刷新頁面後保存selectItem

        <script type="text/javascript">
            jQuery(document).ready(function() {
                var xx = jQuery('#xx');
                if (localStorage.getItem('xx')) {
                    jQuery("#xx option").eq(localStorage.getItem('xx')).prop('selected', true);
                }
                fundId.on('change', function() {
                    localStorage.setItem('xx', jQuery('option:selected', this).index());
                });
            })
        </script>