function countdown(t, uts) {
// ETime = End Time
// CTime = Current Time
// DTime = Delay Time
// STime = Start Time
    if (t && STime) {
        CTime = new Date()
        CTime = Math.round(CTime / 1000);
        DTime = CTime - STime;
        document.getElementById("cd").style.display = "block";
    } else if (t) {
        DTime = 0;
    }
    ETime = uts;  // Timestamp übernehmen
    CTime = new Date()
//    CTime = Math.round(CTime / 1000 + DTime);
    CTime = Math.round(CTime / 1000);
    Diff = ETime - CTime;
    D = String(Math.floor(Diff / 86400));
    H = String(Math.floor(Diff / 3600) % 24);
    M = String(Math.floor(Diff / 60) % 60);
    S = String(Diff % 60);
    if (H.length == 1) { H = "0" + H; }
    if (M.length == 1) { M = "0" + M; }
    if (S.length == 1) { S = "0" + S; }
    if (Diff >= 0) {
        document.getElementById("cd").innerHTML = "" + D + " Tage - " + H + ":" + M + ":" + S + "";
        window.setTimeout("countdown(0, " + ETime + ")",1000);
    } else {
        document.getElementById("cd").style.display = "none";
    }
}