_#【广告】

重写document.write

让document.write的广告无阻塞的加载

iframe 调用广告

百度网盟禁止iframe调用

iframe类型广告位代码

Google Adsense在2011年5月也明文禁止了iframe方式的调用，因为放到iframe里的广告很难判断网页内容的相关性，不容易匹配合适的广告，同时，早期也有不少网站主通过iframe放广告的方式进行作弊，产生无效点击，因此Google AdSense就禁止了iframe的调用方式。

但iframe代码存在一部分已知的问题，如下：
1）在系统中修改尺寸无效，需修改线上代码；
2）不支持漂浮与弹窗类型的广告位；
3）广告不支持原窗口打开，已经设置为原窗口打开的广告将在iframe中打开；
4）广告位上投放富媒体类型的广告物料，则无法与主页面的内容进行直接交互；
5）不支持来源域和被访url定位。

优酷：

window.nova_init_hook_ab = function(){
    Nova.addScript("http://html.atm.youku.com/html?v=135978183&u=4336697&s=269470&p=78,79,558,747,753,850,616,771&k="+tags);
}

function setTaoBao44186YK() {

    var _yk_hash = "";

    //获得分类Id
    var _yk_hash = "";
    if (catId != null && typeof (catId) != "undefined") {
        _yk_hash += catId.replace(/[^\d]/g, '');
    }
    _yk_hash += ",";
    //获得二级分类Id
    if (cateStr != null && typeof (cateStr) != "undefined") {
        _yk_hash += cateStr.replace(/[^\d\|]/g, '');
    }
    _yk_hash += ",";
    //获得标签
    if (attrs != null && typeof (attrs) != "undefined") {
        _yk_hash += attrs.replace(/,/g, "|");
    }

    //获得宽窄屏
    var _yk_player_thx = "";
    if (player_thx != null && typeof (player_thx) != "undefined") {
        _yk_player_thx = player_thx;
    } else {
        _yk_player_thx = "0";
    }

    var youku_ad_iframe_44186 = document.getElementById('youku_ad_iframe_44186');

    //player_thx :  默认值为0，代表标屏（4:3）； 1 则代表宽屏（16:9） 
    if (_yk_player_thx == "1") {
        if (youku_ad_iframe_44186) {
            youku_ad_iframe_44186.src = "http://static.atm.youku.com/sunxin/taobao/20110831/taobaox300x250x20110831.html" + "#" + _yk_hash;
        }
    } else {
        if (youku_ad_iframe_44186) {
            youku_ad_iframe_44186.src = "http://static.atm.youku.com/Youku2012/201208/0810/taobao/taobao_iframe.html" + "#" + _yk_hash;
        }
    }
    var youku_ad_44186 = document.getElementById('youku_ad_44186');
    if (youku_ad_44186) {
        youku_ad_44186.style.display = "";
    }

}
var ad_44186 = setTimeout(setTaoBao44186YK, 500);


function setTaoBao47874YK() {
    //获得分类Id
    var _yk_hash = "";
    if (catId != null && typeof (catId) != "undefined") {
        _yk_hash += catId.replace(/[^\d]/g, '');
    }
    _yk_hash += ",";
    //获得二级分类Id
    if (cateStr != null && typeof (cateStr) != "undefined") {
        _yk_hash += cateStr.replace(/[^\d\|]/g, '');
    }
    _yk_hash += ",";
    //获得标签
    if (attrs != null && typeof (attrs) != "undefined") {
        _yk_hash += attrs.replace(/,/g, "|");
    }
    var youku_ad_iframe_47874 = document.getElementById('youku_ad_iframe_47874');
    if (youku_ad_iframe_47874) {
        youku_ad_iframe_47874.src = "http://static.atm.youku.com/sunxin/20111116/taobaox300x100x20111115new.html" + "#" + _yk_hash;
    }
    var youku_ad_47874 = document.getElementById('youku_ad_47874');
    if (youku_ad_47874) {
        youku_ad_47874.style.display = "";
    }
}
var ad_47874 = setTimeout(setTaoBao47874YK, 500);

function ad_div_747() {
    var adcontent = "";
    adcontent = adcontent + "<div align=\"center\" style=\"display:block;\">    <iframe align=\"center,center\" width=\"610\" height=\"100\" scrolling=\"no\" frameborder=\"0\" allowtransparency=\"true\" marginheight=\"0\" marginwidth=\"0\" style=\"margin-bottom:15px;display: block;\" src=\"http:\/\/static.atm.youku.com\/Youku2013\/201302\/0221\/22371\/610-100-under.html\"><\/iframe><\/div>";
    var obj = document.getElementById('ab_747');
    if (!obj || typeof (obj) != 'object' || typeof (adcontent) != 'string') return;
    if (null != adcontent && 0 == adcontent.length) {
        obj.style.display = 'none';
    } else {
        obj.style.display = 'block';
        if (null != adcontent) {
            obj.innerHTML = adcontent;
        }
    }
}
ad_div_747();

function ad_div_753() {
    var adcontent = "";
    adcontent = adcontent + "<div id=\"youku_ad_44186\" align=\"center\" class=\"mod\" style=\" 300px; height: 250px; display: none;\"><iframe scrolling=\"no\" id=\"youku_ad_iframe_44186\" style=\" 300px; height: 250px; border: 0pt none;\" height=\"250\" width=\"300\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" border=\"0\"><\/iframe><\/div>";
    var obj = document.getElementById('ab_753');
    if (!obj || typeof (obj) != 'object' || typeof (adcontent) != 'string') return;
    if (null != adcontent && 0 == adcontent.length) {
        obj.style.display = 'none';
    } else {
        obj.style.display = 'block';
        if (null != adcontent) {
            obj.innerHTML = adcontent;
        }
    }
}
ad_div_753();

function ad_div_850() {
    var adcontent = "";
    adcontent = adcontent + "<div align=\"center\" class=\"mod\" id=\"youku_ad_pip_small\" style=\"display:block;\"><iframe style=\"margin:0px;\" scrolling=\"no\" height=\"100\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" border=\"0\" width=\"610\" src=\"http:\/\/static.atm.youku.com\/Youku2013\/201303\/0314\/22371\/middle_20130314.html\"><\/iframe><\/div>";
    var obj = document.getElementById('ab_850');
    if (!obj || typeof (obj) != 'object' || typeof (adcontent) != 'string') return;
    if (null != adcontent && 0 == adcontent.length) {
        obj.style.display = 'none';
    } else {
        obj.style.display = 'block';
        if (null != adcontent) {
            obj.innerHTML = adcontent;
        }
    }
}
ad_div_850();

function ad_div_616() {
    var adcontent = "";
    adcontent = adcontent + "<div id=\"youku_ad_47874\" align=\"center\" class=\"mod\" style=\" 300px; height: 100px; display: none;\"><iframe scrolling=\"no\" id=\"youku_ad_iframe_47874\" style=\" 300px; height: 100px; border: 0pt none;\" height=\"100\" width=\"300\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" border=\"0\"><\/iframe><\/div>";
    var obj = document.getElementById('ab_616');
    if (!obj || typeof (obj) != 'object' || typeof (adcontent) != 'string') return;
    if (null != adcontent && 0 == adcontent.length) {
        obj.style.display = 'none';
    } else {
        obj.style.display = 'block';
        if (null != adcontent) {
            obj.innerHTML = adcontent;
        }
    }
}
ad_div_616();

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