var now = new Date();
function createtime(){

var grt= new Date("12/1/2006 00:00:00");

now.setTime(now.getTime()+250);
days = (grt - now) / 1000 / 60 / 60 / 24;
dnum = Math.floor(days);
hours = (grt - now) / 1000 / 60 / 60 - (24 * dnum);
hnum = Math.floor(hours);
minutes = (grt - now) / 1000 /60 - (24 * 60 * dnum) - (60 * hnum);
mnum = Math.floor(minutes);
seconds = (grt - now) / 1000 - (24 * 60 * 60 * dnum) - (60 * 60 * hnum) - (60 * mnum);
snum = Math.round(seconds);

document.getElementById("gkdjs").innerHTML = "<div class='gkdjs1'>"+dnum+"</div><div class='gkdjs2'>"+ hnum +":"+ mnum +":"+ snum +"</div>";
}

setInterval("createtime()",250);