if (mtDropDown.isSupported()) {

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

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("<font color=white>公司简介</font>","Aboutus.asp?Title=公司简介"); 
		menu1.addItem("<font color=white>公司资质","comphonor.asp?fenlei=公司资质");
		menu1.addItem("<font color=white>组织结构","Aboutus.asp?Title=组织结构");
		menu1.addItem("<font color=white>公司荣誉","compvisualize.asp");
		
	
//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("<font color=white>产品目录", "product.asp"); 
		menu2.addItem("<font color=white>销售网络", "homemarket.asp"); 
		// send no URL if nothing should happen onclick
	
	
//第三菜单
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("<font color=white>研发历程", "Aboutus.asp?Title=研发历程"); 
		menu3.addItem("<font color=white>科研成果 ", "comphonor.asp?fenlei=科研成果"); 
		menu3.addItem("<font color=white>售后服务 ", "Aboutus.asp?Title=售后服务"); 
		// send no URL if nothing should happen onclick
		
		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("<font color=white>公司新闻", "newsclass.asp?bigclass=新闻动态&smallclass=公司新闻");
		menu4.addItem("<font color=white>行业动态", "newsclass.asp?bigclass=新闻动态&smallclass=行业动态");
		// menu : 4
		// menu : ５
		var menu5 = ms.addMenu(document.getElementById("menu5"));
		menu5.addItem("<font color=white>访客留言", "#");
		menu5.addItem("<font color=white>查看留言", "#");
		// menu : 5
mtDropDown.renderAll();
	}