[xelawho]

you're right - dumb idea. How about:

<script>
$(document).ready(function () {
    var warn=true;
    $("form").submit(function () {
        warn=false;
    });
    window.onbeforeunload = function () {
        if (warn) {
            return "sure about that?";
        }
    }
});

</script>