倒计时 js

JavaScript032

倒计时 js,第1张

<SCRIPT LANGUAGE="JavaScript">   

<!--   

var maxtime = 60*60 //一个小时，按秒计算，自己调整!   

function CountDown(){   

if(maxtime>=0){   

minutes = Math.floor(maxtime/60)   

seconds = Math.floor(maxtime%60) 

minutes = minutes>=10?minutes:'0'+minutes

seconds = seconds>=10?seconds:'0'+seconds  

msg = "距离结束还有"+minutes+"分"+seconds+"秒"   

document.all["timer"].innerHTML=msg   

if(maxtime == 5*60) alert('注意，还有5分钟!')   

--maxtime   

}   

else{   

clearInterval(timer)   

alert("时间到，结束!")   

}   

}   

timer = setInterval("CountDown()",1000)   

//-->   

</SCRIPT> 

<meta charset="utf-8">  

<div id="timer" style="color:red"></div>

JS实现倒计时(时、分，秒)

var

interval

=

1000

function

ShowCountDown(year,month,day,divname)

{

var

now

=

new

Date()

var

endDate

=

new

Date(year,

month-1,

day)

var

leftTime=endDate.getTime()-now.getTime()

var

leftsecond

=

parseInt(leftTime/1000)

//var

day1=parseInt(leftsecond/(24*60*60*6))

var

day1=Math.floor(leftsecond/(60*60*24))

var

hour=Math.floor((leftsecond-day1*24*60*60)/3600)

var

minute=Math.floor((leftsecond-day1*24*60*60-hour*3600)/60)

var

second=Math.floor(leftsecond-day1*24*60*60-hour*3600-minute*60)

var

cc

=

document.getElementById(divname)

cc.innerHTML

=

"脚本之家提示距离"+year+"年"+month+"月"+day+"日还有："+day1+"天"+hour+"小时"+minute+"分"+second+"秒"

}

window.setInterval(function(){ShowCountDown(2010,4,20,'divdown1')},

interval)

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注:如需引入外部Js需刷新才能执行]

function timeshow(){

var time = 3//s

var start = window.setInterval(function(){

time = time - 1

console.log(time)

document.getElementById('show').innerHTML='计时开始，'+time+'秒后跳转!'

if(time == 0){

window.clearInterval(start)

document.getElementById('show').innerHTML='计时结束'

}

},1000)

}