function bannerppt(jso) {
    var pptbox = $(jso.box);
    var pptpic = $(jso.pic);
    var sWidth = pptbox.find(".bannerbg img").width(); //鑾峰彇鐒︾偣鍥剧殑瀹藉害锛堟樉绀洪潰绉級
    var sHeight = pptbox.find(".bannerbg img").height(); //鑾峰彇鐒︾偣鍥剧殑楂樺害锛堟樉绀洪潰绉級
    
    var len = pptpic.find("ul li").length; //鑾峰彇鐒︾偣鍥句釜鏁
    var ssss = pptpic.find("ul li img");
    
    var index = 0;
    var picTimer;

    var btn = "<div class='bannerbtn atm5'>";
    for(var i = 0; i < len; i++){
        var sss = $(ssss[i]).attr('src');
		btn += '<span><img src="' + sss + '" /></span>';
	}
    btn += "</div>";
    pptbox.append(btn);

    //涓哄皬鎸夐挳娣诲姞榧犳爣婊戝叆浜嬩欢锛屼互鏄剧ず鐩稿簲鐨勫唴瀹
    pptbox.find(".bannerbtn span").mouseover(function () {
        index = pptbox.find(".bannerbtn span").index(this);
        showPics(index);
    }).eq(0).trigger("mouseover");

    //涓婁竴椤垫寜閽
    pptbox.find(".pre").click(function () {
        index -= 1;
        if (index == -1) { index = len - 1; }
        showPics(index);
    });

    //涓嬩竴椤垫寜閽
    pptbox.find(".next").click(function () {
        index += 1;
        if (index == len) { index = 0; }
        showPics(index);
    });

    //鏈緥涓哄乏鍙虫粴鍔紝鍗虫墍鏈塴i鍏冪礌閮芥槸鍦ㄥ悓涓€鎺掑悜宸︽诞鍔紝鎵€浠ヨ繖閲岄渶瑕佽绠楀嚭澶栧洿ul鍏冪礌鐨勫搴
    pptbox.find("ul").css("width", sWidth * (len) +150 );

    //榧犳爣婊戜笂鐒︾偣鍥炬椂鍋滄鑷姩鎾斁锛屾粦鍑烘椂寮€濮嬭嚜鍔ㄦ挱鏀

    pptbox.hover(function () {
        clearInterval(picTimer);
    }, function () {
        picTimer = setInterval(function () {
            showPics(index);
            index++;
            if (index == len) { index = 0; }
        }, jso.time); //姝?000浠ｈ〃鑷姩鎾斁鐨勯棿闅旓紝鍗曚綅锛氭绉
    }).trigger("mouseleave");

    //鏄剧ず鍥剧墖鍑芥暟锛屾牴鎹帴鏀剁殑index鍊兼樉绀虹浉搴旂殑鍐呭
    function showPics(index) { //鏅€氬垏鎹
        var nowLeft = -index * sWidth; //鏍规嵁index鍊艰绠梪l鍏冪礌鐨刲eft鍊
        var nowTop = -index * sHeight; //鏍规嵁index鍊艰绠梪l鍏冪礌鐨則op鍊
        pptbox.find("ul").stop(true, false).animate({ "left": nowLeft }, 500); //閫氳繃animate()璋冩暣ul鍏冪礌婊氬姩鍒拌绠楀嚭鐨刾osition
        $(".bannerbtn span").removeClass("on").eq(index).addClass("on");
        //pptbox.find(".bannerbtn span").stop(true, false).animate({ "background": "rgba(255,255,255,.5)" }, 1000).eq(index).stop(true, false).animate({ "background": "rgba(255,255,255,1)" }, 1000); //涓哄綋鍓嶇殑鎸夐挳鍒囨崲鍒伴€変腑鐨勬晥鏋
    }
}