I'm writing a Google Chrome extension which manipulates the current page (basically adds a button).

In my content script, I want to load the Facebook Graph API:

```
$fbDiv = $(document.createElement('div')).attr('id', 'fb-root');
$fbScript = $(document.createElement('script')).attr('src', 'https://connect.facebook.net/en_US/all.js');
$(body).append($fbDiv);
$(body).append($fbScript);

console.log("fbScript: " + typeof $fbScript.get(0));
console.log("fbScript parent: " + typeof $fbScript.parent().get(0));
console.log("find through body: " + typeof $(body).find($fbScript.get(0)).get(0));

```

However, the script doesn't seem to added to `body`. Here's the console log:

```
fbScript: object
fbScript parent: undefined
find through body: undefined

```

Any ideas on what I'm doing wrong?