javascript:void(0

I am having a problem on my site with Tabs linking was working fine, have been fixing errors for IE9 and now it wont let me link on the tabs... I'm getting a javascript:void(0) error on the page and it says tabs not defined. HELP.. The Tabs will not display the correct page information. Would really appreciate a little help from the Java gods on this one.

It works OK in Chrome but shows error message it is not working in Firefox or IE8...

http://www.bluespa.com/dysport/

Thanks

javascript != java, and these are java forums. If this is a javascript question I recommend posting your question on a more javascript dedicated forum. Either way, you should post some code which demonstrates the problem clearly