5 rooms for nicovideo

The japanese video site "nicovideo" has been split into 5 rooms. One for the home page www.nicovideo.jp and 4 for the videos. Relevant is the first number of the video ID (after the "/watch/sm"). People meet if they watch the same video. But the video watching crowd is distributed over 4 rooms for video ID starting with 0-2, 3-5, 6-7, and 8-9. Also, if the host name starts with anything except "www.", then this is interpreted as a country domain and taken into account. So, de.nicovideo.jp is different from www.nicovideo.jp. Please see the nicovideo.xml.