function initialize() {
  var map = new GMap2(document.getElementById("map_canvas"));
  map.setCenter(new GLatLng(47.3823, 16.78673), 13);
  
  var latlng = new GLatLng(47.3808, 16.78690);
  map.addOverlay(new GMarker(latlng));
  
  map.addControl(new GSmallMapControl());
  map.addControl(new GMapTypeControl());
  
}