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Tag:验证,特效,入门,实例,验证,表单,特效,正则表达式,跑马灯,document,函数,代码,getElementByID,菜单,图片,视频教程

Javascript控制图片滚动的效果

文章类别：Javascript | 发表日期:2010-5-31 14:24:12

纵向的，写的第一个版本，没加滤镜
<!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" />
<meta name="Author" content="番茄红了" />
<title>JS相册效果 -- 纵向</title>
<style>
body {background:#000000;margin:20px 0;font:12px Verdana, Arial, Tahoma;text-align:center;vertical-align:middle;color:#FFFFFF}
img {border:none}
.txt_1 {font:bold 24px Verdana, Tahoma;color:#fff}
img.thumb_img {cursor:pointer;display:block;margin-bottom:10px}
img#main_img {cursor:pointer;display:block;}
#gotop {cursor:pointer;display:block;}
#gobottom {cursor:pointer;display:block;}
#showArea {height:355px;margin:10px;overflow:hidden}
.info {color:#666;font:normal 9px Verdana;margin-top:20px}
.info a:link, .info a:visited {color:#666;text-decoration:none}
.info a:hover {color:#fff;text-decoration:none}
</style>
</head>
<body>
<table width="760" border="0" align="center" cellpadding="0" cellspacing="5">
  <tr>
    <td height="75" colspan="2" align="left" class="txt_1">JS相册效果</td>
  </tr>
  <tr>
    <td width="640" align="center"><img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="640" height="400" border="0" id="main_img" rel="http://www.tblog.com.cn/test/images/5.jpg" link="http://www.tblog.com.cn" /></td>
    <td width="110" align="center" valign="top">
    <img src="http://www.tblog.com.cn/test/images/gotop.gif" width="100" height="14" id="gotop" />
    <div id="showArea">
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/3.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/4.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/5.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/3.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/4.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/5.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/3.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/4.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/5.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/3.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/4.jpg" link="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" border="0" class="thumb_img" rel="http://www.tblog.com.cn/test/images/5.jpg" link="http://www.tblog.com.cn" />
    </div>
    <img src="http://www.tblog.com.cn/test/images/gobottom.gif" width="100" height="14" id="gobottom" /></td>
  </tr>
</table>
<center class="info"><a href="http://www.tblog.com.cn" title="番茄's Blog">http://www.tblog.com.cn</a>&nbsp;&nbsp;|&nbsp;&nbsp;Akon&nbsp;By&nbsp;2006/12/26</center>
</body>
</html>
<script language="javascript" type="text/javascript">
function $(e) {return document.getElementById(e);}
document.getElementsByClassName = function(cl) {
    var retnode = [];
    var myclass = new RegExp('\\b'+cl+'\\b');
    var elem = this.getElementsByTagName('*');
    for (var i = 0; i < elem.length; i++) {
        var classes = elem[i].className;
        if (myclass.test(classes)) retnode.push(elem[i]);
    }
    return retnode;
}
var MyMar;
var speed = 1; //速度，越大越慢
var spec = 1; //每次滚动的间距, 越大滚动越快
var ipath = 'http://www.tblog.com.cn/test/images/'; //图片路径
var thumbs = document.getElementsByClassName('thumb_img');
for (var i=0; i<thumbs.length; i++) {
    thumbs[i].onmouseover = function () {$('main_img').src=this.rel; $('main_img').link=this.link;};
    thumbs[i].onclick = function () {location = this.link}
}
$('main_img').onclick = function () {location = this.link;}
$('gotop').onmouseover = function() {this.src = ipath + 'gotop2.gif'; MyMar=setInterval(gotop,speed);}
$('gotop').onmouseout = function() {this.src = ipath + 'gotop.gif'; clearInterval(MyMar);}
$('gobottom').onmouseover = function() {this.src = ipath + 'gobottom2.gif'; MyMar=setInterval(gobottom,speed);}
$('gobottom').onmouseout = function() {this.src = ipath + 'gobottom.gif'; clearInterval(MyMar);}
function gotop() {$('showArea').scrollTop-=spec;}
function gobottom() {$('showArea').scrollTop+=spec;}
</script>

横向的，第二个版本，加了兼容IE、FF、Opera的滤镜效果
<!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=gb2312" />
<meta name="Author" content="番茄红了" />
<title>JS相册效果 -- 横向</title>
<style>
body {background:#000;margin:0;font:12px Verdana;text-align:center;}
#tbody {width:650px;margin:50px auto;}
#mainbody {width:640px;margin:5px;border:1px solid #222;padding:1px}
#mainphoto {cursor:pointer;display:block;}
#goleft {float:left;clear:left;margin:6px 5px 0 3px;}
#goright {float:right;clear:right;margin:6px 3px 0 5px;}
#photos {width:610px;height:54px;line-height:54px;border:1px solid #222;margin:10px 0;overflow:hidden;}
#showArea img {display:block;float:left;margin:1px 0;cursor:pointer;border:1px solid #222}
</style>
</head>
<body>
<div id="tbody">
    <div id="mainbody">
      <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="640" height="400" id="mainphoto" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
    </div>
    <img src="http://www.tblog.com.cn/test/images/goleft.gif" width="11" height="56" id="goleft" />
    <img src="http://www.tblog.com.cn/test/images/goright.gif" width="11" height="56" id="goright" />
    <div id="photos">
      <div id="showArea">
        <!--
          SRC: 缩略图地址
          REL: 大图地址
          NAME: 网址
        -->
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/3.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/4.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/3.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/4.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/3.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/4.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/3.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/4.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/3.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/3.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/4.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/4.jpg" name="http://www.tblog.com.cn" />
        <img src="http://www.tblog.com.cn/test/images/5.jpg" alt="番茄红了..." width="80" height="50" rel="http://www.tblog.com.cn/test/images/5.jpg" name="http://www.tblog.com.cn" />
      </div>
    </div>
</div>
</body>
</html>
<script language="javascript" type="text/javascript">
var browse = window.navigator.appName.toLowerCase();
var MyMar;
var speed = 1; //速度，越大越慢
var spec = 1; //每次滚动的间距, 越大滚动越快
var minOpa = 50; //滤镜最小值
var maxOpa = 100; //滤镜最大值
var spa = 2; //缩略图区域补充数值
var w = 0;
spec = (browse.indexOf("microsoft") > -1) ? spec : ((browse.indexOf("opera") > -1) ? spec*10 : spec*20);
function $(e) {return document.getElementById(e);}
function goleft() {$('photos').scrollLeft -= spec;}
function goright() {$('photos').scrollLeft += spec;}
function setOpacity(e, n) {
    if (browse.indexOf("microsoft") > -1) e.style.filter = 'alpha(opacity=' + n + ')';
    else e.style.opacity = n/100;
}
$('goleft').style.cursor = 'pointer';
$('goright').style.cursor = 'pointer';
$('mainphoto').onmouseover = function() {setOpacity(this, maxOpa);}
$('mainphoto').onmouseout = function() {setOpacity(this, minOpa);}
$('mainphoto').onclick = function() {location = this.getAttribute('name');}
$('goleft').onmouseover = function() {this.src = 'http://www.tblog.com.cn/test/images/goleft2.gif'; MyMar=setInterval(goleft, speed);}
$('goleft').onmouseout = function() {this.src = 'http://www.tblog.com.cn/test/images/goleft.gif'; clearInterval(MyMar);}
$('goright').onmouseover = function() {this.src = 'http://www.tblog.com.cn/test/images/goright2.gif'; MyMar=setInterval(goright,speed);}
$('goright').onmouseout = function() {this.src = 'http://www.tblog.com.cn/test/images/goright.gif'; clearInterval(MyMar);}
window.onload = function() {
    setOpacity($('mainphoto'), minOpa);
    var rHtml = '';
    var p = $('showArea').getElementsByTagName('img');
    for (var i=0; i<p.length; i++) {
        w += parseInt(p[i].getAttribute('width')) + spa;
        setOpacity(p[i], minOpa);
        p[i].onclick = function() {location = this.getAttribute('name');}
        p[i].onmouseover = function() {
            setOpacity(this, maxOpa);
            $('mainphoto').src = this.getAttribute('rel');
            $('mainphoto').setAttribute('name', this.getAttribute('name'));
            setOpacity($('mainphoto'), maxOpa);
        }
        p[i].onmouseout = function() {
            setOpacity(this, minOpa);
            setOpacity($('mainphoto'), minOpa);
        }
        rHtml += '<img src="' + p[i].getAttribute('rel') + '" width="0" height="0" alt="" />';
    }
    $('showArea').style.width = parseInt(w) + 'px';
    var rLoad = document.createElement("div");
    $('photos').appendChild(rLoad);
    rLoad.style.width = "1px";
    rLoad.style.height = "1px";
    rLoad.style.overflow = "hidden";
    rLoad.innerHTML = rHtml;
}
</script>
速度比较慢，没做载入效果，需要等待一下
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