diff --git a/src/Pluf.php b/src/Pluf.php
index 8c66cb0..de55bba 100644
--- a/src/Pluf.php
+++ b/src/Pluf.php
@@ -31,14 +31,14 @@ class Pluf
     /**
      * Start the Plume Framework.
      *
-     * Load the configuration files. If not configuration file is given
-     * load the dirname(__FILE__).'/conf/pluf.config.php' config file.
+     * Load the configuration files. 
      *
      * @param string Configuration file to use
      */
     static function start($config)
     {
         $GLOBALS['_PX_starttime'] = microtime(true);
+        $GLOBALS['_PX_uniqid'] = uniqid($GLOBALS['_PX_starttime'], true);
         Pluf::loadConfig($config);
         date_default_timezone_set(Pluf::f('time_zone', 'Europe/Berlin'));
         mb_internal_encoding(Pluf::f('encoding', 'UTF-8'));
diff --git a/src/Pluf/HTTP/Request.php b/src/Pluf/HTTP/Request.php
index ae903e9..2570e67 100644
--- a/src/Pluf/HTTP/Request.php
+++ b/src/Pluf/HTTP/Request.php
@@ -40,6 +40,7 @@ class Pluf_HTTP_Request
     public $remote_addr = '';
     public $http_host = '';
     public $SERVER = array();
+    public $uid = '';
 
     function __construct($query)
     {
@@ -56,5 +57,6 @@ class Pluf_HTTP_Request
         $this->remote_addr = $_SERVER['REMOTE_ADDR'];
         $this->http_host = (isset($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : '';
         $this->SERVER =& $_SERVER;
+        $this->uid = $GLOBALS['_PX_uniqid']; 
     }
 }