Bayonet Fitting Lens Hoods

Can anyone tell me if lens hoods from different manufacturers have a standard bayonet fitting? I am trying to find a hood for my 28 -105 (62mm filter thread) at a reasonable price and would prefer a bayonet to thread fit.

There is a Nikon hood http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=260144331970&a... which looks like it might do the job.

The dedicated Pentax hoods are intended for just the one lens and are perfectly matched to that. I wouldn't expect any othe mmenufactrer's hood to fit.

The exception to this is Rollei and other TLRs (twin lens reflexes) where there are standard sizes described as Bayonet I, Bayonet II, Bayonet III, etc.

Thanks for the reply John, I thought as much.