# File jabber4r/session.rb, line 554
    def register_iq_filter() 
      @connection.add_filter("iqFilter") do |element|
        if element.element_tag=="iq" then
          element.consume_element
          query=element.query
          h=@iqHandlers[query.attr_xmlns]
          h.call(Jabber::Protocol::Iq.from_element(self,element)) if h
        end
      end
    end