if (mtDropDown.isSupported()) 
		{
			var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
var	menu1	=	ms.addMenu(document.getElementById("mainmenu1"));
menu1.addItem("荣誉展示",	"pic.asp?fl=荣誉展示","_blank");
menu1.addItem("证书查询",	"cha.asp","_blank");

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