Fix radio box handling of xhr_benchmark.html to work on IE

R=tyoshino@chromium.org

Review URL: https://codereview.appspot.com/135480043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@838 4ff78f4a-9131-11de-b045-6380ec9940d4
Display config in summary box

R=tyoshino@chromium.org

Review URL: https://codereview.appspot.com/138110043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@839 4ff78f4a-9131-11de-b045-6380ec9940d4
Show user agent in summary box

R=tyoshino@chromium.org

Review URL: https://codereview.appspot.com/134510043

git-svn-id: http://pywebsocket.googlecode.com/svn/trunk@840 4ff78f4a-9131-11de-b045-6380ec9940d4