In this variation, click in the yellow background to go to default size, hover in the cyan center circle to get bigger; and the circles set to different sizes just to do something.
There are many possibilities available by assigning javascript functions to the regions; whether you rescale the image or not. The AREA tag supports the onClick, onDblClick, onMouseDown, onMouseUp, onMouseOver, onMouseMove, onMouseOut, onKeyPress, onKeyDown, onKeyUp, onFocus, and onBlur events.
John S. Urban, Feb 23, 2008
