Loading of submit button

Hey guys,

Thanks for a great Plugin, I'm loving every part of it and it's great to discover new options every day. One question though. I'm using a theme from mysitemyway.com, and was able to style a form in the style of my site using the following code that's pasted in the HTML of a page:

<script type="text/javascript">// <![CDATA[
jQuery(document).ready(function(){
jQuery('input[type="text"]').addClass('textfield');
jQuery('textarea').addClass('textarea');
jQuery('input[type="submit"]').addClass('fancy_button');
});
// ]]>
</script>

This looks great, but uses some kind of 'loading animation': the button seems to 'popup' as it is loaded on top of the original button. You can experience this at http://www.ipadacademy.nl/contact/ Any idea how to solve this?

Thanks!