title: show event in jquery context menu not working
body: <p>I want to show and hide some option of context menu before its show. So I use <code>show</code> <code>event</code> mention on <a href="http://medialize.github.io/jQuery-contextMenu/" rel="nofollow">documentation</a>. But it is not working for me. <a href="http://jsfiddle.net/EGNSw/116/" rel="nofollow">fiddle</a></p>
  
  <pre><code>show:function(){
          alert(0)
  }
  </code></pre>