//添加评论
        private void AddComment()
        {
            if (!isLogin)
            {
                Response.Write("<script>alert('仅登录会员可评论...');history.back(-1);</script>");
                return;
            }
            ClassLibrary.Model.RouteComment model = new ClassLibrary.Model.RouteComment();

            model.routeID  = Convert.ToInt32(Function.GetFormString("routeID"));
            model.Nickname = Function.GetFormString("Nickname");
            model.Email    = HttpUtility.HtmlEncode(Function.GetFormString("Email"));
            model.Grade    = Convert.ToByte(Function.GetFormString("xing"));
            model.Content  = HttpUtility.HtmlEncode(Function.GetFormString("Content"));
            string pingyin = Function.GetFormString("pingyin");

            model.UserName = userName;

            if (!string.IsNullOrEmpty(Function.GetFormString("Anonymous")))
            {
                model.Anonymous = Convert.ToBoolean(Function.GetFormString("Anonymous"));
            }
            model.Checked = false;

            if (Session["ValidateCode"] == null)
            {
                Response.Write("<script>alert('验证码输入错误,请重新输入。');history.back(-1);</script>");
                return;
            }
            else if (Request.Form["yanz"] != Session["ValidateCode"].ToString())
            {
                Response.Write("<script>alert('验证码输入错误,请重新输入。');history.back(-1);</script>");
                return;
            }

            DataTable myTable = cmtBLL.GetData("routeID=" + model.routeID);

            DateTime lastTime     = DateTime.Now;
            bool     existcomment = false;

            foreach (DataRow dr in myTable.Rows)
            {
                lastTime     = DateTime.Parse(dr["CreatedTime"].ToString());
                existcomment = true;
                break;
            }

            System.TimeSpan ts = DateTime.Now - lastTime;

            if (existcomment && ts.Days == 0 && ts.Hours == 0 && ts.Minutes <= 3)
            {
                Response.Write("<script>alert('请3分钟后重新输入!');history.back(-1);</script>");
                return;
            }

            if (cmtBLL.Add(model) > 0)
            {
                Response.Write("<script>alert('评论成功!');location.href='/" + pingyin + "/" + model.routeID + ".html';</script>");
            }
            else
            {
                Response.Write("<script>alert('评论失败,数据错误,请重试。。。');location.href='/" + pingyin + "/" + model.routeID + ".html';</script>");
            }
        }