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

var	menu2	=	ms.addMenu(document.getElementById("mainmenu2"));
menu2.addItem("兴达简介",	"?action=text|55188|1745|cn|10219|10211","_blank");
menu2.addItem("厂长致辞",	"?action=text|55188|1745|cn|10220|10211","_blank");
var	menu4	=	ms.addMenu(document.getElementById("mainmenu4"));
menu4.addItem("生产车间",	"?action=text|55188|1745|cn|10223|10213","_blank");
menu4.addItem("仓库一角",	"?action=text|55188|1745|cn|10224|10213","_blank");
var	menu5	=	ms.addMenu(document.getElementById("mainmenu5"));
menu5.addItem("业内资讯",	"?action=news|55188|1745|cn|10222|10214","_blank");

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