public void LoginAsync(string username, string password, ref System.Net.CookieContainer cookies)
{
Console.WriteLine ("Login LinkedIn");
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create ("https://www.livecoding.tv/accounts/linkedin/login");
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.0.3705)";
request.CookieContainer = cookies;
request.BeginGetResponse (EndGetResponse,new object[]{request,username,password,cookies});
}