--- tabs.js	2008-04-14 11:35:30.000000000 -0700
+++ tabs_new.js	2009-01-27 23:35:54.000000000 -0800
@@ -1,5 +1,13 @@
 // $Id: tabs.js,v 1.4 2008/04/14 18:35:30 nedjo Exp $
 
+Drupal.behaviors.tabsErrors = function (context) {
+  $('.drupal-tabs ul').children('li').each( function() {
+    if ($($(this).find('a').attr('href')).find('div.form-item .error').size()) {
+      $(this).addClass('error').addClass('active');
+    }
+  })
+};
+
 Drupal.behaviors.tabs = function (context) {
 
   var fx = {duration: Drupal.settings.tabs.speed};