javascript

The simple time prompts the DEMO to keep timing from 0

You can use it later


<html>
<head>
<script type="text/javascript">
var c=0
var t
function timedCount()
{
document.getElementById('txt').value=c
c=c+1
t=setTimeout("timedCount()",1000)
}
</script>
</head>

<body>

<form>
<input type="button" value=" Start the clock! " onClick="timedCount()">
<input type="text" id="txt">
</form>
<p> Click the button above   The input field will go from  0  Start timing all the time. </p>
 If there are other forms , It's easy to modify , Things like hidden timers , Timing bomb box
</body>
</html>