gistfile1.js

 _animationOut:function(){
        var self = this;
        var itemCount = images.length;
        var left = this._findLeftElement();
        var itemStart = (left.element.index()-1)*2;

        if(itemStart < 0)
            itemStart = 0;

        var itemEnd = itemStart+12;//12 items von links nach rechts

        if(itemEnd > itemCount)
            itemEnd = itemCount;

        var b=0;

        for(var i=itemCount; i>=0; i--,b++){

            var item = $('.item').eq(i);
            var left = 1400;
            var delayTime = i*0.1;

            if(i>=itemStart && i<=itemEnd){
                TweenMax.to(item,1.1,{delay:delayTime,marginLeft:left,autoAlpha:0});
                if(i === itemStart){
                    var time = delayTime+1.2;
                    TweenMax.delayedCall(time,self._animationOutComplete);
                }
            }else{
                TweenMax.to(item,0,{autoAlpha:0});
            }

        }
    },