if (mtDropDown.isSupported()) {
  var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);
  var menu1 = ms.addMenu(document.getElementById("menu1"));
  menu1.addItem("&nbsp;&nbsp;Brand Milestones&nbsp;&nbsp;", "about.asp");
  menu1.addItem("&nbsp;&nbsp;Brand Culture&nbsp;&nbsp;", "culture.asp");
  menu1.addItem("&nbsp;&nbsp;Job Opportunity&nbsp;&nbsp;", "job.asp");

 
  
  var menu2 = ms.addMenu(document.getElementById("menu2"));
  menu2.addItem("&nbsp;&nbsp;Shampoo & Emulsion&nbsp;&nbsp;", "products.asp?pId=1");
  menu2.addItem("&nbsp;&nbsp;Deep Care & Repairing Series&nbsp;&nbsp;", "products.asp?pId=2");
  menu2.addItem("&nbsp;&nbsp;Daily Care & Stylish Series&nbsp;&nbsp;", "products.asp?pId=3");
  menu2.addItem("&nbsp;&nbsp;Perm Series&nbsp;&nbsp;", "products.asp?pId=4");
  menu2.addItem("&nbsp;&nbsp;Body Care Series&nbsp;&nbsp;", "products.asp?pId=5");
  
    var menu3 = ms.addMenu(document.getElementById("menu3"));
  menu3.addItem("&nbsp;&nbsp;Hair Type&nbsp;&nbsp;", "know.asp");
  menu3.addItem("&nbsp;&nbsp;Hair Structure&nbsp;&nbsp;", "know1.asp");
menu3.addItem("&nbsp;&nbsp;Daily Care&nbsp;&nbsp;", "know2.asp");

 var menu4 = ms.addMenu(document.getElementById("menu4"));
  menu4.addItem("&nbsp;&nbsp;Industy News&nbsp;&nbsp;", "news.asp?pId=1");
  menu4.addItem("&nbsp;&nbsp;Our News&nbsp;&nbsp;", "news.asp?pId=2");
   menu4.addItem("&nbsp;&nbsp;Exhibition&nbsp;&nbsp;", "news.asp?pId=3");
  
  mtDropDown.renderAll();
 }