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js實(shí)現(xiàn)的奧運(yùn)倒計(jì)時(shí)時(shí)鐘效果代碼

更新時(shí)間：2015年12月09日 10:25:49 作者：fox123871

這篇文章主要介紹了js實(shí)現(xiàn)的奧運(yùn)倒計(jì)時(shí)時(shí)鐘效果代碼,可實(shí)現(xiàn)根據(jù)指定時(shí)間進(jìn)行倒計(jì)時(shí)的實(shí)時(shí)顯示效果,非常簡(jiǎn)單實(shí)用,需要的朋友可以參考下

本文實(shí)例講述了js實(shí)現(xiàn)的奧運(yùn)倒計(jì)時(shí)時(shí)鐘效果代碼。分享給大家供大家參考，具體如下：

運(yùn)行效果截圖如下：

具體代碼如下：

<html> 
<head> 
 <title>js倒計(jì)時(shí)</title> 
 <SCRIPT language=JavaScript1.2> 
function setcountdown(theyear,themonth,theday){ 
yr=theyear;mo=themonth;da=theday 
} 
setcountdown(2016,8,5) 
var occasion="2016巴西奧運(yùn)會(huì)" 
var message_on_occasion="盼望已久的時(shí)刻終于來(lái)到了!" 
var countdownwidth='480px' 
var countdownheight='20px' 
var countdownbgcolor='tan' 
var opentags='<font face="宋體"><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/(60*60*1000*24)*1) 
dhour=Math.floor((dd%(60*60*1000*24))/(60*60*1000)*1) 
dmin=Math.floor(((dd%(60*60*1000*24))%(60*60*1000))/(60*1000)*1) 
dsec=Math.floor((((dd%(60*60*1000*24))%(60*60*1000))%(60*1000))/1000*1) 
if(dday<=0&&dhour<=0&&dmin<=0&&dsec<=1&&todayd==da){ 
if (document.layers){ 
document.countdownnsmain.document.countdownnssub.document.write(opentags+message_on_occasion+closetags) 
document.countdownnsmain.document.countdownnssub.document.close() 
} 
else if (document.all||document.getElementById) 
crosscount.innerHTML=opentags+message_on_occasion+closetags 
return 
} 
else if (dday<=-1){ 
if (document.layers){ 
document.countdownnsmain.document.countdownnssub.document.write(opentags+"時(shí)間已經(jīng)過(guò)了!"+closetags) 
document.countdownnsmain.document.countdownnssub.document.close() 
} 
else if (document.all||document.getElementById) 
crosscount.innerHTML=opentags+"Occasion 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 "+occasion+closetags) 
document.countdownnsmain.document.countdownnssub.document.close() 
} 
else if (document.all||document.getElementById) 
crosscount.innerHTML=opentags+"還有 "+dday+ " 天, "+dhour+" 小時(shí), "+dmin+" 分, "+dsec+" 秒 就是 "+occasion+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};" top="0" left="0"></LAYER></ILAYER> 
</body> 
</html>

希望本文所述對(duì)大家JavaScript程序設(shè)計(jì)有所幫助。

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