Productions.js trouble

(function(){

    var productions = {

        init: function() {

            this.iso();
            this.fetch();

            $('.prod').on('mouseenter',this.mouseenter)
                      .on('mouseleave',this.mouseleave);
                      //.on('click',this.dim);
            $('.titre-projet').find('a').on('click',this.dim);
            console.log('after fetch call');


        },// init()


        fetch: function() {

            $.ajax({
                url: '../assets/json/productions.json',
                type: 'GET',
                dataType: 'json',
                success: productions.fetchSucceed,
                error: function(xhr, status, error) {
                    console.log(xhr.status);
                }
            });

            console.log("fetch");

        },

        fetchSucceed: function(data) {

            var template = Handlebars.compile( $('#productions-template').html() );
            var temp = template(data.productions);

            $('#productions').append(temp);
        },



        iso: function() {

            var container = $('#productions');

            // initialize isotope
            container.isotope();

            //On affiche seulement la catégorie selectionnée
            $('ul#rubriques-filters li a').on('click',function() {
                var selector = $(this).data('filter');
                container.isotope({ filter: selector });
                return false;

            });

        },// iso()

        mouseenter: function() {
            //On cache l'image principale pour afficher la descriptions du projet
            $this = $(this);
            $this.find('div.prod-img').animate({'margin-top': '-320px'}, 300);//hide
            $this.find('div.prod-hover').animate({'top': '0'},300);//show

        },// mouseenter()

        mouseleave: function() {

            $this = $(this);
            $this.find('div.prod-img').animate({'margin-top': '0px'}, 250);
            $this.find('div.prod-hover').animate({'top': '320px'},250);

        },// mouseenter()

        dim: function() {

            var dim = $('#dim'),
                video = dim.find('.dim-video-projet');

            dim.css("height",$(document).height());

            if( dim.is(':hidden') ) {
                $('<iframe src="http://player.vimeo.com/video/55767554?title=0&amp;byline=0&amp;portrait=0&amp;color=ffffff" width="960" height="540" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>')
                .appendTo(video);
                dim.fadeIn(500);
            }

            dim.find('img').on('click',function(){
                if( dim.is(':visible') ) {
                    dim.fadeOut(500);
                    video.empty();
                }
            });



            return false;
        }


    };

    productions.init();


})();