function navi(i) {
  var cookie_nimi = 'SAK.FI - archive_'+i+'';
	var e = document.getElementById(i);
	
	if (e.className=='year_open') {
		e.className='year_closed';
		putCookie('0', cookie_nimi);
	} else {
		e.className='year_open';
		putCookie('1', cookie_nimi);
	}
}

function navistart(i) {
	var cookie_nimi = 'SAK.FI - archive_'+i+'';
	var cookie_arvo = getCookie(cookie_nimi);
	var e = document.getElementById(i);
	if (cookie_arvo == cookie_nimi) {
		e.className='year_closed';
	} else if (cookie_arvo == '0') {
		e.className='year_closed';
	} else {
		e.className='year_open';
	}	
}




function getCookie(cookie_name) {
  if(document.cookie) {
    index = document.cookie.indexOf(cookie_name);
    if (index != -1) {
      var start = (document.cookie.indexOf("=", index) + 1);
      var end = document.cookie.indexOf(";", index);
      if (end == -1) {
        var end = document.cookie.length;
      }
      var r = document.cookie.substring(start, end);
      return r;
    }
  }
  return cookie_name;
}
function putCookie(i, cookie_name) {
  if (document.cookie != document.cookie) {
    var index = document.cookie.indexOf(cookie_name);
  } else {
    var index = -1;
  }
  if (index == -1) {
		var date = new Date();
		date.setTime(date.getTime()+(60*60*1000));
		var expires = "; expires="+date.toGMTString();
    document.cookie = cookie_name + "=" + i + expires;
  }
}