enableOnlineValidator.setValue(WorkingSetManager.getInstance().isAutoVerifierEnabled());
form.addAttribute(constants.Enabled(), enableOnlineValidator );
HorizontalPanel actions = new HorizontalPanel();
form.addAttribute("", actions);
Button btnSave = new Button(constants.SaveChanges());
btnSave.setTitle(constants.SaveAllChanges());
btnSave.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {