I'm currently integrating Facebook with my website using the Javascript SDK. I've got the login portion working well. The only thing I'm trying to figure out is if there is a way to tell if it was the first time the user logged into my website using their Facebook credientials. I tried subscribing to auth.login, but that didn't seem to have any information about that. Is there a flag anywhere that lets me know this? Or another way to go about looking this up? I realize I could do some server side code, but I'd prefer to stay away from that if possible.

Thanks in advance, Brandon