function getInfo (cn, callback) {
    var anArray = [];
    redis_client.hgetall('chat_info:' + cn, function (err, vals) {
        if(err) { throw err; }
        for(i in vals) {
            anArray.push(vals[i]);
        }
        return callback(anArray);
    });
}

redis_client.hgetall('chat_rooms:' + POST.chat_name, function (err, val) {
    if(err) { throw err; }
    var     vars = [],
        rArr = [];

    for (i in val) {
        vars.push(i);
    }
    for(var i = 0; i < vars.length; i += 1) {
        if(i%2 === 0) {
            getInfo(vars[i], function (hej) {
                rArr.push(hej);
            });
        }
    }
});