var theDay = new Date("May 13, 2010");
function DownCount(){
var today = new Date();
var seconds = Math.floor((theDay.getTime() - today.getTime())/1000);
var minutes = Math.floor(seconds/60);
var hours = Math.floor(minutes/60);
var days = Math.floor(hours/24);
CDay= days;
CHour= hours % 24;
CMinute= minutes % 60;
CSecond= seconds % 60;

document.getElementById('day').innerHTML = CDay;
document.getElementById('hour').innerHTML = CHour;
document.getElementById('min').innerHTML = CMinute;
document.getElementById('sec').innerHTML = CSecond;
var counter = setTimeout("DownCount()", 1000);
}