def symbolize_keys hsh
      new_hsh = Hash.new
      
      hsh.each_pair do |k,v|
        v = symbolize_keys v if v.is_a?(Hash)
        new_hsh[k.downcase.to_sym] = v
      end
      
      new_hsh
    end
def symbolize_keys hsh
      new_hsh = Hash.new
      
      hsh.each_pair do |k,v|
        v = symbolize_keys v if v.is_a?(Hash)
        new_hsh[k.downcase.to_sym] = v
      end
      
      new_hsh
    end
symbolizes keys and returns a new hash