    # File temp/element.rb, line 901
        def inject( xpath=nil, initial=nil, &block )
          first = true
          XPath::each( @element, xpath ) {|e|
            if (e.kind_of? Element)
              if (first and initial == nil)
                initial = e
                first = false
              else
                initial = yield( initial, e ) if e.kind_of? Element
              end
            end
          }
          initial
        end