title: jquery, get the height of a div after an ajax query
body: <p>How can I get the heights of some divs I called with an ajax query?</p>
  
  <p>I tried:</p>
  
  <pre><code>var size = 0;
  
  $.ajax({
      type: 'GET', 
      url: 'load.html', 
      success: function(data, textStatus, jqXHR) {
          var el = $(data);
          el.find('.test').addBack().filter('.test').each(function(){
              size += parseInt($(this).height());
          });
          alert(size);
      }
  });
  </code></pre>
  
  <p>knowing that the html of load.html is</p>
  
  <pre><code>&lt;div class="test"&gt;
      qwertry&lt;br&gt;
      qwertry&lt;br&gt;
      qwertry
  &lt;/div&gt;
  
  &lt;div class="test"&gt;
      qwertry
  &lt;/div&gt;
  </code></pre>
  
  <p>but the alert is "0"</p>