Using the Google Maps plugin in Joomla I'm opening a KML map centered on a particular placemark. I'd really like to have that placemark come up opened -- if that's right term -- as if it had been clicked. Please correct me if I'm wrong, but near as I can tell, you can't specify that in a KML file.

I know that the placemark will be centered in the Google Maps iframe, which is centered horizontally on the page, and the placemark will be a consistent distance from the top of the page, so I figure that if I can simulate a click at that location on the page (or at the location within the browser window) the placemark will open immediately. Is there JavaScript or something that would do that?