AJAX Request

ajax.php

<script type="text/javascript">
    $('form').submit(function () {
        $('form button').attr("disabled", "disabled");
        $('#loading').fadeIn();
        $('#msj').html('');
        $.post('<?php echo Flight::base_url('contacto'); ?>', $('form').serializeArray(), function (d) {
            $('#loading').fadeOut();
            $('form button').removeAttr('disabled');
            $('#msj').html(d.msj);
            $('html, body').animate({scrollTop: $("#msj").offset().top}, 500);
            if (d.status === true) {
                $('form').slideUp();
            } else {
                $('#captcha').attr('src','<?php echo Flight::base_url('captcha'); ?>?' + Math.random());
            }
        }, 'json');
        return false;
    });
</script>