function enviarNewsletter()
{
    $('#msg_newsletter').slideDown();

    $.post(
        "index.php?class=newsletter&method=inserir"
        ,
        {
            nome: $('#newsletter_nome').val()
            , email: $('#newsletter_email').val()
        }
        , function(response)
        {
            $('#msg_newsletter').html( response );
        }
    );
}

function esconderMensagemNewsletter()
{
    $('#msg_newsletter').slideUp();
}