How is this shaking menu done?

I saw a menu on this website, and would like to do one for myself...

The menu is on the left side of the webpage, and when you move your mouse over the specific areas of the menu, it changes size, and shrinks, then shakes sideways until it goes back to its original form. Can anyone tell me how to do this menu? I am not sure if you can understand what I am asking, so please look at this site to see what I mean...

http://games.amctv.com/bridezillas2005/about.html

As you move your mouse over the menu, well, it does its thing... :P

I tried looking at the source, from View-Source in the menu bar, but it does not show anything, that I am familiar with, I Think it is xml, but I want to know if this is something possible with javascript?

Thanks,

Imperial Spider

The menu in the side bar was made in flash. so it would be an .swf file. I think you can download it and edit it using Flash MX.

I know nothing about flash though mate, sorry.