--- loncom/interface/lonmenu.pm	2012/08/03 01:36:55	1.384
+++ loncom/interface/lonmenu.pm	2012/09/04 20:47:56	1.386
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.384 2012/08/03 01:36:55 raeburn Exp $
+# $Id: lonmenu.pm,v 1.386 2012/09/04 20:47:56 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -393,8 +393,10 @@ sub secondary_menu {
     }
     $menu =~ s/\[uname\]/$$author{user}/g;
     $menu =~ s/\[udom\]/$$author{dom}/g;
-
-    return "<ul id=\"LC_secondary_menu\">$menu</ul>";
+    if ($menu) {
+        $menu = "<ul id=\"LC_secondary_menu\">$menu</ul>";
+    }
+    return $menu;
 }
 
 sub create_submenu {
@@ -1477,8 +1479,22 @@ sub roles_selector {
     } else {
         $ccrole = 'cc';
     }
-    my $priv;
+    my ($priv,$gotsymb,$destsymb);
     my $destinationurl = $ENV{'REQUEST_URI'};
+    if ($destinationurl =~ /\?symb=/) {
+        $gotsymb = 1;
+    } elsif ($destinationurl =~ m{^/enc/}) {
+        my $plainurl = &Apache::lonenc::unencrypted($destinationurl);
+        if ($plainurl =~ /\?symb=/) {
+            $gotsymb = 1;
+        }
+    }
+    unless ($gotsymb) {
+        $destsymb = &Apache::lonnet::symbread();
+        if ($destsymb ne '') {
+            $destsymb = &Apache::lonenc::check_encrypt($destsymb);
+        }
+    }
     my $reqprivs = &required_privs();
     if (ref($reqprivs) eq 'HASH') {
         my $destination = $destinationurl;
@@ -1566,7 +1582,12 @@ sub roles_selector {
                 $role_selector .= "\n".'<option value="'.$role.'">'.&Apache::lonnet::plaintext($role).'</option>'; 
             }
         }
-        $role_selector .= '</select>'."\n".
+        $role_selector .= '</select>'."\n";
+        if ($destsymb ne '') {
+            $role_selector .= '<input type="hidden" name="destsymb" value="'.
+                              &HTML::Entities::encode($destsymb).'" />'."\n";
+        }
+        $role_selector .=
                '<input type="hidden" name="destinationurl" value="'.
                &HTML::Entities::encode($destinationurl).'" />'."\n".
                '<input type="hidden" name="gotorole" value="1" />'."\n".