Gaf posted a image mapper tool on his website last year, it is very useful for helping people new to image maps learn or experienced users wanting a quicker way.
Website:
http://gaf210.imvustylez.net/codes/gadg ... mapper.phpIt's easy to use, you just provide a link to an image, the image being your layout. Then you can simply draw boxes around the ares you want to make clickable and input things like the url. When you're done, it will generate all the code for you. I highly recommend it.