var hMenu = Window.CreateMenu();
   Window.AppendMenu(hMenu,"MF_STRING",8000,"&Open File");
   Window.AppendMenu(hMenu,"MF_STRING",8001,"&Save To File");
   Window.AppendMenu(hMenu,"MF_STRING",8002,"Select &Directory");
   Window.AppendMenu(hMenu,"MF_SEPARATOR",0,"");
   Window.AppendMenu(hMenu,"MF_STRING",8003,"&Exit");
   Window.AppendMenu(0,"MF_POPUP",hMenu,"File");
   Window.DestroyMenu(hMenu); 
   Window.DrawMenuBar();

function WM_COMMAND(id)
{ 

// FileDialog(type,str)
// type: 0 - "Open File"
//       1 - "Save To File"
//       2 - "Browse dir"

switch (id)
{ case 8000: 
  var fread = "File to read:";
  fread += Window.FileDialog(0,"default.txt","E:\\","Text(*.txt)|*.txt||");
  Window.TextOut(0,50,50,fread);
  Window.UpdateWindow();
  break;

  case 8001:
  var fsave = "File to save:";
  fsave += Window.FileDialog(1,
                             "default.txt",
                             "E:\\","Text(*.txt)|*.txt|All(*.*)|*.*||");
  Window.TextOut(0,50,80,fsave);
  Window.UpdateWindow();
  break;

  case 8002:
  var dir = "Directory:";
  dir += Window.FileDialog(2,
                          "E:\\Nano",
                          "select folder",
                          "");
  Window.TextOut(0,50,120,dir);
  Window.UpdateWindow();
  break;

  case 8003:
  Window.Close();
  break;
     };
   };