<script type='text/javascript' src='http://code.jquery.com/jquery-1.8.3.js'></script>
<link rel="stylesheet" type="text/css" href="http://fancyapps.com/fancybox/source/jquery.fancybox.css">
<script type='text/javascript' src="http://fancyapps.com/fancybox/source/jquery.fancybox.js"></script>
<div id="inline">
<h3>Системное сообщение</h3>
<form name="delete" action="#" method="post">
<p>Текст</p>
<input type="hidden" id="abc" name="abcid">
<input type="submit" name="del" id="send" value="Да">
</div>
</form>
</div>
<script type="text/javascript">
$(document).ready(function() {
$(".modalbox").fancybox({
'afterLoad': function() {
id = $(this.element).attr('rel');
}
});
});
</script>
<a class="modalbox" href="#inline" rel="9">Popup</a>