--- loncom/homework/optionresponse.pm	2007/02/22 01:25:31	1.137
+++ loncom/homework/optionresponse.pm	2007/03/01 02:33:28	1.138
@@ -1,7 +1,7 @@
 # LearningOnline Network with CAPA
 # option list style responses
 #
-# $Id: optionresponse.pm,v 1.137 2007/02/22 01:25:31 albertel Exp $
+# $Id: optionresponse.pm,v 1.138 2007/03/01 02:33:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -355,6 +355,27 @@ sub check_for_invalid {
     }
 }
 
+sub setup_prior_tries_hash {
+    my ($whichopt) = @_;
+    my $part=$Apache::inputtags::part;
+    my $id=$Apache::inputtags::response[-1];	
+    foreach my $i (1..$Apache::lonhomework::history{'version'}) {
+	my $key = "$i:resource.$part.$id.submission";
+	next if (!exists($Apache::lonhomework::history{"$key"}));
+	my %lastresponse=
+	    &Apache::lonnet::str2hash($Apache::lonhomework::history{$key});
+	my $output;
+	foreach my $name (@$whichopt) {
+	    next if (!defined($lastresponse{$name}));
+	    $output .= '<td>'.$lastresponse{$name}.'</td>';
+	}
+	next if (!defined($output));
+	$output =
+	    '<table class="LC_optres_prior"><tr>'.$output.'</tr></table>';
+	$Apache::inputtags::submission_display{$key} = $output;
+    }
+}
+
 sub displayfoils {
   my ($target,$max,$randomize,$TeXlayout,@opt)=@_;
   if (!defined(@{ $Apache::response::foilgroup{'names'} })) {return;}
@@ -475,6 +496,11 @@ sub displayfoils {
       }
     }
   }
+
+  if ($target eq 'web') {
+      &setup_prior_tries_hash(\@whichopt);
+  }
+
   if ($target ne 'tex') {
       return $result.$break;
   } else {