var MENU = [
  [{"id":1},'Contents', null, null,
    [{"id":2},'Title Page', 'title.html', 'view'],
    [{"id":3},'Bibliography', 'bib.html', 'view'],
    [{"id":4},'Introduction', null, null,
      [{"id":5},'Arrays', 'arr.html', 'view'],
      [{"id":6},'Linked Lists', 'lnk.html', 'view'],
      [{"id":7},'Timing Estimates', 'tim.html', 'view'],
      [{"id":8},'Summary', 'sum.html', 'view'],
    ],
    [{"id":9},'Sorting', null, null,
      [{"id":10},'Insertion Sort', 'ins.html', 'view'],
      [{"id":11},'Shell Sort', 'shl.html', 'view'],
      [{"id":12},'Quicksort', 'qui.html', 'view'],
      [{"id":13},'Comparison', 'cm1.html', 'view'],
      [{"id":14},'External Sorts', 'ext.html', 'view'],
    ],
    [{"id":15},'Dictionaries', null, null,
      [{"id":16},'Hash Tables', 'has.html', 'view'],
      [{"id":17},'Binary Search Trees', 'bin.html', 'view'],
      [{"id":18},'Red-Black Trees', 'rbt.html', 'view'],
      [{"id":19},'Skip Lists', 'skl.html', 'view'],
      [{"id":20},'Comparison', 'cm2.html', 'view'],
    ],
  ],
];