if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		
		menu1.addItem("  企业简介  ", "info.asp?big=7&small=0&id=337");
        
		menu1.addItem("  组织结构  ", "info.asp?big=7&small=0&id=338");
        
		menu1.addItem("  专利证书  ", "info.asp?big=7&small=0&id=339");
        
		
		var menu2 = ms.addMenu(document.getElementById("menu2"));

		menu2.addItem("  产品展示  ", "product.asp");
		menu2.addItem("  产品特点  ", "proinfo.asp?big=16&small=0&id=355");
		menu2.addItem("  产品规格  ", "proinfo.asp?big=16&small=0&id=355");

		
		var menu3 = ms.addMenu(document.getElementById("menu3"));

		
		menu3.addItem("  关于水垢  ", "info.asp?big=15&small=0&id=364");
        
		menu3.addItem("  除、防垢原理  ", "info.asp?big=15&small=0&id=366");
        
		
		var menu4 = ms.addMenu(document.getElementById("menu4"));

        
		menu4.addItem("  技术动态  ", "info.asp?big=9&small=23");
		
		menu4.addItem("  安装方式  ", "info.asp?big=9&small=25");
		
		menu4.addItem("  常见问题  ", "info.asp?big=9&small=26");
		
		menu4.addItem("  推荐文章  ", "info.asp?big=9&small=50");
		
		var menu5 = ms.addMenu(document.getElementById("menu5"));
        
		menu5.addItem("  石油行业成功案例  ", "info.asp?big=10&small=44");
		
		menu5.addItem("  电力行业成功案例  ", "info.asp?big=10&small=45");
		
		menu5.addItem("  钢铁、化工及其他行业成功案例  ", "info.asp?big=10&small=47");
		
		menu5.addItem("  产品安装现场  ", "info.asp?big=10&small=51");
		

		
	    var menu6 = ms.addMenu(document.getElementById("menu6"));
		
		menu6.addItem("  应用领域  ", "info.asp?big=11&small=0&id=361");
        	
		var menu7 = ms.addMenu(document.getElementById("menu7"));
		
		menu7.addItem("  联系我们  ", "info.asp?big=12&small=0&id=347");
        

		
		mtDropDown.renderAll();
	}