Does anyone know of any tutorials that show you how to make a scrolling menu that has no visible buttons?

They scroll based on where your mouse is. If you move it to the far left, they scroll quickly left, as you move toward center, they slow down or stop, as you move to the right they speed up and sroll right.

I saw it on http://www.becominghuman.org which has an awesome flash presentation. at the end of each section they have the scrolling menu.