Typical form of a general-purpose click listener ;
GEvent.addListener(map, "click", function(overlay, latlng,
clicklatlng) { .....
If a polygon is clicked, you get the overlay handle and a clicklatlng
object (latlng will be null).
If you've tagged your polygons somehow when creating them, you could
use the tag to look up whatever stuff you want to go in the
infowindow. Then you can open an infowindow on the map, planted at
the clicklatlng.
Remember to have the listener do something sensible (nothing perhaps)
if the bare map is clicked, or a marker or zoom overlay is clicked,
etc.
An alternative approach is to set listeners on each individual poly.
cheers, Ross K
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