I think this has been discussed earlier but can't recall
it now.
regards,
..Pekka
______________________________________________________
Pekka Ala-Siuru
Senior Analyst, Embedded Knowledge-Based Systems
VTT Electronics, P.O.Box 1100, FIN-90571, Oulu,Finland
Tel. +358 81 551 2461, Telefax +358 81 551 2320
http://www.ele.vtt.fi/