function setCookie(name, value){
	document.cookie = name + "=" + value
}
function getCookie(name){
	var re=new RegExp(name + "=[^;&]+", "i"); //tao bieu mau tim kiem voi xu ly: i:phan biet chu hoa chu thuong; m:tim tren nhieu dong; g:toan cuc
	if (document.cookie.match(re)) //tim kiem cookie
		return document.cookie.match(re)[0].split("=")[1]; 
		//tra lai gia tri kiem tra lay ra phan tu thu 2 trong mang cat boi dau "="
	return "Cookie nay khong ton tai";
}
function setLanguage(lang){
	setCookie('langguage1',lang);
	//document.getElementById("txtDisplay").value=getCookie('aaa');
    getCookie('langguage1');
	document.frm_languages.submit();
}