private void txtAuthenticate_Click(object sender, EventArgs e)
        {
            LoginHandler         login             = new LoginHandler(txtUsername.Text, txtPassword.Text);
            frmBattlefieldPicker battleFieldPicker = new frmBattlefieldPicker();

            this.Hide();
            battleFieldPicker.ShowDialog();
        }
        private void btnRegister_Click(object sender, EventArgs e)
        {
            RegisterHandler      register          = new RegisterHandler(txtName.Text, txtSurname.Text, txtRank.Text, txtDodId.Text, txtAffiliation.Text, txtUsername.Text, txtPassword.Text, txtCPassword.Text);
            frmBattlefieldPicker battleFieldPicker = new frmBattlefieldPicker();

            this.Hide();
            battleFieldPicker.ShowDialog();
        }