index.js
function filterElement(flJson){
  var returnJson = {"photo":{}};
  
  returnJson.photo.title       = flJson.photo.title;
  returnJson.photo.description = flJson.photo.description;
  returnJson.photo.farm        = flJson.photo.farm;
  returnJson.photo.id          = flJson.photo.id;
  returnJson.photo.media       = flJson.photo.media;
  returnJson.photo.secret      = flJson.photo.secret;
  returnJson.photo.server      = flJson.photo.server;
  returnJson.photo.urls        = flJson.photo.urls;
  
  return returnJson;
}
function filterElement(flJson){
  var returnJson = {"photo":{}};
  
  returnJson.photo.title       = flJson.photo.title;
  returnJson.photo.description = flJson.photo.description;
  returnJson.photo.farm        = flJson.photo.farm;
  returnJson.photo.id          = flJson.photo.id;
  returnJson.photo.media       = flJson.photo.media;
  returnJson.photo.secret      = flJson.photo.secret;
  returnJson.photo.server      = flJson.photo.server;
  returnJson.photo.urls        = flJson.photo.urls;
  
  return returnJson;
}
return used element