--- loncom/interface/lonmainmenu.pm	2010/03/10 21:25:50	1.9
+++ loncom/interface/lonmainmenu.pm	2017/06/26 01:56:58	1.12
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # displays the main menu
 #
-# $Id: lonmainmenu.pm,v 1.9 2010/03/10 21:25:50 droeschl Exp $
+# $Id: lonmainmenu.pm,v 1.12 2017/06/26 01:56:58 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -35,19 +35,27 @@
 package Apache::lonmainmenu;
 
 use strict;
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common REDIRECT);
 use Apache::loncommon();
 use Apache::lonnet;
 use Apache::lonmenu();
 
 sub handler {
     my $r = shift;
+
+    # Check for critical messages and redirect if present.  
+    my ($redirect,$url) = &Apache::loncommon::critical_redirect(300,'menu');
+    if ($redirect) {
+        &Apache::loncommon::content_type($r,'text/html');
+        $r->header_out(Location => $url);
+        return REDIRECT;
+    }
+
     &Apache::loncommon::no_cache($r);
     &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;
     return OK if $r->header_only;
 
-    my $form;
 # ---- Print the screen, pretend to be in text mode to generate text-based menu
 # temporarily set interface to "faketextual" and remote to "off", which renders
 # the main menu
@@ -56,7 +64,7 @@ sub handler {
     $r->print(&Apache::loncommon::start_page( 'Main Menu',
                                                undef,
                                               {'bread_crumbs' => 1}));
-    $r->print(&Apache::lonmenu::inlinemenu().$form);
+    $r->print(&Apache::lonmenu::inlinemenu());
     $r->print(&Apache::loncommon::end_page());
     return OK;
 }