--- loncom/interface/loncommon.pm	2002/08/01 16:48:21	1.48
+++ loncom/interface/loncommon.pm	2002/08/07 15:39:58	1.49
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.48 2002/08/01 16:48:21 bowersj2 Exp $
+# $Id: loncommon.pm,v 1.49 2002/08/07 15:39:58 ng Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1093,7 +1093,7 @@ sub get_previous_attempt {
 	} else {
 	  $value=$lasthash{$_};
 	}
-	if ($_ =~/$regexp$/) {$value = &$gradesub($value)}
+	if ($_ =~/$regexp$/ && (defined &$gradesub)) {$value = &$gradesub($value)}
 	$prevattempts.='<td>'.$value.'&nbsp;</td>';
       }
       $prevattempts.='</tr></table></td></tr></table>';