function load() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map"));
        map.addControl(new GSmallMapControl());
        map.addControl(new GMapTypeControl());
        map.setCenter(new GLatLng(29.9431,121.6804), 15);
		var point=new GLatLng(29.9431,121.6854);
		map.setCenter(point,15);
		var marker=new GMarker(point);
		map.addOverlay(marker);
		GEvent.addListener(marker,'click',addMessage);
		}   
		function addMessage(){
			var message='No.495 ZhenNing East Road zhenhai district China';
			var msgNode=document.createTextNode(message);
			map.openInfoWindow(point,msgNode);
		}
    }