jquery 图片幻灯轮换效果

jquery 图片幻灯轮换效果

<div class="fleft main-con" id="focus">

            <div id="banner_bg"></div>

            <div id="banner_info"></div>

            <ul>

                <li class="on">1</li>

                <li>2</li>

                <li>3</li>

                <li>4</li>

                <li>5</li>

            </ul>

            <div id="banner_list">

                <a href="javascript:void(0);"><img src="UpFile/201301/1.jpg" alt="" width="485" height="232" /></a>

                <a href="javascript:void(0);"><img src="UpFile/201301/2.jpg" alt="" width="485" height="232" /></a>

                <a href="javascript:void(0);"><img src="UpFile/201301/3.jpg" alt="" width="485" height="232" /></a>

                <a href="javascript:void(0);"><img src="UpFile/201301/4.jpg" alt="" width="485" height="232" /></a>

                <a href="javascript:void(0);"><img src="UpFile/201301/5.jpg" alt="" width="485" height="232" /></a>

                <a href="javascript:void(0);"><img src="UpFile/201301/6.jpg" alt="" width="485" height="232" /></a>

            </div>

        </div>

#focus {position:relative; width:484px; height:232px; border:1px solid #666; overflow:hidden;}

#banner_list img {border:0px;}

#banner_bg {position:absolute; bottom:0;background-color:#000;height:30px;filter: Alpha(Opacity=30);opacity:0.3;z-index:1000;cursor:pointer; width:478px;}

#banner_info{position:absolute; bottom:0; left:5px;height:22px;color:#fff;z-index:1001;cursor:pointer;}

#banner_text {position:absolute;width:120px;z-index:1002; right:3px; bottom:3px;}

#focus ul {position:absolute;list-style-type:none;filter: Alpha(Opacity=80);opacity:0.8; border:1px solid #fff;z-index:1002; margin:0; padding:0; bottom:3px; right:5px;}

#focus ul li { padding:0px 8px;float:left;display:block;color:#FFF;border:#e5eaff 1px solid;background:#6f4f67;cursor:pointer}

#focus ul li.on { background:#900;}

#banner_list a{position:absolute;}

count=$("#banner_list a").length;

    $("#banner_list a:not(:first-child)").hide();

    $("#banner_info").html($("#banner_list a:first-child").find("img").attr('alt'));

    $("#banner_info").click(function(){window.open($("#banner_list a:first-child").attr('href'), "_blank")});

    $("#focus li").click(function() {

        var i = $(this).text() - 1;

        n = i;

        if (i >= count) return;

        $("#banner_info").html($("#banner_list a").eq(i).find("img").attr('alt'));

        $("#banner_info").unbind().click(function(){window.open($("#banner_list a").eq(i).attr('href'), "_blank")})

        $("#banner_list a").filter(":visible").fadeOut(500).parent().children().eq(i).fadeIn(1000);

        document.getElementById("focus").style.background="";

        $(this).toggleClass("on");

        $(this).siblings().removeAttr("class");

    });

    t = setInterval("showAuto()", 4000);

    $("#focus").hover(function(){clearInterval(t)}, function(){t = setInterval("showAuto()", 4000);});