if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("  路由器","Product.asp?BigClassName=路由器");
		menu1.addItem("  交换机","Product.asp?BigClassName=交换机");
		menu1.addItem("  模块","Product.asp?BigClassName=模块");
		menu1.addItem("  语音网关","Product.asp?BigClassName=语音网关");
		menu1.addItem("  电源","Product.asp?BigClassName=电源");
		menu1.addItem("  其他配件","Product.asp?BigClassName=其他配件");
	
	var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("  弱点工程","Shownews2.asp?ID=137");
		menu2.addItem("  楼宇对讲","Shownews2.asp?ID=130");
		menu2.addItem("  门禁考勤","Shownews2.asp?ID=131");
		menu2.addItem("  系统集成","Shownews2.asp?ID=132");
		menu2.addItem("  机房建设","Shownews2.asp?ID=133");
		menu2.addItem("  综合布线","Shownews2.asp?ID=134");
		menu2.addItem("  安防监控","Shownews2.asp?ID=135");
		menu2.addItem("  无线网络","Shownews2.asp?ID=136");
		
		mtDropDown.renderAll();
	}