Convert time to millisec?

I have a statement looking like this...:

select sum(Til - Fra) as total from Log_stop where OrdreID = 3434

but I would like the result to be in milliseconds, is this possible? If so, how?
(the fields Til and Fra is of type Time)

Regards,

BTJ

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Bjørn T Johansen

btj(at)havleik(dot)no
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Someone wrote:
"I understand that if you play a Windows CD backwards you hear strange Satanic messages"
To which someone replied:
"It's even worse than that; play it forwards and it installs Windows"
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