// Slick
$('#useful-index-bottom').slick
({	slidesToShow: 1,
	slidesToScroll: 1,
	draggable: false,
	infinite: false,
	arrows: false,
	swipe: false,
	adaptiveHeight: true
});

$(document).ready()
{	document.getElementById("useful-pagination-max").innerHTML = $('#useful-index-bottom .slick-track > li').length;
	redoUsefulPagination();
}

function usefulIndexFirst()
{	$('#useful-index-bottom').slick('slickGoTo',0);
	redoUsefulPagination();
}
function usefulIndexLast()
{	$('#useful-index-bottom').slick('slickGoTo',$('#useful-index-bottom .slick-track > li').length-1);
	redoUsefulPagination();
}
function usefulIndexNext()
{	$('#useful-index-bottom').slick('slickNext');
	redoUsefulPagination();
}
function usefulIndexPrev()
{	$('#useful-index-bottom').slick('slickPrev');
	redoUsefulPagination();
}

function redoUsefulPagination()
{	document.getElementById("useful-pagination-num").innerHTML = $('#useful-index-bottom').slick('slickCurrentSlide') + 1;
	return;
}