rendile globali
codice:
var lat=0;
var long=0;
function check_city()
{

var place =  $("#city").val();
geocoder = new GClientGeocoder();
geocoder.getLatLng(place, function(point) {
    if (!point) {

        alert("Place not found. Retry!");
		$("#city").val("");
		$('#city').focus(); 	}
        
	else {
		lat = point.y;//qui valorizzi latitudine
		long = point.x;//qui valorizzi longitudine
  }
});
}