$(function() {

	$('#billboard_show').billboard({nav: '#billboard_show_nav', effect: 'show'});
	$('#billboard_fade').billboard({nav: '#billboard_fade_nav', effect: 'fade'});
	$('#billboard_up').billboard({nav: '#billboard_up_nav', effect: 'up'});
	$('#billboard_left').billboard({nav: '#billboard_left_nav', effect: 'left'});
});