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

var	menu7	=	ms.addMenu(document.getElementById("mainmenu7"));
menu7.addItem("互联网与企业",	"/index.php/text/admin/1/cn/857/856.html","");
menu7.addItem("域名相关知识介绍",	"/index.php/text/admin/1/cn/858/856.html","");
menu7.addItem("电子商务ABC",	"/index.php/text/admin/1/cn/861/856.html","");
menu7.addItem("网站维护",	"/index.php/text/admin/1/cn/862/856.html","");
menu7.addItem("建网站完整步骤",	"/index.php/text/admin/1/cn/863/856.html","");

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