Untitled

<!DOCTYPE html>
<html>
<body>

<span id="tHours"></span>:<span id="tMins"></span>:<span id="tSeconds"></span>:<span id="tMilli"></span>

<script>
    var hours = 1;
    var mins = hours * 60;
    var secs = mins * 60;
    var mill = secs * 100;
    var currentHours = 0;
    var currentSeconds = 0;
    var currentMinutes = 0;
    vas currentMilli = 0;
    setTimeout('DecrementMilli()',100);
    setTimeout('DecrementSeconds()',1000);
    setTimeout('DecrementMinutes()',10000);
    setTimeout('DecrementHours()',100000);

    function DecrementMilli() {
        currentMilli = secs % 100;
        if(currentMilli <= 99) currentMilli = "000" + currentMilli;
        secs--;
        document.getElementById("tMilli").innerHTML = currentMilli;
        if(mill !== -1) setTimeout('Decrement()',100);
    }
        function DecrementSeconds() {
        currentSeconds = secs % 60;
        if(currentSeconds <= 9) currentSeconds = "0" + currentSeconds;
        secs--;
        document.getElementById("tSeconds").innerHTML = currentSeconds;
        if(secs !== -1) setTimeout('Decrement()',1000);
    }
        function DecrementMinutes() {
        currentMinutes = Math.round(secs / 60);
        if(currentMinutes <= 60) currentMinutes = "00";
        mins--;
        document.getElementById("tMins").innerHTML = currentMinutes;
        if(mins !== -1) setTimeout('Decrement()',10000);
    }
        function DecrementHours() {
        currentHours = Math.round(1440 / 60);
        if(currentHours <= 24) currentHours - 1;
        hours--;
        document.getElementById("tHours").innerHTML = currentHours;
        if(hours !== -1) setTimeout('Decrement()',100000);
    }
</script>

</body>
</html>