--- loncom/homework/chemresponse.pm	2005/07/01 19:48:46	1.61
+++ loncom/homework/chemresponse.pm	2005/07/05 10:06:34	1.62
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # chemical equation style response
 #
-# $Id: chemresponse.pm,v 1.61 2005/07/01 19:48:46 albertel Exp $
+# $Id: chemresponse.pm,v 1.62 2005/07/05 10:06:34 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -317,7 +317,7 @@ sub start_organicstructure {
 	my $texwidth=&Apache::lonxml::get_param('texwidth',$parstack,$safeeval,undef,1);
 	my $webwidth=&Apache::lonxml::get_param('width', $parstack, $safeeval);
 	my $webheight=&Apache::lonxml::get_param('height', $parstack, $safeeval);
-	if ($webheight) { $webheight = $webwidth; }
+	if (!$webheight) { $webheight = $webwidth; }
 	if (!$texwidth) { $texwidth='90'; }
 	$result = "%DYNAMICIMAGE:$webwidth:$webheight:$texwidth\n";
 	my $molecule=&Apache::lonxml::get_param('molecule',$parstack,$safeeval);