diff --git a/htdocs/admin/mailman.php b/htdocs/admin/mailman.php
index f4d2010ca74..3e4a2c14a98 100644
--- a/htdocs/admin/mailman.php
+++ b/htdocs/admin/mailman.php
@@ -158,7 +158,8 @@ $head = mailmanspip_admin_prepare_head();
 
 dol_fiche_head($head, 'mailman', $langs->trans("Setup"), 0, 'user');
 
-$var=!$var;
+$var=true;
+
 if (! empty($conf->global->ADHERENT_USE_MAILMAN))
 {
     //$lien=img_picto($langs->trans("Active"),'tick').' ';
diff --git a/htdocs/admin/spip.php b/htdocs/admin/spip.php
index af46c074bb9..9c81338562e 100644
--- a/htdocs/admin/spip.php
+++ b/htdocs/admin/spip.php
@@ -117,10 +117,11 @@ $head = mailmanspip_admin_prepare_head();
 
 dol_fiche_head($head, 'spip', $langs->trans("Setup"), 0, 'user');
 
+$var=true;
+
 /*
  * Spip
  */
-$var=!$var;
 if (! empty($conf->global->ADHERENT_USE_SPIP))
 {
     //$lien=img_picto($langs->trans("Active"),'tick').' ';
diff --git a/htdocs/barcode/printsheet.php b/htdocs/barcode/printsheet.php
index d862cb5da8f..0ce692674b1 100644
--- a/htdocs/barcode/printsheet.php
+++ b/htdocs/barcode/printsheet.php
@@ -121,8 +121,8 @@ if ($action == 'builddoc')
 	if (! $error)
 	{
 		$code=$forbarcode;
-		$generator=$stdobject->barcode_type_coder;
-		$encoding=strtoupper($stdobject->barcode_type_code);
+		$generator=$stdobject->barcode_type_coder;				// coder (loaded by fetch_barcode). Engine.
+		$encoding=strtoupper($stdobject->barcode_type_code);	// code (loaded by fetch_barcode). Example 'ean', 'isbn', ...
 		$barcodeimage=$conf->barcode->dir_temp.'/barcode_'.$code.'_'.$encoding.'.png';
 
 		$diroutput=$conf->barcode->dir_temp;
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 1b0438bdea1..1a9195e069d 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -633,7 +633,7 @@ abstract class CommonObject
 
     /**
      *	Load data for barcode into properties ->barcode_type*
-     *	Properties ->barcode_type that is id of barcode type is used to find other properties, but
+     *	Properties ->barcode_type that is id of barcode. Type is used to find other properties, but
      *  if it is not defined, ->element must be defined to know default barcode type.
      *
      *	@return		int			<0 if KO, 0 if can't guess type of barcode (ISBN, EAN13...), >0 if OK (all barcode properties loaded)
@@ -3029,7 +3029,7 @@ abstract class CommonObject
       	        });</script>';
     	    if (!empty($hidemargininfos)) print '<script>$(document).ready(function() {$(".margininfos").hide();});</script>';
 		}
-		
+
 		print '<table class="noborder margintable" width="100%">';
 		print '<tr class="liste_titre">';
 		print '<td class="liste_titre">'.$langs->trans('Margins').'</td>';
diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index e2898943509..390f250f5d9 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -124,9 +124,9 @@ class Product extends CommonObject
 	//! barcode
 	var $barcode;               // value
 	var $barcode_type;          // id
-	var $barcode_type_code;     // code (loaded by fetch_barcode). Example ean, isbn...
+	var $barcode_type_code;     // code  (loaded by fetch_barcode). Example 'ean', 'isbn', ...
 	var $barcode_type_label;    // label (loaded by fetch_barcode)
-	var $barcode_type_coder;    // coder (loaded by fetch_barcode)
+	var $barcode_type_coder;    // coder (loaded by fetch_barcode). Engine.
 
 	var $stats_propale=array();
 	var $stats_commande=array();