startDay = new Date();
clockStart = startDay.getTime();

function initStopWatch()
{
		var myTime = new Date();
		var timeNow = myTime.getTime();
		var timeDiff = timeNow - clockStart;
		this.diffSecs = timeDiff/1000;
		return (this.diffSecs);
}

function getSecs(tagId)
{
    var tagObj = document.getElementById(tagId);
	var mySecs = initStopWatch();
	var mySecs1 = ""+mySecs;
	mySecs1=5-eval(mySecs1.substring(0,mySecs1.indexOf(".")));
	if(mySecs1<1)
	    mySecs1 = 0;
	if(tagObj != null)
	    tagObj.innerHTML= mySecs1;
	window.setTimeout("getSecs('"+tagId+"')",1000);
}

window.setTimeout("getSecs('timeoutId')", 1);