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

var	menu6	=	ms.addMenu(document.getElementById("mainmenu6"));
menu6.addItem("企业风采",	"?action=news|dytax|175|cn|435|424","_blank");

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