All Levels Navigational Menu lUrl Problems

1)All Levels Navigational Menu

2) http://www.dynamicdrive.com/dynamici...menu/index.htm



3) Describe problem: I am using All Level Navigation Horizantal menu scripts(IE 6) in my code,its working fine, but some times after few click suddenly no link is working (hanging) ,after click link i can see the url of the link in the address bar, but its processing very long time but its not giving any response. its happening if click more links for some time.

Please could you help me in this issue.

Thanks and Regards

preddy