function footprint_1606269933(aid, root_dir)
{
    var users_id = getCookie_1606269933('users_id');
    if (!users_id) {
        return false;
    }

    //姝ラ涓€:鍒涘缓寮傛瀵硅薄
    var ajax = new XMLHttpRequest();
    //姝ラ浜孃璁剧疆璇锋眰鐨剈rl鍙傛暟,鍙傛暟涓€鏄姹傜殑绫诲瀷,鍙傛暟浜屾槸璇锋眰鐨剈rl,鍙互甯﹀弬鏁?鍔ㄦ€佺殑浼犻€掑弬鏁皊tarName鍒版湇鍔＄
    ajax.open("post", root_dir+'/index.php?m=api&c=Ajax&a=footprint_save', true);
    // 缁欏ご閮ㄦ坊鍔燼jax淇℃伅
    ajax.setRequestHeader("X-Requested-With","XMLHttpRequest");
    // 濡傛灉闇€瑕佸儚 HTML 琛ㄥ崟閭ｆ牱 POST 鏁版嵁锛岃浣跨敤 setRequestHeader() 鏉ユ坊鍔 HTTP 澶淬€傜劧鍚庡湪 send() 鏂规硶涓瀹氭偍甯屾湜鍙戦€佺殑鏁版嵁锛
    ajax.setRequestHeader("Content-type","application/x-www-form-urlencoded");
    //姝ラ涓堹鍙戦€佽姹?鏁版嵁
    ajax.send('aid='+aid+'&_ajax=1');
    //姝ラ鍥汑娉ㄥ唽浜嬩欢 onreadystatechange 鐘舵€佹敼鍙樺氨浼氳皟鐢
    ajax.onreadystatechange = function () {
        //姝ラ浜 濡傛灉鑳藉杩涘埌杩欎釜鍒ゆ柇 璇存槑 鏁版嵁 瀹岀編鐨勫洖鏉ヤ簡,骞朵笖璇锋眰鐨勯〉闈㈡槸瀛樺湪鐨
        if (ajax.readyState==4 && ajax.status==200) {
            var json = ajax.responseText;  
            var res = JSON.parse(json);
            if (1 == res.code) {
                //鎴愬姛
            }
      銆€}
    }
}

// 璇诲彇 cookie
function getCookie_1606269933(c_name)
{
    if (document.cookie.length>0)
    {
        c_start = document.cookie.indexOf(c_name + "=")
        if (c_start!=-1)
        {
            c_start=c_start + c_name.length+1
            c_end=document.cookie.indexOf(";",c_start)
            if (c_end==-1) c_end=document.cookie.length
            return unescape(document.cookie.substring(c_start,c_end))
        }
    }
    return "";
}