diff --git a/htdocs/theme/eldy/eldy.css.php b/htdocs/theme/eldy/eldy.css.php
index fcdec5e9c351ef8aeb407f057dc44b03f1b860a4..a912ce2a79b961968945591dd55194ad3e875e35 100644
--- a/htdocs/theme/eldy/eldy.css.php
+++ b/htdocs/theme/eldy/eldy.css.php
@@ -19,10 +19,20 @@
  * $Source$
  */
 
-header('Content-type: text/css');
+/**
+    \file       htdocs/theme/eldy/eldy.css.php
+    \brief      Fichier de style CSS du theme Eldy
+    \version    $Revision$
+*/
 
 require("../../conf/conf.php");
 
+// Define css type
+header('Content-type: text/css');
+// Important: Avoid page request by browser and dynamic build at
+// each Dolibarr page access.
+header('Cache-Control: max-age=3600, must-revalidate');
+
 ?>
 
 /* ============================================================================== */
diff --git a/htdocs/theme/eldy/graph-color.php b/htdocs/theme/eldy/graph-color.php
index 2ec77aef258695b33b4da1df5d05755fa3f1ff89..28b154b995a7eb7e510ad963187f055c36b45f30 100755
--- a/htdocs/theme/eldy/graph-color.php
+++ b/htdocs/theme/eldy/graph-color.php
@@ -21,7 +21,7 @@
  *
  */
 
-/*!
+/**
     \file       htdocs/theme/eldy/graph-color.php
     \brief      Fichier de d�claration des couleurs pour les graphiques
     \version    $Revision$