I just added two pages to a site where people are redirected after form processing (good_url and bad_url). They have such little content on them that they don't take up the entire screen, so the footer floats up. I would like to figure out how to make the footer stick to the bottom of the screen without covering anything on more content heavy pages, or make the enclosing divs for the thankyou/error messages on these two pages expand to take up the entire screen.

Made a JSfiddle for it:
http://jsfiddle.net/yx6my/2/

Dev site can be viewed at http://iphonebuy-host1.gaiahost.net.

If you want to see the error page try http://iphonebuy-host1.gaiahost.net/...2pgdpkf58p2di3

Thanks for looking!