def get_highreslink(bibl_uuid, image_id)
      url = "#{@server_url}/items/#{bibl_uuid}.json?per_page=500"
      json = self.get_json(url)
      
      highreslink = nil

      json["nyplAPI"]["response"]["capture"].each do | capture|
        if capture["imageID"] == image_id
          highreslink = capture["highResLink"]
          break 
        end #if
      end if json["nyplAPI"]["response"]["numResults"].to_i > 0 

      return highreslink
    end
def get_highreslink(bibl_uuid, image_id)
      url = "#{@server_url}/items/#{bibl_uuid}.json?per_page=500"
      json = self.get_json(url)
      
      highreslink = nil

      json["nyplAPI"]["response"]["capture"].each do | capture|
        if capture["imageID"] == image_id
          highreslink = capture["highResLink"]
          break 
        end #if
      end if json["nyplAPI"]["response"]["numResults"].to_i > 0 

      return highreslink
    end
get highreslink from an item, matching up the image idi
since some bibliographic items may have many maps under them