$unmaskjs = '<script type="text/javascript">
//<![CDATA[
document.write(\'<span class="unmask"><input id="'.$id.'unmask" value="1" type="checkbox" onclick="unmaskPassword(\\\''.$id.'\\\')"/><label for="'.$id.'unmask">'.addslashes_js($unmask).'<\/label><\/span>\');
+document.getElementById("'.$this->get_id().'").setAttribute("autocomplete", "off");
//]]>
</script>';
return format_admin_setting($this, $this->visiblename,