Mouse Overs
There are several ways you can effect a mouse over. (View Source to see how it's done)
First, you can use the CSS way. This works with MSIE 5+, Opera 5+ and Netscape 6+
Alternatively, you can use a JavaScript Rollover that will work just about anywhere:
This second example is achieved by using 2 gif or jpg images.
The key here is to make absolutly sure that the words are in the same place on both images,
and that they are both EXACTLY the same size (including whitespace).