public bool UserExists(string Username, string Password)
        {
            User u = JsonConvert.DeserializeObject <User>(ah.GetPar(Username));

            if (Same(Username, u.Username) && Same(Password, u.Password))
            {
                LoggedUser.Username = u.Username;
                LoggedUser.Id       = u.Id;
                return(true);
            }
            else
            {
                return(false);
            }
        }
        public bool UserExists(string Username)
        {
            string input = "";

            input = Ah.GetPar(Username);
            if (input == "")
            {
                return(false);
            }
            else
            {
                string pattern = @"" + Username + "";
                Match  m       = Regex.Match(input, pattern, RegexOptions.IgnoreCase);
                if (m.Success == true)
                {
                    return(true);
                }
                else
                {
                    return(false);
                }
            }
        }