diff --git a/htdocs/html.form.class.php b/htdocs/html.form.class.php
index 9dbe2885fe1..5b36fe016d3 100644
--- a/htdocs/html.form.class.php
+++ b/htdocs/html.form.class.php
@@ -623,11 +623,11 @@ class Form
 		<?=$langs->trans("Ref")?><input type="text" size="5" name="ajkeyref" id="ajkeyref">&nbsp;
 		<?=$langs->trans("Label")?><input type="text" size="5" name="ajkeylabel" id="ajkeylabel">
 		</form>
-		<div id="placeholder"></div>
+		<div id='<?=$htmlname ?>'></div>
 		<script type="text/javascript">
 		var url = '<?=DOL_URL_ROOT?>/ajaxresponse.php';
 		
-		 new Form.Element.Observer($("ajkeyref"), 1, function(){var myAjax = new Ajax.Updater( {success: 'placeholder'}, url, {method: 'get', parameters: "keyref="+$("ajkeyref").value});});
+		 new Form.Element.Observer($("ajkeyref"), 1, function(){var myAjax = new Ajax.Updater( {success: '<?=$htmlname ?>'}, url, {method: 'get', parameters: "keyref="+$("ajkeyref").value});});
 		
 		</script>
 		<script type="text/javascript">