Javascript Millisecond Stopwatch Timer

Millisecond Javascript Timer

source for timer.html

<html>
<head>
<script>
<!--

var millisec = 0;
var seconds = 0;
var timer;

function display(){

  if (millisec>=9){
     millisec=0
     seconds+=1
  }
  else
     millisec+=1
     document.d.d2.value = seconds + "." + millisec;
     timer = setTimeout("display()",100);
  }

function starttimer() {
	
  if (timer > 0) {
	return;
  }
  display();	
}
function stoptimer() {
  clearTimeout(timer);
  timer = 0;
}

function startstoptimer() {
  if (timer > 0) {
     clearTimeout(timer);
     timer = 0;
  } else {
     display();
  }
}

function resettimer() {
	stoptimer();
	millisec = 0;
	seconds = 0;
}


-->
</script>
</head>
<body>
<h5>Millisecond Javascript Timer</h5>
<form name="d">
<input type="text" size="8" name="d2">
<input type="button" value="Start/Stop" onclick="startstoptimer()">
<input type="reset" onclick="resettimer()">
</form>

</body></html>