timelines[i].fromTo(tweenValues[i], 2, { open: 1}, { open: 31, ease:Power0.easeNone, onUpdate:function(){
    var srcCeil = Math.ceil(tweenValues[index].open);
    target.src = './img/experiences/bento/ecrin_anim/ECRIN_000'+ ( srcCeil < 10 ? '0' + srcCeil : srcCeil ) +'.png';
}