diff --git a/html/index.php b/html/index.php
index 8342d2b..863bcf7 100644
--- a/html/index.php
+++ b/html/index.php
@@ -245,9 +245,18 @@ if (isset($_POST['xd_check'])){
 <body>
   <header>
     <h1><?php echo $siteTitle; ?></h1>
-      <nav id="languages"><a href="<?php echo $currentArena; ?>-fr">fr</a>&nbsp;<a href="<?php echo $currentArena; ?>-en">en</a></nav>
-      <nav id="menus"><a href="/"<?php if(($currentArena == "") && (!isset($_GET['doc']))) echo ' class="selected"'; ?>><?php echo $lang['HOME']; ?></a>
       <?php
+	if(isset($_GET['doc'])){
+	    echo '<nav id="languages"><a href="/'.$currentArena.'/doc-fr">fr</a>&nbsp;<a href="/'.$currentArena.'/doc-en">en</a></nav>';
+	 }else{
+	    echo '<nav id="languages"><a href="/'. $currentArena.'-fr">fr</a>&nbsp;<a href="/'.$currentArena.'-en">en</a></nav>';
+	 }
+      
+      echo '<nav id="menus"><a href="/"';
+      if(($currentArena == "") && (!isset($_GET['doc']))){ 
+	echo ' class="selected"';
+      }
+      echo '>'.$lang['HOME'].'</a>';
 
         foreach($arenas as $arena){
             if( $arena['id'] == $currentArena){
diff --git a/src/functions.php b/src/functions.php
index 2745efb..8f4c669 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -106,7 +106,15 @@ function error($code,$message){
     switch($code){
         case 404:
             header("HTTP/1.0 404 Not Found");
-            echo '<!DOCTYPE html><html lang="fr"><head><meta charset="UTF-8" /><title>Page Not found</title></head><body><p>'.$message.'</p></body></html>';
+            echo '<!DOCTYPE html><html lang="fr"><head><meta charset="UTF-8" /><title>Page Not found</title></head><body><p>'.$message.'</p>
+            <pre>
+ _  _    ___  _  _   
+| || |  / _ \| || |  
+| || |_| | | | || |_ 
+|__   _| | | |__   _|
+   | | | |_| |  | |  
+   |_|  \___/   |_|  
+</pre><p><a href="/">Go to home page</a></p></body></html>';
             die;
          case 400:
 	    header ("HTTP/1.0 400 Bad Request");
