Uncaught ReferenceError: object is not defined fade.js:30
    at IsVisible (fade.js:30)
    at AddClass (fade.js:21)
    at HTMLDivElement.<anonymous> (fade.js:12)
    at Function.each (jquery-3.3.1.min.js:2)
    at w.fn.init.each (jquery-3.3.1.min.js:2)
    at WhatAnimation (fade.js:10)
    at fade.js:1