diff --git a/lib/system/system_plugin/plugin.php b/lib/system/system_plugin/plugin.php
index 301bc2e..852a7ef 100755
--- a/lib/system/system_plugin/plugin.php
+++ b/lib/system/system_plugin/plugin.php
@@ -399,6 +399,46 @@ var $comment	= null;
 		return true;
 	}
 
+ //
+ // NodeSettings
+ //
+
+/**
+* __insertNodeSettings : methode apres ajout d'un nodesettings
+* @abstract
+* @access public
+* @param object NodeSettings
+* @return booleen
+*/
+	function __insertNodeSettings($Node)
+	{
+		return true;
+	}
+
+/**
+* __updateNodeSettings : methode apres modification d'un nodesettings
+* @abstract
+* @access public
+* @param object NodeSettings
+* @return booleen
+*/
+	function __updateNodeSettings($Node)
+	{
+		return true;
+	}
+
+/**
+* __deleteNodeSettings : methode avant suppression d'un nosesettings
+* @abstract
+* @access public
+* @param object NodeSettings
+* @return booleen
+*/
+	function __deleteNodeSettings($Node)
+	{
+		return true;
+	}
+
 
  //
  // Language