function initialize() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(55.03312, -1.5147), 4);
        map.setUIToDefault();

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

          // Set up our GMarkerOptions object
          markerOptions = { icon:letteredIcon };
          var marker = new GMarker(point, markerOptions);
          GEvent.addListener(marker, "click", function() {
		      
          marker.openInfoWindowHtml("Hello");
          });
		  
		  
          return marker;
        }
		
		
        for (var i = 0; i < 1; i++) {
		  map.addOverlay(createMarker(new GLatLng (55.03312, -1.5147), i));
        }
      }
    }