$('#formulaireNewsletter').validate({
    submitHandler: function(form) {
        // do other stuff for a valid form
        if ($(form).valid())
        {
            $(form).ajaxSubmit(function(responseText, statusText) {
                if (responseText!="")
                    alert('probleme'+responseText);
                else {
                    $(form).clearForm();

                    jQuery.facebox(function() {
                        jQuery.get('resultat.php', function(data) {
                            jQuery.facebox( data )
                        })
                    })
                }
            })
        }
    },
    rules: {

        Mon_email_pour_la_newsletter: {
            required:true,
            email: true
        }
    }
});