contador, timer o como se llame

[MaLeVo]

T sirve este?

<script languaje="javascript">

//cambiar el texto
var before="navidad"
var current="Hoy es navidad!"
var montharray=new Array("Jan","Feb","Mar&qu ot;,"Apr","May","Jun&quot ;,"Jul","Aug","Sep", "Oct","Nov","Dec" )

function countdown(yr,m,d){
var today=new Date()
var todayy=today.getYear()
if (todayy < 1000)
todayy+=1900
var todaym=today.getMonth()
var todayd=today.getDate()
var todaystring=montharray[todaym]+" "+todayd+", "+todayy
var futurestring=montharray[m-1]+" "+d+", "+yr
var difference=(Math.round((Date.parse(futurestring)-Date.parse(todaystring))/(24*60*60*1000))*1)
if (difference==0)
document.write(current)
else if (difference>0)
document.write("Faltan "+difference+" días para "+before)
}
//cambiar la fecha
countdown(2002,12,25)
</script>