OK, thanks for the response. I probably wasn't real clear on my question, I was afraid of that.
I guess what I meant was I would like to make an interface through php to dynamically set up the cron jobs through a php front end. Right now the guy that runs my servers isn't very good and doesn't know much about cronjobs. I believe he has to set these up through a command line. It would make things much easier if I can create the cron jobs straight from a web interface (Not sure if this is difficult)
Anyway, this might be way beyond my current abilities but I would like to start learning how to accomplish this type of stuff.
By the way, the link you provided was helpful in other ways. Thanks again for your time.