function changlang(tolang) {
	var loc = document.location.href;
	if ( loc.lastIndexOf("/eng/") != -1 ){
		tloc =  loc.replace("/eng/", "/"+tolang+"/");
	}
	if ( loc.lastIndexOf("/tra/") != -1 ){
		tloc =  loc.replace("/tra/", "/"+tolang+"/");
	}
	if ( loc.lastIndexOf("/sim/") != -1 ){
		tloc =  loc.replace("/sim/", "/"+tolang+"/");
	}
	if ( loc.lastIndexOf("/jp/") != -1 ){
		tloc =  loc.replace("/jp/", "/"+tolang+"/");
	}
	if ( loc.lastIndexOf("/sp/") != -1 ){
		tloc =  loc.replace("/sp/", "/"+tolang+"/");
	}
	if ( loc.lastIndexOf("/ru/") != -1 ){
		tloc =  loc.replace("/ru/", "/"+tolang+"/");
	}
	window.location = tloc;
}