lolbox.duowan.com/pcbox/frontend/js/infohome.js

var curPage = 0;
var pageLen = 6;
var totalLen = $("#new-video li").length;

var V = {
    init : function(){
        V.scrollNews();
        V.triggerTab("hotVd-tab");
    },
    scrollNews : function() {   // 新闻翻滚
        var $scrollNews = $('#scrollNews');
        if (!$scrollNews) return;
        var news = $scrollNews.children(),
            len = news.length,
            cHeight = $scrollNews.height(),
            perHeight = cHeight / len,
            interval = 2000,

            index = 0,//初始记录

            timer = setInterval(function () {

                $scrollNews.animate({
                    top: - (perHeight * index) + "px"
                }, interval / 3)

                if (index === len - 1)
                    index = 0;
                else
                    index++;
            }, interval);
    },
    triggerTab : function(id){  //tab切换
        $ul=$("#"+id);
        $ul.on("click","li",function(){
            var index = $(this).index();
            $(this).addClass("active").siblings().removeClass("active");
            $($(this).attr("data-id")).show().siblings("ul").hide();
            $ul.parent().find(".more").eq(index).show().siblings(".more").hide();
        })
    }
}

var C = {
    init : function(){
        // 最新视频刷新
        $(".col-right").on("click",".refresh",function(){
            ++curPage;

            if(curPage >= totalLen/pageLen){
                curPage = 0;
            }

            $("#new-video li").addClass("u-hide");
            for(var i=0; i<pageLen; i++){
                var $curLi = $("#new-video li").eq(curPage*pageLen+i);
                var $curImg = $curLi.find("img");
                var original = $curImg.attr("data-original");

                if(original){
                    $curImg.removeAttr("data-original").attr("src",original);
                }
                $curLi.removeClass("u-hide");
            }
        });
    }
}

C.init();
V.init();