I am using some code I found on the internet that creates a countdown from a certain date. I am trying to edit the code so that it only gives me a countdown from an hour, minute, and second that I specify from a future date. I cannot just have code that counts down from a specified time, I need it to countdown to a specified date in the future. This is important so that if the browser is refreshed the countdown doesn't start over but continues where left off. I will be using cookies so the browser remembers what future date was specified when it was first run.

Here is the HTML:

<form name="count">
<input type="text" size="69" name="count2">
</form>

And here is the javascript:

window.onload = function()  {
//change the text below to reflect your own,
var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")

function countdown(yr,m,d){
var theyear=yr; var themonth=m; var theday=d
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[m-1]+" "+d+", "+yr

var dd=Date.parse(futurestring)-Date.parse(todaystring)
var dday=Math.floor(dd/(60*60*1000*24)*1)
var dhour=Math.floor((dd%(60*60*1000*24))/(60*60*1000)*1)
var dmin=Math.floor(((dd%(60*60*1000*24))%(60*60*1000))/(60*1000)*1)
var dsec=Math.floor((((dd%(60*60*1000*24))%(60*60*1000))%(60*1000))/1000*1)
if(dday==0&&dhour==0&&dmin==0&&dsec==1){
document.forms.count.count2.value=current
return
}
else
document.forms.count.count2.value= dhour+":"+dmin+":"+dsec;
setTimeout(function() {countdown(theyear,themonth,theday)},1000)
}
//enter the count down date using the format year/month/day
countdown(2012,12,25)
}

I am sure there is superfluous code above since I only need an hour, minute, and second that I would like to pass to the countdown() function. The year, month and day is unimportant but as I said this is code I am trying to edit which I found on the internet. Any help would be very appreciated. Thank you!