if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- 卡片制作","card_pvc.htm"); // send no URL if nothing should happen onclick
		menu1.addItem("- 印卡设备","sb_CS-310.htm"); // send no URL if nothing should happen onclick
		menu1.addItem("- 专用耗材","hc_hiti.htm");
		menu1.addItem("- 读写设备","t600p-u.htm");
		
	
//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 客户服务", "fwnr.htm"); 
		menu2.addItem("- 技术支持", "downloads.htm"); 
		menu2.addItem("- 客户留言", "msg.php"); // send no URL if nothing should happen onclick
	
		// menu : 3
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("- 营运团队", "yytd.htm");
		menu3.addItem("- 人才招聘", "rczp.htm");
	    
		
		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("- 公司简介", "gsjj.htm");
		menu4.addItem("- 活动展览", "hdzl.htm");
		menu4.addItem("- 生产工厂", "scgc.htm");
		menu4.addItem("- 公司资质", "gszz.htm");
		menu4.addItem("- 联系我们", "contactus.htm");
		
		mtDropDown.renderAll();
	}