Facebook Graph API Question: How can i get permanent permission/access token to display a public photo album on a webpage?

I know it'开发者_开发问答s possible to display public images once I have the access token, but how do I go about getting it? I found the facebook dev docs to be kind've confusing when it comes to extended permissions.

Do i need to somehow register the image gallery/portfolio as an app and have the facebook user who's gallery it is allow it?

Thanks for any help on this!

If I'm not mistaken you just need offline_access extended permission - then your token will (nearly) never expire

based on http://developers.facebook.com/docs/authentication/permissions