diff --git a/bureau/admin/foot.php b/bureau/admin/foot.php
index d83fe288..f4d5642a 100644
--- a/bureau/admin/foot.php
+++ b/bureau/admin/foot.php
@@ -10,3 +10,6 @@ if ( $debug_alternc->status ) {
 ?>
 </body>
 </html>
+<?php 
+exit(); // case of include('foot.php');
+?>
diff --git a/bureau/admin/sql_del.php b/bureau/admin/sql_del.php
index b6d7fffd..76ffa8ea 100644
--- a/bureau/admin/sql_del.php
+++ b/bureau/admin/sql_del.php
@@ -30,10 +30,16 @@
 require_once("../class/config.php");
 include_once ("head.php");
 
+$fields = array (
+        "confirm"                => array ("post", "string", ""),
+);
+getFields($fields);
+
 if(!isset($error)){
 	$error="";
 }
-if (isset($confirm) && $confirm=="y" ) {
+
+if ($confirm=="y" ) {
   reset($_POST);
   while (list($key,$val)=each($_POST)) {
     if (substr($key,0,4)=="del_") {
diff --git a/bureau/admin/sql_doadd.php b/bureau/admin/sql_doadd.php
index c7b69e99..06affa2f 100644
--- a/bureau/admin/sql_doadd.php
+++ b/bureau/admin/sql_doadd.php
@@ -29,6 +29,10 @@
 */
 require_once("../class/config.php");
 
+$fields = array (
+        "dbn"                 => array ("post", "string", ""),
+);
+getFields($fields);
 
 if (!$quota->cancreate("mysql")) {
 	$error=_("err_mysql_1");
diff --git a/bureau/class/config.php b/bureau/class/config.php
index 6143aaba..9a8ba887 100644
--- a/bureau/class/config.php
+++ b/bureau/class/config.php
@@ -162,11 +162,10 @@ if (!defined('NOCHECK')) {
 } 
 
 for($i=0;$i<count($classes);$i++) {
-  if (! in_array($classes[$i],Array('mem', 'err', 'authip'))) {
-    $name2=$classes[$i];
-    $name1="m_".$name2;
-    $$name2= new $name1();
-  }
+  $name2=$classes[$i];
+  if (isset($$name2)) continue; // for already instancied class like mem, err or authip
+  $name1="m_".$name2;
+  $$name2= new $name1();
 }