title: ColorBox - popup form close on validation fail
body: <p>I am combining colorbox with JQuery validation plugin. However the div popup form close the form when validation failed or empty email which it shouldn't be. I have a simple - email, subscribe.</p>
  
  <pre><code> &lt;a id="hidden_link" style="display:none" href="#mc_embed_signup"&gt;empty&lt;/a&gt;
  &lt;div style="display: none;"&gt;
  &lt;div id="mc_embed_signup"&gt;
      &lt;form action="http://COM.us7.domain.com/subscribe/post?u=12345&amp;amp;id=12345" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate&gt;
          &lt;label for="mce-EMAIL"&gt;Subscribe to Us&lt;/label&gt;
          &lt;input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="email address" required&gt;
          &lt;input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button"&gt;
      &lt;/form&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p></p>
  
  <pre><code>$("#hidden_link").colorbox({
      width: "30%",
      height: "200px",
      closeButton: false,
      scrolling: false,
      overlayClose: false,
      transition: "none",
      open: true,
      inline: true,
      href: "#mc_embed_signup",
      onComplete: function () {
          $('selector').validate({})
      }
  });
  
  
  $("#mc-embedded-subscribe-form").validate({
      rules: {
          'mce-EMAIL': {
              required: true,
              email: true
          }
      }
  });
  </code></pre>