title: Open a fancybox while another instance of fancybox is open
body: <p>When the user clicks on a button i show a fancybox that indicates that user should wait till the action is completed:</p>
  
  <pre><code>jQuery(document).ready(function () {
               $.fancybox('Please Wait...',{'modal':true});
          });
  </code></pre>
  
  <p>now i check the requested action via $.post function and return the result message (either action was successful or the error why the action failed) and now i want to close the first fancybox and show the new fancybox with the response i got from ajax:</p>
  
  <pre><code>$.post('someurl.aspx',{'somethingtopost':'value'},
  function(data){
  jQuery(document).ready(function () {
  $.fancybox(data);
           });
       }
  );
  </code></pre>
  
  <p>The problem is the second fancybox doesn't show. there are many examples on showing a second fancybox when closing the first one (adding to onClosed attribute) but as in this one I don't want to show the second fanybox after closing the first one, I want to show it when the action is completed.</p>