How send invititaion facebook for all friend?

Now I use method for invite user with fb_frnd_id:

function send_invitation(fb_frnd_id){
        FB.ui({ method: 'apprequests',
            message: 'IdiotMinds Programming Blog...',
            to:fb_frnd_id
        });
    }

How to send invite for all ID's, when fb_frnd_id is array of ID's