code: function(audioTag) {
          var fragment = document.createDocumentFragment(),
              doc = fragment.createElement ? fragment : document;
          doc.createElement('audio');
          var div = doc.createElement('div');
          fragment.appendChild(div);
          div.innerHTML = audioTag.outerHTML;
          return div.firstChild;
        }
docs: **Handle all the IE6+7 requirements for cloning `<audio>` nodes** Create a html5-safe document fragment by injecting an `<audio>` element into the document fragment.