If you have multiple web pages with ILE banners, it gets dificult to change the source code for each banner so the client doesn't get the same one. This script picks a random number evry time the page is reloaded and inserts it into the code, so that the user gets a random ad. Reload this page and you'll see.

If got that, you won't have to worry about ILE banners anymore! Also, if your worried that alot of your banner hits are from non-JavaScript capable browsers, but another HTML copy of the banner inside a pair of 

<noscript></noscript>
.