PHP FORM reload into load div

Question

I use a Jquery function to Load Php Content into a div on the Indexpage(Kinda like a masterpage) But I have to make an email form( I use a submit button) but now i want it to reload in the div and not the whole page?

This is my Menu Script(Kinda tried all sort of things) This is all located on the INDEX PAGE.PHP

      $('.menut').click(function () {
       var phpFile = $(this).attr('id') + '.php';
       $('#box1').load(phpFile, function () {


               $('#contactForm').click(function (e) {
                   e.preventDefault();
                   var data = $(this).serialize();
                   $('#box1').load($(this).attr('action'), data);


   });
});

This is located on the Form.php page

  <form id="contactform" method="POST" action="insch.php"> 

Answer 1

I think you should use

$('#contactform').submit(function (e){
   e.preventDefault();
   $('#box1').load(....)// 
   return false;
});

This will say when form is submitted, stop the browser from doing it's default action, then return false, to stop any other actions if any.