diff --git a/bureau/class/m_mem.php b/bureau/class/m_mem.php
index c1872a84..3e06853c 100644
--- a/bureau/class/m_mem.php
+++ b/bureau/class/m_mem.php
@@ -237,7 +237,7 @@ class m_mem {
    * @return boolean TRUE si la session a bien été détruite, FALSE sinon.
    */
   function del_session() {
-    global $db,$session,$user,$err,$cuid;
+    global $db,$session,$user,$err,$cuid,$classes;
     $err->log("mem","del_session");
     $session=addslashes($session);
     setcookie("session","",0,"/");
@@ -263,6 +263,13 @@ class m_mem {
     $cuid=$db->f("uid");
     $db->query("delete from sessions where sid='$session';");
     $err->error=0;
+    
+    # Invoker le logout dans toutes les autres classes
+    foreach($classes as $c) {
+      if (method_exists($GLOBALS[$c],"alternc_del_session")) {
+	    $GLOBALS[$c]->alternc_del_session($dom);
+      }
+    }
     return true;
   }
 
diff --git a/bureau/class/m_mysql.php b/bureau/class/m_mysql.php
index 433663ab..f65ae908 100644
--- a/bureau/class/m_mysql.php
+++ b/bureau/class/m_mysql.php
@@ -390,6 +390,14 @@ class m_mysql {
     return true;
   }
 
+  /* ----------------------------------------------------------------- */
+  /** Hook function called when a user is logged out.
+   * We just remove the cookie created in admin/sql_admin.php
+   */
+  function alternc_del_session() {
+      setcookie("REMOTE_USER","");
+      setcookie("REMOTE_PASSWORD","");
+  }
 
   /* ----------------------------------------------------------------- */
   /**