Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 4059)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -1843,19 +1843,15 @@
 		return $str;
 	}
 
- 	/**
+	/**
 	 * Creates recursively a JSON literal from a mulidimensional associative array.
-	 * Uses Services_JSON (http://mike.teczno.com/JSON/doc/)
+	 * Uses native function of PHP >= 5.2.0
 	 *
 	 * @param	array		$jsonArray: The array to be transformed to JSON
 	 * @return	string		JSON string
 	 */
 	public static function array2json(array $jsonArray) {
-		if (!$GLOBALS['JSON']) {
-			require_once(PATH_typo3.'contrib/json/json.php');
-			$GLOBALS['JSON'] = t3lib_div::makeInstance('Services_JSON');
-		}
-		return $GLOBALS['JSON']->encode($jsonArray);
+		return json_encode($jsonArray);
 	}
 
 	/**
@@ -5183,4 +5179,4 @@
 	}
 }
 
-?>
\ No newline at end of file
+?>
Index: typo3/alt_shortcut.php
===================================================================
--- typo3/alt_shortcut.php	(revision 4059)
+++ typo3/alt_shortcut.php	(working copy)
@@ -609,7 +609,6 @@
 		$this->content = $this->doc->insertStylesAndJS($this->content);
 
 		if($this->editPage && $this->isAjaxCall) {
-			require_once('contrib/json/json.php');
 			$data = array();
 
 				// edit page
@@ -634,8 +633,7 @@
 				$data['searchFor']       = rawurlencode($this->searchFor);
 			}
 
-			$json = new Services_JSON();
-			$content = $json->encode($data);
+			$content = json_encode($data);
 
 			header('Content-type: application/json; charset=utf-8');
 			header('X-JSON: '.$content);