> noCache = '?a=' + $time() + $random(0, 100); P.S. Not feeling cache invalidation. If I am reloading a giant DIV every second, best believe I want to get a 304 whenever possible. There will be some old browsers (yeah, IE6) where you may need brute force to force a refresh from the server, but otherwise you should rely on wise use of HTTP caching headers (client + server), not invalidate on every call.
-- S.
