if (mtDropDown.isSupported()) {
  var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
  var menu1 = ms.addMenu(document.getElementById("menu1"));
  menu1.addItem("  校史沿革 ", "../../html/xsyg/index.html");
  menu1.addItem("  校情简介", "../../html/xqjj/index.html");
  menu1.addItem("  学校领导", "../../html/xxld/index.html");
  menu1.addItem("  机构设置", "../../html/jgsz/index.html");
  menu1.addItem("  学院风光", "../../html/xyfg/index.html");
  var menu2 = ms.addMenu(document.getElementById("menu2"));
  menu2.addItem("  文明创建", "../../html/wmcj/index.html");
  menu2.addItem("  思政工作", "../../html/szgz/index.html");
  menu2.addItem("  廉政建设", "../../html/lzjs/index.html");
  menu2.addItem("  群众生活", "../../html/qzsh/index.html");
  menu2.addItem("  支部建设", "../../html/zbjs/index.html");
  var menu3 = ms.addMenu(document.getElementById("menu3")); 
  menu3.addItem("   汽车工程系", "../../html/dqjsyyzy/index.html");
  menu3.addItem("   公路工程系", "../../html/jsjjyyzy/index.html");
  menu3.addItem("   信息工程系", "../../html/glyqlzy/index.html");  
  menu3.addItem("   机电工程系", "../../html/skjsyy/index.html");
  menu3.addItem("   公共管理系", "../../html/jsjwljs/index.html"); 
  var menu4 = ms.addMenu(document.getElementById("menu4"));
  menu4.addItem("  信息工程系实训室建设", "../../html/xxgcxsxsjs/index.html");
  menu4.addItem("  机电工程系实训室建设", "../../html/jdgcxsxsjs/index.html");
  menu4.addItem("  公路工程系实训室建设", "../../html/glgcxsxsjs/index.html");
  menu4.addItem("  汽车工程系实训室建设", "../../html/qcgcxsxsjs/index.html");
  menu4.addItem("  公共管理系实训室建设", "../../html/ggglxsxsjs/index.html");
  menu4.addItem("  教师队伍", "../../html/jsdw/index.html");
  var menu5 = ms.addMenu(document.getElementById("menu5"));
  menu5.addItem("  招生就业新闻", "../../html/zsjyxw/index.html");
  menu5.addItem("  新生录取", "../../html/xslq/index.html");
  menu5.addItem("  招生报名", "../../html/zsbm/index.html");
  menu5.addItem("  就业信息反馈", "../../html/jyxxfk/index.html");
  menu5.addItem("  招生简章", "../../html/zsjz/index.html");
  menu5.addItem("  就业指导", "../../html/jyzd/index.html");
  menu5.addItem("  毕业生风采", "../../html/bysfc/index.html");
  menu5.addItem("  在线问答", "Message.aspx");  
  var menu6 = ms.addMenu(document.getElementById("menu6"));
  menu6.addItem("  学生会", "../../html/xsh/index.html");
  menu6.addItem("  学生活动", "../../html/xshd/index.html");
  menu6.addItem("  学生管理", "../../html/xsgl/index.html");
  menu6.addItem("  学生社团", "../../html/qxhbsyh/index.html");
  var menu7 = ms.addMenu(document.getElementById("menu7"));
  menu7.addItem("  校内公告", "../../html/xngg/index.html");
  menu7.addItem("  学院新闻", "../../html/xyxw/index.html");
  menu7.addItem("  图片快递", "../../html/tpxw/index.html");
  menu7.addItem("  视频新闻", "../../html/spxw/index.html");
  menu7.addItem("  综合新闻", "../../html/zhxw/index.html");
  menu7.addItem("  滚动新闻", "../../html/gdxw/index.html");
  var menu8 = ms.addMenu(document.getElementById("menu8"));
  menu8.addItem("  教学活动", "../../html/jxhd/index.html");
  menu8.addItem("  教育管理", "../../html/jygl/index.html");
  menu8.addItem("  成人教育", "../../html/crjy_jx/index.html");
  menu8.addItem("  教学科研", "../../html/jxky/index.html");
  menu8.addItem("  教研活动", "../../html/jyhd/index.html");
  menu8.addItem("  教学研究", "../../html/jxyj_jx/index.html");
  var menu9 = ms.addMenu(document.getElementById("menu9"));
  menu9.addItem("  学院相关资料", "../../html/xyxgzl/index.html");
  menu9.addItem("  学院会议资料", "../../html/xyhyzl/index.html");
  menu9.addItem("  领导讲话", "../../html/ldjh/index.html");
  menu9.addItem("  荣誉榜", "../../html/ryb/index.html");
  var menu10 = ms.addMenu(document.getElementById("menu10"));
  menu10.addItem("  办公电话", "../../html/bgdh/index.html");
  menu10.addItem("  校企名录", "../../html/xqml/index.html");
  menu10.addItem("  校友录", "../../html/xyl/index.html"); 
  menu10.addItem("  教师登录", "../../SystemSoftwareEngineering/adminlogin.aspx"); 
  menu10.addItem("  企业登录", "../../SystemSoftwareEngineering/Employment/adminlogin.aspx ");
  menu10.addItem("  新闻登录", "../../manage/login.aspx");
  menu10.addItem("  综合管理信息系统内部登陆", "http://192.168.30.200:90");
  menu10.addItem("  综合管理信息系统外部登陆", "http://60.223.239.121:90");
  mtDropDown.renderAll();
 }