var timeID=null;
var timerRunning=false;
function stopclock (){
        if(timerRunning)

                clearTimeout(timerID);
        timerRunning=false;
        }
function startclock (){
        stopclock ();
        showtime ();
        }
function showtime() {
        var now=new Date();

        var hours= now.getHours();
        var minutes= now.getMinutes();
        var seconds= now.getSeconds();
        var timeValue=""+ hours;
        timeValue += ((minutes<10) ? ":0" : ":") + minutes

        timeValue += ((seconds<10) ? ":0" : ":") + seconds

//        document.clock.face.value= timeValue
        document.getElementById('face').innerHTML= timeValue
        timerID = setTimeout("showtime()",1000);
        timerRunning = true;

        }