Objekte: Date

Script:

<html><head>
<title>Javascript</title>
<script language="JavaScript">
<!--
var t1, id;
function start()
{
var time;
time=new Date();
t1=time;
messen();
}
function messen()
{
var t2;
t2=new Date()
var tdif;
tdif=t2-t1;
var ts;
ts=tdif/1000;
document.clock.digits.value=ts;
id=setTimeout("messen()",10);
}
function stop()
{
clearTimeout(id);
}
//-->
</script>
</head>
<body>

<form name="clock">
Zeit bisher in Sekunden:<br>
<input type="text" name="digits" size=12><p>
<input type="button" value="Start" onClick="start()">
<input type="button" value="Stop" onClick="stop()">
</form>
</body></html>

Ergebnis:

Zeit bisher in Sekunden:

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hier: