if (mtDropDown.isSupported()) {
  var ms = new mtDropDownSet(mtDropDown.direction.down, -4, 6, mtDropDown.reference.bottomLeft);
  var menu1 = ms.addMenu(document.getElementById("menu1"));
  menu1.addItem("&nbsp;&nbsp;Company profile&nbsp;&nbsp;", "../main/aboutus_profile.asp");
  menu1.addItem("&nbsp;&nbsp;Companycn.com&nbsp;&nbsp;", "../main/aboutus_companycn.asp");
  menu1.addItem("&nbsp;&nbsp;Public.net.cn&nbsp;&nbsp;", "../main/aboutus_public.asp");
  menu1.addItem("&nbsp;&nbsp;Departments&nbsp;&nbsp;", "../main/aboutus_department.asp");
  menu1.addItem("&nbsp;&nbsp;Cooperation partner&nbsp;&nbsp;", "../main/aboutus_cooperation.asp");
  menu1.addItem("&nbsp;&nbsp;Certificates&nbsp;&nbsp;", "../main/aboutus_certificates.asp");
  
    var menu2 = ms.addMenu(document.getElementById("menu2"));
  menu2.addItem("&nbsp;&nbsp;Website design service&nbsp;&nbsp;", "../main/service.asp");
  menu2.addItem("&nbsp;&nbsp;Portal Website and System Development Service&nbsp;&nbsp;", "../main/service_2.asp");
  menu2.addItem("&nbsp;&nbsp;IDC Service&nbsp;&nbsp;", "../main/service_3.asp");
  menu2.addItem("&nbsp;&nbsp;Domain name, Host and e-mailbox service&nbsp;&nbsp;", "../main/service_4.asp");
  
  mtDropDown.renderAll();
 }