function load() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map"));
		
		var option={
              position: new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(30, 0))
             ,width   : "30px"
             ,height  : "20px"
           };
var zoomInBtn=new GMapKitButton("大", 
               function(){
                      map.zoomIn();
               }, option);
map.addControl(zoomInBtn);

var option={
              position: new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(0, 0))
             ,width   : "30px"
             ,height  : "20px"
           };
var zoomOutBtn=new GMapKitButton("小", 
               function(){
                      map.zoomOut();
               }, option);
map.addControl(zoomOutBtn);

        map.setCenter(new GLatLng(33.55977, 133.537895), 13);
		
		var marker = new GMarker(new GLatLng(33.55977,133.537895));
　　　　map.addOverlay(marker);

/*GEvent.addListener(marker, "click", function() {
    marker.openInfoWindowHtml("<center>DhuniCrystal</center>");
});　*/
}
}// JavaScript Document