CSS div issue

Hi everyone! I’m building a web site for a client, and I’m experiencing an issue with the height of a certain div on each page. If you go to the web site below, you’ll see how the colored background div on each page stretches to fit the amount of content in the div. However, I want this div to stretch to vertically fit the browser window regardless of browser resolution (just like the background photo), not just the amount of content. I can get this to work if I set the positioning of that div to “fixed”, but then I loose the vertical scrollbar. I don’t want to loose that scrollbar though, since some people will need it depending on their browser resolution. Any help or suggestions would be appreciated!

http://www.thepipagroup.com/home.html (gibson’s page not up yet!)

Thank you,
Nicole