orientation = Orientation.VERTICAL_LITERAL;
orientation = null;
	public void dispose( )	{		super.dispose( );		// No need to dispose other widgets		chartModel = null;		if ( previewPainter != null )		{			previewPainter.dispose( );		}		previewPainter = null;		sSubType = null;		sType = null;		sDimension = null;		vSubTypeNames = null;		orientation = Orientation.VERTICAL_LITERAL;	}