非阻塞动态加载百度广告的实践

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8" />
<title>广告代码最后加载</title>
</head>

<body>
<div id="open"></div>
<script>
//ad("open",'alert("ddd")');
var JSScript = {
    inject:function (htmlId,jsCode){
        var script = document.createElement("script");
        script.text = jsCode;
        document.getElementById(htmlId).appendChild(script);
    },
    loading:function (url,charset,callback){
        var script = document.createElement("script");
        script.src = url;
        script.charset = charset;
        script.loaded= false;
        script.onload = function(){
            script.loaded = true;
            callback();
        };
        script.onreadystatechange = function(){
            if(!script.onloadDone && ("loaded"==script.readyState || "complete"==script.readyState)){
                script.onload();
            }
        };
        document.getElementsByTagName("head")[0].appendChild(script);
    }
}

JSScript.loading("http://cbjs.baidu.com/js/s.js","gb2312",initAd)
function initAd(){
    JSScript.inject("open",'BAIDU_CLB_singleFillSlot("72893")');                                                      
}
</script>
</body>
</html>

posted @ 2010-11-12 00:27  rentj  阅读(477)  评论(0编辑  收藏  举报