Per lo scripting lato client (come il javascript)
c'è il forum SCRIPTING.
codice:
<head>
<script type="text/javascript" language="JavaScript">
<!--
    function txt_focus(){
        document.my_form.my_txt.focus();
    }
//-->
</script>
</head>

<body onload="txt_focus()">
...
...
<form name="my_form" ...>
<input type="text" name="my_txt" ...>
...
...