Here's a fun bit of code that will liven up any website, so long as the page you're viewing has graphics.
Try it out by going to the smilies page
and pasting the above code into your address bar and press enter! Whee!
Here's another neat trick! Add that code to one of your favorites and you can click on the favorite and it will activate the code on any page you're viewing! Double Whee!
Here's another trick! Enter in the code more than once (by clicking that favorite multiple times) and it will do even crazier things! Triple Whee!