function showAddress(address) {    
    if (geocoder) {
        geocoder.getLatLng(
        address,
        function(point) {
            if (!point) {
                alert(address + " - Nie znaleziono adresu");
            } else {
                map.setCenter(point, 16);
                map.clearOverlays();
                var marker = new GMarker(point);
                $("#pos_y").val(point.x);
                $("#pos_x").val(point.y);
                map.addOverlay(marker);
            }
        }
              );
    }
}

$("#pos_y").val(point.x);
                 $("#pos_x").val(point.y);