Plays very quiet audio in order to prevent Panda Crazy (or other scripts) from being throttled.
Newer versions of Firefox and Chrome will throttle tabs in the background and make scripts like Panda Crazy not work as well. You can move tabs to their own window and keep them visible, but this doesn't work for everyone.
NOTE: In order for this script to work in the current version of Chrome (and maybe Firefox, I don't know), you must click somewhere on the page Panda Crazy is running on for this script to work. You can also press the Enter key (it doesn't matter where, just somewhere on the page). You have to do this every time you open Panda Crazy.