if (children == null) return;
	private void initializeChildren(ChangeElement element) {		ChangeElement[] children= element.getChildren();		for (int i= 0; i < children.length; i++) {			ChangeElement child= children[i];			int state= child.getActive();			boolean checked= state == ChangeElement.INACTIVE ? false : true;			if (checked)				setChecked(child, checked);			boolean grayed= state == ChangeElement.PARTLY_ACTIVE ? true : false;			if (grayed)				setGrayed(child, grayed);		}	}