diff --git a/htdocs/compta/facture/class/facture-rec.class.php b/htdocs/compta/facture/class/facture-rec.class.php
index 1651407d746..565e63fd749 100644
--- a/htdocs/compta/facture/class/facture-rec.class.php
+++ b/htdocs/compta/facture/class/facture-rec.class.php
@@ -125,8 +125,8 @@ class FactureRec extends Facture
 			$sql.= ", '".$facsrc->socid."'";
 			$sql.= ", ".$conf->entity;
 			$sql.= ", ".$this->db->idate($now);
-			$sql.= ", '".$facsrc->amount."'";
-			$sql.= ", '".$facsrc->remise."'";
+			$sql.= ", ".(!empty($facsrc->amount)?$facsrc->amount:'0');
+			$sql.= ", ".(!empty($facsrc->remise)?$this->remise:'0');
 			$sql.= ", ".(!empty($this->note_private)?("'".$this->db->escape($this->note_private)."'"):"NULL");
 			$sql.= ", ".(!empty($this->note_public)?("'".$this->db->escape($this->note_public)."'"):"NULL");
 			$sql.= ", '".$user->id."'";
diff --git a/htdocs/projet/class/project.class.php b/htdocs/projet/class/project.class.php
index dc438d2b929..bb37d9eeeb8 100644
--- a/htdocs/projet/class/project.class.php
+++ b/htdocs/projet/class/project.class.php
@@ -1286,7 +1286,6 @@ class Project extends CommonObject
 	  */
 	function select_element($Tablename)
 	{
-		global $db;
 
 		$projectkey="fk_projet";
 		switch ($Tablename)
@@ -1316,25 +1315,27 @@ class Project extends CommonObject
 		} 
 		$sql.= " ORDER BY ref DESC";
 
-		dol_syslog("Project.Lib::select_element sql=".$sql);
+		dol_syslog(get_class($this).'::select_element sql='.$sql,LOG_DEBUG);
 
-		$resql=$db->query($sql);
+		$resql=$this->db->query($sql);
 		if ($resql)
 		{
-			$num = $db->num_rows($resql);
+			$num = $this->db->num_rows($resql);
 			$i = 0;
 			if ($num > 0)
 			{
 				$sellist = '<select class="flat" name="elementselect">';
 				while ($i < $num)
 				{
-					$obj = $db->fetch_object($resql);
+					$obj = $this->db->fetch_object($resql);
 					$sellist .='<option value="'.$obj->rowid.'">'.$obj->ref.'</option>';
 					$i++;
 				}
 				$sellist .='</select>';
 			}
 			return $sellist ;
+			
+			$this->db->free($resql);
 		}
 	}
 	
@@ -1347,8 +1348,8 @@ class Project extends CommonObject
 	  */
 	function update_element($TableName, $ElementSelectId)
 	{
-		global $db;
-		$sql="update ".MAIN_DB_PREFIX.$TableName;
+		$sql="UPDATE ".MAIN_DB_PREFIX.$TableName;
+		
 		if ($TableName=="actioncomm")
 		{
 			$sql.= " SET fk_project=".$this->id;
@@ -1359,7 +1360,17 @@ class Project extends CommonObject
 			$sql.= " SET fk_projet=".$this->id;
 			$sql.= " WHERE rowid=".$ElementSelectId;
 		}
-		$resql=$db->query($sql);
+		
+		dol_syslog(get_class($this)."::update_element sql=" . $sql, LOG_DEBUG);
+		$resql=$this->db->query($sql);
+		if (!$resql) {
+			$this->error=$this->db->lasterror();	
+			dol_syslog(get_class($this)."::update_element error : " . $this->error, LOG_ERR);
+			return -1;
+		}else {
+			return 1;
+		}
+			
 	}
 }
 
diff --git a/htdocs/projet/element.php b/htdocs/projet/element.php
index e47c36fa191..3f686bdecaf 100644
--- a/htdocs/projet/element.php
+++ b/htdocs/projet/element.php
@@ -46,8 +46,10 @@ if (! empty($conf->commande->enabled)) 	$langs->load("orders");
 if (! empty($conf->propal->enabled))   	$langs->load("propal");
 if (! empty($conf->ficheinter->enabled))	$langs->load("interventions");
 
-$projectid=GETPOST('id');
-$ref=GETPOST('ref');
+$projectid=GETPOST('id','int');
+$ref=GETPOST('ref','alpha');
+$action=GETPOST('action','alpha');
+
 if ($projectid == '' && $ref == '')
 {
 	dol_print_error('','Bad parameter');
@@ -62,6 +64,8 @@ if ($ref)
 {
     $project->fetch(0,$ref);
     $projectid=$project->id;
+}else {
+	$project->fetch($projectid);
 }
 
 // Security check
@@ -82,7 +86,7 @@ $form = new Form($db);
 $userstatic=new User($db);
 
 $project = new Project($db);
-$project->fetch($_GET["id"],$_GET["ref"]);
+$project->fetch($projectid,$ref);
 $project->societe->fetch($project->societe->id);
 
 // To verify role of users
@@ -191,7 +195,10 @@ if ($action=="addelement")
 {
 	$tablename = GETPOST("tablename");
 	$elementselectid = GETPOST("elementselect");
-	$project->update_element($tablename, $elementselectid);
+	$result=$project->update_element($tablename, $elementselectid);
+	if ($result<0) {
+		setEventMessage($mailchimp->error,'errors');
+	}
 }
 
 foreach ($listofreferent as $key => $value)