一款JS感应鼠标横向左右切换的焦点图切换效果

<!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=utf-8" />
    <title>一款JS感应鼠标横向左右切换的焦点图切换效果丨石家庄欧美家具|石家庄二手家具回收</title>
    <style type="text/css">
    * { padding: 0; margin: 0; }
    li { list-style: none; }
    body { background: #f6f9fc; }
    div { width: 420px; height: 240px; border: 1px solid #ccc; margin: 50px auto 0; overflow:hidden; }
    ul { width: 2100px; height: 240px; }
    ul li { width: 22px; height: 240px; float: left; position: relative; overflow:hidden; }
    .active { width: 320px; }
    ul span { width: 21px; height: 239px; padding-top: 10px; border-right: 1px solid #fff; position: absolute; top: 0; right: 0; color: #fff; font-size: 12px; text-align: center; cursor: pointer; }
    ul img { width: 320px; height: 240px; }
    .bg0 { background: #00FFCC; }
    .bg1 { background: #636363; }
    .bg2 { background: #3d7fbb; }
    .bg3 { background: #5ca716; }
    .bg4 { background: #f28b24; }
    .bg5 { background: #7c0070; }
    </style>
    <script type="text/javascript">
    var g_aLis = [];
    var g_aBtns = [];
    var g_oTimer = null;
    var g_minWidth = 22;
    window.onload = function() {
    var a = document.getElementById(show1);
    var i = 0;
    g_aLis = a.getElementsByTagName(li);
    g_aBtns = a.getElementsByTagName(span);
    for (i = 0; i < g_aBtns.length; i++) {
    g_aBtns[i].index = i;
    g_aBtns[i].onmouseover = function() {
    gotoImg(this.index)
    }
    }
    };
    function gotoImg(a) {
    if (g_oTimer) {
    clearInterval(g_oTimer)
    }
    g_oTimer = setInterval("changeWidthInner(" + a + ")", 35)
    }
    function changeWidthInner(a) {
    var b = document.getElementById(show1);
    var c = 420;
    var w = 0;
    var d = true;
    var i = 0;
    for (i = 0; i < g_aLis.length; i++) {
    if (i == a) {
    continue
    }
    if (g_minWidth == g_aLis[i].offsetWidth) {
    c -= g_aLis[i].offsetWidth;
    continue
    }
    d = false;
    speed = Math.ceil((g_aLis[i].offsetWidth - g_minWidth) / 10);
    w = g_aLis[i].offsetWidth - speed;
    if (w <= g_minWidth) {
    w = g_minWidth
    }
    g_aLis[i].style.width = w + px;
    c -= w
    }
    g_aLis[a].style.width = c + px;
    if (d) {
    clearInterval(g_oTimer);
    g_oTimer = null
    }
    }
    </script>
    </head>
    <body>
    <div>
    <ul id="show1">
    <li class="active">
    <span class="bg0">这是第一个</span>
    <img src="/images/m01.jpg">
    </li>
    <li>
    <span class="bg1">这是第二个</span>
    <img src="/images/m02.jpg">
    </li>
    <li>
    <span class="bg2">这是第三个</span>
    <img src="/images/m03.jpg">
    </li>
    <li>
    <span class="bg3">这是第四个</span>
    <img src="/images/m04.jpg">
    </li>
    <li>
    <span class="bg4">这是第五个</span>
    <img src="/images/m05.jpg">
    </li>
    <li>
    <span class="bg5">这是第六个</span>
    <img src="/images/m06.jpg">
    </li>
    </ul>
    </div>
    </body>
    </html>
    <br><br><hr>
    

 

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