--- loncom/homework/imageresponse.pm	2005/06/21 21:00:55	1.71
+++ loncom/homework/imageresponse.pm	2005/06/22 12:03:23	1.72
@@ -2,7 +2,7 @@
 # The LearningOnline Network with CAPA
 # image click response style
 #
-# $Id: imageresponse.pm,v 1.71 2005/06/21 21:00:55 albertel Exp $
+# $Id: imageresponse.pm,v 1.72 2005/06/22 12:03:23 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -347,7 +347,7 @@ sub start_foil {
     if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
 	$target eq 'analyze') {
 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
-	if (!$name) {
+	if ($name eq "") {
 	    &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
 	    $name=$Apache::lonxml::curdepth;
 	}