title: Swipe.js prev/next not working
body: <p>I'm working on this site <a href="http://www.lubittar.com/" rel="nofollow">http://www.lubittar.com/</a> which uses swipe.js - visit <strong>Timeline</strong> in the menu. 
  I've followed the example almost exactly but the next and prev buttons are not working. If I add auto: 3000 to the script it works but the button functions are not being seen for some reason. </p>
  
  <pre><code>&lt;div id='mySwipe' class='swipe'&gt;
      &lt;div class='swipe-wrap'&gt;
      &lt;div&gt;content&lt;/div&gt;
      &lt;div&gt;content&lt;/div&gt;
      &lt;div&gt;content&lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div style='text-align:center;padding-top:20px;'&gt;
    &lt;button onclick='mySwipe.prev()'&gt;prev&lt;/button&gt; 
    &lt;button onclick='mySwipe.next()'&gt;next&lt;/button&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>at the bottom of the page </p>
  
  <pre><code>&lt;script src='swipe.js'&gt;&lt;/script&gt;
  &lt;script&gt;
      var elem = document.getElementById('mySwipe');
      window.mySwipe = Swipe(elem, {
  
      });
  &lt;/script&gt;
  </code></pre>