function setCountDown ()
{	
	seconds--;
	if (seconds < 0)
	{
		minutes--;
		seconds = 59;
	}
	if (minutes < 0)
	{
		hours--;
		minutes = 59;
	}
	if (hours < 0)
	{
		days--;
		hours = 23;
	}
	document.getElementById("remain").innerHTML = days+" days, "+hours+" hours, "+minutes+" minutes, "+seconds+" seconds";
	setTimeout ("setCountDown()", 1000);
}