<div class="lang">
    <a class="t" href="javascript:;" class="active">繁</a>
    <a class="s" href="javascript:;">简</a>            
</div>

<script type="text/javascript" src="chinese.js"></script>

$('.lang a').click(function(){
    var lang = $(this).attr('class');
    localStorage.setItem("zh_choose", lang);
    zh_tran(lang);
});
if(localStorage.getItem("zh_choose") == 's'){
    zh_tran('s');
}
if(localStorage.getItem("zh_choose") == 't'){
    zh_tran('t');
}

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