function AddNewsletterRecipient() {
    var email = $('input#tbNewsletterEmail').val();
    $.ajax({
        url: '/ajax/AddNewsletterRecipient.aspx?email=' + email,
        type: 'GET',
        cache: false,
        success: function () {
            $('div.newsletteradd').hide('fast');
            $('div.newsletterreceipt').show('slow');
        }
    });
}