public boolean onClickDefault(Polygon polygon, MapView mapView, GeoPoint eventPos) {
		polygon.setInfoWindowLocation(eventPos);
		polygon.showInfoWindow();
		return true;
	}
public boolean onClickDefault ( Polygon polygon , MapView mapView , GeoPoint eventPos ) { polygon . setInfoWindowLocation ( eventPos ) ; polygon . showInfoWindow ( ) ; return true ; }
default behaviour when no click listener is set