validatedCheckBox.setValue(user.isValidated());
administratorCheckBox.setValue(user.isAdministrator());
birthdayPicker.setValue(birthday);
Button applyButton = new Button("Apply");
applyButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
user.setUsername(usernameTextBox.getText());
user.setPasswordHint(passwordHintTextBox.getText());
user.setFirstname(firstnameTextBox.getText());
user.setLastname(lastnameTextBox.getText());