var bookero_config = {
    id: 'D1rM0hkyiDvN',
    container: 'bookero',
    type: 'full',
    position: '',
    plugin_css: true,
    lang: 'pl'
  };

  (function() {
  var d = document, s = d.createElement('script');
  s.src = 'https://cdn.bookero.pl/plugin/v2/js/bookero-compiled.js';
  d.body.appendChild(s);
  })();