diff --git a/scenario/tva_parameter.php b/scenario/tva_parameter.php
new file mode 100644
index 000000000..d721c5116
--- /dev/null
+++ b/scenario/tva_parameter.php
@@ -0,0 +1,80 @@
+<?php
+
+/*
+ *   This file is part of NOALYSS.
+ *
+ *   PhpCompta is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   PhpCompta is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with PhpCompta; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+// Copyright (2018) Author Dany De Bontridder <dany@alchimerys.be>
+
+
+/**
+ * @file
+ * @brief Test the tva parameters file
+ */
+//@description:Scenario file for VAT parameters
+$_POST['gDossier']=$gDossierLogInput;
+$_GET['gDossier']=$gDossierLogInput;
+$_REQUEST=array_merge($_GET, $_POST);
+require_once NOALYSS_INCLUDE."/class/tva_rate_mtable.class.php";
+
+$is_ajax=$http->request("TestAjaxFile", "string", "-");
+
+$tva_rate=new V_Tva_Rate_SQL($cn);
+if ($is_ajax!="-")
+{
+    $p_id=$http->request('p_id', "number");
+    $tva_rate->set_pk_value($p_id);
+    $tva_rate->load();
+}
+$manage_table=new Tva_Rate_MTable($tva_rate);
+$manage_table->set_callback("ajax_test.php");
+$manage_table->add_json_param("TestAjaxFile", __FILE__);
+
+if ($is_ajax!="-")
+{
+    $table=$http->request('table');
+    $action=$http->request('action');
+    $p_id=$http->request('p_id', "number");
+    $ctl_id=$http->request('ctl');
+    /*
+     * we're in ajax part
+     */
+    if ($action=="input")
+    {
+
+        $manage_table->set_object_name($ctl_id);
+        header('Content-type: text/xml; charset=UTF-8');
+        echo $manage_table->ajax_input()->saveXML();
+        return;
+    }
+    elseif ($action=="save")
+    {
+        $manage_table->set_object_name($ctl_id);
+        header('Content-type: text/xml; charset=UTF-8');
+        echo $manage_table->ajax_save()->saveXML();
+        return;
+    } 
+    elseif ($action=="delete")
+    {
+        $manage_table->set_object_name($ctl_id);
+        header('Content-type: text/xml; charset=UTF-8');
+        echo $manage_table->ajax_delete()->saveXML();
+    }
+    return;
+}
+$manage_table->create_js_script();
+
+$manage_table->display_table();