function initialize() {
  if (GBrowserIsCompatible()) {
    var map = new GMap2(document.getElementById("map_canvas"));
    map.setCenter(new GLatLng(43.7085788,7.2842426), 16);
    map.addControl(new GSmallMapControl());
    map.addControl(new GMapTypeControl());

    // Create a base icon for all of our markers that specifies the
    // shadow, icon dimensions, etc.
    var baseIcon = new GIcon(G_DEFAULT_ICON);
    baseIcon.shadow = "http://www.google.com/mapfiles/shadow50.png";
    baseIcon.iconSize = new GSize(20, 34);
    baseIcon.shadowSize = new GSize(37, 34);
    baseIcon.iconAnchor = new GPoint(9, 34);
    baseIcon.infoWindowAnchor = new GPoint(9, 2);

    // Creates a marker whose info window displays the letter corresponding
    // to the given index.
    function createMarker(point, index) {
      // Create a lettered icon for this point using our icon class
      var letter = String.fromCharCode("A".charCodeAt(0) + index);
      var letteredIcon = new GIcon(baseIcon);
      letteredIcon.image = "http://www.google.com/mapfiles/marker" + letter + ".png";

      // Set up our GMarkerOptions object
      markerOptions = { icon:letteredIcon };
      var marker = new GMarker(point, markerOptions);

      GEvent.addListener(marker, "click", function() {
        marker.openInfoWindowHtml("<font color='red'><b>Nice-scoot</b><br />23 route de Turin</font>");
      });
      return marker;
    }

    // Add 10 markers to the map at random locations
      var magasin = new GLatLng(43.7085788,7.2842426);
      map.addOverlay(createMarker(magasin, 0));
  }
}