--- loncom/interface/lonmenu.pm	2009/04/29 16:57:29	1.261
+++ loncom/interface/lonmenu.pm	2009/05/06 12:13:18	1.262
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.261 2009/04/29 16:57:29 bisitz Exp $
+# $Id: lonmenu.pm,v 1.262 2009/05/06 12:13:18 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1629,7 +1629,7 @@ sub hidden_button_check {
 sub roles_selector {
     my ($cdom,$cnum) = @_;
     my $now = time;
-    my (%courseroles,%seccount,%gotnosection);
+    my (%courseroles,%seccount);
     my $is_cc;
     my $role_selector;
     if ($env{'user.role.cc./'.$cdom.'/'.$cnum}) {
@@ -1644,35 +1644,9 @@ sub roles_selector {
         }
     }
     if ($is_cc) {
-        my %adv_roles =
-             &Apache::lonnet::get_course_adv_roles($env{'request.course.id'},1);
-        foreach my $role (keys(%adv_roles)) {
-            my ($urole,$usec) = split(/:/,$role);
-            if (!$gotnosection{$urole}) {
-                $seccount{$urole} ++;
-                $gotnosection{$urole} = 1;
-            }
-            if (ref($courseroles{$urole}) eq 'ARRAY') {
-                if ($usec ne '') {
-                    if (!grep(/^Q$usec\E$/,@{$courseroles{$urole}})) {
-                        push(@{$courseroles{$urole}},$usec);
-                        $seccount{$urole} ++;
-                    }
-                }
-            } else {
-                @{$courseroles{$urole}} = ();
-                if ($usec ne '') {
-                    $seccount{$urole} ++;
-                    push(@{$courseroles{$urole}},$usec);
-                }
-            }
-        }
-        my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum);
-        @{$courseroles{'st'}} = ();
-        if (keys(%sections_count) > 0) {
-            push(@{$courseroles{'st'}},keys(%sections_count));
-        }
+        &get_all_courseroles($cdom,$cnum,\%courseroles,\%seccount); 
     } else {
+        my %gotnosection;
         foreach my $item (keys(%env)) {
             if ($item =~ m-^user\.role\.([^.]+)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) {
                 my $role = $1;
@@ -1730,6 +1704,61 @@ sub roles_selector {
     return $role_selector;
 }
 
+sub get_all_courseroles {
+    my ($cdom,$cnum,$courseroles,$seccount) = @_;
+    unless ((ref($courseroles) eq 'HASH') && (ref($seccount) eq 'HASH')) {
+        return;
+    }
+    my ($result,$cached) = 
+        &Apache::lonnet::is_cached_new('getcourseroles',$cdom.'_'.$cnum);
+    if (defined($cached)) {
+        if (ref($result) eq 'HASH') {
+            if ((ref($result->{'roles'}) eq 'HASH') && 
+                (ref($result->{'seccount'}) eq 'HASH')) {
+                %{$courseroles} = %{$result->{'roles'}};
+                %{$seccount} = %{$result->{'seccount'}};
+                return;
+            }
+        }
+    }
+    my %gotnosection;
+    my %adv_roles =
+         &Apache::lonnet::get_course_adv_roles($env{'request.course.id'},1);
+    foreach my $role (keys(%adv_roles)) {
+        my ($urole,$usec) = split(/:/,$role);
+        if (!$gotnosection{$urole}) {
+            $seccount->{$urole} ++;
+            $gotnosection{$urole} = 1;
+        }
+        if (ref($courseroles->{$urole}) eq 'ARRAY') {
+            if ($usec ne '') {
+                if (!grep(/^Q$usec\E$/,@{$courseroles->{$urole}})) {
+                    push(@{$courseroles->{$urole}},$usec);
+                    $seccount->{$urole} ++;
+                }
+            }
+        } else {
+            @{$courseroles->{$urole}} = ();
+            if ($usec ne '') {
+                $seccount->{$urole} ++;
+                push(@{$courseroles->{$urole}},$usec);
+            }
+        }
+    }
+    my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum,['st']);
+    @{$courseroles->{'st'}} = ();
+    if (keys(%sections_count) > 0) {
+        push(@{$courseroles->{'st'}},keys(%sections_count));
+        $seccount->{'st'} = scalar(keys(%sections_count)); 
+    }
+    my $rolehash = {
+                     'roles'    => $courseroles,
+                     'seccount' => $seccount,
+                   };
+    &Apache::lonnet::do_cache_new('getcourseroles',$cdom.'_'.$cnum,$rolehash);
+    return;
+}
+
 sub jump_to_role {
     my ($cdom,$cnum,$seccount,$courseroles) = @_;
     my %lt = &Apache::lonlocal::texthash(