From 63871077af011553a8f45d7d225c2721fd23033c Mon Sep 17 00:00:00 2001
From: Ming <ming@cocos2d-x.org>
Date: Thu, 22 Jul 2010 06:31:08 +0000
Subject: [PATCH] issue #3: change tow function to virtual

---
 cocos2dx/include/CCNode.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cocos2dx/include/CCNode.h b/cocos2dx/include/CCNode.h
index b6b69695d0..1cca3bc8df 100644
--- a/cocos2dx/include/CCNode.h
+++ b/cocos2dx/include/CCNode.h
@@ -256,13 +256,13 @@ public:
 	It returns self, so you can chain several addChilds.
 	@since v0.7.1
 	*/
-	CCNode * addChild(CCNode * child);
+	virtual CCNode * addChild(CCNode * child);
 
 	/** Adds a child to the container with a z-order
 	It returns self, so you can chain several addChilds.
 	@since v0.7.1
 	*/
-	CCNode * addChild(CCNode * child, int zOrder);
+	virtual CCNode * addChild(CCNode * child, int zOrder);
 
 	/** Adds a child to the container with z order and tag
 	It returns self, so you can chain several addChilds.