if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
		
		// menu : 1
		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- 总院简介","gywm.php?id=56");
		menu1.addItem("- 管理团队","gywm.php?id=58");
		menu1.addItem("- 组织机构","gywm.php?id=36");
		menu1.addItem("- 资质荣誉","gywm.php?id=35");
		menu1.addItem("- 历史沿革","gywm.php?id=34");
		menu1.addItem("- 核心理念","gywm.php?id=55");
		menu1.addItem("- 文化活动","gywm.php?id=57");
	
		// menu : 2
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 通知公告", "xwdt.php?mainCategory=xwdt&secCategory=通知公告"); 
		menu2.addItem("- 总院动态", "xwdt.php?mainCategory=xwdt&secCategory=总院动态"); 
		menu2.addItem("- 行业新闻", "xwdt.php?mainCategory=xwdt&secCategory=行业新闻"); 
		menu2.addItem("- 国际合作", "xwdt.php?mainCategory=xwdt&secCategory=国际合作"); 
	
		// menu : 3
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		menu3.addItem("- 材料及制品", "jscp.php?mainCategory=js_cp&secCategory=材料及制品");
		menu3.addItem("- 工艺与技术", "jscp2.php");
		menu3.addItem("- 测试仪器", "jscp.php?mainCategory=js_cp&secCategory=测试仪器");
		menu3.addItem("- 成果及专利", "jscp.php?mainCategory=js_cp&secCategory=其他");
		menu3.addItem("- 留言板", "lyb.php");
		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		menu4.addItem("- 研究机构", "yjjg.php");
		//menu4.addItem("- 万方活动", "wfhd.asp");
//		menu4.addItem("- 万方内刊", "wfnk.asp");
		// menu : 5
		var menu5 = ms.addMenu(document.getElementById("menu5"));
		menu5.addItem("- 出版物", "cbw.php?id=44");
		//menu5.addItem("- 研发成果", "cbw.php?id=45");
		//menu5.addItem("- 学会与刊物", "cbw.php?id=46");
		// menu : 6
		var menu6 = ms.addMenu(document.getElementById("menu6"));
		menu6.addItem("- 求才纳贤", "rlzy.php?mainCategory=rlzy&secCategory=求才纳贤");
		menu6.addItem("- 最新动态", "rlzy.php?mainCategory=rlzy&secCategory=最新动态");
		menu6.addItem("- 人才队伍", "rlzy.php?mainCategory=rlzy&secCategory=人才队伍");
		menu6.addItem("- 两院院士", "rlzy2.php?mainCategory=rlzy&secCategory=两院院士");
		<!--menu6.addItem("- 研究生教育", "http://219.234.197.226/cisriyjs/app/");-->
		mtDropDown.renderAll();
	}