Tab Content script (v 2.0)

http://www.dynamicdrive.com/dynamici...tabcontent.htm

Hey guys, I can't figure this out, when using this script, is there a way to add more than just 4 tabs? When I add a fifth, the content of the fith tab just stays there, it doesn't disappear with the rest and no matter which tab you click it stays there. I am using this in a different application of the script however, but it should not affect it. I have the tabs as my menu, so instead of navigating away from the page, the content just changes. Anyway, any help is greatly appreciated.

AGR