--- loncom/homework/externalresponse.pm	2005/10/18 15:33:55	1.6
+++ loncom/homework/externalresponse.pm	2007/04/18 00:19:37	1.7
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # external style responses
 #
-# $Id: externalresponse.pm,v 1.6 2005/10/18 15:33:55 albertel Exp $
+# $Id: externalresponse.pm,v 1.7 2007/04/18 00:19:37 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -97,6 +97,10 @@ sub end_externalresponse {
 	    }
 	}
     }
+    if ($target eq 'web') {
+	&Apache::response::setup_prior_tries_hash(\&format_prior_response);
+    }
+
     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
 	$target eq 'tex' || $target eq 'analyze') {
 	&Apache::lonxml::increment_counter($increment);
@@ -105,6 +109,12 @@ sub end_externalresponse {
     return $result;
 }
 
+sub format_prior_response {
+    my ($mode,$answer) =@_;
+    return '<span class="LC_prior_external">'.
+	    &HTML::Entities::encode($answer,'"<>&').'</span>';
+}
+
 1;
 __END__