本代碼來自于懶人圖庫,本站只是對其代碼進行分析并解釋,并標注了源代碼的來源,本次是對縱向的相冊效果進行分析.
注明:源文件來源于懶人圖庫(便于代碼簡潔,去除了部分懶人的ad)
<!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>縱向的js相冊效果</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 cellpadding=0 cellspacing=5>
<tr>
<td height=75 colspan=2 align=left class=txt_1>縱向的js相冊效果</td><!--<網站制作學習網foasp.cn>-->
</tr>
<tr>
<td width=640><img src=images/03.jpg url width=640 height=400 border=0 id=main_img rel=images/03.jpg link=url /><!--這是展示整個大圖--></td>
<td width=110 valign=top>
<img src=images/gotop.gif width=100 height=14 id=gotop /><!--上邊的按鈕-->
<div id=showarea>
<img src=images/01.jpg width=80 height=50 border=0 class=thumb_img rel=images/01.jpg link=url />
......省略n個圖片
<img src=images/02.jpg width=80 height=50 border=0 class=thumb_img rel=images/02.jpg link=url /><!--設置rel后圖片可以有l(wèi)ink的連接,點擊直接跳轉-->
</div>
<img src=images/gobottom.gif width=100 height=14 id=gobottom /><!--下邊的按鈕--></td>
</tr>
</table>
</body>
</html>
<script language=javascript type=text/javascript>
function $(e) {return document.getelementbyid(e);}//定義獲取通過對象
document.getelementsbyclassname = function(cl) {//定義document的通過classname來獲得對象數(shù)組
var retnode = [];//定義空數(shù)組
var myclass = new regexp(cl);//通過正則上面?zhèn)鱽淼腸l值來判斷對象
var elem = this.getelementsbytagname('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].classname;//如果classname符合正則則添加到定義的空數(shù)組
if (myclass.test(classes)) retnode.push(elem[i]);
}
return retnode;//最后返回數(shù)組
}
var mymar;
var speed = 1; //速度，越大越慢
var spec = 1; //每次滾動的間距, 越大滾動越快
var ipath = 'images/'; //圖片路徑
var thumbs = document.getelementsbyclassname('thumb_img');//獲取以thumb_img的數(shù)組
for (var i=0; i<thumbs.length; i++) {
thumbs[i].onmouseover = function () {$('main_img').src=this.rel; $('main_img').link=this.link;};//循環(huán)對對象進行附加事件
thumbs[i].onclick = function () {location = this.link}
}
$('main_img').onclick = function () {window.open(this.link);}//對中間的大圖進行附加事件
$('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;}//設定鼠標移動到上下按鈕時,圖片的整體滾動<網站制作學習網foasp.cn>
function gobottom() {$('showarea').scrolltop+=spec;}
</script>