def set_cities
      @cities = []
      if @xml_doc.root
        @cities.push @xml_doc.root.attributes["away_sname"]
        @cities.push @xml_doc.root.attributes["home_sname"]
      else
        @cities.push 'unknown'
        @cities.push 'unknown'
      end
    end
def set_cities
      @cities = []
      if @xml_doc.root
        @cities.push @xml_doc.root.attributes["away_sname"]
        @cities.push @xml_doc.root.attributes["home_sname"]
      else
        @cities.push 'unknown'
        @cities.push 'unknown'
      end
    end
Sets an array of the city names for the teams playing the game
    [0] = away
    [1] = home