ASP.NET-后台cookie与前台JQUERY解析cookie

HttpCookie cookie = new HttpCookie("pageInfo");
cookie["page_index"] = page_index.ToString();
cookie["page_count"] = page_count.ToString();
Response.AppendCookie(cookie);

   $("#ui_input_btn02").click(function () {
            var page_data = getCookie("pageInfo").toString();
            page_index = String(page_data).substr(11, 1);
            var new_page = Number(page_index) - 1;
            $.post("/Order/Page", { data: new_page }, function (data) {
                var page_data = getCookie("pageInfo").toString();
                page_index = String(page_data).substr(11, 1);
                $("#page_now").text(page_index);
                $("#test").html(data);