jquery 简单的banner轮播实例

<code class="language-html">

    <title>无标题页</title>
    <script src="js/jquery-2.1.4.js" type="text/javascript"></script>
    <style type="text/css">
        .clear{overflow:hidden; clear:both; width:0px; height:0px; }
        .imgbox{width:640px; margin:0 auto; text-align:center; }
        ul{padding:0px; margin:0px;}
        ul li{float:left; list-style:none; }
        ul li.select{display:block;}
        .imgnum span{border-radius:10px; font:normal normal bold 12px/15px 微软雅黑; color:#FFF; margin-left:5px; padding:3px 6px 3px 6px;  background-color:#F90; cursor:pointer;}
        .imgnum span.onselect{background-color:#F00;}
        .imgnum{text-align:center; float:right; margin:-30px 30px; position:relative;}
    </style>


    <div class="imgbox">
            <ul id="banner_img">
                <li><img  src="images/banner1.jpg" alt="jquery 简单的banner轮播实例" ></li>
                <li><img  src="images/banner2.jpg" alt="jquery 简单的banner轮播实例" ></li>
                <li><img  src="images/banner3.jpg" alt="jquery 简单的banner轮播实例" ></li>
                <li><img  src="images/banner4.jpg" alt="jquery 简单的banner轮播实例" ></li>
                <li><img  src="images/banner5.jpg" alt="jquery 简单的banner轮播实例" ></li>
            </ul>
    <div class="clear"></div>
    <div class="imgnum">
        <span class="onselect">1</span>
        <span>2</span>
        <span>3</span>
        <span>4</span>
        <span>5</span>
    </div>
</div>
<script type="text/javascript">
         var time = "";
         var index = 1;
         $(function () {
             showimg(index);
             //鼠标移入移出
             $(".imgnum span").hover(function () {
                clearTimeout(time);
                var icon=$(this).text();
                $(".imgnum span").removeClass("onselect").eq(icon-1).addClass("onselect");
                $("#banner_img li").hide().stop(true,true).eq(icon-1).fadeIn("slow");
             }, function () {
                index=$(this).text()> 4 ? 1 :parseInt($(this).text())+1;
                time = setTimeout("showimg(" + index + ")", 3000);
             });
         });
 
         function showimg(num) {
             index = num;
             $(".imgnum span").removeClass("onselect").eq(index-1).addClass("onselect");
             $("#banner_img li").hide().stop(true,true).eq(index-1).fadeIn("slow");
             index = index + 1 > 5 ? 1 : index + 1;
             time = setTimeout("showimg(" + index + ")", 3000);
         }
    </script>

</code>