Mazda 6 2.0 TS petrol cambelt or chain?

[theymademedoit]

Hi,
Just bought the Mazda and its got 62k on it.
Its a 2002/2003 model but unsure when cambelt needed changing, however someone said it may be a chain?
Any suggestions?
The car came with little docs but seems tidy and very straight (checked over by a mechanic mate).
Any pointers to a site with info on servicing intervals would be great too.
Cheers,
Al