Where to download FaceBook JavaScript SDK and xd_receiver.htm

I have experience with PHP and JavaScript, but am new to using the FaceBook API. I'm carefully reading through the documentation, but notice thta lot of links within their documentation are broken. For example, the link for http://api.facebook.com/static/xd_receiver.htm is broekn and I need that content to be able to do al开发者_Go百科most anything with the FB API. Seriously, these guys seem to have really dropped the ball with their documentation. Does anyone know where I can get this file and the rest of the JavaScript SDK? Thanks.

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<div id="fb-root"></div>
<script src="//connect.facebook.net/en_US/all.js"></script>
<script>
  FB.init({
    appId  : 'YOUR APP ID',
    status : true, // check login status
    cookie : true, // enable cookies to allow the server to access the session
    xfbml  : true, // parse XFBML
    channelUrl : 'http://WWW.MYDOMAIN.COM/channel.html', // channel.html file
    oauth  : true // enable OAuth 2.0
  });
</script>

The contents of the channel.html file should be this single line:

 <script src="//connect.facebook.net/en_US/all.js"></script>

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You don't necessarily download it yourself so much as load it when you want to use it.

Here's a link to the quickstart

https://developers.facebook.com/docs/javascript/quickstart/v2.0

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Here is the documentation that facebook has for their Javascript SDK. There are some areas that are poor (to put it lightly), but most of it is there, or in the comments/forums created by users