function wppb_add_activation_message($content)
{
    return wppb_activate_signup($_GET['activation_key']) . $content;
}
function wppb_front_end_register_handler($atts)
{
    if (isset($_GET['key'])) {
        $res = wppb_activate_signup($_GET['key']);
    } else {
        $res = wppb_front_end_register($atts);
    }
    return $res;
}
function wppb_front_end_register_handler($atts)
{
    return isset($_GET['activation_key']) ? wppb_activate_signup($_GET['activation_key']) : wppb_front_end_register($atts);
}