Assertion:
Netscape has never supported external IDs/URLs in the USEMAP
attribute to the IMG element as per the specification (only internal anchors can be used.)
Internet Explorer supports external IDs/URLs from version 1.0 to 3.0, now it does
not support them. Opera has supported external IDs/URLs since version 3.0.
IMG reference, with a map definition in an external document
(map-externalmapdef.htm#myimagemap):
filler text
filler text
Shape destinations on image:
| Shape | URL |
|---|
 |
http://www.yahoo.com/ |
 |
http://www.google.com/ |
 |
http://www.blooberry.com/ |
 |
http://slashdot.org/ |