非阻塞动态加载javascript广告实现代码

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我是靠谱客的博主漂亮冥王星，最近开发中收集的这篇文章主要介绍非阻塞动态加载javascript广告实现代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

复制代码代码如下:

 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; 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); 
}, 
loadeing: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.loadeing("http://cbjs.baidu.com/js/s.js","gb2312",initAd) 
function initAd(){ 
JSScript.inject("open",'BAIDU_CLB_singleFillSlot("72893")'); 
} 
</script> 
</body> 
</html> 