// JavaScript Document
startclock()  
var timerID = null;  
var timerRunning = false;  
function showtime() {  
Today = new Date();  
var NowHour = Today.getHours();  
var NowMinute = Today.getMinutes();
var NowMonth = Today.getMonth();  
var NowDate = Today.getDate();  
var NowYear = Today.getYear();  
var NowSecond = Today.getSeconds();  
if (NowYear <2000)  
NowYear=1900+NowYear;  
Today = null;  
Hourleft = 23 - NowHour  
Minuteleft = 59 - NowMinute  
Secondleft = 59 - NowSecond  
Yearleft = 2011 - NowYear  
Monthleft = 3 - NowMonth - 1
Dateleft = 31 - NowDate  
if (Secondleft<0)  
{  
Secondleft=60+Secondleft;  
Minuteleft=Minuteleft-1;  
}  
if (Minuteleft<0)  
{   
Minuteleft=60+Minuteleft;  
Hourleft=Hourleft-1;  
}  
if (Hourleft<0)  
{  
Hourleft=24+Hourleft;  
Dateleft=Dateleft-1;  
}  
if (Dateleft<0)  
{  
Dateleft=31+Dateleft;  
Monthleft=Monthleft-1;  
}  
if (Monthleft<0)  
{  
Monthleft=12+Monthleft;  
Yearleft=Yearleft-1;  
} 
Temp=Dateleft+'D '+Hourleft+'H  '+Minuteleft+'M  '+Secondleft+'S  ';
//Temp=Yearleft+'年 '+Monthleft+'月 '+Dateleft+'天 '+Hourleft+'小时 '+Minuteleft+'分 '+Secondleft+'秒'
document.getElementsByName.form1.left.value=Temp;  
timerID = setTimeout("showtime()",1000);  
timerRunning = true;  
}  
var timerID = null;  
var timerRunning = false;  
function stopclock () {  
if(timerRunning)  
clearTimeout(timerID);  
timerRunning = false;  
}  
function startclock () {  
stopclock();  
showtime();  
}  
// -->