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.
      *