title: Ajax request, how to call an other function than "success" one's?
body: <p>I use JQuery Ajax function :</p>
  
  <pre><code>$.ajax({
      url: ...,
      success: function (){
          ...
      },
      ...
  });
  </code></pre>
  
  <p>I need to execute some code just before every call of the <code>success</code> function (but after the response has been received). 
  I suppose that this <code>success</code> function is triggered like an event, so <strong>is there a way to make an other function call in place of <code>success</code> one's?</strong></p>