diff --git a/dev/skeletons/modMyModule.class.php b/dev/skeletons/modMyModule.class.php
index 80fe076c75f..2ef4f12efbe 100644
--- a/dev/skeletons/modMyModule.class.php
+++ b/dev/skeletons/modMyModule.class.php
@@ -88,8 +88,8 @@ class modMyModule extends DolibarrModules
 
 		// Constants
 		$this->const = array();			// List of particular constants to add when module is enabled
-		//Example: $this->const=array(0=>array('MODULE_MY_NEW_CONST1','chaine','myvalue','This is a constant to add',0),
-		//                            1=>array('MODULE_MY_NEW_CONST2','chaine','myvalue','This is another constant to add',0) );
+		//Example: $this->const=array(0=>array('MYMODULE_MYNEWCONST1','chaine','myvalue','This is a constant to add',0),
+		//                            1=>array('MYMODULE_MYNEWCONST2','chaine','myvalue','This is another constant to add',0) );
 
 		// Array to add new pages in new tabs
 		$this->tabs = array('entity:Title:@mymodule:/mymodule/mynewtab.php?id=__ID__');
@@ -132,7 +132,7 @@ class modMyModule extends DolibarrModules
 
 
 		// Main menu entries
-		$this->menu = array();			// List of menus to add
+		$this->menus = array();			// List of menus to add
 		$r=0;
 
 		// Add here entries to declare new menus
diff --git a/htdocs/admin/produit.php b/htdocs/admin/produit.php
index f18664ca5f6..294b68e1ef5 100644
--- a/htdocs/admin/produit.php
+++ b/htdocs/admin/produit.php
@@ -104,20 +104,6 @@ else if ($_POST["action"] == 'viewProdDescInForm')
 {
 	dolibarr_set_const($db, "PRODUIT_DESC_IN_FORM", $_POST["activate_viewProdDescInForm"],'chaine',0,'',$conf->entity);
 }
-/*
-else if ($_POST["action"] == 'confirmDeleteProdLineInForm')
-{
-	dolibarr_set_const($db, "PRODUIT_CONFIRM_DELETE_LINE", $_POST["activate_confirmDeleteProdLineInForm"],'chaine',0,'',$conf->entity);
-}
-*/
-else if ($_POST["action"] == 'ProductCanvasAbility')
-{
-	// Create temp directory for smarty
-	if (! empty($dolibarr_smarty_compile)) create_exdir($dolibarr_smarty_compile);
-	if (! empty($dolibarr_smarty_cache))   create_exdir($dolibarr_smarty_cache);
-
-	dolibarr_set_const($db, "MAIN_NEED_SMARTY", $_POST["ProductCanvasAbility"],'chaine',0,'',$conf->entity);
-}
 else if ($_POST["action"] == 'usesearchtoselectproduct')
 {
 	dolibarr_set_const($db, "PRODUIT_USE_SEARCH_TO_SELECT", $_POST["activate_usesearchtoselectproduct"],'chaine',0,'',$conf->entity);
diff --git a/htdocs/core/conf.class.php b/htdocs/core/conf.class.php
index 182023c98eb..bff3baace8a 100644
--- a/htdocs/core/conf.class.php
+++ b/htdocs/core/conf.class.php
@@ -53,6 +53,7 @@ class Conf
 
 	var $css_modules=array();
 	var $tabs_modules=array();
+	var $need_smarty=array();
 	var $modules=array();
 
 	var $logbuffer=array();
@@ -139,13 +140,19 @@ class Conf
 							//print '->'.$module.'->'.$dir_name.' = '.$this->$module->$dir_name.'<br>';
 						}
 					}
+					// If this is constant for a smarty need by a module
+					if (eregi('^MAIN_MODULE_([A-Z_]+)_NEEDSMARTY$',$key) && $value)
+					{
+						$module=strtolower($reg[1]);
+						// Add this module in list of module that need smarty
+						$this->need_smarty[]=$module;
+					}
 					// If this is a module constant
 					if (eregi('^MAIN_MODULE_([A-Z]+)$',$key,$reg) && $value)
 					{
 						$module=strtolower($reg[1]);
 						//print "Module ".$module." is enabled<br>\n";
 						$this->$module->enabled=true;
-
 						// Add this module in list of enabled modules
 						$this->modules[]=$module;
 					}
diff --git a/htdocs/includes/modules/modDroitPret.class.php b/htdocs/includes/modules/modDroitPret.class.php
index 04974b92a01..ad049d31987 100644
--- a/htdocs/includes/modules/modDroitPret.class.php
+++ b/htdocs/includes/modules/modDroitPret.class.php
@@ -73,16 +73,10 @@ class modDroitPret  extends DolibarrModules
 		// Config pages
 		$this->config_page_url = array("droitpret.php");
 
-		// Constantes
-		$this->const=array();
-		$r=0;
-
-		$r++;
-		$this->const[$r][0] = "MAIN_NEED_SMARTY";
-		$this->const[$r][1] = "chaine";
-		$this->const[$r][2] = 1;
-		$this->const[$r][3] = 'Need smarty';
-		$this->const[$r][4] = 0;
+		// Constants
+		//Example: $this->const=array(0=>array('MYMODULE_MYNEWCONST1','chaine','myvalue','This is a constant to add',0),
+		//                            1=>array('MYMODULE_MYNEWCONST2','chaine','myvalue','This is another constant to add',0) );
+		$this->const=array(1=>array('MAIN_MODULE_DROITPRET_NEEDSMARTY',"chaine",1,'Need smarty',0));
 
 		// Boxes
 		$this->boxes = array();
diff --git a/htdocs/includes/modules/modEditeur.class.php b/htdocs/includes/modules/modEditeur.class.php
index e294d993a93..c39d5e5582e 100644
--- a/htdocs/includes/modules/modEditeur.class.php
+++ b/htdocs/includes/modules/modEditeur.class.php
@@ -75,10 +75,12 @@ class modEditeur extends DolibarrModules
 		$this->needtotopmenu = array();
 		$this->langfiles = array("orders","bills","companies");
 
-		// Constantes
-		$this->const=array(1=>array('MAIN_NEED_SMARTY','chaine',1,'Need smarty',0));
+		// Constants
+		//Example: $this->const=array(0=>array('MYMODULE_MYNEWCONST1','chaine','myvalue','This is a constant to add',0),
+		//                            1=>array('MYMODULE_MYNEWCONST2','chaine','myvalue','This is another constant to add',0) );
+		$this->const=array(1=>array('MAIN_MODULE_DROITPRET_NEEDSMARTY','chaine',1,'Need smarty',0));
 
-		// Boites
+		// Boxes
 		$this->boxes = array();
 
 		// Permissions
diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index fa20e709aa1..4de3eb60fa9 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -569,11 +569,10 @@ else                        // Si utilisateur externe
 }
 
 
-// For modules using Smarty
-if ($conf->global->MAIN_NEED_SMARTY)
+// If there is at least one module using Smarty
+if (sizeof($conf->need_smarty) > 0)
 {
-	// SMARTY
-	// Definit dans le fichier de conf
+	// SMARTY (Defined into conf file)
 	// $dolibarr_smarty_libs_dir="/home/www/dolibarr/external-libs/smarty/libs/";
 	// $dolibarr_smarty_compile="/home/www/dolibarr/documents/smarty/templates/temp";
 	// $dolibarr_smarty_cache="/home/www/dolibarr/documents/smarty/cache/temp";