var galleryTop = new Swiper('.gallery-top', {
    // loop:true,
    nextButton: '.history-part .swiper-button-next',
    prevButton: '.history-part .swiper-button-prev',
    //initialSlide :$(".history_year .leftbox .swiper-slide").length,
      loopAdditionalSlides : 1,
      autoplay : false,
      effect : 'coverflow',
      slidesPerView: 2,
      centeredSlides: true,
      autoplayDisableOnInteraction : false,
      coverflow: {
            rotate: 0,
            // stretch:-20,
            // depth: 310,
            stretch:100,
            depth: 0,
            modifier: 2,
            slideShadows : true
        },
         breakpoints:{
            1024: {
                slidesPerView: 1,
                slidesPerGroup: 1,
                coverflow: {
                    rotate: 0,
                    stretch:0,
                    depth: 0,
                    modifier: 0,
                    slideShadows : false
                },
            },
        }
});


if($(window).width()>1024){
    var galleryThumbs = new Swiper('.gallery-thumbs', {
        nextButton: '.gallery-thumbs .swiper-button-next',
        prevButton: '.gallery-thumbs .swiper-button-prev',
        slidesPerView:5,
        centeredSlides: true,
        mousewheelControl: false,
        direction :'vertical',
        //initialSlide :$(".history_year .leftbox .swiper-slide").length,//设定初始化时slide的索引。
        resistanceRatio : 0.3,
        followFinger : true,
        slideToClickedSlide: true,//设置为true则点击slide会过渡到这个slide。
        onTouchMove: function (swiper) {
            his_position();
        },
        onTouchEnd: function (swiper) {
            his_position();
        },
        onSlideChangeStart: function (swiper) {
            his_position();
        },
        onInit: function(swiper){
            his_position();
        }

    });
    galleryTop.params.control = galleryThumbs;
    galleryThumbs.params.control = galleryTop;


    $(".ie9 .swiper-button-next,.ie9 .swiper-button-prev").click(function(){
        his_position();
    })
}else{
    var galleryThumbs = new Swiper('.gallery-thumbs', {
        nextButton: '.gallery-thumbs .swiper-button-next',
        prevButton: '.gallery-thumbs .swiper-button-prev',
        slidesPerView:4,
        centeredSlides: true,
        mousewheelControl: false,
        //initialSlide :$(".history_year .leftbox .swiper-slide").length,//设定初始化时slide的索引。
        
        followFinger : true,
        slideToClickedSlide: true

    });
    galleryTop.params.control = galleryThumbs;
    galleryThumbs.params.control = galleryTop;
}


function his_position() {
    $(".gallery-thumbs .swiper-slide").removeClass("prev_nth2Mode next_nth2Mode prev_nth3Mode next_nth3Mode prev_nth4Mode next_nth4Mode prev_nth5Mode next_nth5Mode prev_nth6Mode next_nth6Mode");
    $(".gallery-thumbs .swiper-slide-active").prev().addClass("prev_nth2Mode");
    $(".gallery-thumbs .swiper-slide-active").next().addClass("next_nth2Mode");
    $(".gallery-thumbs .swiper-slide-active").prev().prev().addClass("prev_nth3Mode");
    $(".gallery-thumbs .swiper-slide-active").next().next().addClass("next_nth3Mode");
    $(".gallery-thumbs .swiper-slide-active").prev().prev().prev().addClass("prev_nth4Mode");
    $(".gallery-thumbs .swiper-slide-active").next().next().next().addClass("next_nth4Mode");
    $(".gallery-thumbs .swiper-slide-active").prev().prev().prev().prev().addClass("prev_nth5Mode");
    $(".gallery-thumbs .swiper-slide-active").next().next().next().next().addClass("next_nth5Mode");
    $(".gallery-thumbs .swiper-slide-active").prev().prev().prev().prev().prev().addClass("prev_nth6Mode");
    $(".gallery-thumbs .swiper-slide-active").next().next().next().next().next().addClass("next_nth6Mode");
}