string str_commtype = Request.QueryString["commtype"];
        if (str_UserNum == "Guest")
        {
            str_UserNum = "匿名";
            DataTable dt = sys.UserPram();
            if (dt != null)
            {
                if (dt.Rows[0]["UnRegCommTF"].ToString() != "1")
                {
                    Response.Write("ERR$$$系统不允许匿名评论!");
                    Response.End();
                }
            }
            else
            {
                Response.Write("ERR$$$系统参数错误,!");
                Response.End();
            }
        }
        else
        {
            if (str_UserNum.ToLower() != "guest" || str_UserNum != "匿名")
            {
                if (Validate_Session())
                {
                    str_UserNum = BinhuSafety.Global.Current.UserName;
                    SiteID = BinhuSafety.Global.Current.SiteID;
                }
                else
                {
                    GlobalUserInfo info;
                    EnumLoginState state = _UserLogin.PersonLogin(str_UserNum, str_UserPwd, out info);
                    if (state == BinhuSafety.Model.EnumLoginState.Succeed)
                    {
                        BinhuSafety.Global.Current.Set(info);
                        str_UserNum = BinhuSafety.Global.Current.UserName;
                        SiteID = BinhuSafety.Global.Current.SiteID;
                    }
                    else
                    {
                        Response.Write("ERR$$$帐号或密码错误!");
                        Response.End();
                    }
                }
            }