body 안에 넣으세요

<script language="JavaScript1.2">
function setcountdown(theyear,themonth,theday,thehour,themin,thesec){
yr=theyear;mo=themonth;da=theday;hr=thehour;min=themin;sec=thesec
}

// 1: 카운트다운할 날짜와 시간을 입력 하세요 (년, 월, 일, 시(0=자정,23=밤11시), 분,초
setcountdown(2010,12,05,12,00,00)

// 2: 메세지들을 설정 하세요
var occasion="그녀와 만난지 10주년 되는 날"
var message_on_occasion="드디어 10년이 흘렀네요"

// 3: 카운트 다운 영역을 설정 하세요
var countdownwidth='600px' // 가로크기
var countdownheight='35px' // 높이
var countdownbgcolor='lightyellow' // 배경색
var opentags='<font face="굴림">' // 글자모양
var closetags='</font>' // 글자모양 종료태그

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+" "+hr+":"+min+":"+sec
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+"Occasion already passed! "+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=occasion +"까지 " + opentags+dday+ " 일, "+dhour+" 시간, "+dmin+" 분, "+dsec+" 초가 남았습니다"+closetags
}
setTimeout("countdown()",1000)
}
</script>

<ilayer id="countdownnsmain" width=&{countdownwidth}; height=&{countdownheight}; bgColor=&{countdownbgcolor}; visibility=hide><layer id="countdownnssub" width=&{countdownwidth}; height=&{countdownheight}; left=0 top=0></layer></ilayer>