I want to have a webpage displaying an embedded google maps frame with an image (PNG) ground overlay. I want this overlay to be automatically refreshed every 1minute by reloading the PNG from the server.
Additionally, the PNG should be selected based on the actual zoom level.
The map should only update the ground overlay and never refresh any of the page or refresh the map itself. I assume this will have to be done using the Ajax method.
Look forward to your response and would like to see any projects you have worked on that uses this method.