         }
         return true;
     }
-	
-	/**
-	 * @private
-	 * Update the parent map.
-	 */ 
-	private function updateParentMap(currentNode:Object):void
-	{
-		if (currentNode != null)
-		{
-			var uid:String = UIDUtil.getUID(currentNode);
-			if (!collection.parentMap.hasOwnProperty(uid))
-				collection.parentMap[uid] = parentNodes[parentNodes.length - 1];
-		}
-	}
+    
+    /**
+     * @private
+     * Update the parent map.
+     */ 
+    private function updateParentMap(currentNode:Object):void
+    {
+        if (currentNode != null)
+        {
+            var uid:String = UIDUtil.getUID(currentNode);
+            if (!collection.parentMap.hasOwnProperty(uid))
+                collection.parentMap[uid] = parentNodes[parentNodes.length - 1];
+        }
+    }
 
     /**
      *  @private

    /**
     *  @inheritDoc
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1

    /**
     *  @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
