jquery load()編碼問題

  $.ajax({
                    type: "post",
                    url: "OrderInfo/OrderInfo.ashx?id=" + Math.random(),
                    data: {  orderaddr: escape(orderaddress.val()), ordertype: ordertype.val(), order: "order" },
                    success: function(result) {
                        if (result == "OK") {
                            alert(ordername.val() + " 提交成功，請等待客服人員的回複");
                            return;
                        }
                        else {
                            alert("該使用者已經提交過訂單");
                            return;
                        }
                    }
                });

 

ashx頁面：

var orderaddr =HttpUtility.UrlDecode(context.Request.Form["orderaddr"],System.Text.Encoding.GetEncoding("utf-8"));