[thelist] hover effect on Image Map areas?

[Stephen Rider]

Hi --

I'm putting together an image map of an apartment building where the 
user can look at a building plan and click on a particular apartment to 
see a blowup of the apartment floor plan.  I would like to use CSS to 
change the background color of the apartment when the user hovers over 
it in the building plan.

Does anyone know of a way to do this?  Is there any way (Javascript, 
whatever) to do this without resorting to image slicing/swapping?  
(which won't work anyway because the apartments are not nice neat 
rectangles....

I tried setting a background color to the area:hover, but that had no 
effect.

Many Thanks,

Steve