Multi-layer blur effect

I am wondering if anyone know how to make a multi-layer blur effect. I have Flash 8 and want to do a full screen blur that covers many layers with images, text, masks, and MC’s. Here is a site that will give a visual on what I am refering to:

www.firstbornmultimedia.com go to the portfolio part, select a thumbnail, and then click on the project to get more information and the background screen is blurred.

Thanks for the help!!!