i need a code example for input box and button...

i need a code example for putting a button and input box on a webpage using javascript. when clicked the button should send the webbrowser to www.website.com/contentsofinputbox

Code:

---

<script>
function go()
{
  var url = "http://www.website.com/" + document.a.b.value;
  window.location = url;
}
</script>
<form name="a">
<input type="text" name="b">
<input type="button" value="Go!" onClick="go();">
</form>

---

thx it works great :)