*
* @param propertyName Name of property that has changed.
*/
private void propertiesHaveChanged(String propertyName)
{
SessionProperties props = _session.getProperties();
if (propertyName == null
|| propertyName.equals(SessionProperties.IPropertyNames.MAIN_TAB_PLACEMENT))
{
_tabPnl.setTabPlacement(props.getMainTabPlacement());
}
}