<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<head>
<script type="text/javascript">
var c=0
var t
function timedCount()
{
document.getElementById('txt').value=c
c=c+1
t=setTimeout("timedCount()",1000)
}
function stopCount()
{
clearTimeout(t)
}
</script>
</head>
<body>
<form>
<input type="button" value=" Start the clock! " onClick="timedCount()">
<input type="text" id="txt">
<input type="button" value=" Stop the clock! " onClick="stopCount()">
</form>
<p> Please click the start timer button above to start the timer. The input box will keep timing from 0 Start. Click the "stop timing" button to terminate the timing. </p>
<p>timedCount(),1000ms Adjust yourself. </p>
</body>
</html>