var flickerFire = 1;

    function flicker() {

if (!flickerFire) return false;

TweenMax.to(".filtered, .main-error-demo", 2, {


className: "+=glowing",


        opacity: 1,
            ease: RoughEase.ease.config({
                template: Power0.easeNone,
                strength: 2,
                points: 20,
                taper: "none",
                randomize: true,
                clamp: true
            }),
            repeat: 1,
            yoyo: true,
            onComplete: flicker
        });
    };

    flicker();