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Javascript - Help with simple timer

Hi.. I'm trying to create a simple timer .  But the on Stop function does not stop my timer.
Any ideas what is wrong. How can I create a simple timer with a start and stop button.
thx



  onStart: function ()
        {  
            var that = this;  
           
            _count = 0;
                   
           var _timer = setInterval(function()
           {
                if (_count == 60)
                {
                    _count = 0
                }
               
                _count++;
               
                that.set("counter", _count);
               
            },1000);
           
        },

        onStop: function () {
            var that = this;
           
           
            clearTimeout();
            clearInterval();      
           
           
            that.clearForm();          
        },

        clearForm: function () {
            var that = this;
            that.set("counter", "0");
        },
0
JElster
Asked:
JElster
2 Solutions
 
mokaid83Commented:
<html>
<head>
<script type="text/javascript">
var c=0;
var t;
var timer_is_on=0;
 
function timedCount()
{
document.getElementById('txt').value=c;
c=c+1;
t=setTimeout("timedCount()",1000);
}
 
function doTimer()
{
if (!timer_is_on)
  {
  timer_is_on=1;
  timedCount();
  }
}
 
function stopCount()
{
clearTimeout(t);
timer_is_on=0;
}
</script>
</head>
<body>
<form>
<input type="button" value="Start count!" onclick="doTimer()" />
<input type="text" id="txt" />
<input type="button" value="Stop count!" onclick="stopCount()" />
</form>
<p>
Click on the "Start count!" button above to start the timer. The input field will count forever, starting at 0. Click on the "Stop count!" button to stop the counting. Click on the "Start count!" button to start the timer again.
</p>
</body>
</html>
0
 
Snarf0001Commented:
You just need to move your "_timer" variable outside the onstart function.
setInterval returns an id for that item (which you're capturing), but you have to pass that variable into clearInterval.

clearInterval(_timer);

So that variable needs to be outside the onStart function so that onStop can see and use it as well.
0

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