gistfile1.cs

private static HtmlDocument GetHtmlDocument(string url)
        {
            var page = new HtmlDocument
            {
                OptionOutputAsXml = true
            };
            HtmlNode.ElementsFlags.Remove("option");

            // Fetch and load HTML document (default gym selected)
            var request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.UserAgent = UserAgent;
            var response = (HttpWebResponse)request.GetResponse();
            using (var reader = new StreamReader(response.GetResponseStream(), true))
            {
                page.LoadHtml(reader.ReadToEnd());
            }

            return page;
        }