if (mtDropDown.isSupported()) 
		{
			var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);

var	menu2	=	ms.addMenu(document.getElementById("mainmenu2"));
menu2.addItem("荣誉证书",	"/userlist/nhbxg/text-15775.html","");
var	menu4	=	ms.addMenu(document.getElementById("mainmenu4"));
menu4.addItem("产品规格",	"/userlist/nhbxg/text-15776.html","");
var	menu8	=	ms.addMenu(document.getElementById("mainmenu8"));
menu8.addItem("不锈钢防盗刺应用图",	"/userlist/nhbxg/text-19795.html","");

			mtDropDown.renderAll();
		}
		//初始菜单
		window.onload = init;