$(window).load(function() {
	$('#slider').nivoSlider({
		effect:'sliceDown',
		slices:15,
		animSpeed:500,
		pauseTime:5000,
		directionNav:false, 
		directionNavHide:false, 
		controlNav:false,
		pauseOnHover:false, 
		beforeChange: function(){},
		afterChange: function(){}
	});
});