I need to create some functionality on a clients website which lists the users friends and allows them to send a link to their inbox.

So far, I have it listing the users friends using `fb.api` functionality, but from what I can see, there is no way to send the users friend a message (not post to their wall, this needs to go into their inbox.) 

edit: The user would log in first.

Does anyone know if this is possible? I've tried looking at [`fb.ui`](https://developers.facebook.com/docs/reference/javascript/FB.ui/) but I can't seem to find anything useful.