How hard would this be?

[aceofspades]

I was wondering how hard it would be to stop people viewing other peoples profile pages untill they have added that person as a friend, much like facebook does.

Thanks !

James

[Dismounted]

How hard? I wouldn't say difficult, but probably not easy either.

[aceofspades]

Can it be done purely with conditionals?

[Dismounted]

Maybe, I haven't delved enough into the code.