             
             if (instance == selectionIndicator) 
                 grid.selectionIndicator = selectionIndicator;
+
         }
         
         if (instance == columnHeaderBar)

            
            if (columnHeaderBar)
                columnHeaderBar.dataGrid = this;
        }
        
        if (instance == alternatingRowColorsBackground)

            columnHeaderBar.addEventListener(GridEvent.SEPARATOR_MOUSE_UP, separator_mouseUpHandler);  
        }       
        
    }
    
    /**
