title: Trigger events in iframe's parent window
body: <p>Why is the following not working:</p>
  
  <pre><code>//iframe:
  window.parent.$(document).trigger('complete');
  
  //parent window:
  $(document).bind('complete', function(){
    alert('Complete');
  });
  </code></pre>
  
  <p>while the following IS working:</p>
  
  <pre><code>//iframe:
  window.parent.$('body').trigger('complete');
  
  //parent window:
  $('body').bind('complete', function(){
    alert('Complete');
  });
  </code></pre>
  
  <p>?</p>