var MENU = [
  [{"id":1},'Contents', null, null,
    [{"id":2},'Title Page', 'title.html', 'view'],
    [{"id":3},'Open Hashing', 'opn.html', 'view'],
    [{"id":4},'Hash Functions', 'fun.html', 'view'],
    [{"id":5},'Data Structures', 'node.html', 'view'],
    [{"id":6},'Comparison', 'com.html', 'view'],
    [{"id":7},'Bibliography', 'bib.html', 'view'],
  ]
];