diff --git a/htdocs/core/boxes/box_activity.php b/htdocs/core/boxes/box_activity.php
index d26f4f8fdfc..253b0b4800c 100644
--- a/htdocs/core/boxes/box_activity.php
+++ b/htdocs/core/boxes/box_activity.php
@@ -22,6 +22,9 @@
 
 include_once(DOL_DOCUMENT_ROOT."/core/boxes/modules_boxes.php");
 
+/**
+ * Class to manage the box of customer activity (invoice, order, proposal)
+ */
 class box_activity extends ModeleBoxes
 {
 	var $boxcode="activity";
@@ -36,7 +39,7 @@ class box_activity extends ModeleBoxes
 	var $info_box_contents = array();
 
 	/**
-	 *      \brief      Constructeur de la classe
+	 *	Constructor
 	 */
 	function box_activity()
 	{
@@ -50,10 +53,12 @@ class box_activity extends ModeleBoxes
 	}
 
 	/**
-	 *      \brief      Charge les donnees en memoire pour affichage ulterieur
-	 *      \param      $max        Nombre maximum d'enregistrements a charger
+	 *  Charge les donnees en memoire pour affichage ulterieur
+	 *
+     *  @param	int		$max        Maximum number of records to load
+     *  @return	void
 	 */
-	function loadBox()
+	function loadBox($max=5)
 	{
 		global $conf, $user, $langs, $db;
 
@@ -219,6 +224,13 @@ class box_activity extends ModeleBoxes
 		$this->info_box_contents[$i][5] = array('td' => 'align="right"', 'text' => "");
 	}
 
+	/**
+	 *	Method to show box
+	 *
+	 *	@param	array	$head       Array with properties of box title
+	 *	@param  array	$contents   Array with properties of box lines
+	 *	@return	void
+	 */
 	function showBox($head = null, $contents = null)
 	{
 		parent::showBox($this->info_box_head, $this->info_box_contents);