Banner Rotation On Page Reload

here's the file we want as the banner:

http://www.webfile.ws/d/9231/903eced7de8471f4fb308ed7fafd0747/banner2.html

everytime the page is refreshed the image changes =]

i've tried to use it in an iframe in the site description but that doesn't really work plus the rest of the site disappears.

any help?