function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function langCookie(lang,url) {
	// not sure what will happen if cookie is already set.
	
	createCookie('journal_lang',lang,30);
	
	if (url) {
		location.href=url;
	} else {
		location.reload();
	}
	
	// make sure link works for non-js browsers.
}