zistovanie dlzky policok formu

<script language="JavaScript">

<!--

var maxlenght=16;

function cekni (){

	document.miestnosti.zostava.value = document.miestnosti.nazov.value.lenght;

}

// -->>

</script>

</head>

...

<form action="sprava.php" method="post" name="miestnosti">

<input type="text" size="35" maxlength="13" name="nazov" onKeyDown="cekni()" onKeyUp="cekni()"> *  <input type="text" size="10" maxlenght="10" name="zostava" value="16"><br>

...