pop up using javascript

[livedomainsearch]

Hi, I wondering how this site is doing the pop up: http://www.hostrocket.com/ - can someone point me in the right direction?

Thank you!

[rene7705]

2 divs, 1 semi-transparent black one to go over the entire page, and one advertising div nicely centered.

[Notting]

its quite a nice little feature actually. Notting