use CGI::Cookie;
my %cookies = fetch CGI::Cookie;
 my @userinfo;

if(check_login() && not validate_login() )
{
  logout_user();
} else {
  my $sth = $db->prepare("SELECT * FROM sites WHERE webmaster_email='" . $cookies{'email'} . "' AND webmaster_url='" . $cookies{'url'} . "' LIMIT 1");
  $sth->execute() or die "Can't execute statement: $DBI::errstr";  
  $userinfo = $sth->fetchrow_hashref;


  print $userinfo->{'domain'}; # für das Feld domain in der Datenbank
}