title: Greasemonkey script to work on dynamically loaded posts on Facebook
body: <p>I wrote a Greasemonkey script and it affect the firstly loaded posts on Facebook. 
  but after you scroll down on the feed, the script doesn't work on the newly loaded posts.</p>
  
  <p>Is there a way to re-run the script for those posts, or something like that? can anyone help me?</p>