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

var	menu3	=	ms.addMenu(document.getElementById("mainmenu3"));
menu3.addItem("提取物系列",	"/userlist/jsdfdwyy/text-12771.html","");
menu3.addItem("口服液系列",	"/userlist/jsdfdwyy/text-12772.html","");
menu3.addItem("西药类系列",	"/userlist/jsdfdwyy/text-12773.html","");
menu3.addItem("冲剂类系列",	"/userlist/jsdfdwyy/text-12774.html","");
menu3.addItem("粉散剂系列",	"/userlist/jsdfdwyy/text-12775.html","");

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