title: Alternative to dataset for IE8 (sorting elements by data attribute)
body: <p>Can anyone help me get this script working for IE8? It works fine in Mozilla and WebKit browsers, but throws an error in IE8: 'dataset.numValue' is null or not an object.</p>
  
  <pre><code>var $wrapper = $('#containerInner'),
    $sorted = $wrapper.find('.sortMe').get().sort(function (a, b) {
      return +a.dataset.numValue - +b.dataset.numValue;
    });
  </code></pre>
  
  <p>I know IE8 supports data attributes... but can't figure out or find on Google an answer to this!  </p>