title: How do I make Greasemonkey do something when an AJAX call returns?
body: <p>On YouTube, when I click <code>trending</code> it makes an AJAX call to fetch the trending videos.</p>
  
  <p>Now, I've made a script that will remove any videos that I've already seen.</p>
  
  <p>That script works fine for the frontpage, but I want the script to also be executed when I click <code>trending</code>.</p>