v>
        </div>
    </div
</body>
<script>
    $(function () {
        $('#algorithm').change(function (ev) {
            var algorithm = $('#algorithm option:selected').val();
            if (algorithm === 'DCT') {
                $('input[name=pic]').removeAttr('disabled');
                $('input[name=mark]').attr('disabled','disabled');
            } else if (algorithm === 'LSB') {
                $('input[name=pic]').attr('disabled','disabled');
                $('input[name=mark]').attr('disabled',