图片列表带箭头上下无缝滚动展示特效 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>站长特效_图片列表带箭头上下无缝滚动展示特效_站长特效网</title>
<style type="text/css">
body,div,ul,li{margin:0;padding:0;}
body{background:#052D01;font:12px/1.5 arial;}
#box_wwwzzjs_net{position:relative;width:210px;height:700px;border:1px solid #5E8743;margin:20px;}
#box_wwwzzjs_net div{position:absolute;top:50%;left:50%;width:160px;height:570px;overflow:hidden;margin:-285px 0 0 -80px;}
#box_wwwzzjs_net .up,#box_wwwzzjs_net .down_zzjs__net{position:absolute;left:50%;width:48px;height:48px;z-index:10;cursor:pointer;overflow:hidden;margin-left:-24px;text-indent:-9999px;background:url(/img/20120606wwwzzjsnet_1.jpg) no-repeat;}
#box_wwwzzjs_net .up{top:10px;background-position:0 0;}
#box_wwwzzjs_net .down_zzjs__net{bottom:10px;background-position:0 bottom;}
#box_wwwzzjs_net ul{position:absolute;width:160px;}
#box_wwwzzjs_net li{width:160px;height:190px;list-style:none;text-align:center;}
#box_wwwzzjs_net a{color:#fff;font-weight:700;text-decoration:none;}
#box_wwwzzjs_net img{width:156px;height:156px;display:block;margin-bottom:5px;border:2px solid #ccc;}
</style>
<script type="text/javascript">
//获取id
function $ (id)
{
    return typeof id === "string" ? document.getElementById(id) : id;
}
//获取tagName
function $$ (elem, oParent)
{
    return (oParent || document).getElementsByTagName(elem);
}
//获取class
function $$$ (className, oParent)
{
    var aClass = [];
    var reClass = new RegExp("(//s|^)" + className + "($|//s)");
    var aElem = $$("*", oParent);
    for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
    return aClass
}
//初始化对象
function Roll ()
{
    this.initialize.apply(this, arguments)
}
Roll.prototype =
{
    initialize: function (obj)
    {
        var _this = this;
        this.obj = $(obj);
        this.oUp = $$$("up", this.obj)[0];
        this.oDown = $$$("down_zzjs__net", this.obj)[0];
        this.oList = $$$("list_wwwzzjsnet", this.obj)[0];
        this.aItem = this.oList.children;
        this.timer = null;
        this.iHeight = this.aItem[0].offsetHeight;
        this.oUp.onclick = function ()
        {
            _this.up()
        };
        this.oDown.onclick = function ()
        {
            _this.down()
        }
    },
    up: function ()
    {
        this.oList.insertBefore(this.aItem[this.aItem.length - 1], this.oList.firstChild);
        this.oList.style.top = -this.iHeight + "px";
        this.doMove(0)
    },
    down: function ()
    {
        this.doMove(-this.iHeight, function ()
        {
            this.oList.appendChild(this.aItem[0]);
            this.oList.style.top = 0;
        })
    },
    doMove: function (iTarget, callBack)
    {
        var _this = this;
        clearInterval(this.timer)
        this.timer = setInterval(function ()
        {
            var iSpeed = (iTarget - _this.oList.offsetTop) / 5;
            iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
            _this.oList.offsetTop == iTarget ? (clearInterval(_this.timer), callBack && callBack.apply(_this)) : _this.oList.style.top = iSpeed + _this.oList.offsetTop + "px"
        }, 30)
    }
};
window.onload = function ()
{
    new Roll("box_wwwzzjs_net");
};
</script>
</head>
<body>

<script type="text/javascript" src="http://www.zzjs.net/ad/tc.js"></script>
<div id="box_wwwzzjs_net">
    <span class="up">up</span>
    <span class="down_zzjs__net">down</span>
    <div>
        <ul class="list_wwwzzjsnet">
            <li><a href="javascript:;"><img src="/img/20120606wwwzzjsnet_2.jpg" />站长特效一号图片</a></li>
            <li><a href="javascript:;"><img src="/img/20120606wwwzzjsnet_3.jpg" />站长特效二号图片</a></li>
            <li><a href="javascript:;"><img src="/img/20120606wwwzzjsnet_4.jpg" />站长特效三号图片</a></li>
            <li><a href="javascript:;"><img src="/img/20120606wwwzzjsnet_5.jpg" />站长特效四号图片</a></li>
            <li><a href="javascript:;"><img src="/img/20120606wwwzzjsnet_6.jpg" />站长特效五号图片</a></li>
        </ul>
    </div>
</div>
</body>
</html>

 

posted @ 2016-08-01 08:46  自由无风  阅读(448)  评论(0)    收藏  举报