function open_quiz(){

	quiz_window = window.open ("http://quiz.wada-ama.org/","mywindow","menubar=1,resizable=1,width=870,height=655");
	quiz_window.focus()
	
	return false;
}  

function changeLanguage(newLanguage){

	sURL = window.location.href.replace("/" + sLanguage,"/" + newLanguage);
	window.location.href = sURL;
}