# File lib/tapkit/control/notification.rb, line 8
                def add( observer, symbol, name, object = nil )
                        regist          = {}
                        regist[:symbol] = symbol
                        regist[:name]   = name
                        regist[:object] = object

                        unless @observers[observer] then
                                @observers[observer] = [regist]
                        else
                                unless @observers[observer].include? regist then
                                        @observers[observer] << regist
                                end
                        end
                end