couch.js
function uuids_for(couch) {
  UUIDS[couch.url] = UUIDS[couch.url] || new UUIDGetter(couch);
  return UUIDS[couch.url];
}
function uuids_for(couch) {
  UUIDS[couch.url] = UUIDS[couch.url] || new UUIDGetter(couch);
  return UUIDS[couch.url];
}
Utilities