if (mtDropDown.isSupported()) {

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

		
		//产品展示
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 冷却塔填料系列","cpxl.htm");
		menu2.addItem("- 玻璃钢冷却塔系列","lengqueta.htm");
		menu2.addItem("- 格栅系列","geshan.htm");		
			menu2.addItem("- 玻璃钢托架","tuojia.htm");	

		mtDropDown.renderAll();
	}