var lang_convi;
  if (navigator.userLanguage) // Explorer
    lang_convi = navigator.userLanguage;
  else if (navigator.language) // FF
    lang_convi = navigator.language;
  if (lang_convi == "" || lang_convi != "fr" || lang_convi != "en" ) {
	lang_convi = "fr"; 
	}
  width_convi = '248';
  height_convi = '337';
syndicate_link_convi = '<iframe src="http://www.convivoo.com/' + lang_convi + '/user/syndicate_reservation/' + restaurant_id + '" width="' + width_convi + '" height="' + height_convi + '" frameborder="0" scrolling="no" allowtransparency="yes" style="background-color: transparent"></iframe>';
document.write(syndicate_link_convi);