http://theonion.github.io/fartscroll.js/

fartscroll.js

Everyone farts. And now your web pages can too.

1. Include „fartscroll.js” in your page.
2. Initialize the fartscroll plugin on document.ready:

       // Fart every 400 pixels scrolled in the window
       fartscroll();
   
       // Fart every 800 pixels scrolled
       fartscroll(800);
   
       // Fart every 100 pixels scrolled (probably a bit much)
       fartscroll(100);
   
       // Now I'm just adding more examples to make the page longer
       fartscroll(50);
   
       // SO MANY FARTS
       fartscroll(5);
   
       // I should register fart.io for this
       fartscroll(500);
   
       // I should register fart.io for this
       fartscroll(400);
   
       // Dammit, fart.io is taken
       fartscroll(600);
   
       // Alright, that's probably enough examples
       fartscroll(400);