var index ={
    "part1_init":0,
    "part2_init":0,
    "part3_init":0,
    "part4_init":0,
    "part6_init":0,
    init:function(){
        //$("#top-menu").fadeIn("slow");

        var self = this;
        $(document).scroll(function() {
            var scroH = $(document).scrollTop();  //滚动高度
            //var viewH = $(window).height();  //可见高度
           // var contentH = $(document).height();  //内容高度
          //  console.log(scroH);
           //
            if(scroH <=10){
                $("#header").fadeIn("slow");
            }else{
                $("#header").fadeOut("slow");
            }

            if(self.part4_init == 0 && scroH >=0){
                self.part4_init = 1;
                $("#animate2").fadeIn(3000);
            }

            if(self.part1_init == 0 && scroH >=0){
                self.part1_init = 1;

                TweenLite.to("#animate7", 2, {'margin-top':"24px",ease:Power1.easeInOut});
                TweenLite.to("#animate7", 5, {
                    "color":"#000"
                });


                TweenLite.to("#animate2", 2, {
                    'width':"42%",delay:0.3,
                    onComplete: (param) => {
                        gsap.to('#animate8', 1, {
                          autoAlpha: 1,  // autoAlpha 为 1 时元素可见，为 0 时元素 visibility: hidden; ，该选项性能优于 opacity 的变化
                          scale: 1 ,  // 缩放由 0 达到 1
                          transformOrigin: 'center bottom',  // 动画中心

                        });
                    },
                    onCompleteParams: []
                   // ease:Back.easeIn,
                });
                TweenLite.to("#animate2",4,{opacity:1});

            }
            if(self.part2_init == 0 && scroH >=680){
                self.part2_init = 1;
                $("#animate3").fadeIn(2000);
                TweenLite.to("#animate3", 2, {'width': 1230});
            }

            if(self.part3_init == 0 && scroH >=1400){
                self.part3_init = 1;
                TweenLite.to("#animate4", 1, {height: 280});
                TweenLite.to("#animate5", 1.5, {height: 280});
                TweenLite.to("#animate6", 2, {height: 280});
                 $("#animate4").fadeIn(2000);
                 $("#animate5").fadeIn(2000);
                 $("#animate6").fadeIn(2000);
                TweenLite.to("#animate9", 1, {
                    'width':"443px",

                });


            }

          /*

            if (contentH - (scroH + viewH) <= 100){  //距离底部高度小于100px

            }
            if (contentH == (scroH + viewH)){  //滚动条滑到底部啦

            }*/

        });

    },
    'part2-event':function(id){
        $("#part2-pic ul li").removeClass("part2-active")
        //$("#part2-pic ul li:first").addClass("part2-active")
        $("#"+id).parent().addClass("part2-active")
        $(".part2-intor").hide();
        //$(".part2-intor:first").fadeIn();
        $("#"+id+"-intro").fadeIn();
    },
    'part6-event':function(ul_obj){
        $("#part6-con-2 ul li").removeClass("part6-active1");
        $("#part6-con-2 ul li").removeClass("part6-active");
        ul_obj.find("li:first").addClass("part6-active1");
        ul_obj.find("li:last").addClass("part6-active");
        var id = ul_obj.attr("n");
        $("#part6-con-1 img").hide();
        $("#part6-"+id).fadeIn();
    }
}