diff --git a/resources/header.php b/resources/header.php
index 592328444d..6f792dfc5c 100644
--- a/resources/header.php
+++ b/resources/header.php
@@ -130,4 +130,8 @@ require_once "resources/require.php";
 //start the output buffer
 	ob_start();
 
+//for translate tool (if available)
+	if (file_exists($_SERVER["DOCUMENT_ROOT"].PROJECT_PATH."/app/translate")) {
+		require_once("app/translate/translate_header.php");
+	}
 ?>
\ No newline at end of file
diff --git a/resources/require.php b/resources/require.php
index be94978bdc..e4c7f5bb39 100644
--- a/resources/require.php
+++ b/resources/require.php
@@ -79,4 +79,9 @@
 	require "resources/pdo.php";
 	require_once "resources/functions.php";
 	require_once "resources/switch.php";
+
+//change language on the fly - for translate tool (if available)
+	if ($_REQUEST['view_lang_code'] != '') {
+		$_SESSION['domain']['language']['code'] = $_REQUEST['view_lang_code'];
+	}
 ?>
\ No newline at end of file