DHTML Background changes.....

I am trying to make a cross-browser script that when you mouse over a certin table cell the backgorund of the cell is changed to a different color....kinda like at http://yellowpages.msn.com (the blue menu at the top -- but its not cross browser) I know this is possible because i have seen it in some of the drop down menus....but when i try to disect the script i get errors (i do not know javascript)

Any help would be appreciated.....ryan

When I try to get to the page, I get:
<BLOCKQUOTE><font size="1" face="Verdana,Arial,Helvetica">quote:</font><HR>We could not find the page you requested. You can try to reach it one more time to make sure it's not an isolated error. If that doesn't work, the link may be inaccurate or the page may no longer exist.

Our apologies.

Try to reach the page again

Return to the previous page
[/quote]

Although I can't see the example to which you are referring, and consequently am not positive what you are trying to do exactly, here is something that may help you:
http://www.webreference.com/dhtml/column21/

This is code for a cross-browser hiearchial menu. It's also in the form of a tutorial, so you should be able to find the help you need with JavaScript as well.