@H_403_0@本文实例讲述了动态加载js文件的方法。分享给大家供大家参考，具体如下：

<div class="jb51code">
<pre class="brush:js;">
function loadScript(url){
var hd = document.getElementsByTagName('head')[0],js = document.createElement('script');
js.src = url;
js.type = "text/JavaScript";
if(js.addEventListener){
js.addEventListener("load",function(){alert('loaded');},false);
}else if(js.attachEvent){
js.attachEvent("onreadystatechange",function(){
if(js.readyState === "loaded" || js.readyState === "complete"){
alert('loaded');
}
});
}
hd.appendChild(js);
}