Yo.. $cjar is being expected to be an object instance. Do you know about Object Oriented Programming? At least a rough idea? You gotta read about this please. This script/program whatever.. is using objects, and it seems that at least this one ($cjar) is not being made, summoned, or something.

This is a tiny chunk of meaningless code. I think maybe having more of it up here would help. This could be a mess- If this is a large app, you should seek possibly using the author as a resource. Can't you ask for that from your employer?

also, it looks to me as if this may not be using strict. in my humble opinion, this could be really sh1++y code. Just how big is this program? And yeah, code can be really crappy, uncommented, totally devoid of any karma for helping inheritors. Hope that gives incentive to do nice code for whomever inherits our babble ! :)