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

var	menu2	=	ms.addMenu(document.getElementById("mainmenu2"));
menu2.addItem("经营理念",	"/userlist/nyjdgy/text-6041.html","");
var	menu7	=	ms.addMenu(document.getElementById("mainmenu7"));
menu7.addItem("热熔连接步骤",	"/userlist/nyjdgy/text-10213.html","");
menu7.addItem("铝塑复合管连接方法",	"/userlist/nyjdgy/text-10214.html","");
menu7.addItem("铝塑PP-R复合管连接方法",	"/userlist/nyjdgy/text-10215.html","");
menu7.addItem("PVC-U给水管连接方法",	"/userlist/nyjdgy/text-10216.html","");
menu7.addItem("PVC-U新型复合排水管连接方法",	"/userlist/nyjdgy/text-10217.html","");
menu7.addItem("PP-R管道系统连接方法",	"/userlist/nyjdgy/text-10218.html","");

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