diff --git a/htdocs/product/list.php b/htdocs/product/list.php
index ebcfed98c80..38c3c0c80ea 100644
--- a/htdocs/product/list.php
+++ b/htdocs/product/list.php
@@ -33,6 +33,8 @@
  *  \brief      Page to list products and services
  */
 
+
+// Load Dolibarr environment
 require '../main.inc.php';
 require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
 require_once DOL_DOCUMENT_ROOT.'/fourn/class/fournisseur.product.class.php';
@@ -51,12 +53,15 @@ if (!empty($conf->productbatch->enabled)) {
 	$langs->load("productbatch");
 }
 
+
+// Get parameters
 $action = GETPOST('action', 'aZ09');
 $massaction = GETPOST('massaction', 'alpha');
 $show_files = GETPOST('show_files', 'int');
 $confirm = GETPOST('confirm', 'alpha');
 $toselect = GETPOST('toselect', 'array');
 
+// Search Criterias
 $sall = trim((GETPOST('search_all', 'alphanohtml') != '') ?GETPOST('search_all', 'alphanohtml') : GETPOST('sall', 'alphanohtml'));
 $search_id = GETPOST("search_id", 'alpha');
 $search_ref = GETPOST("search_ref", 'alpha');