Also ich würde das so machen:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<head>
<title>testseite</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type='text/javascript'>
var i=0;
function hide() {
fields = document.getElementsByTagName("input")
if (i < fields.length) {
fields[i].style.visibility='hidden';
i++;
window.setTimeout("hide()", 400);
}
}
</script>
</head>
<body onload='hide()'>
<input type='text' id='a'>
<input type='text' id='b'>
<input type='text' id='c'>
<input type='text' id='d'>
<input type='text' id='f'>
<input type='text' id='g'>
<input type='text' id='h'>
<input type='text' id='i'>
<input type='text' id='k'>
</body>
</html>