지나온 날짜 초 단위 텍스트 카운터

태어나서.. 살아온 날들...<br><br><span id="COUNTER">^_^</span>

<script language="JavaScript">
<!--
	var then = new Date('august 20,1979'); // 날짜 설정
	var now = new Date();
	var Total_sec = Math.floor((now.getTime() - then.getTime()) / 1000);

	function dayCounter(){
		Remain_days = Math.floor(Total_sec / 86400);
		Remain_tot_sec = Total_sec - 86400 * Remain_days;
		Remain_hour = Math.floor(Remain_tot_sec / 3600);
		tmp = Remain_tot_sec - Remain_hour * 3600;
		Remain_minute = Math.floor(tmp / 60);
		Remain_sec = Math.floor(tmp % 60);
		
		Remain_days = Remain_days + '일 ';
		if(Remain_sec < 10)Remain_sec = '0' + Remain_sec;
		if(Remain_minute < 10)Remain_minute = '0' + Remain_minute;
		if(Remain_hour <= 0)Remain_hour = '';
		else Remain_hour = Remain_hour + '시간 ';
		
		document.getElementById('COUNTER').innerHTML = Remain_days + Remain_hour + Remain_minute + '분 ' + Remain_sec + '초 지나갔네요.';
		Total_sec++;
	}

	dayCounter();
	setInterval("dayCounter()",1000);
//-->
</script>