Javascript Example
Screen shot
Javascript run time clock
<html>
<head>
<title>Javascript example</title>
<script language=\"javascript\" type=\"text/javascript\">
function timing()
{
var a=new Date();
h=a.getHours();
m=a.getMinutes();
s=a.getSeconds();

if(s<=9) s=\"0\"+s;
if(m<=9) m=\"0\"+m;
if(h<=9) h=\"0\"+h;

time=h+\":\"+m+\":\"+s;
document.frm.mytime.value=time;
setTimeout(\"timing()\",1000);
}
</script>
</head>
<body>
<form name=\"frm\">
<input type=\"text\" name=\"mytime\" size=\"8\">
<script language=\"javaScript\" type=\"text/javascript\">
timing();
</script>
</form>
</body>
</html>

You can download source code here