diff --git a/html/index.php b/html/index.php
index ae4fcc6..be64892 100644
--- a/html/index.php
+++ b/html/index.php
@@ -16,7 +16,7 @@ require_once("../src/functions.php");
 
 
 
-$arenas=arenas_get_list();
+$arenas=get_arenas_list();
 
 //form submitting
 if (isset($_POST['xd_check']))
@@ -34,8 +34,6 @@ if (isset($_POST['xd_check']))
 	}
 
 }
-
-
 ?>
 <!DOCTYPE html>
 <html lang="fr">
diff --git a/src/functions.php b/src/functions.php
index bbde409..c4198bb 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -1,5 +1,5 @@
 <?php
-function  arenas_get_list(){
+function  get_arenas_list(){
     include (__DIR__."/arenas_lists.php");
     if(isset($_GET['arena'])){
         foreach ($arenas as $arena){
@@ -10,4 +10,37 @@ function  arenas_get_list(){
         }
     }
     return $arenas;
+}
+function get_language_array(){
+  /*
+  * Choisir la langue de l'utilisateur
+  * en priorisant parametre GET, cookie, info du navigateur
+  * Retourner l'array contenant les bonnes traductions
+  */
+
+  $langsAvailable=array('fr','en');
+  $language="";
+  if( $_GET['lang'] ){
+   
+    $lang = $_GET['lang'];
+    setcookie( 'lang', $language, time() + 60*60*24*30 );
+  
+  }elseif( isset($_COOKIE['lang']) ){
+  
+    $language=$_COOKIE['lang'];
+  
+  }else{ 
+  
+    if(in_array(substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2),$langsAvailable)){
+      $language=substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
+    }
+    
+  }
+  
+  if(!in_array($language,$langsAvailable)){
+    $language="en";
+  }
+  
+  include (__DIR__."/../lang/".$language.".php");
+  return $lang;
 }
\ No newline at end of file
