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

var	menu5	=	ms.addMenu(document.getElementById("mainmenu5"));
menu5.addItem("百度竟排",	"?action=text|admin|414|cn|293|281","_blank");
menu5.addItem("Google排名原理",	"?action=text|admin|414|cn|294|281","_blank");
menu5.addItem("搜狐网推广",	"?action=text|admin|414|cn|295|281","_blank");
menu5.addItem("认识搜索引擎优化",	"?action=text|admin|414|cn|296|281","_blank");
menu5.addItem("网站搜索免费登陆口",	"?action=text|admin|414|cn|297|281","_blank");
var	menu17	=	ms.addMenu(document.getElementById("mainmenu17"));
menu17.addItem("边框制作二",	"?action=diyform|admin|414|cn|305|304","_blank");
menu17.addItem("做1像素的细横线或竖线",	"?action=text|admin|414|cn|383|304","_blank");
menu17.addItem("创建表格的基本原则和方法",	"?action=text|admin|414|cn|384|304","_blank");
menu17.addItem("制作1像素宽的细线表格",	"?action=text|admin|414|cn|385|304","_blank");

			mtDropDown.renderAll();
		}
		//��ʼ�˵�
		window.onload = init;