call JavaScript function within Google Maps Listener -

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OK, simple question but is it possible to call external javascript function within a Google Map listener? 

  GEvent.addListener (map, "click", function (overlay, latching) {testfunction (latlng);});

If the test is not run, should I go about it in a special way? I'm new to Maps and Javascript.

Try your listener controller with one parameter first: an object that matches latitude / longitude Is where the user clicked on the map.

Try it one early: 

  GEvent.addListener (map, "click", function (latlng) {testfunction (latlng);}); If that does not work, then make sure that your  testfunction  is handling the GLatLng type correctly (the property's property correctly, etc.) .

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