$(function(){
    $('#banner-header-slider').slides({
        preload: true,
        preloadImage: 'img/loading.gif',
        play:7000,
        slideSpeed: 1000,
        hoverPause: true,
        generatePagination: false,
        slideEasing: "easeInOutExpo"
    });
    $('.prev').show();
    $('.next').show();
    $('#banner-header-slider').hover(function(){
        $('.prev').toggleClass('prev-hover');
        $('.next').toggleClass('next-hover');
    });
});