Days <span id='Days'>-874</span><br>
Hours <span id='Hours'>-1</span><br>
Minutes <span id='Minutes'>-22</span><br>
Seconds <span id='Seconds'>-19</span><br>
<script type="text/javascript">
	
(function(){
	
	var Days = document.getElementById('Days');
	var Hours = document.getElementById('Hours');
	var Minutes = document.getElementById('Minutes');
	var Seconds = document.getElementById('Seconds');
	
	var d = parseInt(Days.innerHTML);
	var h = parseInt(Hours.innerHTML);
	var m = parseInt(Minutes.innerHTML);
	var s = parseInt(Seconds.innerHTML);
	
	var interval = setInterval(function(){
		
		s--;
		if( s < 0) {
			s = 59;
			m--;
			if( m < 0 ) {
				m = 59;
				h--;
				if( h < 0 ) {
					h = 23;
					d--;
					if(d < 0) {
						s = 0;
						m = 0;
						h = 0;
						d = 0;
						clearInterval(interval);
					}
				}
			}
		}
		
		Days.innerHTML = d;
		Hours.innerHTML = h;
		Minutes.innerHTML = m;
		Seconds.innerHTML = s;
		
	
	}, 1000);
})();

</script>