title: Reset _.after counter
body: <p>I looked on the internet, but I was not able to find a way of resetting the _.after counter after the code inside gets executed. In this example, my intended functionality would mean that only every 5th click on the button would show the alert box:</p>
  
  <pre><code>var cb;
  
  cb = _.after(4, function() {
      alert(':)');
  });
  
  $('button').on('click', cb);
  </code></pre>
  
  <p><a href="http://jsfiddle.net/danharper/JkcuD/" rel="nofollow">http://jsfiddle.net/danharper/JkcuD/</a></p>