code: public boolean isVertical()
      {
          if (_orientVal == null) {
              boolean val = VERTICAL_VALUE.equalsIgnoreCase(_orientation);
              _orientVal = new Boolean(val);
          }
          return _orientVal.booleanValue();
      }
docs: Returns <code>true</code> if vertical layout is set.
  @return <code>true</code> if vertical layout is set