[Javascript] display text based on co-ordinates on image

[bclark at eccotours.dyndns.org (Brent Clark)]

Hi all

I have a map that I would like to share some comments / text  on, based on the co ordinates of the map.

Obviously I have code like so

<map name="$areaInQuestion">
<area  href="javascript:popup('')"    shape="rect" coords="10,870,90,880" />
</map>

But I cant get the text to display based on the co-ordinate, I cant use onhover or onmouse etc, because there is no link.

I would like to use

http://www.bosrup.com/web/overlib/

With the example of  "Navigations help"

If anyone has any tips or advice, I would be most gratefull.

Kind Regards
Brent Clark