var domain = 'id-china.com.cn';
function show_ads(pid) {
    document.write("<" + "script type='text/javascript' src='");
    document.write("http://www." + domain + "/adv/adjs?pid=" + pid);
//    if (document.referrer)
//        document.write("&amp;referer=" + escape(document.referrer));
    document.write("'><" + "/script>"); 
}