Shufflescript

$(window).on('load', function () {

            $('.portfolio-container').each(function(i, e){

                var ttGrid = $(this).find('.portfolio');
                var self = this;
                ttGrid.shuffle({
                    itemSelector: '.portfolio-item' // the selector for the items in the grid
                });

                /* reshuffle when user clicks button filter item */
                $(this).find('.portfolio-filter li').on('click',function (e) {
                    e.preventDefault();

                    // set active class
                    $(self).find('.portfolio-filter li').removeClass('active');
                    $(this).addClass('active');

                    // get group name from clicked item
                    var ttGroupName = $(this).attr('data-group');

                    // reshuffle grid
                    ttGrid.shuffle('shuffle', ttGroupName);
                });

            });

        });