title: .change() not work after .append()
body: <p>I would like detect all changes on input and select.</p>
  
  <p>For do this I have a function :</p>
  
  <pre><code>$('input, select').on("change", function(){
  
     addSelect(); // This function add a select when another select is clicked
  
     // Some others functions ...
  });
  </code></pre>
  
  <p>When I change the value of a first select the function addSelect() works and a second select is created below the first.
  But when I clicked on this second select the function .on("change") not working. </p>
  
  <p>If I click on the first the function works...</p>
  
  <p>Can you help me ? Thank's you.</p>