if my_target.name == 'Automatic'
      agent = request.headers['User-Agent']
      if agent =~ /NT 5\.1/ and agent =~ /MSIE 6\.0/    # xp/ie6
        my_target = targets[1]
      elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7\.0/    # xp/ie7