function show_date_time(){
 window.setTimeout("show_date_time()", 1000);
 target=new Date(2010,1,14,0,0,0);
 today=new Date();
 timeold=(target.getTime()-today.getTime());
 
 sectimeold=timeold/1000
 secondsold=Math.floor(sectimeold);
 msPerDay=24*60*60*1000
 e_daysold=timeold/msPerDay
 daysold=Math.floor(e_daysold);
 e_hrsold=(e_daysold-daysold)*24;
 hrsold=Math.floor(e_hrsold);
 e_minsold=(e_hrsold-hrsold)*60;
 minsold=Math.floor((e_hrsold-hrsold)*60);
 seconds=Math.floor((e_minsold-minsold)*60);
 
  if (daysold<0) {
	document.getElementById("TimeCounter").innerHTML="逾期,倒计时已经失效";
}
 else{
 if (daysold<10) {daysold="0"+daysold}
 if (daysold<100) {daysold=daysold}
 if (hrsold<10) {hrsold="0"+hrsold}
 if (minsold<10) {minsold="0"+minsold}
 if (seconds<10) {seconds="0"+seconds}
 if (daysold<3) {
 	document.getElementById("TimeCounter").innerHTML="<span style='color:#ff0000;'>"+daysold+"天"+hrsold+"小时"+minsold+"分"+seconds+"秒</span>";
}
 else
 	document.getElementById("TimeCounter").innerHTML=daysold+"天"+hrsold+"小时"+minsold+"分"+seconds+"秒";
}
}
if(document.getElementById("TimeCounter")){show_date_time()};