--- loncom/homework/response.pm	2006/06/28 21:12:50	1.142
+++ loncom/homework/response.pm	2006/07/14 18:40:41	1.143
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # various response type definitons response definition
 #
-# $Id: response.pm,v 1.142 2006/06/28 21:12:50 albertel Exp $
+# $Id: response.pm,v 1.143 2006/07/14 18:40:41 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -989,7 +989,7 @@ sub add_to_gradingqueue {
 # a return of 3 means it after the answer date
 sub check_status {
     my ($id)=@_;
-    if (!$id) {	$id=$Apache::linputtags::part; }
+    if (!defined($id)) { $id=$Apache::inputtags::part; }
     my $curtime=&Apache::lonnet::EXT('system.time');
     my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
     my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");