if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 2, 0, mtDropDown.reference.bottomLeft);

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("灰色主题", "mycolor.asp?style=AAA");  //AAA
		menu1.addItem("青青世界", "mycolor.asp?style=BBB");  //BBB
		menu1.addItem("蓝色昧力", "mycolor.asp?style=CCC");  //CCC
		menu1.addItem("黄金时代", "mycolor.asp?style=DDD");  //DDD
		menu1.addItem("粉色回忆", "mycolor.asp?style=EEE");  //EEE

        mtDropDown.renderAll();
	}