Note

It is also possible to put the map definition in a separate file by including that file's name in the USEMAP attribute, like this:

<IMG SRC=="/thisthat.gif" USEMAP="maps.htm#thisthat">

For instance, if you used an image map on every page in your Web site, you could just put the <MAP> and <AREA> tags for it on one page instead of repeating it on every single page where the image map appeared.