--- loncom/homework/loncapagrade.pm	2005/10/18 14:14:12	1.3
+++ loncom/homework/loncapagrade.pm	2008/11/10 13:43:43	1.5
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # external style responses
 #
-# $Id: loncapagrade.pm,v 1.3 2005/10/18 14:14:12 albertel Exp $
+# $Id: loncapagrade.pm,v 1.5 2008/11/10 13:43:43 jms Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,23 +26,45 @@
 # http://www.lon-capa.org/
 #
 # 1/26 Guy
+
+
+=pod
+
+=head1 NAME
+
+Apache::loncapagrade
+
+=head1 SYNOPSIS
+
+Handler to evaluate externally graded responses.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head2 notes
+
+results of parse end up in here:
+undef(%Apache::loncapagrade::results);
+
+=cut
+
 package Apache::loncapagrade;
 use strict;
 
 #Globals
 # results of parse end up in here
-%Apache::loncapagrade::result=();
+undef(%Apache::loncapagrade::results);
 
 BEGIN {
 #  &Apache::lonxml::register('Apache::loncapagrade',
-#			    ('loncapagrade','awardetail','message'));
+#			    ('loncapagrade','awarddetail','message'));
 }
 
 sub start_loncapagrade {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     my $result;
     if ($target eq 'grade') {
-	%Apache::loncapagrade::results=();
+	undef(%Apache::loncapagrade::results);
 	&Apache::lonxml::register('Apache::loncapagrade',
 				  ('awarddetail','message'));
     }
@@ -54,7 +76,7 @@ sub end_loncapagrade {
     my $result;
     if ($target eq 'grade') {
 	&Apache::lonxml::deregister('Apache::loncapagrade',
-				    ('loncapagrade','awardetail','message'));
+				    ('loncapagrade','awarddetail','message'));
     }
     return $result;
 }