--- loncom/xml/lonxml.pm	2004/04/15 20:18:46	1.317
+++ loncom/xml/lonxml.pm	2004/05/21 21:07:54	1.318
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.317 2004/04/15 20:18:46 albertel Exp $
+# $Id: lonxml.pm,v 1.318 2004/05/21 21:07:54 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -524,6 +524,10 @@ sub inner_xmlparse {
   return $finaloutput;
 }
 
+## 
+## Looks to see if there is a subroutine defined for this tag.  If so, call it,
+## otherwise do not call it as we do not know what it is.
+##
 sub callsub {
   my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $currentstring='';
@@ -556,6 +560,10 @@ sub callsub {
 					     $parstack,$parser,$safeeval,
 					     $style);
       } else {
+          if ($target eq 'tex') {
+              # throw away tag name
+              return '';
+          }
 	#&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
 	if ($metamode <1) {
 	  if (defined($token->[4]) && ($metamode < 1)) {