protected void btnRegister_Click(object sender, EventArgs e)
        {
            bool flag = LoginDAL.isAvailable(txtUserId1.Text);

            if (flag == true)
            {
                string message = "";
                User   user    = LoginDAL.Register(txtFirstname.Text, txtLastname.Text, txtUserId1.Text, txtPassword1.Text, txtEmail.Text, txtMobile.Text, txtCity.Text, out message);
                if (user == null)
                {
                    lblStatus.Text = message;
                }
                else
                {
                    lblWelcome.Text   = "Hello " + user.userid + " !";
                    Session["USER"]   = user.userid;
                    Session["LOGGED"] = "1";
                    //Response.Redirect("Selling.aspx");
                }
            }
        }