Как записать в куки нужные переменные?

loginForm_hf_0=&login=MyTestUser&password=qwerty123&%3Asubmit=%D0%92%D0%BE%D0%B9%D1%82%D0%B8
#######################
{'Origin': 'http://barbars.ru', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'User-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1', 'Connection': 'Keep-Alive', 'Referer': 'http://barbars.ru/login', 'Content-type': 'application/x-www-form-urlencoded'}
#######################
Server: nginx/1.2.1
Date: Mon, 01 Jul 2013 23:20:58 GMT
Content-Type: text/html;charset=UTF-8
Content-Length: 3216
Connection: close
Set-Cookie: JSESSIONID=6E8E40AAB5408C3F14B866F24EBB749C; Path=/
Pragma: no-cache
Cache-Control: no-cache, max-age=0, must-revalidate
Content-Language: en-US
#######################
<cookielib.CookieJar[<Cookie JSESSIONID=6E8E40AAB5408C3F14B866F24EBB749C for barbars.ru/>]>

#!/usr/bin/env python 
# -*- coding: utf-8 -*-
import httplib, cookielib, urllib, urllib2
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
headers = {
    'Origin': 'http://barbars.ru',
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1',
    'Content-Type': 'application/x-www-form-urlencoded', 
    'Connection': 'Keep-Alive', 
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Referer': 'http://barbars.ru/login'
}
data = {
    'login':'MyTestUser',
    'password':'qwerty123',
    'loginForm_hf_0':'',
    ':submit':'Войти'
}
#POST /login/wicket:interface/:13:loginForm::IFormSubmitListener:: HTTP/1.1
data = urllib.urlencode(data) 
req = urllib2.Request('http://barbars.ru/login', data, headers) 
response = opener.open(req)
print data
print "#######################"
print req.headers
print "#######################"
print response.headers
print "#######################"
print cj

req = urllib2.Request('http://barbars.ru/login/wicket:interface/:0:loginForm::IFormSubmitListener::;jsessionid=4E665AA5378128CFCAD4557234BBB714', data, headers)

headers = {"User-Agent":"Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.9.2.6) Gecko/20100628 Ubuntu/10.04 (lucid) Firefox/3.6.6", "Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"}