function LanguageCodeEng(){
days=30; // number of days to keep the cookie
myDate = new Date();
myDate.setTime(myDate.getTime()+(days*24*60*60*1000));
document.cookie = 'language=ENG; expires=' + myDate.toGMTString();
}

function LanguageCodeTha(){
days=30; // number of days to keep the cookie
myDate = new Date();
myDate.setTime(myDate.getTime()+(days*24*60*60*1000));
document.cookie = 'language=THA; expires=' + myDate.toGMTString();
}