enumObj.moveNext( ) 

function ShowDriveList(){
   var fso, s, n, e, x;                 //Declare variables.
   fso = new ActiveXObject("Scripting.FileSystemObject");
   e = new Enumerator(fso.Drives);      //Create Enumerator object.
   s = "";                              //Initialize s.
   for (; !e.atEnd(); e.moveNext())
   {
      x = e.item();
      s = s + x.DriveLetter;            //Add drive letter
      s += " - ";                       //Add "-" character.
      if (x.DriveType == 3)
         n = x.ShareName;               //Add share name.
      else if (x.IsReady)
         n = x.VolumeName;              //Add volume name.
      else
         n = "[Drive not ready]";       //Indicate drive not ready.
      s +=   n + "\n";
   }
   return(s);                           //Return drive status.
}