if (mtDropDown.isSupported()) {  var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);  var menu1 = ms.addMenu(document.getElementById("menu1"));
  menu1.addItem("H i s t o r y", "company1.php");
  menu1.addItem("O b j e c t i v  e", "company2.php");

  
  var menu2 = ms.addMenu(document.getElementById("menu2"));
  menu2.addItem("ASPEN Rubber", "product3.php");
  menu2.addItem("XPE", "product4.php");
  menu2.addItem("Fiber Glass", "product5.php");

  mtDropDown.renderAll();
 }