if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
		
		var menu3 = ms.addMenu(document.getElementById("menu3"));

		menu3.addItem("园区介绍", "yqhj/park.asp?topic=园区介绍");

		menu3.addItem("发展规划", "yqhj/park.asp?topic=发展规划");

		menu3.addItem("大事记", "yqhj/park.asp?topic=大事记");

		menu3.addItem("部门设置", "yqhj/park.asp?topic=部门设置");
		
		menu3.addItem("园区文化", "yqhj/park.asp?topic=园区文化");
		
		menu3.addItem("电子地图", "http://map.baidu.com/#sid=MAPIHMHICPXNHBTICNYNC&bs=0531_0&ct=40&word=%C6%EB%C2%B3%C8%ED%BC%FE%D4%B0&fr=10");
		
		var menu4 = ms.addMenu(document.getElementById("menu4"));

		menu4.addItem("留言板", "code/write.asp");

		menu4.addItem("常见问题", "zone/showzone.asp?topic=常见问题");
		
		menu4.addItem("经验交流", "zone/showzone.asp?topic=经验交流");
		
		


		mtDropDown.renderAll();
	}