function FormFieldValidated (s, e)
{
    var parent ;
    if (_aspxIsExistsElement (s.GetExternalTable ()))
         parent = $(s.GetExternalTable ()).parent () ;
    else parent = $('#' + s.name).parent () ;

    if (s.GetIsValid ())
         parent.removeClass ('error') ;
    else parent.addClass    ('error') ;
}