Event.observe(window, 'load', prepare_related_sites, false);
function prepare_related_sites() {
  var related_sites = $('related_stanley_sites');
  if( !related_sites )
    return;
  var sites = $(related_sites.sites);
  related_sites.action = sites.value;
  sites.observe('change', function(e) {
    related_sites.action = sites.value;
  });
}