Here is a great little script for rotating banners throughout your website.
The code in the text box below can be copied and pasted into a simple text editor and
saved, as is, as banner.js. Within this code you will notice that it is set up with three banners,
each linked to a different url. You can have as many ads in this simple rotator as you wish, just
add them following the same format as the ones shown. Also, ensure you change the var ad_count number from
3 to however many ads you have in the rotation.