var message="Forget about it!\n\nCopyright © Dark Horse 2001";

function right(e) {
        if (document.all) {
                if (event.button == 2) {
                        alert(message);
                        return false;
                }

        }
        if (document.layers) {
                if (e.which == 3) {
                        alert(message);
                        return false;
                }

        }
}

if (document.layers) {
        document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=right;