Crashes Firefox browser

1) Script Title:
Tab Content
2) Script URL (on DD):
http://www.dynamicdrive.com/dynamici...tabcontent.htm
3) Describe problem:
It works well on IE 6 and Opera 9 and seems to work in Firefox 2.0.0.4, however, in Firefox if you successively click different tabs Firefox crashes. A very stripped down version to test can be found at:
http://simplycyber.com/tabs/test.html
Click each tab in sequence and the start again. Depending on how quickly you click, Firefox will crash after the second Tab2 (click quickly) or a couple later if clicking slowly (4 seconds between clicks).
I love this script and want to use it, but if it crashes on Firefox it's a major problem.

. . . The link does not work. . .

The correct link is: http://simplycyber.com/test/test.html