Mező törlés

<html>
<head>
        <script>
                function cleartext(){
                        document.getElementById("torlendo").value="";
                }
        </script>
</head>
<body>
<input type="button" value="torol" onclick="cleartext()" />
<textarea rows="4" cols="50" id="torlendo">
</textarea>

</body>
</html>