(function () {
  function ranString() {
    return ((Math.random() + 1).toString(36) + '000000').slice(2, 7);
  }
  if (!localStorage.getItem('sjrn_ccid')) {
    localStorage.setItem(
      'sjrn_ccid',
      Array.apply(null, {
        length: 5,
      })
        .map(Function.call, ranString)
        .join('-')
    );
  }
})();