CI SONO RIUSCITA!!!

codice:
<form action="#" method="post" enctype="multipart/form-data" name="form2" onSubmit="MM_callJS('window.location.search')&<php echo $_post['ris']; ?>S">
    <input name="ris" type="text" id="ris">
    <input type="submit" name="Submit" value="Invia"> 
    </form>
codice:
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_callJS(jsStr) { //v2.0
  return eval(jsStr)
}
</script>
codice:
MM_callJS('window.location.search')&<php echo $_post['ris']