var langsBtn = ['en','b5','gb'];
var langsPath = ['english','chinese','sc'];
var langsId = 0;
for(x in langsBtn){
	if(location.href.search('/'+langsPath[x]+'/')!=-1){
		langsId = x;
	}
}
function changeLang(lang) {
	serverside=""
	x=(window.location+'');
	if (x.match('.cgi')!=null) {
		alert("在搜尋結果內不能轉換語言。")
	}else{
		for(x in langsBtn){
			if(lang==langsBtn[x]){
				location.href = location.href.replace('/'+langsPath[langsId]+'/','/'+langsPath[x]+'/')
			}
		}
	}
}