Script Summary: This script just restricts the search results to the audio type only.
Note, this script is a highly specific, one-off, on request.
It is not meant to be a robust utility for every need; modify it as you see fit.
On Fizy.com, the search results will be automatically filtered to audio format only.
However, if the user clicks on "video" or "all" formats, this behavior will be turned off.
Clicking on "audio" format will turn the auto filtering back on.
