/**
   * Shows the given error message.
   *
   * @param text the text of the error
   */
  private void showErrorMessage(String text) {
    errorPane.setText(text);

    if (errorPane.getParent() == null) add(errorPane, BorderLayout.NORTH);

    SwingUtilities.getWindowAncestor(CreateSip2SipAccountForm.this).pack();
  }
  /** Clears all the data previously entered in the form. */
  public void clear() {
    usernameField.setText("");
    displayNameField.setText("");
    passField.setText("");
    retypePassField.setText("");
    emailField.setText("");
    errorPane.setText("");

    remove(errorPane);
  }