The menus would need to be done with a client-side language as opposed to server-side. Therefore, languages such as ASP and PHP are out. The menus here were created with a combination of DHTML and JavaScript. (DHTML for the menu itself, and JavaScript in the HTML code to call the function). Your best bet is to check out www.dynamicdrive.com - they have a bunch of similar working code snippets that will help give you ideas. No better way to learn than by example.