Frontend - javascript interface for selecting different parts of a vehicle

Hi, I need a simple html page, the page has a picture of a car in it, and by clicking different parts of the car, it opens a js window (not popup window) with some argument, so I know which part has been clicked. - please note that the boundaries are not rectangles. (arbitrary curves) - when mouse goes over a part that part gets a different color (or you can replace it with a different image) - the page should not bevery heavy. (I don't want a heavy flash file) - use jQueryUI if it is possible That was all!! Thanks in advance!