Same window popup css/java script?

Hey Talent-

I'm interested in a css and javascript that opens a popup box in the same window. Similar to this effect (please click a product):

http://www.patagonia.com/web/us/product/landing.jsp?OPTION=COLLECTIONS_LANDING_PAGE_HANDLER&catcode=MAIN.CLOTHING_GEAR.MENS#yc

Any simple examples you can share will be appreciated.

Thanks.
work-ed

Well, there's thickbox (http://jquery.com/demo/thickbox/), greybox (http://orangoo.com/labs/GreyBox/), and lightbox (http://www.huddletogether.com/projects/lightbox2/); all of which could be customised to suit your needs (although lightbox is normally for images).

well they are using a version of :

http://www.huddletogether.com/projects/lightbox/

that look similar to this:

http://particletree.com/examples/lightbox/

the second on eis based off the first and was written to be able to write a div and content insde the pop up lightbox creates.

Sweet! Thanks for the help... I'm excited to utilize.