     /**
      *  @inheritDoc
      *  
+     *  <p>Note that for this class, the view does not need to be sorted in order to
+     *  call this method.</p>
+     *  
      *  @langversion 3.0
      *  @playerversion Flash 9
      *  @playerversion AIR 1.1

                }
            } 
        }
		
		updateParentMap(currentNode);

        currentIndex++;
        return true;

            }
        }

        updateParentMap(currentNode);

        currentIndex--; 
        return true;
