// overall widgets
VerticalPanel vpanel1 = new VerticalPanel();
HorizontalPanel buttoncontainer = new HorizontalPanel();
// tab contents
FieldLabel username = new FieldLabel(uiText.YourUsername());
FieldLabel password = new FieldLabel(uiText.YourPassword());
FlowPanel loginflow = new FlowPanel();
FlowPanel registerflow = new FlowPanel();
FieldLabel usernameRegister = new FieldLabel(uiText.ChooseUsername());
FieldLabel passwordRegister = new FieldLabel(uiText.ChoosePassword());
FieldLabel emailRegister = new FieldLabel(uiText.EnterYourEmail());
FieldLabel codeRegister = new FieldLabel(uiText.EnterCode());
TextBox usernameTextRegister = new TextBox();
PasswordTextBox passwordTextRegister = new PasswordTextBox();
TextBox emailTextRegister = new TextBox();
TextBox codeTextRegister = new TextBox();
ErrorLabel usernameRegisterError = new ErrorLabel();