if (mtDropDown.isSupported()) {

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

	
//第二菜单

		// menu : 5
		//var menu5 = ms.addMenu(document.getElementById("menu5"));
		//menu5.addItem("- 国内市场", "Sale.htm");
		//menu5.addItem("- 国外市场", "Salea.htm");
	
		mtDropDown.renderAll();
	}