diff --git a/htdocs/comm/propal.php b/htdocs/comm/propal.php
index 10c91b8dd44..0b6b6f9cf7c 100644
--- a/htdocs/comm/propal.php
+++ b/htdocs/comm/propal.php
@@ -1167,7 +1167,7 @@ if ($_GET['propalid'] > 0)
 						if ($conf->use_ajax && $conf->global->MAIN_CONFIRM_AJAX)
 						{
 							$url = $_SERVER["PHP_SELF"].'?propalid='.$propal->id.'&ligne='.$objp->rowid.'&action=confirm_deleteline&confirm=yes';
-							print '<a href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmDeleteProductLine').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\')">';
+							print '<a href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmDeleteProductLine').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\',\'deleteline'.$i.'\')">';
 							print img_delete();
 						}
 						else
@@ -1461,7 +1461,7 @@ if ($_GET['propalid'] > 0)
 			if ($conf->use_ajax && $conf->global->MAIN_CONFIRM_AJAX)
 			{
 				$url = $_SERVER["PHP_SELF"].'?propalid='.$propal->id.'&action=confirm_validate&confirm=yes';
-				print 'href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmValidateProp').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\')"';
+				print 'href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmValidateProp').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\',\'validate\')"';
 			}
 			else
 			{
@@ -1526,7 +1526,7 @@ if ($_GET['propalid'] > 0)
 			if ($conf->use_ajax && $conf->global->MAIN_CONFIRM_AJAX)
 			{
 				$url = $_SERVER["PHP_SELF"].'?propalid='.$propal->id.'&action=confirm_delete&confirm=yes';
-				print 'href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmDeleteProp').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\')"';
+				print 'href="#" onClick="dialogConfirm(\''.$url.'\',\''.$langs->trans('ConfirmDeleteProp').'\',\''.$langs->trans("Yes").'\',\''.$langs->trans("No").'\',\'delete\')"';
 			}
 			else
 			{
diff --git a/htdocs/lib/lib_head.js b/htdocs/lib/lib_head.js
index be334f71202..5e1fb876693 100644
--- a/htdocs/lib/lib_head.js
+++ b/htdocs/lib/lib_head.js
@@ -652,16 +652,17 @@ function cleanSerialize(expr) {
 
 /*=================================================================
 	Purpose:  Affiche un message de confirmation
-	Input:    linkurl,message,ok,cancel
+	Input:    linkurl,message,ok,cancel,objectID
 	Author:   Regis Houssin
 	Licence:  GPL
 ==================================================================*/
-function dialogConfirm(linkurl,message,ok,cancel) {
+function dialogConfirm(linkurl,message,ok,cancel,objectID) {
 	Dialog.confirm(message, {
 		width:300,
 		okLabel: ok,
 		cancelLabel: cancel,
 		buttonClass: "button",
+		id: objectID,
 		cancel:function(win){},
 		ok:function(win) {window.location.href=linkurl; return true;} 
 	});