jQuery(document).ready(function ($) {
    var $social = $('.social-likes.blog_social');
    var $backToTop = $(".back_to_top");

    // back to top
    if ($backToTop.length) {
        $(document).on('click', ".back_to_top", function () {
            $("html, body").animate({scrollTop: 0}, "slow");
            return false;
        });

        $(window).on('scroll', function () {
            var height = $(window).scrollTop();

            if (height > 300) {
                $backToTop.fadeIn();
            } else {
                $backToTop.fadeOut();
            }
        });
    }

    // social likes
    if ($social.length) {
        $social.socialLikes({
            zeroes: 'yes'
        });
    }
});