title: jQuery validationEngine => onSuccess don't seems to work
body: <p>First try here, I tried for last 3 nights everything possible with the jQuery plugin, to get a very simple thing : </p>
  
  <blockquote>
    <p>When I submit a form (target = iframe), works fine, and I just need when it's validated to "unhide" a div... I tried every single fichtion without success.</p>
  </blockquote>
  
  <p>Unfortunately nothing I tried works.</p>
  
  <p>I searched on official site, but no documentation for "onSuccess"... just : </p>
  
  <p>onSuccess
  If set, this callback function will be called when all validations passed.</p>
  
  <p>So maybe someone may help me :</p>
  
  <pre><code>$('#MYFORM').validationEngine('attach', {
      onValidationComplete: function(form, status){
          if (status == true) {                   
              alert('success'); &lt;&lt; EVEN THIS DOESNT WORKS, FORM SUBMITS OR DISPLAY MISSING FIELDS
          }
      }           
  });
  </code></pre>