links.rb

require 'rubygems'
require 'nokogiri'
require 'mechanize'
require 'open-uri'

url = "http://www.rema1000.dk/Default.aspx?ID=83"

doc = Nokogiri::HTML(open(url))
puts "Number of links using Nokogiri: " + doc.search("a").size.to_s

agent = Mechanize.new
page = agent.get(url)
puts "Number of links using mechanize: " + page.search("a").size.to_s