iSelectedIndex = -1;
return;
	void mouseDown( MouseEvent e )	{		if ( e.widget.equals( cnvMarkers ) )		{			int ix = e.x / MARKER_BLOCK_WIDTH;			int iy = e.y / MARKER_BLOCK_HEIGHT + iStartRow;			iSelectedIndex = iy * MARKER_ROW_MAX_NUMBER + ix;			if ( ix >= MARKER_ROW_MAX_NUMBER					|| iSelectedIndex >= getMarkers( ).size( ) )			{				iSelectedIndex = -1;			}			this.cnvMarkers.redraw( );			setEnabledState( );		}	}