docs: function initHighlightingOnLoad() {
      if (window.addEventListener) {
        window.addEventListener('DOMContentLoaded', initHighlighting, false);
        window.addEventListener('load', initHighlighting, false);
      } else if (window.attachEvent)
        window.attachEvent('onload', initHighlighting);
      else
        window.onload = initHighlighting;
    }