RISOLTO!
<script LANGUAGE="JavaScript">
function whatURL() {
window.location= 'http://www.ilmiosito.it/' + document.form1.url.value;
}
</SCRIPT>
</head>
<body>
<FORM name=form1>
<input type=text name="url">
<input type=button onClick="whatURL()" value="Go">
</FORM>
</body>
Scusate, potete chiudere