Ajax Links on ASP page - not working

I have a ASP Page and thought I'd try this out

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

Except using an external JS file, however I just can not get the links to work.

In IE I get "Error on Page" in the status bar.

Any suggestions?

Problem solved.

The contentarea I had set as a div class and it needed to be div id.