if(_bottomSet.contains(c) && _side instanceof JTabbedPane) {
if(_bottomSet.contains(c) && _bottom instanceof JTabbedPane) {
	private void setTopTab(Component c) {		if(c == null) {			return;		}		if(_bottomSet.contains(c) && _side instanceof JTabbedPane) {			((JTabbedPane) _bottom).setSelectedIndex(((JTabbedPane) _bottom).indexOfComponent(c));		} else if (_centerSet.contains(c) && _center instanceof JTabbedPane) {			((JTabbedPane) _center).setSelectedIndex(((JTabbedPane) _center).indexOfComponent(c));		} else if (_sideSet.contains(c) && _side instanceof JTabbedPane) {			((JTabbedPane) _side).setSelectedIndex(((JTabbedPane) _side).indexOfComponent(c));		}	}