From b70dbadc037e6769d26febdc21717542a6b1ee7d Mon Sep 17 00:00:00 2001
From: wangyidong <yidong@cnezsoft.com>
Date: Wed, 1 Jul 2015 10:27:45 +0800
Subject: [PATCH]  * add function for check ajax request.

---
 framework/helper.class.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/framework/helper.class.php b/framework/helper.class.php
index b642c07d87..5e83930692 100644
--- a/framework/helper.class.php
+++ b/framework/helper.class.php
@@ -441,6 +441,18 @@ class helper
         return $string;
     }
 
+    /**
+     * Check is ajax request.
+     * 
+     * @static
+     * @access public
+     * @return bool
+     */
+    public static function isAjaxRequest()
+    {
+        return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
+    }
+
     /**
      * Set viewType.
      *