登录跳转问题

center/controllers/login.php

@@ -16,8 +16,11 @@ class Login extends MY_Controller
     //登录页面
 	function index()
 	{
+		$ref_url = $_SERVER["HTTP_REFERER"];
+		$login_url = "http://passport.house365.com/index/login";
+		$login_url .= $login_url?('?others_returnback='.$ref_url):'';
         Header("HTTP/1.1 301 Moved Permanently");
-        Header("Location: http://newrent.house365.com/user/login");
+        Header("Location: $login_url");
         exit;
         //IM 埋点
         if($_GET['from']=='im'){