#php
POST /login.php HTTP/1.0
User-Agent: Opera/9.80 (Windows NT 5.1; U; ru) Presto/2.9.168 Version/11.52
Host: vk.com
Accept: text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/webp, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1
Accept-Language: ru-RU,ru;q=0.9,en;q=0.8
Accept-Encoding: gzip, deflate
Referer: http://vk.com/login.php
Cookie: remixdt=-3600; remixlang=3; remixseenads=1; audio_vol=100; remixflash=11.5.502
Content-Length: 36
Content-Type: application/x-www-form-urlencoded
X-Requested-With: XMLHttpRequest
Content-Transfer-Encoding: binary

op=a_login_attempt&login=Тут логин