2008北京奥运会的倒计时js代码

var DateOne="";
var date=new Date();
var year="",month="",day="",week="";
year=date.getFullYear();

month=date.getMonth()+1;
if(month<10) month= "0"+month;

day=date.getDate();
if(day<10) day= "0"+day;

DateOne=year+'-'+month+'-'+day;
DateTwo='2008-08-08';

    var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));  
    var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);  
    var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));  
  
    var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));  
    var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);  
    var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));  
  
    var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);

document.writeln(Math.abs(cha));