# File ./roster.rb, line 255
    def [](jid)
      if jid.kind_of? String
        jid = JID.new(jid) 
        jid.strip_resource
      elsif jid.kind_of? JID
        jid = JID.new(jid.node+"@"+jid.host)
      else
        return
      end
      return @map[jid.to_s]
    end