How to use MicrosoftMvcValidation with jQuery.Ajax in ASP.net MVC2 ?

Question

Hi,

using asp.net mvc2, Data Annotations, MicrosoftAjax.js,MicrosoftMvcValidation.js, jquery for ajax

I have contact form and i am using Data Annotations for the ContactFormModel.
I add this line <% Html.EnableClientValidation(); %> to top of the form.

When i click the submit button client validation works perfectly. Now i have changed my mind and want to post the form with jQuery.Ajax.

This time i want to accomplish this.

1. Click submit button.
2. MicrosoftMVCValidation does the client validation and renders the errors on the clientside.
3. If Model is valid i meant if the validation passed i want my jQuery ajax to get involved.

But when i clicked the submit button both ajax post and mvc client validation works. How can i get the things in right order.

1.Mvc Client validation
2. Then jQuery.Ajax Post.