How do I highlight parts of an imagemap on mouseover?

Question

I need to display an imagemap with about 70 areas in it. The area of the imagemap the mouse cursor is currently at is supposed to be highlighted in a certain color.

Answer 1

I don't know if there's a cool way to do it, but you could take your picture as background image of a block element, overlay it with a transparent picture and your image map and then replace this transparent picture on a mouseover event with a picture the area is highlighted in.

On the downside you'll need 70 images of highlighted areas