--- loncom/homework/lonhomework.pm	2002/04/09 04:46:33	1.76
+++ loncom/homework/lonhomework.pm	2002/04/11 16:02:32	1.77
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.76 2002/04/09 04:46:33 albertel Exp $
+# $Id: lonhomework.pm,v 1.77 2002/04/11 16:02:32 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -472,7 +472,7 @@ sub handler {
   # some times multiple problemmodes are submitted, need to select
   # the last one
   if ( defined($ENV{'form.problemmode'}) &&
-       defined(@{ $ENV{'form.problemmode'} })) {
+       ref($ENV{'form.problemmode'}) ) {
     my $mode=$ENV{'form.problemmode'}->[-1];
     undef $ENV{'form.problemmode'};
     $ENV{'form.problemmode'}=$mode;