check if logged-in

[Cameron]

I would like to change some things in my header depending on whether or not I am logged-in. Is this possible? I imagine it would involve detecting the status of the cookie, but I'm not certain as to how to proceed. Any quick tips?

[Cameron]

Nobody? :dunno :cry

[Nimai]

Haha- oh, this is sad. I was googling for a way, through Javascript, how to test if I am logged in, and I find this unanswered thread from 5 years ago!

I want this just for doing some development tests that I don't want live for all customers to see.
I'll keep googling, but if anyone knows, please post here!

Thanks.

[Nimai]

Looks like the answer is:
if (YD.hasClass(document.body, "loggedIn") )
{
...