Zippers

I am knitting a men’s cardigan which will have a separating zipper for closure.
I don’t know how to put in the zipper. Do I sew it with a sewing machine or by hand? If by hand, what kind of stitch do I use?
I really need help with this.
Thanks.

Here are two sites to help you

http://www.chicknits.com/ttizipper.shtml

Thank you very, very much. :muah: