gbc_txtPassword.gridy = 2;
getContentPane().add(txtPassword, gbc_txtPassword);
txtPassword.setColumns(10);
JButton btnLogin = new JButton("Login");
btnLogin.addActionListener(new DialogLoginListener(txtUsername, txtPassword));
GridBagConstraints gbc_btnLogin = new GridBagConstraints();
gbc_btnLogin.fill = GridBagConstraints.BOTH;
gbc_btnLogin.insets = new Insets(0, 0, 5, 5);
gbc_btnLogin.gridx = 1;
gbc_btnLogin.gridy = 3;