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

var	menu1	=	ms.addMenu(document.getElementById("mainmenu1"));
menu1.addItem("茶叶销售",	"?action=text|admin|1691|cn|3650|3051","_blank");

			mtDropDown.renderAll();
		}
		//��ʼ�˵�
		window.onload = init;