# File /home/ser/Work/rexml/rexml/xpath.rb, line 232
  def XPath::function( elements, fname, rest )
			args = parse_args( elements, rest )
			Functions.pair = [0, elements.size]
			results = []
			elements.each do |element|
				Functions.pair[0] += 1
				Functions.node = element
				res = Functions.send( fname, *args )
				case res
				when true
					results << element
				when Fixnum
					results << element if Functions.pair[0] == res
				end
			end
			return results
		end