Function som kalder anden funktion - return af 2. funktions outpu

Hvordan Får jeg var output fra getTrialsHandler ud gennem det aller nederste kald til getTrials?

function getTrials(day, userID){
    var pc:PendingCall = service.getTrials(day, userID);
    pc.responder = new RelayResponder(this, "getTrialsHandler", null);
}

function getTrialsHandler(re:ResultEvent, day){
    if(!re.result){
        trace("ERR: load trials for day"+day);
    } else {
        trace("SUC: load trials for day"+day);
        if(re.result[1] > _root.currentDay){
            goto = "closed";
        } else if(re.result[0] < 5){
            goto = "open";
        } else if(re.result[0] == 5) {
            goto = "full";
        }
        out = (re.result[0]+"::"+re.result[1]);
    }
    return out;
}

trace( getTrials(1,16) );