problem with jquery window/iframe !!

problem with jquery window/iframe !!

hello...I  have problem with jquery window.....
I wanto include inputform into footer content and make it post using jquery or ajax but I always failed....

here is  link of my site
my site link

here is jquery to post
  1. $(document).ready(function() {

        $('#myForm').submit(function() {
                type: 'POST',
                url: $(this).attr('action'),
                data: $(this).serialize(),
                success: function(data) {
            return false;

here is jquery window to open pop up window
  1. function aku(){
                        title: "chating",
                        url: "chat3.php",width:250,height:250,
                        footerContent:"<form action='ajaxform2.php' method='post'><input type='text' name='text'></form>",