diff --git a/htdocs/adherents/admin/adherent.php b/htdocs/adherents/admin/adherent.php
index 0a251536ff6..670260f1287 100644
--- a/htdocs/adherents/admin/adherent.php
+++ b/htdocs/adherents/admin/adherent.php
@@ -68,11 +68,11 @@ if ($action == 'update' || $action == 'add')
 
 	if (! $error)
 	{
-		$mesg = '<div class="ok">'.$langs->trans("SetupSaved").'</div>';
+		setEventMessage($langs->trans("SetupSaved"));
 	}
 	else
 	{
-		$mesg = '<div class="error">'.$langs->trans("Error").'</div>';
+		setEventMessage($langs->trans("Error"), 'errors');
 	}
 }
 
@@ -117,10 +117,6 @@ $head = member_admin_prepare_head();
 
 dol_fiche_head($head, 'general', $langs->trans("Members"), 0, 'user');
 
-
-dol_htmloutput_mesg($mesg);
-
-
 print_fiche_titre($langs->trans("MemberMainOptions"),'','');
 print '<table class="noborder" width="100%">';
 print '<tr class="liste_titre">';
diff --git a/htdocs/adherents/ldap.php b/htdocs/adherents/ldap.php
index ca651854a24..b02fa90baa9 100644
--- a/htdocs/adherents/ldap.php
+++ b/htdocs/adherents/ldap.php
@@ -75,12 +75,12 @@ if ($action == 'dolibarr2ldap')
 
 	if ($result >= 0)
 	{
-		$message.='<div class="ok">'.$langs->trans("MemberSynchronized").'</div>';
+		setEventMessage($langs->trans("MemberSynchronized"));
 		$db->commit();
 	}
 	else
 	{
-		$message.='<div class="error">'.$ldap->error.'</div>';
+		setEventMessage($ldap->error, 'errors');
 		$db->rollback();
 	}
 }
diff --git a/htdocs/admin/external_rss.php b/htdocs/admin/external_rss.php
index 1944521a581..f23e80f78ff 100644
--- a/htdocs/admin/external_rss.php
+++ b/htdocs/admin/external_rss.php
@@ -105,7 +105,6 @@ if ($action == 'add' || GETPOST("modify"))
         if ($result1 && $result2)
         {
             $db->commit();
-	  		//$mesg='<div class="ok">'.$langs->trans("Success").'</div>';
             header("Location: ".$_SERVER["PHP_SELF"]);
             exit;
         }
@@ -171,7 +170,6 @@ if ($_POST["delete"])
         if ($result1 && $result2)
         {
             $db->commit();
-	  		//$mesg='<div class="ok">'.$langs->trans("Success").'</div>';
             header("Location: external_rss.php");
             exit;
         }
diff --git a/htdocs/admin/menus/edit.php b/htdocs/admin/menus/edit.php
index d99a02308b7..42d1ed5c9ca 100644
--- a/htdocs/admin/menus/edit.php
+++ b/htdocs/admin/menus/edit.php
@@ -39,7 +39,6 @@ $dirsmartphone = "/core/menus/smartphone";
 $dirmenu = array($dirstandard,$dirsmartphone);
 
 $action=GETPOST('action');
-$mesg=GETPOST('mesg');
 
 $menu_handler_top=$conf->global->MAIN_MENU_STANDARD;
 $menu_handler_smartphone=$conf->global->MAIN_MENU_SMARTPHONE;
@@ -79,16 +78,16 @@ if ($action == 'update')
             $result=$menu->update($user);
             if ($result > 0)
             {
-                $mesg='<div class="ok">'.$langs->trans("RecordModifiedSuccessfully").'</div>';
+	            setEventMessage($langs->trans("RecordModifiedSuccessfully"));
             }
             else
             {
-                $mesg='<div class="error">'.$menu->error.'</div>';
+	            setEventMessage($menu->error, 'errors');
             }
         }
         else
         {
-            $mesg='<div class="error">'.$menu->error.'</div>';
+	        setEventMessage($menu->error, 'errors');
         }
         $_GET["menuId"] = $_POST['menuId'];
         $action = "edit";
@@ -136,37 +135,37 @@ if ($action == 'add')
     $error=0;
     if (! $error && ! $_POST['menu_handler'])
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("MenuHandler")).'</div>';
+	    setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("MenuHandler")), 'errors');
         $action = 'create';
         $error++;
     }
     if (! $error && ! $_POST['type'])
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("Type")).'</div>';
+	    setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("Type")), 'errors');
         $action = 'create';
         $error++;
     }
     if (! $error && ! $_POST['url'])
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->trans("Url")).'</div>';
+	    setEventMessage($langs->trans("ErrorFieldRequired",$langs->trans("Url")), 'errors');
         $action = 'create';
         $error++;
     }
     if (! $error && ! $_POST['titre'])
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->trans("Title")).'</div>';
+	    setEventMessage($langs->trans("ErrorFieldRequired",$langs->trans("Title")), 'errors');
         $action = 'create';
         $error++;
     }
     if (! $error && $_POST['menuId'] && $_POST['type'] == 'top')
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorTopMenuMustHaveAParentWithId0").'</div>';
+	    setEventMessage($langs->trans("ErrorTopMenuMustHaveAParentWithId0"), 'errors');
         $action = 'create';
         $error++;
     }
     if (! $error && empty($_POST['menuId']) && $_POST['type'] == 'left')
     {
-        $mesg='<div class="error">'.$langs->trans("ErrorLeftMenuMustHaveAParentId").'</div>';
+	    setEventMessage($langs->trans("ErrorLeftMenuMustHaveAParentId"), 'errors');
         $action = 'create';
         $error++;
     }
@@ -205,7 +204,7 @@ if ($action == 'add')
         else
         {
             $action = 'create';
-            $mesg='<div class="error">'.$menu->error.'</div>';
+	        setEventMessage($menu->error, 'errors');
         }
     }
 }
@@ -223,7 +222,7 @@ if ($action == 'confirm_delete' && $_POST["confirm"] == 'yes')
         $this->db->commit();
 
         llxHeader();
-        print '<div class="ok">'.$langs->trans("MenuDeleted").'</div>';
+	    setEventMessage($langs->trans("MenuDeleted"));
         llxFooter();
         exit ;
     }
@@ -375,8 +374,6 @@ if ($action == 'create')
     print '<input type="submit" class="button" name="cancel" value="'.$langs->trans("Cancel").'"></center>';
 
     print '</form>';
-
-    dol_htmloutput_mesg($mesg);
 }
 elseif ($action == 'edit')
 {
@@ -463,8 +460,6 @@ elseif ($action == 'edit')
     print '</form>';
 
     print '<br>';
-
-    dol_htmloutput_mesg($mesg);
 }
 
 
diff --git a/htdocs/admin/tools/update.php b/htdocs/admin/tools/update.php
index d58e7444e71..15d5b5f3d52 100644
--- a/htdocs/admin/tools/update.php
+++ b/htdocs/admin/tools/update.php
@@ -54,7 +54,7 @@ if (GETPOST('action','alpha')=='install')
 	if (! $original_file)
 	{
 		$langs->load("Error");
-		$mesg = '<div class="warning">'.$langs->trans("ErrorFileRequired").'</div>';
+		setEventMessage($langs->trans("ErrorFileRequired"), 'warnings');
 		$error++;
 	}
 	else
@@ -62,7 +62,7 @@ if (GETPOST('action','alpha')=='install')
 		if (! preg_match('/\.zip/i',$original_file))
 		{
 			$langs->load("errors");
-			$mesg = '<div class="error">'.$langs->trans("ErrorFileMustBeADolibarrPackage",$original_file).'</div>';
+			setEventMessage($langs->trans("ErrorFileMustBeADolibarrPackage",$original_file), 'errors');
 			$error++;
 		}
 	}
@@ -80,12 +80,11 @@ if (GETPOST('action','alpha')=='install')
 			if (! empty($result['error']))
 			{
 				$langs->load("errors");
-				$mesg = '<div class="error">'.$langs->trans($result['error'],$original_file).'</div>';
-
+				setEventMessage($langs->trans($result['error'],$original_file), 'errors');
 			}
 			else
 			{
-				$mesg = '<div class="ok">'.$langs->trans("SetupIsReadyForUse").'</div>';
+				setEventMessage($langs->trans("SetupIsReadyForUse"));
 			}
 		}
 	}
@@ -107,9 +106,6 @@ print $langs->trans("CurrentVersion").' : <b>'.DOL_VERSION.'</b><br>';
 print $langs->trans("LastStableVersion").' : <b>'.$langs->trans("FeatureNotYetAvailable").'</b><br>';
 print '<br>';
 
-//dol_htmloutput_errors($mesg);
-dol_htmloutput_mesg($mesg);
-
 print $langs->trans("Upgrade").'<br>';
 print '<hr>';
 print $langs->trans("ThisIsProcessToFollow").'<br>';
diff --git a/htdocs/comm/mailing/fiche.php b/htdocs/comm/mailing/fiche.php
index 60c587ac674..7bdc4680853 100644
--- a/htdocs/comm/mailing/fiche.php
+++ b/htdocs/comm/mailing/fiche.php
@@ -107,7 +107,7 @@ if ($action == 'confirm_clone' && $confirm == 'yes')
 {
 	if (empty($_REQUEST["clone_content"]) && empty($_REQUEST["clone_receivers"]))
 	{
-		$mesg='<div class="error">'.$langs->trans("NoCloneOptionsSpecified").'</div>';
+		setEventMessage($langs->trans("NoCloneOptionsSpecified"), 'errors');
 	}
 	else
 	{
@@ -119,7 +119,7 @@ if ($action == 'confirm_clone' && $confirm == 'yes')
 		}
 		else
 		{
-			$mesg=$object->error;
+			setEventMessage($object->error, 'errors');
 		}
 	}
     $action='';
@@ -130,16 +130,17 @@ if ($action == 'sendallconfirmed' && $confirm == 'yes')
 {
 	if (empty($conf->global->MAILING_LIMIT_SENDBYWEB))
 	{
+		//TODO: What is this for?
 		// Pour des raisons de securite, on ne permet pas cette fonction via l'IHM,
 		// on affiche donc juste un message
-		$mesg='<div class="warning">'.$langs->trans("MailingNeedCommand").'</div>';
-		$mesg.='<br><textarea cols="70" rows="'.ROWS_2.'" wrap="soft">php ./scripts/emailings/mailing-send.php '.$object->id.'</textarea>';
-		$mesg.='<br><br><div class="warning">'.$langs->trans("MailingNeedCommand2").'</div>';
+		setEventMessage($langs->trans("MailingNeedCommand"), 'warnings');
+		setEventMessage('<textarea cols="70" rows="'.ROWS_2.'" wrap="soft">php ./scripts/emailings/mailing-send.php '.$object->id.'</textarea>', 'warnings');
+		setEventMessage($langs->trans("MailingNeedCommand2"), 'warnings');
 		$action='';
 	}
 	else if ($conf->global->MAILING_LIMIT_SENDBYWEB < 0)
 	{
-		$mesg='<div class="warning">'.$langs->trans("NotEnoughPermissions").'</div>';
+		setEventMessage($langs->trans("NotEnoughPermissions"), 'warnings');
 		$action='';
 	}
 	else
@@ -390,7 +391,7 @@ if ($action == 'send' && empty($_POST["cancel"]))
 	$object->sendto = $_POST["sendto"];
 	if (! $object->sendto)
 	{
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->trans("MailTo")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->trans("MailTo")), 'errors');
 		$error++;
 	}
 
@@ -430,11 +431,11 @@ if ($action == 'send' && empty($_POST["cancel"]))
 		$result=$mailfile->sendfile();
 		if ($result)
 		{
-			$mesg='<div class="ok">'.$langs->trans("MailSuccessfulySent",$mailfile->getValidAddress($object->email_from,2),$mailfile->getValidAddress($object->sendto,2)).'</div>';
+			setEventMessage($langs->trans("MailSuccessfulySent",$mailfile->getValidAddress($object->email_from,2),$mailfile->getValidAddress($object->sendto,2)));
 		}
 		else
 		{
-			$mesg='<div class="error">'.$langs->trans("ResultKo").'<br>'.$mailfile->error.' '.$result.'</div>';
+			setEventMessage($langs->trans("ResultKo").'<br>'.$mailfile->error.' '.$result, 'errors');
 		}
 
 		$action='';
@@ -467,7 +468,7 @@ if ($action == 'add')
 		$mesg=$object->error;
 	}
 
-	$mesg='<div class="error">'.$mesg.'</div>';
+	setEventMessage($mesg, 'errors');
 	$action="create";
 }
 
@@ -494,7 +495,7 @@ if ($action == 'settitre' || $action == 'setemail_from' || $actino == 'setreplyt
 		$mesg=$object->error;
 	}
 
-	$mesg='<div class="error">'.$mesg.'</div>';
+	setEventMessage($mesg, 'errors');
 	$action="";
 }
 
@@ -552,7 +553,7 @@ if ($action == 'update' && empty($_POST["removedfile"]) && empty($_POST["cancel"
 			$mesg=$object->error;
 		}
 
-		$mesg='<div class="error">'.$mesg.'</div>';
+		setEventMessage($mesg, 'errors');
 		$action="edit";
 	}
 	else
@@ -598,7 +599,7 @@ if ($action == 'confirm_reset' && $confirm == 'yes')
 		}
 		else
 		{
-			$mesg=$object->error;
+			setEventMessage($object->error, 'errors');
 			$db->rollback();
 		}
 	}
@@ -646,8 +647,6 @@ if ($action == 'create')
 
 	print_fiche_titre($langs->trans("NewMailing"));
 
-	dol_htmloutput_mesg($mesg);
-
 	print '<table class="border" width="100%">';
 	print '<tr><td width="25%" class="fieldrequired">'.$langs->trans("MailTitle").'</td><td><input class="flat" name="titre" size="40" value="'.$_POST['titre'].'"></td></tr>';
 	print '<tr><td width="25%" class="fieldrequired">'.$langs->trans("MailFrom").'</td><td><input class="flat" name="from" size="40" value="'.$conf->global->MAILING_EMAIL_FROM.'"></td></tr>';
@@ -829,9 +828,6 @@ else
 				print $form->formconfirm($_SERVER["PHP_SELF"].'?id='.$object->id,$langs->trans('CloneEMailing'),$langs->trans('ConfirmCloneEMailing',$object->ref),'confirm_clone',$formquestion,'yes',2,240);
 			}
 
-
-			dol_htmloutput_mesg($mesg);
-
 			/*
 			 * Boutons d'action
 			 */
@@ -1017,8 +1013,6 @@ else
 			 * Mailing en mode edition
 			 */
 
-			dol_htmloutput_mesg($mesg);
-
 			print '<table class="border" width="100%">';
 
 			// Ref
diff --git a/htdocs/compta/paiement/fiche.php b/htdocs/compta/paiement/fiche.php
index 97f3fb9d47c..74ec9f4cb69 100644
--- a/htdocs/compta/paiement/fiche.php
+++ b/htdocs/compta/paiement/fiche.php
@@ -45,8 +45,6 @@ if ($user->societe_id) $socid=$user->societe_id;
 // TODO ajouter regle pour restreindre acces paiement
 //$result = restrictedArea($user, 'facture', $id,'');
 
-$mesg='';
-
 $object = new Paiement($db);
 
 
@@ -67,7 +65,7 @@ if ($action == 'setnote' && $user->rights->facture->paiement)
     }
     else
     {
-        $mesg='<div class="error">'.$object->error.'</div>';
+	    setEventMessage($object->error, 'errors');
         $db->rollback();
     }
 }
@@ -87,7 +85,7 @@ if ($action == 'confirm_delete' && $confirm == 'yes' && $user->rights->facture->
 	else
 	{
 	    $langs->load("errors");
-		$mesg='<div class="error">'.$langs->trans($object->error).'</div>';
+		setEventMessage($langs->trans($object->error), 'errors');
         $db->rollback();
 	}
 }
@@ -123,7 +121,7 @@ if ($action == 'confirm_valide' && $confirm == 'yes' && $user->rights->facture->
 	else
 	{
 	    $langs->load("errors");
-		$mesg='<div class="error">'.$langs->trans($object->error).'</div>';
+		setEventMessage($langs->trans($object->error), 'errors');
 		$db->rollback();
 	}
 }
@@ -134,11 +132,11 @@ if ($action == 'setnum_paiement' && ! empty($_POST['num_paiement']))
     $res = $object->update_num($_POST['num_paiement']);
 	if ($res === 0)
 	{
-		$mesg = '<div class="ok">'.$langs->trans('PaymentNumberUpdateSucceeded').'</div>';
+		setEventMessage($langs->trans('PaymentNumberUpdateSucceeded'));
 	}
 	else
 	{
-		$mesg = '<div class="error">'.$langs->trans('PaymentNumberUpdateFailed').'</div>';
+		setEventMessage($langs->trans('PaymentNumberUpdateFailed'), 'errors');
 	}
 }
 
@@ -149,11 +147,11 @@ if ($action == 'setdatep' && ! empty($_POST['datepday']))
 	$res = $object->update_date($datepaye);
 	if ($res === 0)
 	{
-		$mesg = '<div class="ok">'.$langs->trans('PaymentDateUpdateSucceeded').'</div>';
+		setEventMessage($langs->trans('PaymentDateUpdateSucceeded'));
 	}
 	else
 	{
-		$mesg = '<div class="error">'.$langs->trans('PaymentDateUpdateFailed').'</div>';
+		setEventMessage($langs->trans('PaymentDateUpdateFailed'), 'errors');
 	}
 }
 
@@ -198,10 +196,6 @@ if ($action == 'valide')
 
 }
 
-
-dol_htmloutput_mesg($mesg);
-
-
 print '<table class="border" width="100%">';
 
 // Ref
diff --git a/htdocs/compta/sociales/charges.php b/htdocs/compta/sociales/charges.php
index 48a8f656959..1583c8ebc49 100644
--- a/htdocs/compta/sociales/charges.php
+++ b/htdocs/compta/sociales/charges.php
@@ -110,13 +110,9 @@ if ($action == 'add' && $user->rights->tax->charges->creer)
 		$chargesociales->amount=$_POST["amount"];
 
 		$id=$chargesociales->create($user);
-		if ($id > 0)
+		if ($id <= 0)
 		{
-			//$mesg='<div class="ok">'.$langs->trans("SocialContributionAdded").'</div>';
-		}
-		else
-		{
-			$mesg='<div class="error">'.$chargesociales->error.'</div>';
+			setEventMessage($chargesociales->error, 'errors');
 		}
 	}
 }
@@ -146,13 +142,9 @@ if ($action == 'update' && ! $_POST["cancel"] && $user->rights->tax->charges->cr
 		$chargesociales->periode=$dateperiod;
 
 		$result=$chargesociales->update($user);
-		if ($result > 0)
+		if ($result <= 0)
 		{
-			//$mesg='<div class="ok">'.$langs->trans("SocialContributionAdded").'</div>';
-		}
-		else
-		{
-			$mesg='<div class="error">'.$chargesociales->error.'</div>';
+			setEventMessage($chargesociales->error, 'errors');
 		}
 	}
 }
diff --git a/htdocs/contact/ldap.php b/htdocs/contact/ldap.php
index 1681324323a..fe3098eaa9a 100644
--- a/htdocs/contact/ldap.php
+++ b/htdocs/contact/ldap.php
@@ -49,8 +49,6 @@ $contact->fetch($id, $user);
 
 if ($action == 'dolibarr2ldap')
 {
-	$message="";
-
 	$db->begin();
 
 	$ldap=new Ldap();
@@ -64,12 +62,12 @@ if ($action == 'dolibarr2ldap')
 
 	if ($result >= 0)
 	{
-		$message.='<div class="ok">'.$langs->trans("ContactSynchronized").'</div>';
+		setEventMessage($langs->trans("ContactSynchronized"));
 		$db->commit();
 	}
 	else
 	{
-		$message.='<div class="error">'.$ldap->error.'</div>';
+		setEventMessage($ldap->error, 'errors');
 		$db->rollback();
 	}
 }
@@ -136,10 +134,6 @@ print '</table>';
 
 print '</div>';
 
-
-dol_htmloutput_mesg($message);
-
-
 /*
  * Barre d'actions
  */
diff --git a/htdocs/core/modules/mailings/xinputfile.modules.php b/htdocs/core/modules/mailings/xinputfile.modules.php
index 3ed72bd2034..777621fa432 100644
--- a/htdocs/core/modules/mailings/xinputfile.modules.php
+++ b/htdocs/core/modules/mailings/xinputfile.modules.php
@@ -137,8 +137,6 @@ class mailing_xinputfile extends MailingTargets
 			{
 				$cpt=0;
 
-				//$mesg = '<div class="ok">'.$langs->trans("FileTransferComplete").'</div>';
-				//print_r($_FILES);
 				$file=$upload_dir . "/" . $_FILES['username']['name'];
 				$handle = @fopen($file, "r");
 				if ($handle)
diff --git a/htdocs/ecm/index.php b/htdocs/ecm/index.php
index e46011c45ba..8f9bd5573bf 100644
--- a/htdocs/ecm/index.php
+++ b/htdocs/ecm/index.php
@@ -110,8 +110,6 @@ if (GETPOST("sendit") && ! empty($conf->global->MAIN_UPLOAD_DOC))
 			$resupload = dol_move_uploaded_file($_FILES['userfile']['tmp_name'], $upload_dir . "/" . dol_unescapefile($_FILES['userfile']['name']),0, 0, $_FILES['userfile']['error']);
 			if (is_numeric($resupload) && $resupload > 0)
 			{
-				//$mesg = '<div class="ok">'.$langs->trans("FileTransferComplete").'</div>';
-				//print_r($_FILES);
 				$result=$ecmdir->changeNbOfFiles('+');
 			}
 			else
@@ -134,7 +132,7 @@ if (GETPOST("sendit") && ! empty($conf->global->MAIN_UPLOAD_DOC))
 		else
 		{
 			$langs->load("errors");
-			$mesg = '<div class="error">'.$langs->trans("ErrorFailToCreateDir",$upload_dir).'</div>';
+			setEventMessage($langs->trans("ErrorFailToCreateDir",$upload_dir), 'errors');
 		}
 	}
 }
@@ -156,7 +154,7 @@ if ($action == 'add' && $user->rights->ecm->setup)
 	}
 	else
 	{
-		$mesg='<div class="error">Error '.$langs->trans($ecmdir->error).'</div>';
+		setEventMessage('Error '.$langs->trans($ecmdir->error), 'errors');
 		$action = "create";
 	}
 
@@ -198,7 +196,7 @@ if ($action == 'confirm_deletefile')
 if ($action == 'confirm_deletesection' && GETPOST('confirm') == 'yes')
 {
 	$result=$ecmdir->delete($user);
-	$mesg = '<div class="ok">'.$langs->trans("ECMSectionWasRemoved", $ecmdir->label).'</div>';
+	setEventMessage($langs->trans("ECMSectionWasRemoved", $ecmdir->label));
 
     clearstatcache();
 }
@@ -324,7 +322,6 @@ if ($action == 'refreshmanual')
     	$dirtotest=$conf->ecm->dir_output.'/'.$dirdesc['fullrelativename'];
 		if (! dol_is_dir($dirtotest))
 		{
-			$mesg.=$dirtotest." not found onto disk. We delete from database dir with id=".$dirdesc['id']."<br>\n";
 			$ecmdirtmp->id=$dirdesc['id'];
 			$ecmdirtmp->delete($user,'databaseonly');
 			//exit;
@@ -440,9 +437,6 @@ if ($action == 'delete' && empty($conf->use_javascript_ajax))
 
 }
 
-dol_htmloutput_mesg($mesg);
-
-
 if (! empty($conf->use_javascript_ajax)) $classviewhide='hidden';
 else $classviewhide='visible';
 
diff --git a/htdocs/ecm/index_auto.php b/htdocs/ecm/index_auto.php
index 9c4ab7e0e2f..3e6e6cfa05b 100644
--- a/htdocs/ecm/index_auto.php
+++ b/htdocs/ecm/index_auto.php
@@ -110,8 +110,6 @@ if (GETPOST("sendit") && ! empty($conf->global->MAIN_UPLOAD_DOC))
 			$resupload = dol_move_uploaded_file($_FILES['userfile']['tmp_name'], $upload_dir . "/" . dol_unescapefile($_FILES['userfile']['name']),0, 0, $_FILES['userfile']['error']);
 			if (is_numeric($resupload) && $resupload > 0)
 			{
-				//$mesg = '<div class="ok">'.$langs->trans("FileTransferComplete").'</div>';
-				//print_r($_FILES);
 				$result=$ecmdir->changeNbOfFiles('+');
 			}
 			else
@@ -134,7 +132,7 @@ if (GETPOST("sendit") && ! empty($conf->global->MAIN_UPLOAD_DOC))
 		else
 		{
 			$langs->load("errors");
-			$mesg = '<div class="error">'.$langs->trans("ErrorFailToCreateDir",$upload_dir).'</div>';
+			setEventMessage($langs->trans("ErrorFailToCreateDir",$upload_dir), 'errors');
 		}
 	}
 }
@@ -156,7 +154,8 @@ if ($action == 'add' && $user->rights->ecm->setup)
 	}
 	else
 	{
-		$mesg='<div class="error">Error '.$langs->trans($ecmdir->error).'</div>';
+		//TODO: Translate
+		setEventMessage('Error '.$langs->trans($ecmdir->error), 'errors');
 		$action = "create";
 	}
 
@@ -198,7 +197,7 @@ if ($action == 'confirm_deletefile')
 if ($action == 'confirm_deletesection' && GETPOST('confirm') == 'yes')
 {
 	$result=$ecmdir->delete($user);
-	$mesg = '<div class="ok">'.$langs->trans("ECMSectionWasRemoved", $ecmdir->label).'</div>';
+	setEventMessage($langs->trans("ECMSectionWasRemoved", $ecmdir->label));
 
     clearstatcache();
 }
@@ -324,7 +323,6 @@ if ($action == 'refreshmanual')
     	$dirtotest=$conf->ecm->dir_output.'/'.$dirdesc['fullrelativename'];
 		if (! dol_is_dir($dirtotest))
 		{
-			$mesg.=$dirtotest." not found onto disk. We delete from database dir with id=".$dirdesc['id']."<br>\n";
 			$ecmdirtmp->id=$dirdesc['id'];
 			$ecmdirtmp->delete($user,'databaseonly');
 			//exit;
@@ -436,9 +434,6 @@ if ($action == 'delete' && empty($conf->use_javascript_ajax))
 
 }
 
-dol_htmloutput_mesg($mesg);
-
-
 if (! empty($conf->use_javascript_ajax)) $classviewhide='hidden';
 else $classviewhide='visible';
 
diff --git a/htdocs/fourn/paiement/fiche.php b/htdocs/fourn/paiement/fiche.php
index 9a38e16f7f4..32edf72a2ad 100644
--- a/htdocs/fourn/paiement/fiche.php
+++ b/htdocs/fourn/paiement/fiche.php
@@ -36,8 +36,6 @@ $langs->load('banks');
 $langs->load('companies');
 $langs->load("suppliers");
 
-$mesg='';
-
 $id			= GETPOST('id','int');
 $action		= GETPOST('action','alpha');
 $confirm	= GETPOST('confirm','alpha');
@@ -61,7 +59,7 @@ if ($action == 'setnote' && $user->rights->fournisseur->facture->creer)
     }
     else
     {
-        $mesg='<div class="error">'.$object->error.'</div>';
+	    setEventMessage($object->error, 'errors');
         $db->rollback();
     }
 }
@@ -80,7 +78,7 @@ if ($action == 'confirm_delete' && $confirm == 'yes' && $user->rights->fournisse
 	}
 	else
 	{
-		$mesg='<div class="error">'.$object->error.'</div>';
+		setEventMessage($object->error, 'errors');
 		$db->rollback();
 	}
 }
@@ -98,7 +96,7 @@ if ($action == 'confirm_valide' && $confirm == 'yes' && $user->rights->fournisse
 	}
 	else
 	{
-		$mesg='<div class="error">'.$object->error.'</div>';
+		setEventMessage($object->error, 'errors');
 		$db->rollback();
 	}
 }
@@ -109,11 +107,11 @@ if ($action == 'setnum_paiement' && ! empty($_POST['num_paiement']))
     $res = $object->update_num($_POST['num_paiement']);
 	if ($res === 0)
 	{
-		$mesg = '<div class="ok">'.$langs->trans('PaymentNumberUpdateSucceeded').'</div>';
+		$setEventMessage($langs->trans('PaymentNumberUpdateSucceeded'));
 	}
 	else
 	{
-		$mesg = '<div class="error">'.$langs->trans('PaymentNumberUpdateFailed').'</div>';
+		setEventMessage($langs->trans('PaymentNumberUpdateFailed'), 'errors');
 	}
 }
 
@@ -124,11 +122,11 @@ if ($action == 'setdatep' && ! empty($_POST['datepday']))
 	$res = $object->update_date($datepaye);
 	if ($res === 0)
 	{
-		$mesg = '<div class="ok">'.$langs->trans('PaymentDateUpdateSucceeded').'</div>';
+		setEventMessage($langs->trans('PaymentDateUpdateSucceeded'));
 	}
 	else
 	{
-		$mesg = '<div class="error">'.$langs->trans('PaymentDateUpdateFailed').'</div>';
+		setEventMessage($langs->trans('PaymentDateUpdateFailed'), 'errors');
 	}
 }
 
@@ -229,8 +227,6 @@ if ($result > 0)
 
 	print '</table>';
 
-	dol_htmloutput_mesg($mesg);
-
 	print '<br>';
 
 	/**
diff --git a/htdocs/ftp/admin/ftpclient.php b/htdocs/ftp/admin/ftpclient.php
index 3e9d2bfd590..a7a98dcc734 100644
--- a/htdocs/ftp/admin/ftpclient.php
+++ b/htdocs/ftp/admin/ftpclient.php
@@ -91,7 +91,6 @@ if ($action == 'add' || GETPOST('modify','alpha'))
         if ($result1 && $result2 && $result3 && $result4 && $result5 && $result6)
         {
             $db->commit();
-	  		//$mesg='<div class="ok">'.$langs->trans("Success").'</div>';
             header("Location: ".$_SERVER["PHP_SELF"]);
             exit;
         }
@@ -119,7 +118,6 @@ if (GETPOST('delete','alpha'))
         if ($result1 && $result2 && $result3 && $result4 && $result5 && $result6)
         {
             $db->commit();
-	  		//$mesg='<div class="ok">'.$langs->trans("Success").'</div>';
             header("Location: ".$_SERVER["PHP_SELF"]);
             exit;
         }
diff --git a/htdocs/ftp/index.php b/htdocs/ftp/index.php
index 0c72bcc1b1a..f1a051bcf2a 100644
--- a/htdocs/ftp/index.php
+++ b/htdocs/ftp/index.php
@@ -100,8 +100,6 @@ if ( $_POST["sendit"] && ! empty($conf->global->MAIN_UPLOAD_DOC))
 		$resupload = dol_move_uploaded_file($_FILES['userfile']['tmp_name'], $upload_dir . "/" . dol_unescapefile($_FILES['userfile']['name']),0);
 		if (is_numeric($resupload) && $resupload > 0)
 		{
-			//$mesg = '<div class="ok">'.$langs->trans("FileTransferComplete").'</div>';
-			//print_r($_FILES);
 			$result=$ecmdir->changeNbOfFiles('+');
 		}
 		else {
@@ -124,7 +122,7 @@ if ( $_POST["sendit"] && ! empty($conf->global->MAIN_UPLOAD_DOC))
 	{
 		// Echec transfert (fichier depassant la limite ?)
 		$langs->load("errors");
-		$mesg = '<div class="error">'.$langs->trans("ErrorFailToCreateDir",$upload_dir).'</div>';
+		setEventMessage($langs->trans("ErrorFailToCreateDir",$upload_dir), 'errors');
 	}
 }
 
@@ -143,7 +141,8 @@ if ($_POST["action"] == 'add' && $user->rights->ftp->setup)
 	}
 	else
 	{
-		$mesg='<div class="error">Error '.$langs->trans($ecmdir->error).'</div>';
+		//TODO: Translate
+		setEventMessage('Error '.$langs->trans($ecmdir->error));
 		$_GET["action"] = "create";
 	}
 }
@@ -175,12 +174,12 @@ if ($_REQUEST['action'] == 'confirm_deletefile' && $_REQUEST['confirm'] == 'yes'
 		$result=@ftp_delete($conn_id, $newremotefileiso);
 		if ($result)
 		{
-			$mesg = '<div class="ok">'.$langs->trans("FileWasRemoved",$file).'</div>';
+			setEventMessage($langs->trans("FileWasRemoved",$file));
 		}
 		else
 		{
 			dol_syslog("ftp/index.php ftp_delete", LOG_ERR);
-			$mesg = '<div class="error">'.$langs->trans("FTPFailedToRemoveFile",$file).'</div>';
+			setEventMessage($langs->trans("FTPFailedToRemoveFile",$file), 'errors');
 		}
 
 		//ftp_close($conn_id);	Close later
@@ -225,12 +224,12 @@ if ($_POST["const"] && $_POST["delete"] && $_POST["delete"] == $langs->trans("De
 				$result=@ftp_delete($conn_id, $newremotefileiso);
 				if ($result)
 				{
-					$mesg .= '<div class="ok">'.$langs->trans("FileWasRemoved",$file).'</div>';
+					setEventMessage($langs->trans("FileWasRemoved",$file));
 				}
 				else
 				{
 					dol_syslog("ftp/index.php ftp_delete", LOG_ERR);
-					$mesg .= '<div class="error">'.$langs->trans("FTPFailedToRemoveFile",$file).'</div>';
+					setEventMessage($langs->trans("FTPFailedToRemoveFile",$file), 'errors');
 				}
 
 				//ftp_close($conn_id);	Close later
@@ -269,11 +268,11 @@ if ($_REQUEST['action'] == 'confirm_deletesection' && $_REQUEST['confirm'] == 'y
 		$result=@ftp_rmdir($conn_id, $newremotefileiso);
 		if ($result)
 		{
-			$mesg = '<div class="ok">'.$langs->trans("DirWasRemoved",$file).'</div>';
+			setEventMessage($langs->trans("DirWasRemoved",$file));
 		}
 		else
 		{
-			$mesg = '<div class="error">'.$langs->trans("FTPFailedToRemoveDir",$file).'</div>';
+			setEventMessage($langs->trans("FTPFailedToRemoveDir",$file), 'errors');
 		}
 
 		//ftp_close($conn_id);	Close later
@@ -340,7 +339,8 @@ if ($_REQUEST['action'] == 'download')
 		}
 		else
 		{
-			$mesg='<div class="error">Failed to get file '.$remotefile.'</div>';
+			//TODO: Translate
+			setEventMessage('Failed to get file '.$remotefile, 'errors');
 		}
 
 	}
@@ -444,9 +444,6 @@ else
 		print '<br>';
 		print "<br>\n";
 
-		if ($mesg) { print $mesg."<br>"; }
-
-
 		print '<form action="'.$_SERVER["PHP_SELF"].'" method="POST">';
         print '<input type="hidden" name="numero_ftp" value="'.$numero_ftp.'">';
 		print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
@@ -596,9 +593,6 @@ else
 
 		print "</table>";
 
-
-		if (! $ok && $mesg) print $mesg;
-
 		// Actions
 		/*
 		if ($user->rights->ftp->write && ! empty($section))
diff --git a/htdocs/holiday/admin/holiday.php b/htdocs/holiday/admin/holiday.php
index 2b265711fa1..aabf8362c05 100644
--- a/htdocs/holiday/admin/holiday.php
+++ b/htdocs/holiday/admin/holiday.php
@@ -142,9 +142,9 @@ if ($action == "add")
 
     if ($error)
     {
-        $message = '<div class="error">'.$langs->trans('ErrorUpdateConfCP').'</div>';
+	    setEventMessage($langs->trans('ErrorUpdateConfCP'), 'errors');
     } else {
-        $message = '<div class="ok">'.$langs->trans('UpdateConfCPOK').'</div>';
+	    setEventMessage($langs->trans('UpdateConfCPOK'));
     }
 
     // Si première mise à jour, prévenir l'utilisateur de mettre à jour le solde des congés payés
diff --git a/htdocs/holiday/define_holiday.php b/htdocs/holiday/define_holiday.php
index 0ac67b66579..bf1bf046783 100644
--- a/htdocs/holiday/define_holiday.php
+++ b/htdocs/holiday/define_holiday.php
@@ -84,10 +84,7 @@ if ($action == 'update' && isset($_POST['update_cp']))
     dol_syslog('define_holiday update lastUpdate entry', LOG_DEBUG);
     $result = $db->query($sql);
 
-    $mesg='<div class="ok">'.$langs->trans('UpdateConfCPOK').'</div>';
-
-    dol_htmloutput_mesg($mesg);
-
+	setEventMessage($langs->trans('UpdateConfCPOK'));
 }
 elseif($action == 'add_event')
 {
diff --git a/htdocs/imports/import.php b/htdocs/imports/import.php
index 41a82de36b1..0b4856fab61 100644
--- a/htdocs/imports/import.php
+++ b/htdocs/imports/import.php
@@ -138,11 +138,11 @@ if ($action == 'builddoc')
 	$result=$objimport->build_file($user, GETPOST('model','alpha'), $datatoimport, $array_match_file_to_database);
 	if ($result < 0)
 	{
-		$mesg='<div class="error">'.$objimport->error.'</div>';
+		setEventMessage($objimport->error, 'errors');
 	}
 	else
 	{
-		$mesg='<div class="ok">'.$langs->trans("FileSuccessfullyBuilt").'</div>';
+		setEventMessage($langs->trans("FileSuccessfullyBuilt"));
 	}
 }
 
@@ -175,21 +175,23 @@ if ($action == 'add_import_model')
 		$result = $objimport->create($user);
 		if ($result >= 0)
 		{
-			$mesg='<div class="ok">'.$langs->trans("ImportModelSaved",$objimport->model_name).'</div>';
+			setEventMessage($langs->trans("ImportModelSaved",$objimport->model_name));
 		}
 		else
 		{
 			$langs->load("errors");
 			if ($objimport->errno == 'DB_ERROR_RECORD_ALREADY_EXISTS')
 			{
-				$mesg='<div class="error">'.$langs->trans("ErrorImportDuplicateProfil").'</div>';
+				setEventMessage($langs->trans("ErrorImportDuplicateProfil"), 'errors');
+			}
+			else {
+				setEventMessage($objimport->error, 'errors');
 			}
-			else $mesg='<div class="error">'.$objimport->error.'</div>';
 		}
 	}
 	else
 	{
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("ImportModelName")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("ImportModelName")), 'errors');
 	}
 }
 
@@ -385,8 +387,6 @@ if ($step == 1 || ! $datatoimport)
 
     dol_fiche_end();
 
-	if ($mesg) print $mesg;
-
 }
 
 
@@ -461,7 +461,6 @@ if ($step == 2 && $datatoimport)
 
     dol_fiche_end();
 
-	if ($mesg) print $mesg;
 }
 
 
@@ -597,10 +596,7 @@ if ($step == 3 && $datatoimport)
 
 	print '</table></form>';
 
-
     dol_fiche_end();
-
-	if ($mesg) print $mesg;
 }
 
 
@@ -1010,9 +1006,6 @@ if ($step == 4 && $datatoimport)
         print '</script>'."\n";
 	}
 
-
-	if ($mesg) print $mesg;
-
 	/*
 	 * Barre d'action
 	 */
@@ -1438,8 +1431,6 @@ if ($step == 5 && $datatoimport)
         }
         print '</center>';
     }
-
-    if ($mesg) print $mesg;
 }
 
 
@@ -1679,8 +1670,6 @@ if ($step == 6 && $datatoimport)
 	print $langs->trans("FileWasImported",$importid).'<br>';
 	print $langs->trans("YouCanUseImportIdToFindRecord",$importid).'<br>';
 	print '</center>';
-
-	if ($mesg) print $mesg;
 }
 
 
diff --git a/htdocs/paybox/admin/paybox.php b/htdocs/paybox/admin/paybox.php
index 7eefafb9c8c..30e02591190 100644
--- a/htdocs/paybox/admin/paybox.php
+++ b/htdocs/paybox/admin/paybox.php
@@ -67,7 +67,7 @@ if ($action == 'setvalue' && $user->admin)
     if (! $error)
   	{
   		$db->commit();
-  		$mesg='<div class="ok">'.$langs->trans("SetupSaved").'</div>';
+	    setEventMessage($langs->trans("SetupSaved"));
   	}
   	else
   	{
@@ -227,8 +227,6 @@ if (! empty($conf->adherent->enabled))
 print "<br>";
 print info_admin($langs->trans("YouCanAddTagOnUrl"));
 
-dol_htmloutput_mesg($mesg);
-
 $db->close();
 dol_fiche_end();
 llxFooter();
diff --git a/htdocs/product/fournisseurs.php b/htdocs/product/fournisseurs.php
index 527615cc7c4..037bb2b1f8b 100644
--- a/htdocs/product/fournisseurs.php
+++ b/htdocs/product/fournisseurs.php
@@ -43,7 +43,7 @@ $rowid=GETPOST('rowid','int');
 $action=GETPOST('action', 'alpha');
 $socid=GETPOST('socid', 'int');
 $backtopage=GETPOST('backtopage','alpha');
-$error=0; $mesg = '';
+$error=0;
 
 // If socid provided by ajax company selector
 if (! empty($_REQUEST['search_fourn_id']))
@@ -92,7 +92,7 @@ if ($action == 'remove_pf')
 		{
 			$result=$product->remove_product_fournisseur_price($rowid);
 			$action = '';
-			$mesg = '<div class="ok">'.$langs->trans("PriceRemoved").'.</div>';
+			setEventMessage($langs->trans("PriceRemoved"));
 		}
 	}
 }
@@ -112,27 +112,27 @@ if ($action == 'updateprice' && GETPOST('cancel') <> $langs->trans("Cancel"))
     if ($tva_tx == '')
     {
 		$error++;
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("VATRateForSupplierProduct")).'</div>';
+	    setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("VATRateForSupplierProduct")), 'errors');
     }
 	if (empty($quantity))
 	{
 		$error++;
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("Qty")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("Qty")), 'errors');
 	}
 	if (empty($ref_fourn))
 	{
 		$error++;
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("RefSupplier")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("RefSupplier")), 'errors');
 	}
 	if ($id_fourn <= 0)
 	{
 		$error++;
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("Supplier")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("Supplier")), 'errors');
 	}
 	if ($_POST["price"] < 0 || $_POST["price"] == '')
 	{
 		$error++;
-		$mesg='<div class="error">'.$langs->trans("ErrorFieldRequired",$langs->transnoentities("Price")).'</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired",$langs->transnoentities("Price")), 'errors');
 	}
 
 	$product = new ProductFournisseur($db);
@@ -140,7 +140,7 @@ if ($action == 'updateprice' && GETPOST('cancel') <> $langs->trans("Cancel"))
 	if ($result <= 0)
 	{
 	    $error++;
-	    $mesg=$product->error;
+		setEventMessage($product->error, 'errors');
 	}
 
 	if (! $error)
@@ -157,12 +157,12 @@ if ($action == 'updateprice' && GETPOST('cancel') <> $langs->trans("Cancel"))
 				$product->fetch($product->product_id_already_linked);
 				$productLink = $product->getNomUrl(1,'supplier');
 
-				$mesg='<div class="error">'.$langs->trans("ReferenceSupplierIsAlreadyAssociatedWithAProduct",$productLink).'</div>';
+				setEventMessage($langs->trans("ReferenceSupplierIsAlreadyAssociatedWithAProduct",$productLink), 'errors');
 			}
 			else if ($ret < 0)
 			{
 				$error++;
-				$mesg='<div class="error">'.$product->error.'</div>';
+				setEventMessage($product->error, 'errors');
 			}
 		}
 
@@ -177,7 +177,7 @@ if ($action == 'updateprice' && GETPOST('cancel') <> $langs->trans("Cancel"))
 			if ($ret < 0)
 			{
 				$error++;
-				$mesg='<div class="error">'.$product->error.'</div>';
+				setEventMessage($product->error, 'errors');
 			}
 		}
 
@@ -264,10 +264,6 @@ if ($id || $ref)
 
 			print "</div>\n";
 
-
-			dol_htmloutput_mesg($mesg);
-
-
 			// Form to add or update a price
 			if (($action == 'add_price' || $action == 'updateprice' ) && ($user->rights->produit->creer || $user->rights->service->creer))
 			{
diff --git a/htdocs/product/price.php b/htdocs/product/price.php
index f5db524ed27..9c0597ec0f6 100644
--- a/htdocs/product/price.php
+++ b/htdocs/product/price.php
@@ -94,15 +94,16 @@ if ($action == 'update_price' && ! $_POST ["cancel"] && ($user->rights->produit-
 	
 	if ($object->updatePrice($newprice, $newpricebase, $user, $newvat, $newprice_min, $level, $newnpr, $newpsq) > 0) {
 		$action = '';
-		$mesg = '<div class="ok">' . $langs->trans("RecordSaved") . '</div>';
+		setEventMessage($langs->trans("RecordSaved"));
 	} else {
 		$action = 'edit_price';
-		$mesg = '<div class="error">' . $object->error . '</div>';
+		setEventMessage($object->error, 'errors');
 	}
 } else if ($action == 'delete' && $user->rights->produit->supprimer) {
 	$result = $object->log_price_delete($user, $_GET ["lineid"]);
-	if ($result < 0)
-		$mesg = '<div class="error">' . $object->error . '</div>';
+	if ($result < 0) {
+		setEventMessage($object->error, 'errors');
+	}
 }
 
 /**
@@ -136,11 +137,11 @@ if ($action == 'update_price_by_qty') { // Ajout / Mise à jour d'un prix par qu
 
 	if (empty($quantity)) {
 		$error ++;
-		$mesg = '<div class="error">' . $langs->trans("ErrorFieldRequired", $langs->transnoentities("Qty")) . '</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired", $langs->transnoentities("Qty")), 'errors');
 	}
 	if (empty($newprice)) {
 		$error ++;
-		$mesg = '<div class="error">' . $langs->trans("ErrorFieldRequired", $langs->transnoentities("Price")) . '</div>';
+		setEventMessage($langs->trans("ErrorFieldRequired", $langs->transnoentities("Price")), 'errors');
 	}
 	if (! $error) {
 		// Calcul du prix HT et du prix unitaire
@@ -547,10 +548,6 @@ print "</table>\n";
 
 print "</div>\n";
 
-if (! empty($mesg)) {
-	dol_htmloutput_mesg($mesg);
-}
-
 /* ************************************************************************** */
 /*                                                                            */
 /* Barre d'action                                                             */
diff --git a/htdocs/product/stock/fiche.php b/htdocs/product/stock/fiche.php
index 874b082ceae..86e930d8cf1 100644
--- a/htdocs/product/stock/fiche.php
+++ b/htdocs/product/stock/fiche.php
@@ -43,8 +43,6 @@ $id = GETPOST("id",'int');
 if (! $sortfield) $sortfield="p.ref";
 if (! $sortorder) $sortorder="DESC";
 
-$mesg = '';
-
 // Security check
 $result=restrictedArea($user,'stock');
 
@@ -80,10 +78,10 @@ if ($action == 'add' && $user->rights->stock->creer)
 		}
 
 		$action = 'create';
-		$mesg='<div class="error">'.$object->error.'</div>';
+		setEventMessage($object->error, 'errors');
 	}
 	else {
-		$mesg='<div class="error">'.$langs->trans("ErrorWarehouseRefRequired").'</div>';
+		setEventMessage($langs->trans("ErrorWarehouseRefRequired"), 'errors');
 		$action="create";   // Force retour sur page creation
 	}
 }
@@ -101,7 +99,7 @@ if ($action == 'confirm_delete' && $_REQUEST["confirm"] == 'yes' && $user->right
 	}
 	else
 	{
-		$mesg='<div class="error">'.$object->error.'</div>';
+		setEventMessage($object->error, 'errors');
 		$action='';
 	}
 }
@@ -124,18 +122,17 @@ if ($action == 'update' && $_POST["cancel"] <> $langs->trans("Cancel"))
 		if ( $object->update($id, $user) > 0)
 		{
 			$action = '';
-			//$mesg = '<div class="ok">Fiche mise a jour</div>';
 		}
 		else
 		{
 			$action = 'edit';
-			$mesg = '<div class="error">'.$object->error.'</div>';
+			setEventMessage($object->error, 'errors');
 		}
 	}
 	else
 	{
 		$action = 'edit';
-		$mesg = '<div class="error">'.$object->error.'</div>';
+		setEventMessage($object->error, 'errors');
 	}
 }
 
@@ -167,8 +164,6 @@ if ($action == 'create')
 	print '<input type="hidden" name="action" value="add">';
 	print '<input type="hidden" name="type" value="'.$type.'">'."\n";
 
-	dol_htmloutput_mesg($mesg);
-
 	print '<table class="border" width="100%">';
 
 	// Ref
@@ -219,8 +214,6 @@ else
     $id=GETPOST("id",'int');
 	if ($id)
 	{
-		dol_htmloutput_mesg($mesg);
-
 		$object = new Entrepot($db);
 		$result = $object->fetch($id);
 		if ($result < 0)
@@ -496,7 +489,7 @@ else
 		 */
 		if (($action == 'edit' || $action == 're-edit') && 1)
 		{
-			print_fiche_titre($langs->trans("WarehouseEdit"), $mesg);
+			$langs->trans("WarehouseEdit");
 
 			print '<form action="fiche.php" method="POST">';
 			print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
diff --git a/htdocs/user/fiche.php b/htdocs/user/fiche.php
index 3a5827904f2..5251f6bc750 100644
--- a/htdocs/user/fiche.php
+++ b/htdocs/user/fiche.php
@@ -45,7 +45,6 @@ $action		= GETPOST('action','alpha');
 $confirm	= GETPOST('confirm','alpha');
 $subaction	= GETPOST('subaction','alpha');
 $group		= GETPOST("group","int",3);
-$message='';
 
 // Define value to know what current user can do on users
 $canadduser=(! empty($user->admin) || $user->rights->user->user->creer);
@@ -110,6 +109,8 @@ if ($action == 'confirm_disable' && $confirm == "yes" && $candisableuser)
 }
 if ($action == 'confirm_enable' && $confirm == "yes" && $candisableuser)
 {
+	$error = 0;
+
     if ($id <> $user->id)
     {
         $object->fetch($id);
@@ -119,11 +120,12 @@ if ($action == 'confirm_enable' && $confirm == "yes" && $candisableuser)
             $nb = $object->getNbOfUsers("active");
             if ($nb >= $conf->file->main_limit_users)
             {
-                $message='<div class="error">'.$langs->trans("YourQuotaOfUsersIsReached").'</div>';
+	            $error++;
+                setEventMessage($langs->trans("YourQuotaOfUsersIsReached"), 'errors');
             }
         }
 
-        if (! $message)
+        if (! $error)
         {
             $object->setstatus(1);
             header("Location: ".$_SERVER['PHP_SELF'].'?id='.$id);
@@ -142,7 +144,7 @@ if ($action == 'confirm_delete' && $confirm == "yes" && $candisableuser)
         if ($result < 0)
         {
             $langs->load("errors");
-            $message='<div class="error">'.$langs->trans("ErrorUserCannotBeDelete").'</div>';
+            setEventMessage($langs->trans("ErrorUserCannotBeDelete"), 'errors');
         }
         else
         {
@@ -155,14 +157,18 @@ if ($action == 'confirm_delete' && $confirm == "yes" && $candisableuser)
 // Action ajout user
 if ($action == 'add' && $canadduser)
 {
+	$error = 0;
+
     if (! $_POST["lastname"])
     {
-        $message='<div class="error">'.$langs->trans("NameNotDefined").'</div>';
+	    $error++;
+        setEventMessage($langs->trans("NameNotDefined"), 'errors');
         $action="create";       // Go back to create page
     }
     if (! $_POST["login"])
     {
-        $message='<div class="error">'.$langs->trans("LoginNotDefined").'</div>';
+	    $error++;
+	    setEventMessage($langs->trans("LoginNotDefined"), 'errors');
         $action="create";       // Go back to create page
     }
 
@@ -171,13 +177,13 @@ if ($action == 'add' && $canadduser)
         $nb = $object->getNbOfUsers("active");
         if ($nb >= $conf->file->main_limit_users)
         {
-            $message='<div class="error">'.$langs->trans("YourQuotaOfUsersIsReached").'</div>';
+	        $error++;
+	        setEventMessage($langs->trans("YourQuotaOfUsersIsReached"), 'errors');
             $action="create";       // Go back to create page
         }
     }
 
-    if (! $message)
-    {
+    if (!$error) {
         $object->lastname		= GETPOST("lastname",'alpha');
         $object->firstname	    = GETPOST("firstname",'alpha');
         $object->login		    = GETPOST("login",'alpha');
@@ -266,7 +272,7 @@ if (($action == 'addgroup' || $action == 'removegroup') && $caneditfield)
         }
         else
         {
-            $message.=$object->error;
+            setEventMessage($object->error, 'errors');
         }
     }
 }
@@ -281,13 +287,13 @@ if ($action == 'update' && ! $_POST["cancel"])
 
     	if (! $_POST["lastname"])
         {
-            $message='<div class="error">'.$langs->trans("NameNotDefined").'</div>';
+	        setEventMessage($langs->trans("NameNotDefined"), 'errors');
             $action="edit";       // Go back to create page
             $error++;
         }
         if (! $_POST["login"])
         {
-            $message='<div class="error">'.$langs->trans("LoginNotDefined").'</div>';
+	        setEventMessage($langs->trans("LoginNotDefined"), 'errors');
             $action="edit";       // Go back to create page
             $error++;
         }
@@ -304,7 +310,7 @@ if ($action == 'update' && ! $_POST["cancel"])
 				$result=$tmpuser->fetch(0, GETPOST("login"));
 				if ($result > 0)
 				{
-					$message='<div class="error">'.$langs->trans("ErrorLoginAlreadyExists").'</div>';
+					setEventMessage($langs->trans("ErrorLoginAlreadyExists"), 'errors');
 					$action="edit";       // Go back to create page
 					$error++;
 				}
@@ -367,11 +373,11 @@ if ($action == 'update' && ! $_POST["cancel"])
                 if ($db->errno() == 'DB_ERROR_RECORD_ALREADY_EXISTS')
                 {
                     $langs->load("errors");
-                    $message.='<div class="error">'.$langs->trans("ErrorLoginAlreadyExists",$object->login).'</div>';
+	                setEventMessage($langs->trans("ErrorLoginAlreadyExists",$object->login), 'errors');
                 }
                 else
               {
-                    $message.='<div class="error">'.$object->error.'</div>';
+	              setEventMessage($object->error, 'errors');
                 }
             }
 
@@ -395,12 +401,12 @@ if ($action == 'update' && ! $_POST["cancel"])
             		$sql.= " SET fk_socpeople=NULL, fk_societe=NULL";
             		$sql.= " WHERE rowid=".$object->id;
             	}
+	            dol_syslog("fiche::update", LOG_DEBUG);
             	$resql=$db->query($sql);
-            	dol_syslog("fiche::update", LOG_DEBUG);
             	if (! $resql)
             	{
             		$error++;
-            		$message.='<div class="error">'.$db->lasterror().'</div>';
+            		setEventMessage($db->lasterror(), 'errors');
             	}
             }
 
@@ -427,7 +433,7 @@ if ($action == 'update' && ! $_POST["cancel"])
 
                         if (! $result > 0)
                         {
-                            $message .= '<div class="error">'.$langs->trans("ErrorFailedToSaveFile").'</div>';
+	                        setEventMessage($langs->trans("ErrorFailedToSaveFile"), 'errors');
                         }
                         else
                         {
@@ -445,7 +451,7 @@ if ($action == 'update' && ! $_POST["cancel"])
 
             if (! $error && ! count($object->errors))
             {
-                $message.='<div class="ok">'.$langs->trans("UserModified").'</div>';
+	            setEventMessage($langs->trans("UserModified"));
                 $db->commit();
 
                 $login=$_SESSION["dol_login"];
@@ -469,7 +475,7 @@ if ($action == 'update' && ! $_POST["cancel"])
         $ret=$object->setPassword($user,$_POST["password"]);
         if ($ret < 0)
         {
-            $message.='<div class="error">'.$object->error.'</div>';
+	        setEventMessage($object->error, 'errors');
         }
     }
 }
@@ -484,7 +490,7 @@ if ((($action == 'confirm_password' && $confirm == 'yes')
     if ($newpassword < 0)
     {
         // Echec
-        $message = '<div class="error">'.$langs->trans("ErrorFailedToSetNewPassword").'</div>';
+        setEventMessage($langs->trans("ErrorFailedToSetNewPassword"), 'errors');
     }
     else
     {
@@ -493,18 +499,16 @@ if ((($action == 'confirm_password' && $confirm == 'yes')
         {
             if ($object->send_password($user,$newpassword) > 0)
             {
-                $message = '<div class="ok">'.$langs->trans("PasswordChangedAndSentTo",$object->email).'</div>';
-                //$message.=$newpassword;
+                setEventMessage($langs->trans("PasswordChangedAndSentTo",$object->email));
             }
             else
             {
-                $message = '<div class="ok">'.$langs->trans("PasswordChangedTo",$newpassword).'</div>';
-                $message.= '<div class="error">'.$object->error.'</div>';
+	            setEventMessage($object->error, 'errors');
             }
         }
         else
         {
-            $message = '<div class="ok">'.$langs->trans("PasswordChangedTo",$newpassword).'</div>';
+	        setEventMessage($langs->trans("PasswordChangedTo",$newpassword), 'errors');
         }
     }
 }
@@ -562,7 +566,7 @@ if ($action == 'adduserldap')
     }
     else
     {
-        $message='<div class="error">'.$ldap->error.'</div>';
+        setEventMessage($ldap->error, 'errors');
     }
 }
 
@@ -590,8 +594,6 @@ if (($action == 'create') || ($action == 'adduserldap'))
     print "<br>";
     print "<br>";
 
-    dol_htmloutput_mesg($message);
-
     if (! empty($conf->ldap->enabled) && (isset($conf->global->LDAP_SYNCHRO_ACTIVE) && $conf->global->LDAP_SYNCHRO_ACTIVE == 'ldap2dolibarr'))
     {
         /*
@@ -648,12 +650,12 @@ if (($action == 'create') || ($action == 'adduserldap'))
             }
             else
             {
-                $message='<div class="error">'.$ldap->error.'</div>';
+                setEventMessage($ldap->error, 'errors');
             }
         }
         else
         {
-            $message='<div class="error">'.$ldap->error.'</div>';
+	        setEventMessage($ldap->error, 'errors');
         }
 
         // Si la liste des users est rempli, on affiche la liste deroulante
@@ -977,7 +979,7 @@ else
                 $entries = $ldap->fetch($object->login,$userSearchFilter);
                 if (! $entries)
                 {
-                    $message .= $ldap->error;
+                    setEventMessage($ldap->error, 'errors');
                 }
 
                 $passDoNotExpire = 0;
@@ -1056,8 +1058,6 @@ else
             print $form->formconfirm("fiche.php?id=$object->id",$langs->trans("DeleteAUser"),$langs->trans("ConfirmDeleteUser",$object->login),"confirm_delete", '', 0, 1);
         }
 
-        dol_htmloutput_mesg($message);
-
         /*
          * Fiche en mode visu
          */
diff --git a/htdocs/user/group/fiche.php b/htdocs/user/group/fiche.php
index 625195bfa68..f97ef35ae6e 100644
--- a/htdocs/user/group/fiche.php
+++ b/htdocs/user/group/fiche.php
@@ -48,7 +48,6 @@ $id=GETPOST('id', 'int');
 $action=GETPOST('action', 'alpha');
 $confirm=GETPOST('confirm', 'alpha');
 $userid=GETPOST('user', 'int');
-$message='';
 
 // Security check
 $result = restrictedArea($user, 'user', $id, 'usergroup&usergroup', 'user');
@@ -76,7 +75,7 @@ if ($action == 'confirm_delete' && $confirm == "yes")
     else
     {
     	$langs->load("errors");
-        $message = '<div class="error">'.$langs->trans('ErrorForbidden').'</div>';
+        setEventMessage($langs->trans('ErrorForbidden'), 'errors');
     }
 }
 
@@ -87,14 +86,10 @@ if ($action == 'add')
 {
     if ($caneditperms)
     {
-        if (! $_POST["nom"])
-        {
-            $message='<div class="error">'.$langs->trans("NameNotDefined").'</div>';
+        if (! $_POST["nom"]) {
+            setEventMessage($langs->trans("NameNotDefined"), 'errors');
             $action="create";       // Go back to create page
-        }
-
-		if (! $message)
-		{
+        } else {
 			$object->nom	= trim($_POST["nom"]);
 			$object->note	= trim($_POST["note"]);
 
@@ -117,7 +112,7 @@ if ($action == 'add')
                 $db->rollback();
 
                 $langs->load("errors");
-                $message='<div class="error">'.$langs->trans("ErrorGroupAlreadyExists",$object->nom).'</div>';
+                setEventMessage($langs->trans("ErrorGroupAlreadyExists",$object->nom), 'errors');
                 $action="create";       // Go back to create page
             }
         }
@@ -125,7 +120,7 @@ if ($action == 'add')
     else
     {
     	$langs->load("errors");
-        $message = '<div class="error">'.$langs->trans('ErrorForbidden').'</div>';
+	    setEventMessage($langs->trans('ErrorForbidden'), 'errors');
     }
 }
 
@@ -151,14 +146,14 @@ if ($action == 'adduser' || $action =='removeuser')
             }
             else
             {
-                $message.=$edituser->error;
+                setEventMessage($edituser->error, 'errors');
             }
         }
     }
     else
     {
     	$langs->load("errors");
-        $message = '<div class="error">'.$langs->trans('ErrorForbidden').'</div>';
+	    setEventMessage($langs->trans('ErrorForbidden'), 'errors');
     }
 }
 
@@ -183,19 +178,19 @@ if ($action == 'update')
 
         if ($ret >= 0 && ! count($object->errors))
         {
-            $message.='<div class="ok">'.$langs->trans("GroupModified").'</div>';
+	        setEventMessage($langs->trans("GroupModified"));
             $db->commit();
         }
         else
         {
-            $message.='<div class="error">'.$object->error.'</div>';
+            setEventMessage($object->error);
             $db->rollback();
         }
     }
     else
     {
     	$langs->load("errors");
-        $message = '<div class="error">'.$langs->trans('ErrorForbidden').'</div>';
+        setEventMessage($langs->trans('ErrorForbidden'));
     }
 }
 
@@ -214,8 +209,6 @@ if ($action == 'create')
 {
     print_fiche_titre($langs->trans("NewGroup"));
 
-    if ($message) { print $message."<br>"; }
-
     print dol_set_focus('#nom');
 
     print '<form action="'.$_SERVER["PHP_SELF"].'" method="post">';
@@ -340,9 +333,6 @@ else
 			print "</div>\n";
 			print "<br>\n";
 
-
-            dol_htmloutput_mesg($message);
-
             /*
              * Liste des utilisateurs dans le groupe
              */
diff --git a/htdocs/user/group/ldap.php b/htdocs/user/group/ldap.php
index cde5e764af5..c3e147620c2 100644
--- a/htdocs/user/group/ldap.php
+++ b/htdocs/user/group/ldap.php
@@ -56,8 +56,6 @@ $fgroup->getrights();
 
 if ($action == 'dolibarr2ldap')
 {
-	$message="";
-
 	$db->begin();
 
 	$ldap=new Ldap();
@@ -71,12 +69,12 @@ if ($action == 'dolibarr2ldap')
 
 	if ($result >= 0)
 	{
-		$message.='<div class="ok">'.$langs->trans("GroupSynchronized").'</div>';
+		setEventMessage($langs->trans("GroupSynchronized"));
 		$db->commit();
 	}
 	else
 	{
-		$message.='<div class="error">'.$ldap->error.'</div>';
+		setEventMessage($ldap->error);
 		$db->rollback();
 	}
 }
@@ -135,10 +133,6 @@ print "</table>\n";
 
 print '</div>';
 
-
-dol_htmloutput_mesg($message);
-
-
 /*
  * Barre d'actions
  */
diff --git a/htdocs/user/ldap.php b/htdocs/user/ldap.php
index ebf776e64aa..87a0dec31e2 100644
--- a/htdocs/user/ldap.php
+++ b/htdocs/user/ldap.php
@@ -52,8 +52,6 @@ $fuser->getrights();
 
 if ($_GET["action"] == 'dolibarr2ldap')
 {
-    $message="";
-
     $db->begin();
 
     $ldap=new Ldap();
@@ -67,12 +65,12 @@ if ($_GET["action"] == 'dolibarr2ldap')
 
     if ($result >= 0)
     {
-        $message.='<div class="ok">'.$langs->trans("UserSynchronized").'</div>';
+        setEventMessage($langs->trans("UserSynchronized"));
         $db->commit();
     }
     else
     {
-        $message.='<div class="error">'.$ldap->error.'</div>';
+        setEventMessage($ldap->error, 'errors');
         $db->rollback();
     }
 }
@@ -152,10 +150,6 @@ print '</table>';
 
 print '</div>';
 
-
-dol_htmloutput_mesg($message);
-
-
 /*
  * Barre d'actions
  */