$(window).load(function() {
	$('#slider').nivoSlider({
		effect:'random',
		slices:15,
		animSpeed:500,
		pauseTime:6000,
		directionNav:false,
		directionNavHide:false,
		controlNav:false,
		pauseOnHover:false,
		beforeChange: function(){},
		afterChange: function(){}
	});
});