if (mtDropDown.isSupported()) {
        var ms = new mtDropDownSet(mtDropDown.direction.down, 10, 0, mtDropDown.reference.bottomLeft);
     
		//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2")); 
		menu2.addItem("－ 直属单位", "http://www.gazx.org/sjs/zsdw.htm");
		menu2.addItem("－ 内设机构", "http://www.gazx.org/sjs/nsjg.htm");
		menu2.addItem("－ 领导介绍", "http://www.gazx.org/sjs/ldjs.htm");
		menu2.addItem("－ 主要职能","http://www.gazx.org/sjs/zyzn.htm");		
//		menu7.addItem("－ 1111111", "/galw/main.asp?ForID=24");
//		var menu8 = ms.addMenu(document.getElementById("menu8"));
//		menu8.addItem("－ 111111111", "/main.asp?ForID=20");
//		menu8.addItem("－ 111111", "/main.asp?ForID=21");
        //var subMenu1 = menu2.addMenu(menu2.items[0]);
        //subMenu1.addItem("－ 111111","/periodical/2007_8.html");
		//subMenu1.addItem("－ 会议纪要","/periodical/2007_8.html");
		//subMenu1.addItem("－ 危险点分析","/periodical/2007_8.html");
        mtDropDown.renderAll();
	}