title: getElementsByTagName('a'); not working?
body: <p>So I do this:</p>
  
  <pre><code>var stuff = document.getElementsByTagName('iframe');
  </code></pre>
  
  <p>Works fine. Then I want to do this:</p>
  
  <pre><code>var other = stuff.getElementsByTagName('a');
  </code></pre>
  
  <p>but it doesn't work. It ends up being undefined. I can do:</p>
  
  <pre><code>var other = document.getElementsByTagName('a');
  </code></pre>
  
  <p>and it's fine. Should I not be able to get all the 'a' in 'iframe'?</p>
  
  <p>Edit: So I don't own the iframe and am now under the impression that I can't access anything the iframe generates which meansI guess I'm screwed.</p>