Can somebody help me find this script?

[tivaelydoc]

I'm looking for a java code that load, let's say, font size 6 for FF and size 8 for IE. Also, I'm looking for a script, like digg.com, where if you press a certain combo of buttons something happens. Last, i'm looking for a auto size script for my pop up iframes.

My site so far:

http://iloveruby.freehostia.com/index.htm