$(document).ready(function() {

    $(".billboard-nav").tabs("#billboard-items > div", {
		
		// enable "cross-fading" effect
		effect: 'fade',

		// start from the beginning after the last tab
		rotate: true

	// use the slideshow plugin. It accepts its own configuration
	}).slideshow({
		autoplay: true,
		clickable: false,
		interval: 5000
	});

});