function displayImage(fileFolderId, filePosition, urlroot) {
  new Ajax.Updater('gallery', urlroot + '?fileFolderId=' + fileFolderId + '&template=ajaxgallery&filePosition=' + filePosition + ';lang=' + lang , {asynchronous:true});
  onCreate: initPreload();
  return false;
}

function initPreload() {
  Element.show('preLoader');
}

function hidePreload () {
  Element.hide('preLoader');
}