function initialize() {
  

      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(45.134647,7.898054), 13);
        var mapTypeControl = new GMapTypeControl();
        var topRight = new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(10,10));
        var bottomRight = new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(10,10));
        map.addControl(mapTypeControl, topRight);
        GEvent.addListener(map, "dblclick", function() {
          map.removeControl(mapTypeControl);
          map.addControl(new GMapTypeControl(), bottomRight);
        });
        map.addControl(new GSmallMapControl());
      }
    }