changeDefault.getParent( ).layout( );
			public void widgetSelected( SelectionEvent e )			{				SelectionChoice choice = (SelectionChoice) ( (IStructuredSelection) valueTable.getSelection( ) ).getFirstElement( );				if ( isDefaultChoice( choice ) )				{					defaultValue = null;				}				else				{					defaultValue = choice.getValue( );				}				refreshValueTable( );				updateMessageLine( );				updateButtons( );			}