function CHLang(PageLang) {
var wLoc = window.location.href;

if (PageLang == 'FA')
LangURL=wLoc.substring(0,wLoc.length-7)+'.htm'
else if (PageLang == 'EN')
LangURL=wLoc.substring(0,wLoc.length-4)+'-EN.htm'

window.location.replace(LangURL);
}