--- C:/Documents and Settings/Sina/Local Settings/Temp/supernav.module-revBASE.svn002.tmp.module	Fri Jun 06 11:32:35 2008
+++ D:/Developing/Projects/Ace Rainbow/site/weblog/sites/all/modules/supernav/supernav.module	Fri Jun 06 11:24:44 2008
@@ -1244,18 +1244,25 @@
 
     // Add this page to history
      $script .= "  
-        function supernav_history() {                           
-          $.ajax({
-              url: '". url('supernav_history') ."',
-              type: 'POST', 
-              data: 'url=' + window.parent.supernav_right.location.href + '&title=' + document.title + '&action=load',
-              error: function(){
-                  alert('There was a problem adding history.');
-              },
-              success: function(msg){
-                parent.frames['supernav_left'].$('.supernav-history-content').html(msg); 
-              }
-          });
+        function supernav_history() {
+      	  var myUrl='';
+          try {
+          	myUrl=window.parent.supernav_right.location.href;
+          } catch (e) {
+          }
+		  if (parent.frames['supernav_left']) {
+	          $.ajax({
+	              url: '". url('supernav_history') ."',
+	              type: 'POST', 
+	              data: 'url=' + myUrl + '&title=' + document.title + '&action=load',
+	              error: function(){
+	                  alert('There was a problem adding history.');
+	              },
+	              success: function(msg){
+	                parent.frames['supernav_left'].$('.supernav-history-content').html(msg); 
+	              }
+	          });
+		  }
         }  
         ";
       if ($settings['user_num_history'] === FALSE) {