Kod
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
</style>
<script type="text/javascript">
function czas{
var data = new Date();
document.write(data.getSeconds());
var cos = setTimeout("czas()",1000);
}
</script>
</head>
<body onload="czas()">
</body>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
</style>
<script type="text/javascript">
function czas{
var data = new Date();
document.write(data.getSeconds());
var cos = setTimeout("czas()",1000);
}
</script>
</head>
<body onload="czas()">
</body>
</body>
</html>