function initialize() {
      if (GBrowserIsCompatible()) {
        // define the crosshair tile layer and its required functions
        var crossLayer = new GTileLayer(new GCopyrightCollection(""), 0, 15);
        crossLayer.getTileUrl =  function(tile, zoom) {
          return "./include/tile_crosshairs.png";
        }
        crossLayer.isPng = function() {return true;}

        // Create a new map type incorporating the tile layer
        var layerTerCross = [ G_PHYSICAL_MAP.getTileLayers()[0], crossLayer ];
        var mtTerCross = new GMapType(layerTerCross, G_PHYSICAL_MAP.getProjection(), "Ter+");

        var map = new GMap2(document.getElementById("map"), { size: new GSize(600,400) } );
        map.addMapType(G_PHYSICAL_MAP);
        map.addMapType(mtTerCross);
        map.setCenter(new GLatLng(48.852704, 2.345421), 16);
        map.addControl(new GSmallMapControl())
		
		var mapControl = new GHierarchicalMapTypeControl();
        
        // Set up map type menu relationships
        mapControl.clearRelationships();
        mapControl.addRelationship(G_SATELLITE_MAP, G_HYBRID_MAP, "Labels", false);
        mapControl.addRelationship(G_PHYSICAL_MAP, mtTerCross, "Crosshairs");
  
        // Add control after you've specified the relationships
        map.addControl(mapControl);
		
		
		// Create a base icon for all of our markers that specifies the
		// shadow, icon dimensions, etc.
		var baseIcon = new GIcon();
		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);
		baseIcon.infoShadowAnchor = new GPoint(18, 25);

		var point = new GLatLng(48.852704, 2.345421);

		var letteredIcon = new GIcon(baseIcon);
		letteredIcon.image = "http://www.google.com/mapfiles/markerH.png";

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

		map.addOverlay(marker);

	    }
	}

    function load() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map"));
        map.setCenter(new GLatLng(48.852704, 2.345421), 13);
      }
    }