--- loncom/homework/outputtags.pm	2005/10/11 10:48:23	1.39
+++ loncom/homework/outputtags.pm	2005/11/03 11:12:37	1.41
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # tags that create controlled output
 #
-# $Id: outputtags.pm,v 1.39 2005/10/11 10:48:23 foxr Exp $
+# $Id: outputtags.pm,v 1.41 2005/11/03 11:12:37 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -29,13 +29,16 @@
 package Apache::outputtags; 
 
 use strict;
+use Apache::lonlocal;
 use Apache::lonnet;
 use POSIX qw(strftime);
 
 BEGIN {
     &Apache::lonxml::register('Apache::outputtags',('displayduedate','displaytitle','displayweight','displaystudentphoto'));
 }
-
+#  Empties the hash of tags that have already been displayed
+#  that should only be displayed once.
+#
 sub initialize_outputtags {
     %Apache::outputtags::showonce=();
 }
@@ -51,9 +54,11 @@ sub start_displayduedate {
     if (exists($Apache::outputtags::showonce{'displayduedate'})) {
 	if (grep(/^\Q$Apache::inputtags::part\E$/,
 		 @{$Apache::outputtags::showonce{'displayduedate'}})) {
-	    return '';
+	    return '';		# Already shown the duedate for this part.
 	}
     }
+    # since we will show the duedate for this part, remeber it.
+
     push (@{$Apache::outputtags::showonce{'displayduedate'}},
 	  $Apache::inputtags::part);
 
@@ -92,6 +97,9 @@ sub start_displayduedate {
 	$result=&Apache::edit::tag_start($target,$token);
 	$result.='</td></tr>';
 	$result.=&Apache::edit::end_table();
+    } elsif {$target eq 'tex'} {
+	# print target.
+	$result ='';		# Stubbed off for now.
     }
     return $result;
 }