si...in IE funziona perfettamente.

ecco il codice della pagina HTML:
codice:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="javascript">
	function chiudi() {
		window.opener.document.getElementById('foto').value = document.getElementById('filename').value;
		window.close();
	}
</script>
</head>
<body>
	<FORM ACTION="" METHOD="Post" enctype="text/plain" name="form" id="form"> 
        <table width="300" border="0" align="center">
          <tr>
            <td><div align="center">Il file 80PX-ALCANI_METANO_14.PNG &egrave; stato uploadato con successo.</div>
              <div align="center"><a href="#" onClick="chiudi()" class="Link">

            Chiudi</a></div></td>
          </tr>
          <tr>
            <td><div align="center">
                <input name="filename" type="hidden" value="/public/news/small/80px-alcani_metano_14.png">              
            </div></td>
          </tr>
        </table>     
	</FORM>
</body>
</html>