One to the image map handler, and one to the page it will refer you to. Finally, server-side image maps mean you have to keep track of an extra factor when publishing Web pages, as you have to keep the image map handlers on your server up to date. All of these problems are solved with client-side image maps. To specify a client-side image map, you use the MAP element. Specifies the shape of the area.
Possible values are rect , circle , poly and default .
Specifies the co-ordinates that define the area's shape. The precise interpretation of these depends on the shape. If present, specifies that the area does not link to any resource. Copyright 2001 INT Media Group, Incorporated All Rights Reserved.