/* http://bitby.net/programming/java/tajmer-obratnogo-otscheta/ */
function StartCountDown(myDiv,myTargetDate) {
 var dthen = new Date(myTargetDate);
 var dnow = new Date();
 ddiff = new Date(dthen-dnow);
 gsecs = Math.floor(ddiff.valueOf()/1000);
 CountBack(myDiv,gsecs);
}

function Calcage(secs, num1, num2) {
 s = ((Math.floor(secs/num1))%num2).toString();
 if (s.length < 2) { s = "0" + s; }
 return (s);
}

function CountBack(myDiv, secs) {
 var DisplayStr;
 var DisplayFormat = "<b>До выставки осталось</b><br />дней: %%D%%, часов: %%H%%, минут: %%M%%, секунд %%S%%";
 DisplayStr = DisplayFormat.replace(/%%D%%/g, Calcage(secs,86400,100000));
 DisplayStr = DisplayStr.replace(/%%H%%/g, Calcage(secs,3600,24));
 DisplayStr = DisplayStr.replace(/%%M%%/g, Calcage(secs,60,60));
 DisplayStr = DisplayStr.replace(/%%S%%/g, Calcage(secs,1,60));
 if(secs > 0) {
 document.getElementById(myDiv).innerHTML = DisplayStr;
 setTimeout("CountBack('" + myDiv + "'," + (secs-1) + ");", 990);
 }
 else { 
 var AuctionOver = "<b>До выставки осталось</b><br />дней: 00, часов: 00, минут: 00, секунд 00";
 document.getElementById(myDiv).innerHTML = AuctionOver; }
}