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  1. #1
    New Coder
    Join Date
    Apr 2012
    Thanked 0 Times in 0 Posts

    JS Countdown Refresh?

    What can I add to my code to refresh the timer's output?

    here's my Script:
    <script language="javascript" type="text/javascript">
    today  = new Date();
    todayEpoch  = today.getTime();
    target = new Date("03 May, 2012"); 
    targetEpoch = target.getTime();
    daysLeft = Math.floor(((targetEpoch - todayEpoch) / (60*60*24)) / 1000);
    hoursLeft = Math.floor(((targetEpoch - todayEpoch) / (60*60)) /1000);
    minutesLeft = Math.floor(((targetEpoch - todayEpoch) / (60)) /1000);
    secondsLeft = Math.floor(((targetEpoch - todayEpoch)) /1000);
    hours = Math.floor((hoursLeft)-((daysLeft)*24)); 
    minutes = Math.floor((minutesLeft)-(hoursLeft*60));
    seconds = Math.floor((secondsLeft)-(minutesLeft*60));
    and how it would be placed in a html document (snippet):
    I  am 18 in: <br>
    <script>document.write(daysLeft);</script> Days, <br>
    <script>document.write(hours);</script> Hours, <br>
    <script>document.write(minutes);</script> Minutes and <br>
    <script>document.write(seconds);</script> seconds! <br>
    Any help appreciated!

  2. #2
    Master Coder felgall's Avatar
    Join Date
    Sep 2005
    Sydney, Australia
    Thanked 932 Times in 919 Posts
    To have the countodwn update within the page you need to throw away all that antiquated JavaScript and start again.

    document.write can only run before the page loads and is only useful where you don't have access to generate the output on the server.

    See http://javascript.about.com/library/blcount1.htm for the sort of code you need to be able to have the countdown timer actually count down.
    Learn Modern JavaScript - http://javascriptexample.net/
    Helping others to solve their computer problem at http://www.felgall.com/

    Don't forget to start your JavaScript code with "use strict"; which makes it easier to find errors in your code.


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