Mount fade out for Habitica (formerly HabitRPG)

mount_fade_out.user.js

// ==UserScript==
// Sources: http://stackoverflow.com/questions/2246901/how-can-i-use-jquery-in-greasemonkey-scripts-in-google-chrome
// @name         Mount Fader
// @namespace    habiticaMountFader
// @include      https://habitica.com/*
// @author       Tom Apicella (jquery by Erik Vergobbi Vold & Tyler G. Hicks-Wright)
// @description  This userscript fades out your mount when you mouse over your hero
// ==/UserScript==

// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {
  var script = document.createElement("script");
  script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js");
  script.addEventListener('load', function() {
    var script = document.createElement("script");
    script.textContent = "window.jQ=jQuery.noConflict(true);(" + callback.toString() + ")();";
    document.body.appendChild(script);
  }, false);
  document.body.appendChild(script);
}

// the guts of this userscript
function main() {
  // Note, jQ replaces $ to avoid conflicts.
  jQ(".herobox").hover(function(){
    jQ(this).find("[class*=Mount_Head],[class*=Mount_Body]").delay(400).fadeTo("slow", 0.3); 
  }, function(){
    jQ(this).find("[class*=Mount_Head],[class*=Mount_Body]").fadeTo("fast", 1.0);
  });  
}

// load jQuery and execute the main function
addJQuery(main);