It's basically one image but i want different URLs for 3 different parts. g on various parts so the image mapping looks interesting. Is that a Mozilla HTML extension? Mind you, i see it's restricted to a certain point on the screen so assumes the image is fixed in one location?
No, it's part of the W3 spec so it's available in all browsers.
It's not mapped to a point on the screen but to certain points on the image. If you move the image around the page, the points stay fixed to wherever they were on the image.
Made a quick example for you:
http://jsfiddle.net/wnp8hkj1/ (the link is over your name text)
Edit: I got beaten to it.
Quick example of mapping with your sig above, it basically works on cordinates, I think it works coords="MARGIN-LEFT, MARGIN-TOP, WIDTH OF HOTSPOT, HEIGHT OF HOTSPOT"
It works out as follows:
shape="rect" coords="x1, y1, x2, y2"
shape="circ" coords="x, y, r"
shape="poly" coords="x1, y1, x2, y2, ..., xn, yn"