diff --git a/htdocs/html.form.class.php b/htdocs/html.form.class.php
index 3b932c31301..8887d81c268 100644
--- a/htdocs/html.form.class.php
+++ b/htdocs/html.form.class.php
@@ -703,7 +703,6 @@ class Form
 		global $langs,$conf,$user;
 		if($conf->use_ajax)
 		{
-			print '<script type="text/javascript" src="'.DOL_URL_ROOT.'/lib/prototype.js"></script>';
 			print $langs->trans("Ref").':<input type="text" size="8" name="ajkeyref'.$htmlname.'" id="ajkeyref'.$htmlname.'">&nbsp; &nbsp;';
 			print $langs->trans("Label").':<input type="text" size="16" name="ajkeylabel'.$htmlname.'" id="ajkeylabel'.$htmlname.'">';
 			print '<input type="hidden" name="'.$htmlname.'" id="'.$htmlname.'" value="">';
@@ -711,7 +710,6 @@ class Form
 			print 'var url = \''.DOL_URL_ROOT.'/ajaxresponse.php\';';
 			print 'new Form.Element.Observer($("ajkeyref'.$htmlname.'"), 1, function(){var myAjax = new Ajax.Updater( {success: \'ajdynfield'.$htmlname.'\'}, url, {method: \'get\', parameters: "keyref="+$("ajkeyref'.$htmlname.'").value+"&htmlname='.$htmlname.'&price_level='.$price_level.'"});});';
 			print 'new Form.Element.Observer($("ajkeylabel'.$htmlname.'"), 1, function(){var myAjax = new Ajax.Updater( {success: \'ajdynfield'.$htmlname.'\'}, url, {method: \'get\', parameters: "keylabel="+$("ajkeylabel'.$htmlname.'").value+"&htmlname='.$htmlname.'&price_level='.$price_level.'"});});';
-			print 'function publish_selvalue(obj){$("'.$htmlname.'").value = obj.options[obj.selectedIndex].value;}';
 			print '</script>';
 			print '<div class="notopnoleftnoright" id="ajdynfield'.$htmlname.'"></div>';
 		}