function picture_delete(div, key, lang) {
  var ajax = new Ajax.Updater(div, '/api/member/'+ key +'_delete.php', {
    method: 'get',
    parameters: {
      lang: lang
    }
  });
  return false;
}
function idea_delete(div, key, id, lang) {
  var ajax = new Ajax.Updater(div, '/api/member/idea/'+ key +'_delete.php', {
    method: 'get',
    parameters: {
      ideaID: id,
      lang: lang
    }
  });
  return false;
}