$cookie_id = &random_id;
$cookie = "Set-Cookie: cid=$cookie_id; expires=01-Jan-2020 01:01:01 GMT;\n";

print "Content-type: text/html\n";
print $cookie;
print "\n";

##</code><code>##

Content-type: text/html
Set-Cookie: cid=MbGFp1L0uIGT50BAlb5wovvwT86thIm5; expires=01-Jan-2020 01:01:01 GMT;