use MD5 ;
	
my $md5 = new MD5 ;
$md5->reset ;

my $yday = (localtime)[7];

# create certificate / session id
my $certif = $user . $yday .  "do4k.g0" . $ENV{'HTTP_USER_AGENT'}  .  $ENV{'REMOTE_ADDR'} ;

# encrypt certificate
$md5->add($certif);
my $enc_cert = $md5->hexdigest() ;

# set cookie
print "Set-Cookie: SESSION=$enc_cert; path=/\n" ;
print "Set-Cookie: NAME=$user; path=/\n"  ;

# and continue
print "Content-type: text/html\n\n"  ;
print "Your logged In!"  ;