o means "other". You'd have to search for "other" instances in the script to figure it out. If you happened to be looking at the script (don't worry, you won't), you might notice I'm in the habit of using similar variables throughout, mainly to reduce verbosity and make things easier to spot. Like using "e" for "event", or "i" for whatever "i" stands for ("idiot"?). I also use comments. Thus "oclient" makes it's first appearance under 

// "OTHER" [more commenty stuff you don't need to know]

(there's another variable "client" preceding that section in the script).

You could probably manage it, I concede that "others" might not. I can sleep knowing that.

Have you ever encountered a faulty traffic signal that was stuck on red?

Probably really inefficient code, but before now I've done
 

if (['ap','cgov','chs'].indexOf(oclient) > -1) {

Oh, and your original statement doesn't work because || basically starts a new if statement. So you were saying "if oclient equals 'ap' or if 'cgov' or if 'chs'", and because Javascript is annoying nice it tries to convert it into something that'll work - a string is "non-false", so it'll return true.

I don't drive.

Well yes, why would you when you can crawl.

I mean, you've been crawling for quite a while, you're pretty good at it, can shuffle up quite a pace on all fours. It makes perfect sense to continue doing the same thing, you'll get somewhere in the end, even if everyone else has long since moved on.