[jQuery] How to validate form fields using jquery

[manish]

Hi Friends,

 I am using CakePHP framework. With that I am using jquery for AJAX
calls to my forms. It works perfect for me. Now I want to use the
jquery for my form fields validations on client side.

I saw a very good plugin at 
http://bassistance.de/jquery-plugins/jquery-plugin-validation/
. But I don't know how to use this with AJAX.  I already tried

<script>
  $(document).ready(function(){
    $("#myForm").validate();
  });
  </script>

This also works. But When I implement this with my existing project
using AJAX. It does not work.

For AJAX my jquery function is called at onSubmit event of myForm as

$.ajax({url: "../EmployeeDetails/employee_details_edit/", data: $
(this.elements).serialize(), success: function(response){$
("#sub1content").html(response);}, type: "Post", dataType: "html"});$
().ajaxSend(function(r,s){  $("#contentLoading").show() });$
().ajaxStop(function(r,s){  $("#contentLoading").fadeOut("fast") });
return false;

But I don't know how to fit my Validate call into this form submit
call.

Any help would be greatly appreciated.