How to strech the red part to all of the page length (almost 100% height)?

I spent hours on google, and found out how to make rounded corners without images :slight_smile:
Now I would like to know how can I strech the red zone, to be almost 100% height, even if he containt only a few lines,
So the red part height will strech to almost 100% height, the “Footer” will be always at the buttom of the browser, right after the end of the red zone.

[COLOR=#800080]http://img2.timg.co.il/forums/1_120959261.html[/COLOR]