var MENU = [
  [{"id":1},'Contents', null, null,
    [{"id":2},'Title Page', 'title.html', 'view'],
    [{"id":3},'Theory I', 'theo.html', 'view'],
    [{"id":4},'Theory II', 'theo2.html', 'view'],
    [{"id":5},'Practice (C)', 'prac1.html', 'view'],
    [{"id":6},'Practice(C++)', 'prac2.html', 'view'],
    [{"id":7},'Practice (VB)', 'prac3.html', 'view'],
    [{"id":8},'Practice (K)', 'prac4.html', 'view']
  ]
];