diff --git a/plugins/fipfcard_plugin/fipfcard_plugin.php b/plugins/fipfcard_plugin/fipfcard_plugin.php
index 7c66fac..f048e73 100644
--- a/plugins/fipfcard_plugin/fipfcard_plugin.php
+++ b/plugins/fipfcard_plugin/fipfcard_plugin.php
@@ -55,63 +55,37 @@ plugin shortcode
 */
 function fipfcard_main_shortcode() {
 
-$fipfcard_tools = new PLGNTOOLS();
-$test_path_plgntools = $fipfcard_tools->get_path();
-$test_url_plgntools  = $fipfcard_tools->get_url();
-error_log("-------------");
-error_log($test_path_plgntools);
-error_log($test_url_plgntools);
+	$fipfcard_tools = new PLGNTOOLS();
 
-//	fipfcard_add_files_to_front( array(
-//		"example_style.css",
-//		"example_init.js",
-//		"example_script2.js",
-//		"example_script3.js",
-//	));
-
-$fipfcard_tools->add_files_to_front( array(
-	"example_style.css",
-	"example_init.js",
-	"example_script2.js",
-	"example_script3.js",
-));
+	$fipfcard_tools->add_files_to_front( array(
+		"example_style.css",
+		"example_init.js",
+		"example_script2.js",
+		"example_script3.js",
+	));
 
 	$myvar_1 = "I am one";
 	$myvar_2 = "I am two";
-//	fipfcard_add_var_to_front( compact(
-//		"myvar_1",
-//		"myvar_2",
-//	));
 
-$fipfcard_tools->add_var_to_front( compact(
-	"myvar_1",
-	"myvar_2",
-));
+	$fipfcard_tools->add_var_to_front( compact(
+		"myvar_1",
+		"myvar_2",
+	));
 
 
 	$names = ["hugo", "camille"];
 	$ages = ["13", "34", "56"];
-//	$html_front = fipfcard_create_html(
-//		array(
-//			"example_index.html",
-//			"example_index2.html",
-//		),
-//		compact(
-//			"names",
-//			"ages",
-//		)
-//	);
 
-$html_front = $fipfcard_tools->create_html(
-	array(
-		"example_index.html",
-		"example_index2.html",
-	),
-	compact(
-		"names",
-		"ages",
-	)
-);
+	$html_front = $fipfcard_tools->create_html(
+		array(
+			"example_index.html",
+			"example_index2.html",
+		),
+		compact(
+			"names",
+			"ages",
+		)
+	);
 
 	return $html_front;
 }
diff --git a/plugins/fipfcard_plugin/php/menu/example_menu.php b/plugins/fipfcard_plugin/php/menu/example_menu.php
index 52af7b6..37ba2dd 100644
--- a/plugins/fipfcard_plugin/php/menu/example_menu.php
+++ b/plugins/fipfcard_plugin/php/menu/example_menu.php
@@ -1,15 +1,13 @@
 <?php
 
 function fipfcard_plugin_content() {
-	global $fipfcard_first_script;
-	error_log("in menu : first_script:");
-	error_log($fipfcard_first_script);
+	$fipfcard_tools = new PLGNTOOLS();
 
-	fipfcard_add_files_to_front( array(
+	$fipfcard_tools->add_files_to_front( array(
 		"menu/example_menu.js",
 	));
 
-	echo fipfcard_create_html("menu/example_menu.html");
+	echo $fipfcard_tools->create_html("menu/example_menu.html");
 }
 
 ?>
diff --git a/plugins/fipfcard_plugin/php/utils/plugin_tools.php b/plugins/fipfcard_plugin/php/utils/plugin_tools.php
index 82e65c7..aef932f 100644
--- a/plugins/fipfcard_plugin/php/utils/plugin_tools.php
+++ b/plugins/fipfcard_plugin/php/utils/plugin_tools.php
@@ -12,14 +12,21 @@ class PLGNTOOLS
 	// static properties to hold the plugin dir path and url
 	public static $root_path;
 	public static $root_url;
+	private static $_ajax_already_there;
 
 	private $_first_script;
 
+	public function __construct() {
+		if (isset( self::$_ajax_already_there ))
+			return ;
+		self::$_ajax_already_there = false;
+	}
+
 	public static function set_root_dir($path, $url) {
-		if (isset(self::$root_path))
-			return;
-		if (isset(self::$root_url))
-			return;
+		if (isset( self::$root_path ))
+			return ;
+		if (isset( self::$root_url ))
+			return ;
 		self::$root_path = $path;
 		self::$root_url = $url;
 	}
@@ -31,43 +38,64 @@ class PLGNTOOLS
 		return(self::$root_url);
 	}
 
+	/**
+	 * js function that create an ajax post action
+	 * it can be "overloaded" with a callback_response and _error
+	 */
+	public function get_ajax_script() {
+		ob_start();
+			?>
+			<script type="text/javascript">
+				function ajax_post(ajax_data, action) {
+					const _ajax_nonce = "<?php echo wp_create_nonce( 'wp-pageviews-nonce' ); ?>";
+					const _ajax_url = "<?php echo admin_url( 'admin-ajax.php' ); ?>";
+					const data = new FormData();
+					data.append('action', action);
+					data.append('_ajax_nonce', _ajax_nonce);
+					data.append('data', ajax_data);
+
+					fetch(_ajax_url, {
+						method: 'POST',
+						credentials: 'same-origin',
+						body: data
+					})
+					.then((response) => response.json())
+					.then((data) => {
+						console.log("data: ");
+						console.log(data);
+					})
+					.catch((error) => {
+						console.log("error: ");
+						console.log(error);
+					});
+				};
+			</script>
+			<?php
+		return ob_get_clean();
+	}
 
 
-//	/**
-//	 * function that add the ajax script to front
-//	 * no real needs to check if already included :
-//	 * - $handle is uniq so it will not be re-enqueued
-//	 * 	the first enqueued version would be kept
-//	 * - if we used add_var_to_front() (which use wp_add_inline_script())
-//	 * 	the vars would be added twice
-//	 * 	leading to js syntaxe error (redeclaraiton of 'let' or 'const')
-//	 * - but we use wp_localize_script() so the object will be overwritten
-//	 * 	it's not a real pbm
-//	 * 	(what is more efficient, check for double or overwritte object ?)
-//	 */
-//	public function add_ajax_post() {
-//		global $fipfcard_first_script;
-//		global $fipfcard_ajax_file;
-//
-//		$file = fipfcard_init_file($fipfcard_ajax_file);
-//
-//	//	// check if ajax script was already enqueued
-//	//	global $wp_scripts;
-//	//	$already_enqueued = array_search($file->handle, $wp_scripts->queue);
-//	//	if ($already_enqueued !== false)
-//	//		return ;
-//
-//		$fipfcard_first_script = $file->handle;
-//		wp_enqueue_script( $file->handle, $file->url, '', $file->version, true);
-//
-//		$_url = admin_url( 'admin-ajax.php' );
-//		$_nonce = wp_create_nonce( 'wp-pageviews-nonce' );
-//		$vars = compact("_url","_nonce",);
-//	//	add_var_to_front($vars);
-//		$object_name = "fipfcard_ajax";
-//		wp_localize_script($file->handle, $object_name, $vars);
-//
-//	}
+	/**
+	 * function that add the ajax script to front
+	 * no real needs to check if already included :
+	 * - $handle is uniq so it will not be re-enqueued
+	 * 	the first enqueued version would be kept
+	 * - if we used add_var_to_front() (which use wp_add_inline_script())
+	 * 	the vars would be added twice
+	 * 	leading to js syntaxe error (redeclaraiton of 'let' or 'const')
+	 * - but we use wp_localize_script() so the object will be overwritten
+	 * 	it's not a real pbm
+	 * 	(what is more efficient, check for double or overwritte object ?)
+	 */
+	public function add_ajax_script() {
+		if (is_null($this->_first_script))
+			return ;
+		if (self::$_ajax_already_there)
+			return ;
+
+		$ajax_script = $this->get_ajax_script();
+		wp_add_inline_script($this->_first_script, $ajax_script, 'before');
+	}
 
 
 
@@ -104,8 +132,6 @@ class PLGNTOOLS
 		$file->path = $this->get_path().$dir_path.$file_name;
 		$file->version = date("ymd-Gis", filemtime($file->path));
 
-		error_log(json_encode($file));
-
 		return $file;
 	}
 
@@ -123,16 +149,13 @@ class PLGNTOOLS
 		//wp_enqueue_script(<give_it_a_name>, /url/to/file, [depends on], version, defer? );
 		//wp_enqueue_style( <give_it_a_name>, /url/to/file, [depends on], version, media );
 
-//		if ($add_ajax === true)
-//			fipfcard_add_ajax_post();
-
 		$previous_css_basename = '';
 		$previous_js_basename = '';
 		foreach ($files_arr as $file_name) {
 			$file = $this->init_file($file_name);
 			if ($file->ext === "js") {
-				if (is_null($this->$_first_script))
-					$this->$_first_script = $file->handle;
+				if (is_null($this->_first_script))
+					$this->_first_script = $file->handle;
 				wp_enqueue_script( $file->handle, $file->url, $previous_js_basename, $file->version, true);
 				$previous_js_basename = $file->basename;
 			}
@@ -141,6 +164,9 @@ class PLGNTOOLS
 				$previous_css_basename = $file->basename;
 			}
 		}
+
+		if ($add_ajax === true)
+			$this->add_ajax_script();
 	}
 
 
@@ -159,7 +185,7 @@ class PLGNTOOLS
 	 */
 	public function add_var_to_front($vars, $handle = null) {
 		if (is_null($handle)) {
-			$handle = $this->$_first_script;
+			$handle = $this->_first_script;
 		}
 		
 		extract($vars);