--- loncom/interface/domainprefs.pm	2014/01/06 14:08:31	1.160.6.33
+++ loncom/interface/domainprefs.pm	2013/09/10 17:43:58	1.207
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to set domain-wide configuration settings
 #
-# $Id: domainprefs.pm,v 1.160.6.33 2014/01/06 14:08:31 raeburn Exp $
+# $Id: domainprefs.pm,v 1.207 2013/09/10 17:43:58 bisitz 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
@@ -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, community, and textbook).  In each case the radio buttons 
-allow the selection of one of four values:
+(official, unofficial and community).  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:
@@ -211,13 +211,15 @@ sub handler {
                 'quotas','autoenroll','autoupdate','autocreate',
                 'directorysrch','usercreation','usermodification',
                 'contacts','defaults','scantron','coursecategories',
-                'serverstatuses','requestcourses','coursedefaults',
-                'usersessions','loadbalancing','requestauthor'],$dom);
+                'serverstatuses','requestcourses','helpsettings',
+                'coursedefaults','usersessions','loadbalancing',
+                'requestauthor'],$dom);
     my @prefs_order = ('rolecolors','login','defaults','quotas','autoenroll',
                        'autoupdate','autocreate','directorysrch','contacts',
                        'usercreation','usermodification','scantron',
                        'requestcourses','requestauthor','coursecategories',
-                       'serverstatuses','coursedefaults','usersessions');
+                       'serverstatuses','helpsettings',
+                       'coursedefaults','usersessions');
     my %existing;
     if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
         %existing = %{$domconfig{'loadbalancing'}};
@@ -257,7 +259,7 @@ sub handler {
                       help => 'Domain_Configuration_Quotas',
                       header => [{col1 => 'User affiliation',
                                   col2 => 'Available tools',
-                                  col3 => 'Quotas, MB; (Authoring requires role)',}],
+                                  col3 => 'Quotas, Mb; (Authoring requires role)',}],
                     },
         'autoenroll' =>
                    { text => 'Auto-enrollment settings',
@@ -327,9 +329,7 @@ sub handler {
                   header => [{col1 => 'User affiliation',
                               col2 => 'Availability/Processing of requests',},
                              {col1 => 'Setting',
-                              col2 => 'Value'},
-                             {col1 => 'Available textbooks',
-                              col2 => ''}],
+                              col2 => 'Value'}],
                  },
         'requestauthor' =>
                  {text => 'Request authoring space',
@@ -356,12 +356,26 @@ sub handler {
                               col3 => 'Specific IPs',
                             }],
                  },
-        'coursedefaults' =>
+        'helpsettings' =>
+                 {text   => 'Help page settings',
+                  help   => 'Domain_Configuration_Help_Settings',
+                  header => [{col1 => 'Help Settings (logged-in users)',
+                              col2 => 'Value'}],
+                 },
+        'coursedefaults' => 
                  {text => 'Course/Community defaults',
                   help => 'Domain_Configuration_Course_Defaults',
-                  header => [{col1 => 'Defaults which can be overridden for each course by a DC',
+                  header => [{col1 => 'Defaults which can be overridden in each course by a CC',
+                              col2 => 'Value',},
+                             {col1 => 'Defaults which can be overridden for each course by a DC',
                               col2 => 'Value',},],
                  },
+        'privacy' => 
+                 {text   => 'User Privacy',
+                  help   => 'Domain_Configuration_User_Privacy',
+                  header => [{col1 => 'Setting',
+                              col2 => 'Value',}],
+                 },
         'usersessions' =>
                  {text  => 'User session hosting/offloading',
                   help  => 'Domain_Configuration_User_Sessions',
@@ -402,11 +416,10 @@ sub handler {
     my $confname = $dom.'-domainconfig';
 
     if ($phase eq 'process') {
-        my $result = &Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,
-                                                              \%prefs,\%domconfig,$confname,\@roles);
-        if ((ref($result) eq 'HASH') && (keys(%{$result}))) {
+        if (&Apache::lonconfigsettings::make_changes($r,$dom,$phase,$context,\@prefs_order,
+                                                     \%prefs,\%domconfig,$confname,\@roles) eq 'update') {
             $r->rflush();
-            &devalidate_remote_domconfs($dom,$result);
+            &devalidate_remote_domconfs($dom);
         }
     } elsif ($phase eq 'display') {
         my $js = &recaptcha_js().
@@ -420,16 +433,6 @@ sub handler {
                    &common_domprefs_js().
                    &Apache::loncommon::javascript_array_indexof();
         }
-        if (grep(/^requestcourses$/,@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,$js);
     } else {
 # check if domconfig user exists for the domain.
@@ -439,7 +442,7 @@ END
         unless ($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) {
@@ -511,7 +514,7 @@ sub process_changes {
         $output = &modify_rolecolors($r,$dom,$confname,$roles,
                                      $lastactref,%domconfig);
     } elsif ($action eq 'quotas') {
-        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
+        $output = &modify_quotas($dom,$action,%domconfig);
     } elsif ($action eq 'autoenroll') {
         $output = &modify_autoenroll($dom,$lastactref,%domconfig);
     } elsif ($action eq 'autoupdate') {
@@ -527,7 +530,7 @@ sub process_changes {
     } elsif ($action eq 'contacts') {
         $output = &modify_contacts($dom,$lastactref,%domconfig);
     } elsif ($action eq 'defaults') {
-        $output = &modify_defaults($dom,$lastactref,%domconfig);
+        $output = &modify_defaults($dom,$r,%domconfig);
     } elsif ($action eq 'scantron') {
         $output = &modify_scantron($r,$dom,$confname,$lastactref,%domconfig);
     } elsif ($action eq 'coursecategories') {
@@ -535,13 +538,15 @@ sub process_changes {
     } elsif ($action eq 'serverstatuses') {
         $output = &modify_serverstatuses($dom,%domconfig);
     } elsif ($action eq 'requestcourses') {
-        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
+        $output = &modify_quotas($dom,$action,%domconfig);
     } elsif ($action eq 'requestauthor') {
-        $output = &modify_quotas($r,$dom,$action,$lastactref,%domconfig);
+        $output = &modify_quotas($dom,$action,%domconfig);
+    } elsif ($action eq 'helpsettings') {
+        $output = &modify_helpsettings($r,$dom,$confname,%domconfig);
     } elsif ($action eq 'coursedefaults') {
-        $output = &modify_coursedefaults($dom,$lastactref,%domconfig);
+        $output = &modify_coursedefaults($dom,%domconfig);
     } elsif ($action eq 'usersessions') {
-        $output = &modify_usersessions($dom,$lastactref,%domconfig);
+        $output = &modify_usersessions($dom,%domconfig);
     } elsif ($action eq 'loadbalancing') {
         $output = &modify_loadbalancing($dom,%domconfig);
     }
@@ -570,7 +575,7 @@ 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"';
         }
@@ -609,6 +614,8 @@ sub print_config_box {
             $output .= &print_usersessions('top',$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);
         }
         $output .= '
            </table>
@@ -659,7 +666,7 @@ sub print_config_box {
             <table class="LC_nested">
              <tr class="LC_info_row">
               <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td></tr>'.
+              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
                        &print_usermodification('bottom',$dom,$settings,\$rowtotal);
             $rowtotal ++;
         } elsif ($action eq 'coursecategories') {
@@ -675,25 +682,14 @@ 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).
-                       &print_studentcode($settings,\$rowtotal).'
-           </table>
-          </td>
-         </tr>
-         <tr>
-           <td>
-            <table class="LC_nested">
-             <tr class="LC_info_row">
-              <td class="LC_left_item"'.$colspan.'>'.&mt($item->{'header'}->[2]->{'col1'}).'</td>
-              <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td> </tr>'.
-                       &print_textbookcourses($dom,$settings,\$rowtotal);
+            $output .= &print_requestmail($dom,$action,$settings,\$rowtotal);
         } elsif ($action eq 'requestauthor') {
             $output .= &print_requestmail($dom,$action,$settings,\$rowtotal);
         } elsif ($action eq 'usersessions') {
@@ -709,6 +705,8 @@ sub print_config_box {
               <td class="LC_right_item">'.&mt($item->{'header'}->[2]->{'col2'}).'</td>      </tr>'.
                        &print_usersessions('bottom',$dom,$settings,\$rowtotal);
             $rowtotal ++;
+        } elsif ($action eq 'coursedefaults') {
+            $output .= &print_coursedefaults('bottom',$dom,$settings,\$rowtotal);
         } elsif ($action eq 'rolecolors') {
             $output .= &print_rolecolors($phase,'coordinator',$dom,$confname,$settings,\$rowtotal).'
            </table>
@@ -796,7 +794,7 @@ sub print_config_box {
         } elsif ($action eq 'contacts') {
             $output .= &print_contacts($dom,$settings,\$rowtotal);
         } elsif ($action eq 'defaults') {
-            $output .= &print_defaults($dom,$settings,\$rowtotal);
+            $output .= &print_defaults($dom,\$rowtotal);
         } elsif ($action eq 'scantron') {
             $output .= &print_scantronformat($r,$dom,$confname,$settings,\$rowtotal);
         } elsif ($action eq 'serverstatuses') {
@@ -805,8 +803,6 @@ sub print_config_box {
             $output .= &print_helpsettings($dom,$confname,$settings,\$rowtotal);
         } elsif ($action eq 'loadbalancing') {
             $output .= &print_loadbalancing($dom,$settings,\$rowtotal);
-        } elsif ($action eq 'coursedefaults') {
-            $output .= &print_coursedefaults('bottom',$dom,$settings,\$rowtotal);
         }
     }
     $output .= '
@@ -1553,14 +1549,14 @@ sub print_quotas {
     my $typecount = 0;
     my ($css_class,%titles);
     if ($context eq 'requestcourses') {
-        @usertools = ('official','unofficial','community','textbook');
+        @usertools = ('official','unofficial','community');
         @options =('norequest','approval','validate','autolimit');
         %validations = &Apache::lonnet::auto_courserequest_checks($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();
@@ -1967,7 +1963,7 @@ sub print_quotas {
 
 sub print_requestmail {
     my ($dom,$action,$settings,$rowtotal) = @_;
-    my ($now,$datatable,%currapp);
+    my ($now,$datatable,%currapp,$rows);
     $now = time;
     if (ref($settings) eq 'HASH') {
         if (ref($settings->{'notify'}) eq 'HASH') {
@@ -1999,216 +1995,6 @@ 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),
@@ -2370,7 +2156,7 @@ sub print_autocreate {
                 }
             }
         }
-        if ($settings->{'xmldc'} ne '') {
+        if ($settings->{'xmldc'} ne '') { 
             $currhash{$settings->{'xmldc'}} = 1;
         }
     } else {
@@ -2707,10 +2493,9 @@ sub print_coursedefaults {
                                                  \%choices,$itemcount);
     } else {
         $css_class = $itemcount%2 ? ' class="LC_odd_row"' : '';
-        my ($currdefresponder,$def_official_credits,$def_unofficial_credits,$def_textbook_credits,
-            %curruploadquota);
+        my ($currdefresponder,$def_official_credits,$def_unofficial_credits,%curruploadquota);
         my $currusecredits = 0;
-        my @types = ('official','unofficial','community','textbook');
+        my @types = ('official','unofficial','community');
         if (ref($settings) eq 'HASH') {
             $currdefresponder = $settings->{'anonsurvey_threshold'};
             if (ref($settings->{'uploadquota'}) eq 'HASH') {
@@ -2721,9 +2506,7 @@ sub print_coursedefaults {
             if (ref($settings->{'coursecredits'}) eq 'HASH') {
                 $def_official_credits = $settings->{'coursecredits'}->{'official'};
                 $def_unofficial_credits = $settings->{'coursecredits'}->{'unofficial'};
-                $def_textbook_credits = $settings->{'coursecredits'}->{'textbook'};
-                if (($def_official_credits ne '') || ($def_unofficial_credits ne '') ||
-                    ($def_textbook_credits ne '')) {
+                if (($def_official_credits ne '') || ($def_unofficial_credits ne '')) {
                     $currusecredits = 1;
                 }
             }
@@ -2759,7 +2542,7 @@ sub print_coursedefaults {
         $datatable .= '</tr></table></td></tr>'."\n";
         $itemcount += 2;
         my $onclick = 'toggleCredits(this.form);';
-        my $display = 'none';
+        my $display = 'none';  
         if ($currusecredits) {
             $display = 'block';
         }
@@ -2773,11 +2556,6 @@ 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="'.
-                         $def_textbook_credits.'" size="3" />').
                          '</span></div>'."\n";
         %defaultchecked = ('coursecredits' => 'off');
         @toggles = ('coursecredits');
@@ -3219,7 +2997,7 @@ sub print_loadbalancing {
     }
     my ($othertitle,$usertypes,$types) =
         &Apache::loncommon::sorted_inst_types($dom);
-    my $rownum = 8;
+    my $rownum = 6;
     if (ref($types) eq 'ARRAY') {
         $rownum += scalar(@{$types});
     }
@@ -3250,7 +3028,7 @@ 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) {
                 $datatable .= &mt('Add balancer:');
             } else {
@@ -3266,7 +3044,7 @@ sub print_loadbalancing {
                 next if ($currbalancer{$server});
                 $datatable .= '<option value="'.$server.'">'.$server.'</option>'."\n";
             }
-            $datatable .=
+            $datatable .= 
                 '</select>'."\n".
                 '<input type="hidden" name="loadbalancing_prevlonhost_'.$balnum.'" id="loadbalancing_prevlonhost_'.$balnum.'" value="" />&nbsp;</span>'."\n";
         } else {
@@ -3305,7 +3083,7 @@ sub print_loadbalancing {
                 if (exists($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>';
@@ -3389,7 +3167,7 @@ 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}) {
@@ -3398,7 +3176,7 @@ sub loadbalancing_rules {
             if (ref($currrules) eq 'HASH') {
                 $current = $currrules->{$type};
             }
-            if (($type eq '_LC_external') || ($type eq '_LC_internetdom') || ($type eq '_LC_ipchange')) {
+            if (($type eq '_LC_external') || ($type eq '_LC_internetdom')) {
                 if ($dom ne &Apache::lonnet::host_domain($lonhost)) {
                     $current = '';
                 }
@@ -3419,10 +3197,8 @@ sub loadbalancing_titles {
            '_LC_author'      => &mt('Users from [_1] with author role',$dom),
            '_LC_internetdom' => &mt('Users not from [_1], but from [_2]',$dom,$intdom),
            '_LC_external'    => &mt('Users not from [_1]',$intdom),
-           '_LC_ipchangesso' => &mt('SSO users from [_1], with IP mismatch',$dom),
-           '_LC_ipchange'    => &mt('Non-SSO users with IP mismatch'),
                      );
-    my @alltypes = ('_LC_adv','_LC_author','_LC_internetdom','_LC_external','_LC_ipchangesso','_LC_ipchange');
+    my @alltypes = ('_LC_adv','_LC_author','_LC_internetdom','_LC_external');
     if (ref($types) eq 'ARRAY') {
         unshift(@alltypes,@{$types},'default');
     }
@@ -3447,28 +3223,23 @@ sub loadbalancing_titles {
 sub loadbalance_rule_row {
     my ($type,$title,$current,$servers,$currbalancer,$lonhost,$dom,
         $targets_div_style,$homedom_div_style,$css_class,$balnum,$num,$islast) = @_;
-    my @rulenames;
+    my @rulenames = ('default','homeserver');
     my %ruletitles = &offloadtype_text();
-    if (($type eq '_LC_ipchangesso') || ($type eq '_LC_ipchange')) {
-        @rulenames = ('balancer','offloadedto');
+    if ($type eq '_LC_external') {
+        push(@rulenames,'externalbalancer');
     } else {
-        @rulenames = ('default','homeserver');
-        if ($type eq '_LC_external') {
-            push(@rulenames,'externalbalancer');
-        } else {
-            push(@rulenames,'specific');
-        }
-        push(@rulenames,'none');
+        push(@rulenames,'specific');
     }
+    push(@rulenames,'none');
     my $style = $targets_div_style;
-    if (($type eq '_LC_external') || ($type eq '_LC_internetdom') || ($type eq '_LC_ipchange')) {
+    if (($type eq '_LC_external') || ($type eq '_LC_internetdom')) {
         $style = $homedom_div_style;
     }
     my $space;
     if ($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.
@@ -3488,7 +3259,7 @@ 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".
@@ -3526,8 +3297,6 @@ sub offloadtype_text {
            'externalbalancer' => "Offloads to Load Balancer in user's domain",
            'specific'         => 'Offloads to specific server',
            'none'             => 'No offload',
-           'balancer'         => 'Session hosted on Load Balancer, after re-authentication',
-           'offloadedto'      => 'Session hosted on offload server, after re-authentication',
     );
     return %ruletitles;
 }
@@ -3568,7 +3337,6 @@ sub tool_titles {
                      official   => 'Official courses (with institutional codes)',
                      unofficial => 'Unofficial courses',
                      community  => 'Communities',
-                     textbook   => 'Textbook courses',
                  );
     return %titles;
 }
@@ -3578,7 +3346,6 @@ sub courserequest_titles {
                                    official   => 'Official',
                                    unofficial => 'Unofficial',
                                    community  => 'Communities',
-                                   textbook   => 'Textbook',
                                    norequest  => 'Not allowed',
                                    approval   => 'Approval by Dom. Coord.',
                                    validate   => 'With validation',
@@ -3595,7 +3362,7 @@ sub authorrequest_titles {
                                    automatic  => 'Automatic approval',
                  );
     return %titles;
-}
+} 
 
 sub courserequest_conditions {
     my %conditions = &Apache::lonlocal::texthash (
@@ -3834,9 +3601,9 @@ 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".
@@ -3983,18 +3750,10 @@ sub print_usermodification {
 }
 
 sub print_defaults {
-    my ($dom,$settings,$rowtotal) = @_;
+    my ($dom,$rowtotal) = @_;
     my @items = ('auth_def','auth_arg_def','lang_def','timezone_def',
                  'datelocale_def','portal_def');
-    my %defaults;
-    if (ref($settings) eq 'HASH') {
-        %defaults = %{$settings};
-    } else {
-        my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
-        foreach my $item (@items) {
-            $defaults{$item} = $domdefaults{$item};
-        }
-    }
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
     my $titles = &defaults_titles($dom);
     my $rownum = 0;
     my ($datatable,$css_class);
@@ -4018,7 +3777,7 @@ sub print_defaults {
             my %authnames = &authtype_names();
             foreach my $auth (@authtypes) {
                 my $checked = ' ';
-                if ($defaults{$item} eq $auth) {
+                if ($domdefaults{$item} eq $auth) {
                     $checked = ' checked="checked" ';
                 }
                 $datatable .= '<label><input type="radio" name="'.$item.
@@ -4027,15 +3786,15 @@ sub print_defaults {
             }
         } elsif ($item eq 'timezone_def') {
             my $includeempty = 1;
-            $datatable .= &Apache::loncommon::select_timezone($item,$defaults{$item},undef,$includeempty);
+            $datatable .= &Apache::loncommon::select_timezone($item,$domdefaults{$item},undef,$includeempty);
         } elsif ($item eq 'datelocale_def') {
             my $includeempty = 1;
-            $datatable .= &Apache::loncommon::select_datelocale($item,$defaults{$item},undef,$includeempty);
+            $datatable .= &Apache::loncommon::select_datelocale($item,$domdefaults{$item},undef,$includeempty);
         } elsif ($item eq 'lang_def') {
             my %langchoices = &get_languages_hash();
             $langchoices{''} = 'No language preference';
             %langchoices = &Apache::lonlocal::texthash(%langchoices);
-            $datatable .= &Apache::loncommon::select_form($defaults{$item},$item,
+            $datatable .= &Apache::loncommon::select_form($domdefaults{$item},$item,
                                                           \%langchoices);
         } else {
             my $size;
@@ -4043,7 +3802,7 @@ sub print_defaults {
                 $size = ' size="25"';
             }
             $datatable .= '<input type="text" name="'.$item.'" value="'.
-                          $defaults{$item}.'"'.$size.' />';
+                          $domdefaults{$item}.'"'.$size.' />';
         }
         $datatable .= '</td></tr>';
         $rownum ++;
@@ -4380,7 +4139,7 @@ sub print_coursecategories {
                             }
                             $datatable .= '<option value="'.$k.'"'.$selstr.'>'.$vpos.'</option>';
                         }
-                        $datatable .= '</select></span></td><td>';
+                        $datatable .= '</select></td><td>';
                         if ($parent eq 'instcode' || $parent eq 'communities') {
                             $datatable .=  '<span class="LC_nobreak">'
                                            .$default_names{$parent}.'</span>';
@@ -4410,8 +4169,7 @@ sub print_coursecategories {
                             $datatable .= '</td>';
                         } else {
                             $datatable .= $parent
-                                          .'&nbsp;<span class="LC_nobreak"><label>'
-                                          .'<input type="checkbox" name="deletecategory" '
+                                          .'&nbsp;<label><input type="checkbox" name="deletecategory" '
                                           .'value="'.$item.'" />'.&mt('Delete').'</label></span></td>';
                         }
                         my $depth = 1;
@@ -4526,8 +4284,7 @@ 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',
-            'uniquecodes');
+            'takeoffline','takeonline','showenv','toggledebug','ping','domconf');
 }
 
 sub coursecategories_javascript {
@@ -5156,7 +4913,7 @@ 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};
@@ -5214,9 +4971,7 @@ sub modify_login {
         }
         if (keys(%changes) > 0 || $colchgtext) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            if (ref($lastactref) eq 'HASH') {
-                $lastactref->{'domainconfig'} = 1;
-            }
+            $$lastactref = 'update';
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (sort(keys(%changes))) {
                 if ($item eq 'loginvia') {
@@ -5276,7 +5031,7 @@ sub modify_login {
                     }
                 } elsif ($item eq 'captcha') {
                     if (ref($loginhash{'login'}) eq 'HASH') {
-                        my $chgtxt;
+                        my $chgtxt; 
                         if ($loginhash{'login'}{$item} eq 'notused') {
                             $chgtxt .= &mt('No CAPTCHA validation in use for helpdesk form.');
                         } else {
@@ -5364,9 +5119,7 @@ sub modify_rolecolors {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            if (ref($lastactref) eq 'HASH') {
-                $lastactref->{'domainconfig'} = 1;
-            }
+            $$lastactref = 'update';
             $resulttext = &display_colorchgs($dom,\%changes,$roles,
                                              $rolehash{'rolecolors'});
         } else {
@@ -5778,7 +5531,7 @@ sub publishlogo {
 # See if there is anything left
     unless ($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);
@@ -6047,25 +5800,21 @@ sub check_switchserver {
 }
 
 sub modify_quotas {
-    my ($r,$dom,$action,$lastactref,%domconfig) = @_;
+    my ($dom,$action,%domconfig) = @_;
     my ($context,@usertools,@options,%validations,%titles,%confhash,%toolshash,
-        %limithash,$toolregexp,%conditions,$resulttext,%changes,$confname,$configuserok,
-        $author_ok,$switchserver,$errors);
+        %limithash,$toolregexp,%conditions,$resulttext,%changes);
     if ($action eq 'quotas') {
         $context = 'tools'; 
     } else {
         $context = $action;
     }
     if ($context eq 'requestcourses') {
-        @usertools = ('official','unofficial','community','textbook');
+        @usertools = ('official','unofficial','community');
         @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();
@@ -6073,7 +5822,7 @@ sub modify_quotas {
         @usertools = ('aboutme','blog','webdav','portfolio');
         %titles = &tool_titles();
     }
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
     my ($othertitle,$usertypes,$types) = &Apache::loncommon::sorted_inst_types($dom);
     foreach my $key (keys(%env)) {
         if ($context eq 'requestcourses') {
@@ -6104,36 +5853,6 @@ sub modify_quotas {
         my @approvalnotify = &Apache::loncommon::get_env_multiple('form.reqapprovalnotify');
         @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'}) {
@@ -6144,131 +5863,10 @@ 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'};
@@ -6410,9 +6008,7 @@ sub modify_quotas {
         $domdefaults{'requestauthor'} = \%confhash;
     } else {
         foreach my $key (keys(%confhash)) {
-            unless (($context eq 'requestcourses') && ($key eq 'textbooks')) {
-                $domdefaults{$key} = $confhash{$key};
-            }
+            $domdefaults{$key} = $confhash{$key};
         }
     }
 
@@ -6425,11 +6021,9 @@ 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') {
                     $resulttext .= '<li>'.&mt('Portfolio default quotas').'<ul>';
@@ -6439,7 +6033,7 @@ sub modify_quotas {
                             if ($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>';
                         }
                     }
                     $resulttext .= '</ul></li>';
@@ -6452,7 +6046,7 @@ sub modify_quotas {
                             if ($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>';
                         }
                     }
                     $resulttext .= '</ul></li>';
@@ -6463,7 +6057,7 @@ sub modify_quotas {
                 my (%haschgs,%inconf);
                 if ($context eq 'requestauthor') {
                     %haschgs = %changes;
-                    %inconf = %confhash;
+                    %inconf = %confhash; 
                 } else {
                     if (ref($changes{$item}) eq 'HASH') {
                         %haschgs = %{$changes{$item}};
@@ -6477,7 +6071,7 @@ 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} = $newacc;
@@ -6549,42 +6143,6 @@ sub modify_quotas {
                     }
                 }
             }
-            if ($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);
@@ -6602,40 +6160,9 @@ 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);
@@ -6705,9 +6232,7 @@ sub modify_autoenroll {
             if ($changes{'coowners'}) {
                 $resulttext .= '<li>'.&mt("$title{'coowners'} set to $offon[$env{'form.autoassign_coowners'}]").'</li>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
-                if (ref($lastactref) eq 'HASH') {
-                    $lastactref->{'domainconfig'} = 1;
-                }
+                $$lastactref = 'update';
             }
             $resulttext .= '</ul>';
         } else {
@@ -7113,7 +6638,7 @@ sub modify_directorysrch {
                         } else {
                             $chgtext =~ s/\; $//;
                         }
-                        $resulttext .=
+                        $resulttext .= 
                             '<li>'.
                             &mt("Users from domain '[_1]' permitted to search the institutional directory set to: [_2]",
                                 '<span class="LC_cusr_emph">'.$dom.'</span>',$chgtext).
@@ -7265,9 +6790,7 @@ sub modify_contacts {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             &Apache::loncommon::devalidate_domconfig_cache($dom);
-            if (ref($lastactref) eq 'HASH') {
-                $lastactref->{'domainconfig'} = 1;
-            }
+            $$lastactref = 'update';
             my ($titles,$short_titles)  = &contact_titles();
             $resulttext = &mt('Changes made:').'<ul>';
             foreach my $item (@contacts) {
@@ -7342,7 +6865,7 @@ sub modify_usercreation {
     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,1);
+            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{$item}})) {
@@ -7615,7 +7138,7 @@ sub modify_usercreation {
                             if ($captchas{$cancreate{$type}}) {
                                 $chgtext .= &mt("Validation for self-creation screen set to $captchas{$cancreate{$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') {
@@ -7743,7 +7266,7 @@ 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'})) {
@@ -7782,7 +7305,7 @@ sub process_captcha {
                 $changes->{'cancreate'} = ['recaptchakeys'];
             }
         } else {
-            $changes->{'recaptchakeys'} = 1;
+            $changes->{'recaptchakeys'} = 1; 
         }
     }
     return;
@@ -7909,9 +7432,9 @@ sub modify_usermodification {
 }
 
 sub modify_defaults {
-    my ($dom,$lastactref,%domconfig) = @_;
+    my ($dom,$r,%domconfig) = @_;
     my ($resulttext,$mailmsgtxt,%newvalues,%changes,@errors);
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
     my @items = ('auth_def','auth_arg_def','lang_def','timezone_def','datelocale_def','portal_def');
     my @authtypes = ('internal','krb4','krb5','localauth');
     foreach my $item (@items) {
@@ -7971,7 +7494,7 @@ sub modify_defaults {
     if ($putresult eq 'ok') {
         if (keys(%changes) > 0) {
             $resulttext = &mt('Changes made:').'<ul>';
-            my $version = &Apache::lonnet::get_server_loncaparev($dom);
+            my $version = $r->dir_config('lonVersion');
             my $mailmsgtext = "Changes made to domain settings in a LON-CAPA installation - domain: $dom (running version: $version) - dns_domain.tab needs to be updated with the following changes, to support legacy 2.4, 2.5 and 2.6 versions of LON-CAPA.\n\n";
             foreach my $item (sort(keys(%changes))) {
                 my $value = $env{'form.'.$item};
@@ -7994,9 +7517,6 @@ 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') {
@@ -8089,9 +7609,7 @@ sub modify_scantron {
                 }
                 $resulttext .= '</ul>';
                 &Apache::loncommon::devalidate_domconfig_cache($dom);
-                if (ref($lastactref) eq 'HASH') {
-                    $lastactref->{'domainconfig'} = 1;
-                }
+                $$lastactref = 'update';
             } else {
                 $resulttext = &mt('No changes made to bubblesheet format file');
             }
@@ -8482,7 +8000,7 @@ 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};
             }
         }
@@ -8515,13 +8033,13 @@ sub modify_helpsettings {
 }
 
 sub modify_coursedefaults {
-    my ($dom,$lastactref,%domconfig) = @_;
+    my ($dom,%domconfig) = @_;
     my ($resulttext,$errors,%changes,%defaultshash);
     my %defaultchecked = ('canuse_pdfforms' => 'off');
     my @toggles = ('canuse_pdfforms');
     my @numbers = ('anonsurvey_threshold','uploadquota_official','uploadquota_unofficial',
-                   'uploadquota_community','uploadquota_textbook');
-    my @types = ('official','unofficial','community','textbook');
+                   'uploadquota_community');
+    my @types = ('official','unofficial','community');
     my %staticdefaults = (
                            anonsurvey_threshold => 10,
                            uploadquota          => 500,
@@ -8556,7 +8074,7 @@ sub modify_coursedefaults {
         }
         foreach my $item (@numbers) {
             my ($currdef,$newdef);
-            $newdef = $env{'form.'.$item};
+            my $newdef = $env{'form.'.$item};
             if ($item eq 'anonsurvey_threshold') {
                 $currdef = $domconfig{'coursedefaults'}{$item};
                 $newdef =~ s/\D//g;
@@ -8586,33 +8104,30 @@ 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;
-        my $textbookcreds = $env{'form.textbook_credits'};
-        $textbookcreds =~ s/[^\d.]+//g;
+        $unofficialcreds =~ s/^[^\d\.]//g;
         if (ref($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'}{'textbook'} ne $textbookcreds)) {
+                ($domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'} ne $unofficialcreds)) {
                 $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) {
-            my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
             if (($changes{'canuse_pdfforms'}) || ($changes{'coursecredits'}) || ($changes{'uploadquota'})) {
+                %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
                 if ($changes{'canuse_pdfforms'}) {
                     $domdefaults{'canuse_pdfforms'}=$defaultshash{'coursedefaults'}{'canuse_pdfforms'};
                 }
@@ -8622,8 +8137,6 @@ sub modify_coursedefaults {
                             $defaultshash{'coursedefaults'}{'coursecredits'}{'official'};
                         $domdefaults{'unofficialcredits'} =
                             $defaultshash{'coursedefaults'}{'coursecredits'}{'unofficial'};
-                        $domdefaults{'textbookcredits'} =
-                            $domdefaults{'coursedefaults'}{'coursecredits'}{'textbook'};
                     }
                 }
                 if ($changes{'uploadquota'}) {
@@ -8635,9 +8148,6 @@ 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))) {
@@ -8654,8 +8164,6 @@ 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>'.$defaultshash{'coursedefaults'}{'uploadquota'}{'community'}.'</b>').'</li>'.
                                        '</ul>'.
                                        '</li>';
@@ -8665,14 +8173,12 @@ sub modify_coursedefaults {
                 } elsif ($item eq 'coursecredits') {
                     if (ref($defaultshash{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
                         if (($domdefaults{'officialcredits'} eq '') &&
-                            ($domdefaults{'unofficialcredits'} eq '') &&
-                            ($domdefaults{'textbookcredits'} eq '')) {
+                            ($domdefaults{'unofficialcredits'} 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>';
                         }
@@ -8693,7 +8199,7 @@ sub modify_coursedefaults {
 }
 
 sub modify_usersessions {
-    my ($dom,$lastactref,%domconfig) = @_;
+    my ($dom,%domconfig) = @_;
     my @hostingtypes = ('version','excludedomain','includedomain');
     my @offloadtypes = ('primary','default');
     my %types = (
@@ -8710,7 +8216,7 @@ sub modify_usersessions {
     foreach my $prefix (@prefixes) {
         $defaultshash{'usersessions'}{$prefix} = {};
     }
-    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom,1);
+    my %domdefaults = &Apache::lonnet::get_domain_defaults($dom);
     my $resulttext;
     my %iphost = &Apache::lonnet::get_iphost();
     foreach my $prefix (@prefixes) {
@@ -8886,9 +8392,6 @@ 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>';
@@ -8900,8 +8403,7 @@ sub modify_usersessions {
                                 foreach my $lonhost (sort(keys(%{$changes{$prefix}}))) {
                                     $resulttext .= '<li><b>'.$lonhost.'</b> ';
                                     my $lonhostdom = &Apache::lonnet::host_domain($lonhost);
-                                    my $cachekey = &escape('spares').':'.&escape($lonhostdom);
-                                    &Apache::lonnet::remote_devalidate_cache($lonhost,[$cachekey]);
+                                    &Apache::lonnet::remote_devalidate_cache($lonhost,'spares',$lonhostdom);
                                     if (ref($changes{$prefix}{$lonhost}) eq 'HASH') {
                                         foreach my $type (@{$types{$prefix}}) {
                                             if ($changes{$prefix}{$lonhost}{$type}) {
@@ -8991,7 +8493,7 @@ sub modify_loadbalancing {
         if ($balancer eq '') {
             next;
         }
-        if (!exists($servers{$balancer})) {
+        if (!exists($servers{$balancer})) { 
             if (exists($currbalancer{$balancer})) {
                 push(@{$changes{'delete'}},$balancer);
             }
@@ -9042,14 +8544,14 @@ 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 $dom) {
@@ -9058,7 +8560,7 @@ sub modify_loadbalancing {
         if (ref($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};
                 }
@@ -9083,17 +8585,17 @@ 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>';
-                        my $cachekey = &escape('loadbalancing').':'.&escape($dom);
-                        &Apache::lonnet::remote_devalidate_cache($balancer,[$cachekey]);
+                        &Apache::lonnet::remote_devalidate_cache($balancer,'loadbalancing',$dom);
                     }
                 }
                 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);
                     }
                 }
@@ -9134,19 +8636,17 @@ sub modify_loadbalancing {
                                         my $balancetext;
                                         if ($rule eq '') {
                                             $balancetext =  $ruletitles{'default'};
-                                        } elsif (($rule eq 'homeserver') || ($rule eq 'externalbalancer') ||
-                                                 ($rule eq 'balancer') || ($rule eq 'offloadedto')) {
+                                        } elsif (($rule eq 'homeserver') || ($rule eq 'externalbalancer')) {
                                             $balancetext =  $ruletitles{$rule};
                                         } 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>';     
                                     }
                                 }
                             }
                         }
-                        my $cachekey = &escape('loadbalancing').':'.&escape($dom);
-                        &Apache::lonnet::remote_devalidate_cache($balancer,[$cachekey]);
+                        &Apache::lonnet::remote_devalidate_cache($balancer,'loadbalancing',$dom);
                     }
                 }
                 if ($resulttext ne '') {
@@ -9234,7 +8734,7 @@ sub active_dc_picker {
         }
     }
     @domcoord = sort(@domcoord);
-    my $numdcs = scalar(@domcoord);
+    my $numdcs = scalar(@domcoord); 
     my $rows = 0;
     my $table;
     if ($numdcs > 1) {
@@ -9278,31 +8778,21 @@ sub active_dc_picker {
                       '<input type="'.$inputtype.'" name="'.$name.'"'.
                       ' value="'.$domcoord[$i].'"'.$check.' />'.$user;
             if ($user ne $dcname.':'.$dcdom) {
-                $table .=  ' ('.$dcname.':'.$dcdom.')';
+                $table .=  ' ('.$dcname.':'.$dcdom.')'.
+                           '</label></span></td>';
             }
-            $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="'.$domcoord[0].'" />'.$user;
-            if ($user ne $dcname.':'.$dcdom) {
-                $table .=  ' ('.$dcname.':'.$dcdom.')';
-            }
+            $table .= '<input type="hidden" name="'.$name.'" value="'.$domcoord[0].'" />';
         } else {
             my $check;
             if (exists($currhash{$domcoord[0]})) {
                 $check = ' checked="checked"';
             }
-            $table .= '<span class="LC_nobreak"><label>'.
-                      '<input type="checkbox" name="'.$name.'" '.
-                      'value="'.$domcoord[0].'"'.$check.' />'.$user;
-            if ($user ne $dcname.':'.$dcdom) {
-                $table .=  ' ('.$dcname.':'.$dcdom.')';
-            }
-            $table .= '</label></span>';
+            $table .= '<input type="checkbox" name="'.$name.'" '.
+                      'value="'.$domcoord[0].'"'.$check.' />';
             $rows ++;
         }
     }
@@ -9378,7 +8868,7 @@ sub lonbalance_targets_js {
     }
     &get_loadbalancers_config($servers,\%existing,\%currbalancer,
                               \%currtargets,\%currrules);
-    my $balancers = join("','",sort(keys(%currbalancer)));
+    my $balancers = join("','",sort(keys(%currbalancer))); 
     return <<"END";
 
 <script type="text/javascript">
@@ -9449,6 +8939,7 @@ 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';
@@ -9460,11 +8951,12 @@ 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);
+                    
                 }
             }
         }
@@ -9877,25 +9369,18 @@ sub captcha_phrases {
     );
 }
 
+
 sub devalidate_remote_domconfs {
-    my ($dom,$cachekeys) = @_;
-    return unless (ref($cachekeys) eq 'HASH');
+    my ($dom) = @_;
+    my $primary_id = &Apache::lonnet::domain($dom,'primary');
+    my $intdom = &Apache::lonnet::internet_dom($primary_id);
     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});
-            my @cached;
-            foreach my $name (@posscached) {
-                if ($cachekeys->{$name}) {
-                    push(@cached,&escape($name).':'.&escape($dom));
-                }
-            }
-            if (@cached) {
-                &Apache::lonnet::remote_devalidate_cache($server,\@cached);
-            }
+            &Apache::lonnet::remote_devalidate_cache($server,'domainconfig',$dom);
         }
     }
     return;