if (mtDropDown.isSupported()) {

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

		var about = ms.addMenu(document.getElementById("about"));
		about.addItem("- 公司简介","about.asp"); // send no URL if nothing should happen onclick
		about.addItem("- 公司文化","about_Culture.asp"); // send no URL if nothing should happen onclick
		about.addItem("- 组织机构","about_Structure.asp");
	//	about.addItem("- 研发中心","about_yanfa.asp");
		about.addItem("- 联系我们","contact.asp");	
	
//第二菜单
		var news = ms.addMenu(document.getElementById("news"));
		news.addItem("- 企业新闻", "news_qiye.asp?owen1=企业新闻"); 
		news.addItem("- 业内资讯", "news_yenei.asp?owen1=业内资讯"); // send no URL if nothing should happen onclick
	
		// menu : 3
		var product = ms.addMenu(document.getElementById("product"));
		product.addItem("- 最新产品", "newProduct.asp");
		product.addItem("- 所有产品", "product.asp");
		product.addItem("- 降温原理", "product_jiangwen.asp");
		product.addItem("- 性能特点", "product_xingneng.asp");
		product.addItem("- 适用范围", "product_shiyong.asp");


		
		// menu : 5
		var jingxiao = ms.addMenu(document.getElementById("jingxiao"));
		jingxiao.addItem("- 国内市场", "jingxiao.asp");
		jingxiao.addItem("- 国外市场", "jingxiao2.asp");
	//	jingxiao.addItem("- 代理商协议", "jingxiao3.asp");

		
			
		// menu : 7
		var gongcheng = ms.addMenu(document.getElementById("gongcheng"));
		gongcheng.addItem("- 环保空调室外工程案例 ", "gongcheng.asp?gtype=1");
		gongcheng.addItem("- 环保空调室内工程案例 ", "gongcheng.asp?gtype=2");
        gongcheng.addItem("- 机型选配 ", "gongcheng_jixing.asp");
		gongcheng.addItem("- 安装方式 ", "gongcheng_anzhuang.asp");

		var contact = ms.addMenu(document.getElementById("contact"));
		contact.addItem("- 联系方式 ", "contact.asp");
		contact.addItem("- 留言反馈 ", "feedback.asp");
		contact.addItem("- 网站地图 ", "sitemap.asp");

		
	
		mtDropDown.renderAll();
	}