diff --git a/extensions/CCBReader/CCBValue.cpp b/extensions/CCBReader/CCBValue.cpp
index dac5004f3a..051100383d 100644
--- a/extensions/CCBReader/CCBValue.cpp
+++ b/extensions/CCBReader/CCBValue.cpp
@@ -1,7 +1,5 @@
 #include "CCBValue.h"
 
-using namespace cocos2d;
-
 NS_CC_EXT_BEGIN
 
 // Implementation of Color3BWapper
@@ -14,10 +12,10 @@ Color3BWapper* Color3BWapper::create(const Color3B& color)
         ret->color.r = color.r;
         ret->color.g = color.g;
         ret->color.b = color.b;
-        
+
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -34,10 +32,10 @@ CCBValue* CCBValue::create(int nValue)
     if (ret)
     {
         ret->_value.intValue = nValue;
-		ret->_type = Type::INT;
+        ret->_type = Type::INT;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -47,10 +45,10 @@ CCBValue* CCBValue::create(float fValue)
     if (ret)
     {
         ret->_value.floatValue = fValue;
-		ret->_type = Type::FLOAT;
+        ret->_type = Type::FLOAT;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -60,10 +58,10 @@ CCBValue* CCBValue::create(bool vValue)
     if (ret)
     {
         ret->_value.intValue = vValue ? 1 : 0;
-		ret->_type = Type::BOOL;
+        ret->_type = Type::BOOL;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -73,10 +71,10 @@ CCBValue* CCBValue::create(unsigned char byte)
     if (ret)
     {
         ret->_value.intValue = byte;
-		ret->_type = Type::UNSIGNED_CHAR;
+        ret->_type = Type::UNSIGNED_CHAR;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -86,10 +84,10 @@ CCBValue* CCBValue::create(const char *pStringValue)
     if (ret)
     {
         ret->_strValue = pStringValue;
-		ret->_type = Type::STRING;
+        ret->_type = Type::STRING;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
@@ -103,51 +101,51 @@ CCBValue* CCBValue::create(Array *pArrValue)
         ret->_type = Type::ARRAY;
         ret->autorelease();
     }
-    
+
     return ret;
 }
 
 
 int CCBValue::getIntValue()
 {
-	CCASSERT(_type == Type::INT, "The type of CCBValue isn't integer.");
-    
+    CCASSERT(_type == Type::INT, "The type of CCBValue isn't integer.");
+
     return _value.intValue;
 }
 
 float CCBValue::getFloatValue()
 {
-	CCASSERT(_type == Type::FLOAT, "The type of CCBValue isn't float.");
-    
+    CCASSERT(_type == Type::FLOAT, "The type of CCBValue isn't float.");
+
     return _value.floatValue;
 }
 
 bool CCBValue::getBoolValue()
 {
-	CCASSERT(_type == Type::BOOL, "The type of CCBValue isn't boolean.");
-    
+    CCASSERT(_type == Type::BOOL, "The type of CCBValue isn't boolean.");
+
     return _value.intValue == 1 ? true : false;
 }
 
 unsigned char CCBValue::getByteValue()
 {
-	CCASSERT(_type == Type::UNSIGNED_CHAR, "The type of CCBValue isn't unsigned char.");
-    
+    CCASSERT(_type == Type::UNSIGNED_CHAR, "The type of CCBValue isn't unsigned char.");
+
     return (unsigned char)(_value.intValue);
 }
 
 Array* CCBValue::getArrayValue()
 {
-	CCASSERT(_type == Type::ARRAY, "The type of CCBValue isn't array.");
-    
+    CCASSERT(_type == Type::ARRAY, "The type of CCBValue isn't array.");
+
     return _arrValue;
 }
 
 
 const char* CCBValue::getStringValue()
 {
-	CCASSERT(_type == Type::STRING, "The type of CCBValue isn't string.");
-    
+    CCASSERT(_type == Type::STRING, "The type of CCBValue isn't string.");
+
     return _strValue.c_str();
 }