jacascript 換語系不換頁

<script language="javascript"> //換語系不換頁
    function changeasp(language) {
        var LSA = location.pathname;
        //取出陣列的最後一項即為目前檔名
var gurl=split(LSA,'_');
var CFN=LSA.replace(gurl[0],language);

        //if (language == "tw") {
        //    var CFN = LSA.replace(/eng_/, "tw_")
        //}
        //else {
        //    var CFN = LSA.replace(/tw_/, "eng_")
        //}
        location.href = CFN;
    }
</script>
<li><a href="javascript:changeasp('tw');">中文繁體</a></li>
<li><a href="javascript:changeasp('eng');">English</a></li>

以上為簡易的網站語系切換