js实现的奥运倒计时时钟效果代码
网络编程 2021-07-04 21:04www.168986.cn编程入门
这篇文章主要介绍了js实现的奥运倒计时时钟效果代码,可实现根据指定时间进行倒计时的实时显示效果,非常简单实用,需要的朋友可以参考下
本文实例讲述了js实现的奥运倒计时时钟效果代码。分享给大家供大家参考，具体如下
运行效果截图如下
具体代码如下
<html>
<head>
<title>js倒计时</title>
<SCRIPT language=JavaScript1.2>
function setcountdown(theyear,themonth,theday){
yr=theyear;mo=themonth;da=theday
}
setcountdown(2016,8,5)
var oasion="2016巴西奥运会"
var message_on_oasion="盼望已久的时刻终于来到了!"
var countdownwidth='480px'
var countdownheight='20px'
var countdownbgcolor='tan'
var opentags='<font face="宋体"><small>'
var closetags='</small></font>'
var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")
var crosscount=''
function start_countdown(){
if (document.layers)
document.countdownnsmain.visibility="show"
else if (document.all||document.getElementById)
crosscount=document.getElementById&&!document.all?document.getElementById("countdownie") : countdownie
countdown()
}
if (document.all||document.getElementById)
document.write('<span id="countdownie" style="width:'+countdownwidth+'; background-color:'+countdownbgcolor+'"></span>')
window.onload=start_countdown
function countdown(){
var today=new Date()
var todayy=today.getYear()
if (todayy < 1000)
todayy+=1900
var todaym=today.getMonth()
var todayd=today.getDate()
var todayh=today.getHours()
var todaymin=today.getMinutes()
var todaysec=today.getSeconds()
var todaystring=montharray[todaym]+" "+todayd+", "+todayy+" "+todayh+":"+todaymin+":"+todaysec
futurestring=montharray[mo-1]+" "+da+", "+yr
dd=Date.parse(futurestring)-Date.parse(todaystring)
dday=Math.floor(dd/(6060100024)1)
dhour=Math.floor((dd%(6060100024))/(60601000)1)
dmin=Math.floor(((dd%(6060100024))%(60601000))/(601000)1)
dsec=Math.floor((((dd%(6060100024))%(60601000))%(601000))/10001)
if(dday<=0&&dhour<=0&&dmin<=0&&dsec<=1&&todayd==da){
if (document.layers){
document.countdownnsmain.document.countdownnssub.document.write(opentags+message_on_oasion+closetags)
document.countdownnsmain.document.countdownnssub.document.close()
}
else if (document.all||document.getElementById)
crosscount.innerHTML=opentags+message_on_oasion+closetags
return
}
else if (dday<=-1){
if (document.layers){
document.countdownnsmain.document.countdownnssub.document.write(opentags+"时间已经过了!"+closetags)
document.countdownnsmain.document.countdownnssub.document.close()
}
else if (document.all||document.getElementById)
crosscount.innerHTML=opentags+"Oasion already passed! "+closetags
return
}
else{
if (document.layers){
document.countdownnsmain.document.countdownnssub.document.write(opentags+dday+ " days, "+dhour+" hours, "+dmin+" minutes, and "+dsec+" seconds left until "+oasion+closetags)
document.countdownnsmain.document.countdownnssub.document.close()
}
else if (document.all||document.getElementById)
crosscount.innerHTML=opentags+"还有 "+dday+ " 天, "+dhour+" 小时, "+dmin+" 分, "+dsec+" 秒 就是 "+oasion+closetags
}
setTimeout("countdown()",1000)
}
</SCRIPT>
<SCRIPT type="text/javascript" src=""></SCRIPT>
<SCRIPT language="JavaScript">
<!--
BaiduWriteAD("zouwenyedg","3");
//-->
</SCRIPT>
</head>
<body>
<ILAYER id=countdownnsmain visibility="hide" bgColor="&{countdownbgcolor};"
height="&{countdownheight};" width="&{countdownwidth};"><LAYER
id=countdownnssub height="&{countdownheight};"
width="&{countdownwidth};" ="0" left="0"></LAYER></ILAYER>
</body>
</html>
希望本文所述对大家JavaScript程序设计有所帮助。
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