在飞行中从外部站点加载js

Question

我想在用户点击按钮时从外部网站加载JS代码。例如：

 <button onclick="LoadJSFromURL('facebook.com/blablabla')" />

当用户按下按钮时，我们将新脚本附加到文档：

<script> Share.WorkUrl="http://MySite.com"; Share.UserId=5 </script> <script src="http://Facebookcom/blabalbal" ></script>

然后我们必须执行这个脚本。这是真的吗？

Answer 1

检查一下：How do you dynamically load a javascript file from different domain?

var script = new Element("script", {src: "myBigCodeLibrary.js", type: "text/javascript"});

script.onload = script.onreadystatechange = function(){
    if (!this.readyState ||
        this.readyState == "loaded" || this.readyState == "complete") {
        //script is loaded
    }
};