Index: branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_List.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_List.php	(revision 20344)
+++ branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_List.php	(revision 20434)
@@ -152,8 +152,5 @@
         $this->productStatus = $this->arrProducts["productStatus"];
         unset($this->arrProducts["productStatus"]);
-
-        $objJson = new Services_JSON();
-        $this->tpl_javascript .= 'var productsClassCategories = ' . $objJson->encode($objProduct->classCategories) . ';';
-
+        $this->tpl_javascript .= 'var productsClassCategories = ' . SC_Utils_Ex::jsonEncode($objProduct->classCategories) . ';';
         //onloadスクリプトを設定
         foreach ($this->arrProducts as $arrProduct) {
Index: branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_Detail.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_Detail.php	(revision 20408)
+++ branches/version-2_5-dev/data/class/pages/products/LC_Page_Products_Detail.php	(revision 20434)
@@ -132,6 +132,5 @@
         $this->tpl_product_type = $objProduct->classCategories[$product_id]['']['']['product_type'];
 
-        $objJson = new Services_JSON();
-        $this->tpl_javascript .= 'classCategories = ' . $objJson->encode($objProduct->classCategories[$product_id]) . ';';
+        $this->tpl_javascript .= 'classCategories = ' . SC_Utils_Ex::jsonEncode($objProduct->classCategories[$product_id]) . ';';
         $this->tpl_javascript .= 'function lnOnLoad(){' . $this->js_lnOnload . '}';
         $this->tpl_onload .= 'lnOnLoad();';
@@ -316,5 +315,5 @@
         return  'fnSetClassCategories('
             . 'document.form1, '
-            . Services_JSON::encode($this->objFormParam->getValue('classcategory_id2'))
+            . SC_Utils_Ex::jsonEncode($this->objFormParam->getValue('classcategory_id2'))
             . '); ';
     }
Index: branches/version-2_5-dev/data/class/pages/upgrade/helper/LC_Upgrade_Helper_Json.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/upgrade/helper/LC_Upgrade_Helper_Json.php	(revision 19684)
+++ branches/version-2_5-dev/data/class/pages/upgrade/helper/LC_Upgrade_Helper_Json.php	(revision 20434)
@@ -83,13 +83,8 @@
      * @param string $str
      * @return StdClass
+     * @see SC_Utils_Ex::jsonDecode
      */
     function decode($str) {
-        if (function_exists('json_decode')) {
-            LC_Upgrade_Helper_Log::log(' *use json_decode()');
-            return json_decode($str);
-        }
-
-        LC_Upgrade_Helper_Log::log(' *use Services_JSON::decode()');
-        return parent::decode($str);
+        return SC_Utils_Ex::jsonDecode($str);
     }
 }
Index: branches/version-2_5-dev/data/class/pages/shopping/LC_Page_Shopping_Payment.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/shopping/LC_Page_Shopping_Payment.php	(revision 20384)
+++ branches/version-2_5-dev/data/class/pages/shopping/LC_Page_Shopping_Payment.php	(revision 20434)
@@ -143,6 +143,5 @@
 
             if (SC_Display::detectDevice() != DEVICE_TYPE_MOBILE) {
-                $objJson = new Services_JSON();
-                echo $objJson->encode($arrSelectedDeliv);
+                echo SC_Utils_Ex::jsonEncode($arrSelectedDeliv);
                 exit;
             } else {
Index: branches/version-2_5-dev/data/class/pages/admin/order/LC_Page_Admin_Order_ProductSelect.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/admin/order/LC_Page_Admin_Order_ProductSelect.php	(revision 20427)
+++ branches/version-2_5-dev/data/class/pages/admin/order/LC_Page_Admin_Order_ProductSelect.php	(revision 20434)
@@ -159,6 +159,5 @@
      */
     function getTplJavascript(&$objProduct){
-        $objJson = new Services_JSON();
-        return  'productsClassCategories = ' . $objJson->encode($objProduct->classCategories) . '; ';
+        return  'productsClassCategories = ' . SC_Utils_Ex::jsonEncode($objProduct->classCategories) . '; ';
     }
 
Index: branches/version-2_5-dev/data/class/pages/admin/LC_Page_Admin_Home.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/admin/LC_Page_Admin_Home.php	(revision 20345)
+++ branches/version-2_5-dev/data/class/pages/admin/LC_Page_Admin_Home.php	(revision 20434)
@@ -317,6 +317,5 @@
         $jsonStr = @file_get_contents($url, false, stream_context_create($context));
 
-        $objJson = new Services_JSON;
-        $arrTmpData = is_string($jsonStr) ? $objJson->decode($jsonStr) : null;
+        $arrTmpData = is_string($jsonStr) ? SC_Utils_Ex::jsonDecode($jsonStr) : null;
 
         if (empty($arrTmpData)) {
Index: branches/version-2_5-dev/data/class/util/SC_Utils.php
===================================================================
--- branches/version-2_5-dev/data/class/util/SC_Utils.php	(revision 20428)
+++ branches/version-2_5-dev/data/class/util/SC_Utils.php	(revision 20434)
@@ -2311,4 +2311,49 @@
     }
 
+    /**
+     * 値を JSON 形式にして返す.
+     *
+     * この関数は, json_encode() 又は Services_JSON::encode() のラッパーです.
+     * json_encode() 関数が使用可能な場合は json_encode() 関数を使用する.
+     * 使用できない場合は, Services_JSON::encode() 関数を使用する.
+     *
+     * @param mixed $value JSON 形式にエンコードする値
+     * @return string JSON 形式にした文字列
+     * @see json_encode()
+     * @see Services_JSON::encode()
+     */
+    function jsonEncode($value) {
+        if (function_exists('json_encode')) {
+            return json_encode($value);
+        } else {
+            require_once(dirname(__FILE__) . '/../../module/Services/JSON.php');
+            GC_Utils::gfPrintLog(' *use Services_JSON::encode(). faster than using the json_encode!');
+            $objJson = new Services_JSON();
+            return $objJson->encode($value);
+        }
+    }
+
+    /**
+     * JSON 文字列をデコードする.
+     *
+     * この関数は, json_decode() 又は Services_JSON::decode() のラッパーです.
+     * json_decode() 関数が使用可能な場合は json_decode() 関数を使用する.
+     * 使用できない場合は, Services_JSON::decode() 関数を使用する.
+     *
+     * @param string $json JSON 形式にエンコードされた文字列
+     * @return mixed デコードされた PHP の型
+     * @see json_decode()
+     * @see Services_JSON::decode()
+     */
+    function jsonDecode($json) {
+        if (function_exists('json_decode')) {
+            return json_decode($json);
+        } else {
+            require_once(dirname(__FILE__) . '/../../module/Services/JSON.php');
+            GC_Utils::gfPrintLog(' *use Services_JSON::decode(). faster than using the json_decode!');
+            $objJson = new Services_JSON();
+            return $objJson->decode($json);
+        }
+    }
 }
 ?>
Index: branches/version-2_5-dev/data/require_classes.php
===================================================================
--- branches/version-2_5-dev/data/require_classes.php	(revision 20306)
+++ branches/version-2_5-dev/data/require_classes.php	(revision 20434)
@@ -22,5 +22,4 @@
  */
 
-require_once(DATA_REALDIR . "module/Services/JSON.php");
 require_once(CLASS_EX_REALDIR . "util_extends/GC_Utils_Ex.php");
 require_once(CLASS_EX_REALDIR . "util_extends/SC_Utils_Ex.php");