setInterval(timer, 1000);
function timer(){
today = new Date();
BigDay = new Date("jun 11, 2010")
msPerDay = 24 * 60 * 60 * 1000;
timeLeft = (BigDay.getTime() - today.getTime());
e_daysLeft = timeLeft / msPerDay;
daysLeft = Math.floor(e_daysLeft);
e_hrsLeft = (e_daysLeft - daysLeft)*24;
hrsLeft = Math.floor(e_hrsLeft);
e_minsLeft = (e_hrsLeft - hrsLeft)*60;
minsLeft = Math.floor((e_hrsLeft - hrsLeft)*60);
secsLeft = Math.floor((e_minsLeft - minsLeft)*60);
//document.writeln("--------------- "+daysLeft+" дней "+hrsLeft+" : "+minsLeft+" : "+secsLeft);

if (hrsLeft < 10) hrsLeft = "0" + hrsLeft;
if (minsLeft < 10) minsLeft = "0" + minsLeft;
if (secsLeft < 10) secsLeft = "0" + secsLeft; 

var hor_one = (hrsLeft + '').charAt ((hrsLeft + '').length - 1); 
var hor_two = (hrsLeft + '').charAt ((hrsLeft + '').length - 2); 
var min_one = (minsLeft + '').charAt ((minsLeft + '').length - 1); 
var min_two = (minsLeft + '').charAt ((minsLeft + '').length - 2); 
var sec_one = (secsLeft + '').charAt ((secsLeft + '').length - 1); 
var sec_two = (secsLeft + '').charAt ((secsLeft + '').length - 2); 

document.getElementById("h1").className = "numb_"+hor_two;
document.getElementById("h2").className = "numb_"+hor_one;
document.getElementById("m1").className = "numb_"+min_two;
document.getElementById("m2").className = "numb_"+min_one;
document.getElementById("s1").className = "numb_"+sec_two;
document.getElementById("s2").className = "numb_"+sec_one;
}