Highlight Image Map Areas context menu script
This script is designed to be run as a context menu item, but it can be used on any page by changing
'window.external.menuArguments' to 'window'.
v1.1.0 Updated 9/1/2004 for better tooltips
v1.0.1 Updated 9/1/2004 for IE6 rendering bug and multiple map coordinate bug
Written by Mark Wilton-Jones 4/1/2004