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

var	menu1	=	ms.addMenu(document.getElementById("mainmenu1"));
menu1.addItem("阀门的分类",	"/userlist/blog/text-2214.html","");
menu1.addItem("阀门名词解释",	"/userlist/blog/text-2215.html","");
menu1.addItem("阀门型号大全",	"/userlist/blog/text-2216.html","");
menu1.addItem("阀门的阀芯编制大全",	"/userlist/blog/text-2217.html","");
menu1.addItem("中国的阀门行业发展情况",	"/userlist/blog/text-2218.html","");
menu1.addItem("阀门公称压力",	"/userlist/blog/text-2219.html","");
menu1.addItem("阀门导航表",	"/userlist/blog/text-2220.html","");
menu1.addItem("阀门标准目录",	"/userlist/blog/text-2221.html","");
menu1.addItem("阀门保养",	"/userlist/blog/text-2222.html","");
menu1.addItem("阀门的几种用途",	"/userlist/blog/text-2223.html","");
menu1.addItem("阀门产品市场趋势",	"/userlist/blog/text-2224.html","");
menu1.addItem("阀门使用中的常见问题",	"/userlist/blog/text-2225.html","");

			mtDropDown.renderAll();
		}
		//初始菜单
		window.onload = init;