Image mouseenter / mouseleave (no fade)

var home =  {

        init:function() {

            $('div#bloc2')
                .children('div')
                .find('img')
                .on('mouseenter',this.mouseenter)
                .on('mouseleave',this.mouseleave);

        },//init

        mouseenter: function() {

            var alt = $(this).attr('alt'); //alt contains the name without .png

            $(this).attr('src',function(){
                return 'assets/img/home/'+alt+'_mouseover.png';
            });

        },//mouseenter

        mouseleave:function(){

            var alt = $(this).attr('alt');

            $(this).attr('src',function(){
                return 'assets/img/home/'+alt+'.png';
            });

        }//mouseleave

    };//home

    home.init();