$(window).load(function() {
            $('#slider').nivoSlider({
            effect:'fade',
            slices:15,
            animSpeed:500,
            pauseTime:5000,
            directionNav:false, //Next & Prev
            directionNavHide:false, //Only show on hover
            controlNav:true, //1,2,3...
            pauseOnHover:true, //Stop animation while hovering
            manualAdvance:false, //Force manual transitions
            beforeChange: function(){},
            afterChange: function(){}
                });
            });