--- loncom/interface/loncommon.pm	2014/05/16 18:36:05	1.1075.2.73
+++ loncom/interface/loncommon.pm	2014/05/22 12:26:49	1.1075.2.74
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1075.2.73 2014/05/16 18:36:05 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.74 2014/05/22 12:26:49 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -15630,6 +15630,26 @@ sub cleanup_html {
     return $outgoing;
 }
 
+# Checks for critical messages and returns a redirect url if one exists.
+# $interval indicates how often to check for messages.
+sub critical_redirect {
+    my ($interval) = @_;
+    if ((time-$env{'user.criticalcheck.time'})>$interval) {
+        my @what=&Apache::lonnet::dump('critical', $env{'user.domain'},
+                                        $env{'user.name'});
+        &Apache::lonnet::appenv({'user.criticalcheck.time'=>time});
+        my $redirecturl;
+        if ($what[0]) {
+            if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
+                $redirecturl='/adm/email?critical=display';
+                my $url=&Apache::lonnet::absolute_url().$redirecturl;
+                return (1, $url);
+            }
+        }
+    }
+    return ();
+}
+
 # Use:
 #   my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
 #