Originally Posted by holograph

here you go

HEAD:

<script language="JavaScript">
function openwin()
{
var arg = document.thisform.username.value;
var url = 'http://www.yourdomain.com/'+ arg;
window.open(url, 'mywindow', 'width=400,height=200,toolbar=yes,location=yes,dir ectories=yes,status=yes,menubar=yes,scrollbars=yes ,copyhistory=yes,resizable=yes');
}
</script>

----
BODY:

<form name=thisform>
<input id=text type=text name=username value=""> <input type="Button" name=submit value=enter onclick="openwin();">
</form>