Using Tables and DHTML for Menus
http://www.hyperwrite.com/Articles/dhtml_and_tables.aspx

Self, Tony
HyperWrite
2005

Abstract:

Dynamic HTML can be used inventively in many ways. Here's a simple way in which tables and DHTML can be used together to provide a menu function. The technique may be used in a frameset, but to keep things simple, we are going to use the table to control 'targets' in an inline frame (or IFRAME).