--- loncom/homework/radiobuttonresponse.pm	2001/12/14 23:00:52	1.33
+++ loncom/homework/radiobuttonresponse.pm	2002/01/07 18:03:57	1.34
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # mutliple choice style responses
 #
-# $Id: radiobuttonresponse.pm,v 1.33 2001/12/14 23:00:52 albertel Exp $
+# $Id: radiobuttonresponse.pm,v 1.34 2002/01/07 18:03:57 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -153,11 +153,13 @@ sub end_foilgroup {
 sub getfoilcounts {
   my ($parstack,$safeeval)=@_;
   my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
-  my @names = @{ $Apache::response::foilgroup{'names'} };
+  my @names;
   my $truecnt=0;
   my $falsecnt=0;
   my $name;
-
+  if ( $Apache::response::foilgroup{'names'} ) {
+    @names= @{ $Apache::response::foilgroup{'names'} };
+  }
   foreach $name (@names) {
     if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
       $truecnt++;
@@ -195,7 +197,10 @@ sub whichfoils {
   my @truelist;
   my @falselist;
 
-  my @names = @{ $Apache::response::foilgroup{'names'} };
+  my @names;
+  if ( $Apache::response::foilgroup{'names'} ) {
+    @names= @{ $Apache::response::foilgroup{'names'} };
+  }
   foreach my $name (@names) {
     #result.="<br /><b>$name</b> is <i> $Apache::response::foilgroup{$name.'.value'} </i>";
     if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
@@ -256,7 +261,6 @@ sub displayfoils {
 
 sub displayanswers {
   my ($max,$answer)=@_;
-  my @names = @{ $Apache::response::foilgroup{'names'} };
   my @whichopt = &whichfoils($max,$answer);
   my $result=&Apache::response::answer_header('radiobuttonresponse');
   foreach my $name (@whichopt) {