{'uploadquota'}{'official'}.'</b>').'</li>'.
                                        '<li>'.&mt('Unofficial courses: [_1] MB','<b>'.$defaultshash{'coursedefaults'}{'uploadquota'}{'unofficial'}.'</b>').'</li>'.
+                                       '<li>'.&mt('Textbook courses: [_1] MB','<b>'.$defaultshash{'coursedefaults'}{'uploadquota'}{'textbook'}.'</b>').'</li>'.
+
                                        '<li>'.&mt('Communities: [_1] MB','<b>'.$defaultshash{'coursedefaults'}{'uploadquota'}{'community'}.'</b>').'</li>'.
                                        '</ul>'.
                                        '</li>';
@@ -8182,12 +9126,14 @@ sub modify_coursedefaults {
                 } elsif ($item eq 'coursecredits') {
                     if (ref($defaultshash{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
                         if (($domdefaults{'officialcredits'} eq '') &&
-                            ($domdefaults{'unofficialcredits'} eq '')) {
+                            ($domdefaults{'unofficialcredits'} eq '') &&
+                            ($domdefaults{'textbookcredits'} eq '')) {
                             $resulttext .= '<li>'.&mt('Student credits not in use for courses in this domain').'</li>';
                         } else {
                             $resulttext .= '<li>'.&mt('Student credits can be set per course by a Domain Coordinator, with the following defaults applying:').'<ul>'.
                                            '<li>'.&mt('Official courses: [_1]',$defaultshash{'coursedefaults'}{'coursecredits'}{'official'}).'</li>'.
                                            '<li>'.&mt('Unofficial courses: [_1]',$defaultshash{'coursedefaults'}{'coursecredits'}{'unofficial'}).'</li>'.
+                                           '<li>'.&mt('Textbook courses: [_1]',$defaultshash{'coursedefaults'}{'coursecredits'}{'textbook'}).'</li>'.
                                            '</ul>'.
                                            '</li>';
                         }
@@ -8208,7 +9154,7 @@ sub modify_coursedefaults {
 }
 
 sub modify_usersessions {
-    my ($dom,%domconfig) = @_;
+    my ($dom,$lastactref,%domconfig) = @_;
     my @hostingtypes = ('version','excludedomain','includedomain');
     my @offloadtypes = ('primary','default');
     my %types = (
@@ -8225,7 +9171,7 @@ sub modify_usersessions {
     foreach my $prefix (@prefixes) {
         $defaultshash{'usersessions'}{$prefix} = {};
     }
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
     my $resulttext;
     my %iphost = &Apache::lonnet::get_iphost();
     foreach my $prefix (@prefixes) {
@@ -8401,6 +9347,9 @@ sub modify_usersessions {
             }
             my $cachetime = 24*60*60;
             &Apache::lonnet::do_cache_new('domdefaults',$dom,\%domdefaults,$cachetime);
+            if (ref($lastactref) eq 'HASH') {
+                $lastactref->{'domdefaults'} = 1;
+            }
             if (keys(%changes) > 0) {
                 my %lt = &usersession_titles();
                 $resulttext = &mt('Changes made:').'<ul>';
@@ -8412,7 +9361,8 @@ sub modify_usersessions {
                                 foreach my $lonhost (sort(keys(%{$changes{$prefix}}))) {
                                     $resulttext .= '<li><b>'.$lonhost.'</b> ';
                                     my $lonhostdom = &Apache::lonnet::host_domain($lonhost);
-                                    &Apache::lonnet::remote_devalidate_cache($lonhost,'spares',$lonhostdom);
+                                    my $cachekey = &escape('spares').':'.&escape($lonhostdom);
+                                    &Apache::lonnet::remote_devalidate_cache($lonhost,[$cachekey]);
                                     if (ref($changes{$prefix}{$lonhost}) eq 'HASH') {
                                         foreach my $type (@{$types{$prefix}}) {
                                             if ($changes{$prefix}{$lonhost}{$type}) {
@@ -8502,7 +9452,7 @@ sub modify_loadbalancing {
         if ($balancer eq '') {
             next;
         }
-        if (!exists($servers{$balancer})) { 
+        if (!exists($servers{$balancer})) {
             if (exists($currbalancer{$balancer})) {
                 push(@{$changes{'delete'}},$balancer);
             }
@@ -8553,14 +9503,14 @@ sub modify_loadbalancing {
             }
         } else {
             if (ref($defaultshash{'loadbalancing'}{$balancer}) eq 'HASH') {
-                foreach my $sparetype (@sparestypes) { 
+                foreach my $sparetype (@sparestypes) {
                     if (ref($defaultshash{'loadbalancing'}{$balancer}{'targets'}{$sparetype}) eq 'ARRAY') {
                         if (@{$defaultshash{'loadbalancing'}{$balancer}{'targets'}{$sparetype}} > 0) {
                             $changes{'curr'}{$balancer}{'targets'} = 1;
                         }
                     }
                 }
-            }  
+            }
         }
         my $ishomedom;
         if (&Apache::lonnet::host_domain($balancer) eq $dom) {
@@ -8569,7 +9519,7 @@ sub modify_loadbalancing {
         if (ref($alltypes) eq 'ARRAY') {
             foreach my $type (@{$alltypes}) {
                 my $rule;
-                unless ((($type eq '_LC_external') || ($type eq '_LC_internetdom')) && 
+                unless ((($type eq '_LC_external') || ($type eq '_LC_internetdom')) &&
                          (!$ishomedom)) {
                     $rule = $env{'form.loadbalancing_rules_'.$i.'_'.$type};
                 }
@@ -8594,17 +9544,17 @@ sub modify_loadbalancing {
         }
         my $putresult = &Apache::lonnet::put_dom('configuration',
                                                  \%defaultshash,$dom);
- 
         if ($putresult eq 'ok') {
             if (keys(%changes) > 0) {
                 if (ref($changes{'delete'}) eq 'ARRAY') {
                     foreach my $balancer (sort(@{$changes{'delete'}})) {
                         $resulttext .= '<li>'.&mt('Load Balancing discontinued for: [_1]',$balancer).'</li>';
-                        &Apache::lonnet::remote_devalidate_cache($balancer,'loadbalancing',$dom);
+                        my $cachekey = &escape('loadbalancing').':'.&escape($dom);
+                        &Apache::lonnet::remote_devalidate_cache($balancer,[$cachekey]);
                     }
                 }
                 if (ref($changes{'add'}) eq 'ARRAY') {
-                    foreach my $balancer (sort(@{$changes{'add'}})) {   
+                    foreach my $balancer (sort(@{$changes{'add'}})) {
                         $resulttext .= '<li>'.&mt('Load Balancing enabled for: [_1]',$balancer);
                     }
                 }
@@ -8651,12 +9601,13 @@ sub modify_loadbalancing {
                                         } else {
                                             $balancetext = &mt('offload to [_1]',$defaultshash{'loadbalancing'}{$balancer}{'rules'}{$type});
                                         }
-                                        $resulttext .= '<li>'.&mt('Load Balancer: [_1] -- balancing for [_2] set to - "[_3]"',$balancer,$titles->{$type},$balancetext).'</li>';     
+                                        $resulttext .= '<li>'.&mt('Load Balancer: [_1] -- balancing for [_2] set to - "[_3]"',$balancer,$titles->{$type},$balancetext).'</li>';
                                     }
                                 }
                             }
                         }
-                        &Apache::lonnet::remote_devalidate_cache($balancer,'loadbalancing',$dom);
+                        my $cachekey = &escape('loadbalancing').':'.&escape($dom);
+                        &Apache::lonnet::remote_devalidate_cache($balancer,[$cachekey]);
                     }
                 }
                 if ($resulttext ne '') {
@@ -8744,7 +9695,7 @@ sub active_dc_picker {
         }
     }
     @domcoord = sort(@domcoord);
-    my $numdcs = scalar(@domcoord); 
+    my $numdcs = scalar(@domcoord);
     my $rows = 0;
     my $table;
     if ($numdcs > 1) {
@@ -8788,21 +9739,31 @@ sub active_dc_picker {
                       '<input type="'.$inputtype.'" name="'.$name.'"'.
                       ' value="'.$domcoord[$i].'"'.$check.' />'.$user;
             if ($user ne $dcname.':'.$dcdom) {
-                $table .=  ' ('.$dcname.':'.$dcdom.')'.
-                           '</label></span></td>';
+                $table .=  ' ('.$dcname.':'.$dcdom.')';
             }
+            $table .= '</label></span></td>';
         }
         $table .= '</tr></table>';
     } elsif ($numdcs == 1) {
+        my ($dcname,$dcdom) = split(':',$domcoord[0]);
+        my $user = &Apache::loncommon::plainname($dcname,$dcdom);
         if ($inputtype eq 'radio') {
-            $table .= '<input type="hidden" name="'.$name.'" value="'.$domcoord[0].'" />';
+            $table .= '<input type="hidden" name="'.$name.'" value="'.$domcoord[0].'" />'.$user;
+            if ($user ne $dcname.':'.$dcdom) {
+                $table .=  ' ('.$dcname.':'.$dcdom.')';
+            }
         } else {
             my $check;
             if (exists($currhash{$domcoord[0]})) {
                 $check = ' checked="checked"';
             }
-            $table .= '<input type="checkbox" name="'.$name.'" '.
-                      'value="'.$domcoord[0].'"'.$check.' />';
+            $table .= '<span class="LC_nobreak"><label>'.
+                      '<input type="checkbox" name="'.$name.'" '.
+                      'value="'.$domcoord[0].'"'.$check.' />'.$user;
+            if ($user ne $dcname.':'.$dcdom) {
+                $table .=  ' ('.$dcname.':'.$dcdom.')';
+            }
+            $table .= '</label></span>';
             $rows ++;
         }
     }
@@ -8878,7 +9839,7 @@ sub lonbalance_targets_js {
     }
     &get_loadbalancers_config($servers,\%existing,\%currbalancer,
                               \%currtargets,\%currrules);
-    my $balancers = join("','",sort(keys(%currbalancer))); 
+    my $balancers = join("','",sort(keys(%currbalancer)));
     return <<"END";
 
 <script type="text/javascript">
@@ -8949,7 +9910,6 @@ function showSpares(balancer,ishomedom,b
             } else {
                 document.getElementById('balanceruletitle_'+balnum+'_'+insttypes[k]).style.display='none';
                 document.getElementById('balancerule_'+balnum+'_'+insttypes[k]).style.display='none';
-
             }
         } else {
             document.getElementById('balanceruletitle_'+balnum+'_'+insttypes[k]).style.display='block';
@@ -8961,12 +9921,11 @@ function showSpares(balancer,ishomedom,b
             var item = document.getElementById('loadbalancing_singleserver_'+balnum+'_'+insttypes[k]);
             item.options.length = 0;
             item.options[0] = new Option("","",true,true);
-            var idx = 0;  
+            var idx = 0;
             for (var m=0; m<alltargets.length; m++) {
                 if ((currBalancers.indexOf(alltargets[m]) == -1) && (alltargets[m] != balancer)) {
                     idx ++;
                     item.options[idx] = new Option(alltargets[m],alltargets[m],false,false);
-                    
                 }
             }
         }
@@ -9380,16 +10339,24 @@ sub captcha_phrases {
 }
 
 sub devalidate_remote_domconfs {
-    my ($dom) = @_;
-    my $primary_id = &Apache::lonnet::domain($dom,'primary');
-    my $intdom = &Apache::lonnet::internet_dom($primary_id);
+    my ($dom,$cachekeys) = @_;
+    return unless (ref($cachekeys) eq 'HASH');
     my %servers = &Apache::lonnet::internet_dom_servers($dom);
     my %thismachine;
     map { $thismachine{$_} = 1; } &Apache::lonnet::current_machine_ids();
+    my @posscached = ('domainconfig','domdefaults');
     if (keys(%servers) > 1) {
         foreach my $server (keys(%servers)) {
             next if ($thismachine{$server});
-            &Apache::lonnet::remote_devalidate_cache($server,'domainconfig',$dom);
+            my @cached;
+            foreach my $name (@posscached) {
+                if ($cachekeys->{$name}) {
+                    push(@cached,&escape($name).':'.&escape($dom));
+                }
+            }
+            if (@cached) {
+                &Apache::lonnet::remote_devalidate_cache($server,\@cached);
+            }
         }
     }
     return;