Как сохранить cookie селекта после клика на кнопку?

<select class="select_class">
    <option value="1">Row 1</option>
    <option value="2">Row 2</option>
    <option value="3">Row 3</option>
</select>

//checks if the cookie has been set
if($.cookie('remember_select') != null) {
    // set the option to selected that corresponds to what the cookie is set to
    $('.select_class option[value="' + $.cookie('remember_select') + '"]').attr('selected', 'selected');
}
// when a new option is selected this is triggered
$('.select_class').change(function() {
    // new cookie is set when the option is changed
    $.cookie('remember_select', $('.select_class option:selected').val(), { expires: 90, path: '/'});
});