var ttl;
var lang;
//
function setLanguage(){
	if( window.location.hash !='' ) {
		lang = window.location.hash;
	}else{
		lang = navigator.language || navigator.userLanguage;
	}
	if(lang.indexOf('ja')>=0) document.write('<style type="text/css">.en, .fr { display:none; } .ja { display:block; }</style>');
	else if(lang.indexOf('fr')>=0) document.write('<style type="text/css">.en, .ja { display:none; } .fr { display:block; }</style>');
	else document.write('<style type="text/css">.fr, .ja { display:none; } .en { display:block; }</style>');
	//
	setTimeout(function(){
		setTitle(lang);
	},50);
}
//
function setTitle(str){
	ttl = document.title.split(' | ');
	if(ttl.length>2){
		if(str.indexOf('fr')>-1) document.title = ttl[0] + ' | ' + ttl[2];
		else document.title = ttl[0] + ' | ' + ttl[1];
	}
}
//
function setLang(str){
	var langs = ["ja","en","fr"];
	var onLang = getElementsByClassName(str);
	var offLang = new Array();
	for (var i = 0; i<langs.length; i++) if(langs[i]!=str) new Array().push.apply(offLang,getElementsByClassName(langs[i]));
	for (var i = 0; i<offLang.length; i++) offLang[i].style.display ="none";
	for (var i = 0; i<onLang.length; i++) onLang[i].style.display = "block";
	setTitle(str);
}
//
function getElementsByClassName (className) {
  var children = document.getElementsByTagName('*') || document.all;
  var elements = new Array();
  for (var i = 0; i < children.length; i++) {
    var child = children[i];
    var classNames = child.className.split(' ');
    for (var j = 0; j < classNames.length; j++) {
      if (classNames[j] == className) {
        elements.push(child);
        break;
      }
    }
  }
  return elements;
}


setLanguage();