// **************************************************
public Button newRadioButton(Composite parent, String label, String toolTip, boolean selected) {
Button button = toolkit.createButton(parent, label, SWT.RADIO);
button.setToolTipText(toolTip);
button.setSelection(selected);
button.addListener(SWT.Selection, this);
return button;
}
/**
* add pushbutton to container, set enabled, add listener for it