$(window).load(function() {
    $('#slider').nivoSlider({
        effect: 'sliceDown', // Specify sets like: 'fold,fade,sliceDown'
        animSpeed: 250, // Slide transition speed
        pauseTime: 5000, // How long each slide will show
        startSlide: 0, // Set starting Slide (0 index)
        directionNav: false,
        controlNav: false
    });
});