function ftpwindow()
{
        var ftplogin;

        ftplogin=prompt('Please enter your login and password to access the Postel ftp site !','login:password');
        var ftpsite = "ftp://"+ftplogin+"@postel.mediasfrance.org";
        window.open(ftpsite, 'POSTEL_ftp_site', 'toolbar=yes, location=yes, scrollbar=yes, menubar=no, width=700, height=500');

        return;
}