brake pads...

I'm thinking of changing my brake pads for my 06 zongshen gs250. Never done this before, know how to do it but have no idea where to get the pads ... my guess is that there's diferent model for diferent bikes ...
checked on www.d2moto.com on the fotos are all the same but it specifies for wich bike they are, unfortunatly they only support honda, kawasaki, suzuki, yamaha etc...
HEEELLPPP :P