FB.api(
            {
                method: 'fql.query',
                query: 'SELECT uid FROM permissions WHERE email = 1 AND uid = me()',
            },
            function(response) {
                if(response.uid != 'undefined') {
                    console.log("User has permission.");
                } else {
                    console.log("User does not have permission.");
                }
            }
        );