--- loncom/xml/lonxml.pm	2008/08/08 16:50:39	1.484
+++ loncom/xml/lonxml.pm	2009/03/20 20:59:54	1.484.4.2
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.484 2008/08/08 16:50:39 bisitz Exp $
+# $Id: lonxml.pm,v 1.484.4.2 2009/03/20 20:59:54 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -658,6 +658,7 @@ sub setup_globals {
   $Apache::lonxml::request=$request;
   $errorcount=0;
   $warningcount=0;
+  $Apache::lonxml::internal_error=0;
   $Apache::lonxml::default_homework_loaded=0;
   $Apache::lonxml::usestyle=1;
   &init_counter();
@@ -1586,9 +1587,12 @@ FULLPAGE
       my $spelllink .=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
       my $textarea_events = &Apache::edit::element_change_detection();
       my $form_events     = &Apache::edit::form_change_detection();
-      my $htmlerror=&verify_html($filecontents);
-      if ($htmlerror) {
-         $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+      my $htmlerror;
+      if ($filetype eq 'html') {
+          $htmlerror=&verify_html($filecontents);
+          if ($htmlerror) {
+              $htmlerror='<span class="LC_error">'.$htmlerror.'</span>';
+          }
       }
       my $editfooter=(<<ENDFOOTER);
 $initialize
@@ -1828,6 +1832,8 @@ sub error {
 
     $errorcount++;
 
+    $Apache::lonxml::internal_error=1;
+
     if (defined($Apache::inputtags::part)) {
 	if ( @Apache::inputtags::response ) {
 	    push(@errors,
@@ -1854,7 +1860,7 @@ sub error {
 	my ($symb)=&Apache::lonnet::symbread();
 	if ( !$symb ) {
 	    #public or browsers
-	    $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
+	    $errormsg=&mt("An error occurred while processing this resource. The author has been notified.");
 	}
 	my $host=$Apache::lonnet::perlvar{'lonHostID'};
 	push(@errors,
@@ -1893,9 +1899,9 @@ sub error {
 		}
 	    }
 	    if ($env{'request.role.adv'}) {
-		$errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
+		$errormsg=&mt("An error occurred while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
 	    } else {
-		$errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
+		$errormsg=&mt("An error occurred while processing this resource. The instructor has been notified.");
 	    }
 	}
 	push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");