diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/View/Helper/Json.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/View/Helper/Json.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,80 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_View
+ * @subpackage Helper
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @version    $Id: Json.php 23451 2010-11-28 13:10:03Z ramon $
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/** Zend_Json */
+require_once 'Zend/Json.php';
+
+/** Zend_Controller_Front */
+require_once 'Zend/Controller/Front.php';
+
+/** Zend_View_Helper_Abstract.php */
+require_once 'Zend/View/Helper/Abstract.php';
+
+/**
+ * Helper for simplifying JSON responses
+ *
+ * @package    Zend_View
+ * @subpackage Helper
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_View_Helper_Json extends Zend_View_Helper_Abstract
+{
+    /**
+     * Encode data as JSON, disable layouts, and set response header
+     *
+     * If $keepLayouts is true, does not disable layouts.
+     *
+     * @param  mixed $data
+     * @param  bool $keepLayouts
+     * NOTE:   if boolean, establish $keepLayouts to true|false
+     *         if array, admit params for Zend_Json::encode as enableJsonExprFinder=>true|false
+     *         this array can contains a 'keepLayout'=>true|false
+     *         that will not be passed to Zend_Json::encode method but will be used here
+     * @return string|void
+     */
+    public function json($data, $keepLayouts = false)
+    {
+        $options = array();
+        if (is_array($keepLayouts))
+        {
+            $options     = $keepLayouts;
+            $keepLayouts = (array_key_exists('keepLayouts', $keepLayouts))
+                            ? $keepLayouts['keepLayouts']
+                            : false;
+            unset($options['keepLayouts']);
+        }
+
+        $data = Zend_Json::encode($data, null, $options);
+        if (!$keepLayouts) {
+            require_once 'Zend/Layout.php';
+            $layout = Zend_Layout::getMvcInstance();
+            if ($layout instanceof Zend_Layout) {
+                $layout->disableLayout();
+            }
+        }
+
+        $response = Zend_Controller_Front::getInstance()->getResponse();
+        $response->setHeader('Content-Type', 'application/json', true);
+        return $data;
+    }
+}