By the way, these buttons DO NOT link to anything....they are just a demonstration of the tooltip that is displayed when you move your mouse over them.

This demonstrates another way to present data on a Web page. As your mouse passes over the individual links on the left, a short description pops-up on the right. You can choose to include Hypertext links in the description area as well as the links on the left. You'll have to change the content array and the script menu to suit your needs once you copy the source code.

Script from www.dynamicdrive.com