Keep modal window open on Submit

I’ve used Easy Fancybox and added the FSCF shortcode as follows.

<a class="btn fancybox" href="#contact_form_pop">
<span class="label">Upload PDF</span></a>
<div class="fancybox-hidden" style="display: none;">
<div id="contact_form_pop">[si-contact-form form='2']</div>
</div>

It all works perfectly except for one thing.

After pressing the submit button it sends the form, but closes the popup.

Is it possible after submitting that it doesn’t close the popup and people close the modal window manually? (Otherwise they don’t see the success\error messages).

Or an alternative, is there a way of showing the success\failure message on the page somewhere, after the pop up window closes?

Many thanks for any help.