How to check if a person is logged in to facebook?

Well basically this is what i want to do :

When a User visits http://mydomain.com/file.html ,i want these to happen :

1. Redirect to location1 if person is already logged-in to his facebook account.

OR

2. Redirect to location2 if person is not logged-n to his facebook account.

Is this possible?

 

Sure.

Start reading from here:
http://developers.facebook.com/docs/reference/javascript/fb.getloginstatus/

 

i m not ablt to get it, if anyone can post an example code for http://mydomain.com/file.html it would be of great help to me.
thanks

 

check whether facebook session or not?

 

Yes it is possible... You need to write a fb app or use fb connect on ur site.... contact me for further info..

 

have a look here.... https://github.com/facebook/php-sdk/

 

all this is concerning the particular APP SESSION, i need to know if a user is logged in to FACEBOOK or not, not the application.

 

facebook have not released any social plugin yet to know user login status without using a fb app or fb connect.... have a look at available social plugins at http://developers.facebook.com/plugins

 

I was going to say the same thing