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    How to start the timer in external js?


    Hi guys,

    I have got a problem with my timer variable in javascript. I can't be able to start the timer every one second to input the clock time in my webpage. I tried to find out but i can't find the solution.


    here is the html code:

    Code:
    <html>
    <body>
    
    <style type="text/css">  
         
    #mytextfont {
        font-family:Arial;
        font-size:43px;
        font-style:normal;
        font-weight:normal;
        color:e5ee6f;
        text-decoration:none;
        text-transform:none; 
        position:absolute; 
        visibility:hidden; 
        overflow:hidden; 
        left:50px; top:40px; width:376px; height:90px; 
        z-index:0;
    }
    
    <span id="text1">this is a text</span>
    
    <div id="image1" style="position:absolute; overflow:hidden; left:328px; top:7px; width:164px; height:102px; z-index:0"><img src="/images/picture1.jpg" alt="" title="" border=0 width=164 height=102></div>
    
    <div id="image2" style="position:absolute; overflow:hidden; left:492px; top:7px; width:201px; height:102px; z-index:0"><img src="/images/picture2.jpg" alt="" title="" border=0 width=211 height=102></div>
    
    <script type="text/javascript" src="keyboard.js"></script>
    </body>
    </html>
    key.js:

    Code:
    function clocktimer()
    {
      var date = new Date();
      var weekday=new Array(7);
      weekday[0]="Sun";
      weekday[1]="Mon";
      weekday[2]="Tue";
      weekday[3]="Wed";
      weekday[4]="Thurs";
      weekday[5]="Fri";
      weekday[6]="Sat";
      var months=new Array(11);
      months[0]="January";
      months[1]="February";
      months[2]="March";
      months[3]="April";
      months[4]="May";
      months[5]="June";
      months[6]="July";
      months[7]="August";
      months[8]="September";
      months[9]="October";
      months[10]="November";
      months[11]="December";
      var d = date.getDate();
      var h = today.getHours();
      var m = today.getMinutes();
      document.getElementById("datetime").innerHTML =+ h+':'+ m+' '+ weekday[date.getDay()]+' '+ d+' '+ months[date.getMonth()];
    }
    
    document.onkeydown = function(ev) 
    {
       ev = ev || event;
       key = ev.keyCode || ev.which;
       var image1 = document.getElementById("image1").getElementsByTagName("img")[0];
       var image2 = document.getElementById("image2").getElementsByTagName("img")[0];
    
    if(key == 13)
    {
      var img1 = image1.src;
      var img2 = image2.src;
      
      if (img1.indexOf('picture1_yellow.jpg') != -1)
      {
         if (img2.indexOf('picture2_yellow.jpg') != -1)
         {      
             document.getElementById("text1").style.visibility = "visible";
             document.getElementById("image1").style.visibility = "hidden"; 
             document.getElementById("image2").style.visibility = "hidden"; 
             setInterval("clocktimer",1000);
         }
      }
    }
    Do you know how i can start the timer in javascript in every one second while update the text in html page?

    Any advice would be much appreicated.

    Thanks in advance
    Last edited by stephen100; March 29th, 2013 at 08:16 PM.
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  3. A Not To Shabby Code Smurf
    Devshed Beginner (1000 - 1499 posts)

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    You need to add a setInterval() or setTimeout() within your clocktimer() function; to accomplish a reoccurring time updating function.

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