     
     /**
      *  @private
-     *  This method adds the mouseEventHandler as an event listener to
+     *  This method adds the systemManager_mouseUpHandler as an event listener to
      *  the stage and the systemManager so that it gets called even if mouse events
      *  are dispatched outside of the button. This is needed for example when the
      *  user presses the button, drags out and releases the button.


            case MouseEvent.MOUSE_UP:
            {
                if (event.currentTarget == this)
                    hovered = true;
            } //fallthrough:
            case SandboxMouseEvent.MOUSE_UP_SOMEWHERE:
            {
                mouseCaptured = false;
                break;
            }


     *  where appropriate and updates the <code>hovered</code> and
     *  <code>mouseCaptured</code> properties.
     *  <p>This method gets called to handle MouseEvent.ROLL_OVER, MouseEvent.ROLL_OUT,
     *  MouseEvent.MOUSE_DOWN, MouseEvent.MOUSE_UP, and MouseEvent.CLICK.</p>
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
