title: How to change Fancybox preloader image?
body: <p>I want replace default Fancybox1.3.4 image preloader (fancy_loading.png) with another preloader.</p>
  
  <p>The Fancybox preloader coded not only in css, but also in javascript itself.
  Seems, there are two places in javascript, at least:</p>
  
  <pre><code>        _animate_loading = function() {
          if (!loading.is(':visible')){
              clearInterval(loadingTimer);
              return;
          }
  
          $('div', loading).css('top', (loadingFrame * -40) + 'px');
  
          loadingFrame = (loadingFrame + 1) % 12;
      };
  </code></pre>
  
  <p>and</p>
  
  <pre><code>    $.fancybox.showActivity = function() {
      clearInterval(loadingTimer);
  
      loading.show();
      loadingTimer = setInterval(_animate_loading, 66);
  };
  
  $.fancybox.hideActivity = function() {
      loading.hide();
  };
  </code></pre>
  
  <p>So customizing the preloader will require modifying javascript too. 
  How can I change fancybox-1.3.4 javascript to set custom preloader image?</p>