本代碼來(lái)自于懶人圖庫(kù),本站只是對(duì)其代碼進(jìn)行分析并解釋,并標(biāo)注了源代碼的來(lái)源,本次是對(duì)縱向的相冊(cè)效果進(jìn)行分析.
注明:源文件來(lái)源于懶人圖庫(kù)(便于代碼簡(jiǎn)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(cè)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" align="center" cellpadding="0" cellspacing="5">
<tr>
<td height="75" colspan="2" align="left" class="txt_1">縱向的JS相冊(cè)效果</td><!--<網(wǎng)站制作學(xué)習(xí)網(wǎng)Foasp.cn>-->
</tr>
<tr>
<td width="640" align="center"><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(gè)大圖--></td>
<td width="110" align="center" 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(gè)圖片
<img src="images/02.jpg" width="80" height="50" border="0" class="thumb_img" rel="images/02.jpg" link="URL" /><!--設(shè)置rel后圖片可以有l(wèi)ink的連接,點(diǎn)擊直接跳轉(zhuǎn)-->
</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 $(e) {return document.getElementById(e);}//定義獲取通過(guò)對(duì)象
document.getElementsByClassName = function(cl) {//定義document的通過(guò)ClassName來(lái)獲得對(duì)象數(shù)組
var retnode = [];//定義空數(shù)組
var myclass = new RegExp(cl);//通過(guò)正則上面?zhèn)鱽?lái)的cl值來(lái)判斷對(duì)象
var elem = this.getElementsByTagName('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].className;//如果classname符合正則則添加到定義的空數(shù)組
if (myclass.test(classes)) retnode.push(elem[i]);
}
return retnode;//最后返回?cái)?shù)組
}
var MyMar;
var speed = 1; //速度，越大越慢
var spec = 1; //每次滾動(dòng)的間距, 越大滾動(dòng)越快
var ipath = 'images/'; //圖片路徑
var thumbs = document.getElementsByClassName('thumb_img');//獲取以"thumb_img"的數(shù)組
for (var i=0; i<thumbs.length; i++) {
thumbs[i].onmouseover = function () {$('main_img').src=this.rel; $('main_img').link=this.link;};//循環(huán)對(duì)對(duì)象進(jìn)行附加事件
thumbs[i].onclick = function () {location = this.link}
}
$('main_img').onclick = function () {window.open(this.link);}//對(duì)中間的大圖進(jìn)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(shè)定鼠標(biāo)移動(dòng)到上下按鈕時(shí),圖片的整體滾動(dòng)<網(wǎng)站制作學(xué)習(xí)網(wǎng)Foasp.cn>
function gobottom() {$('showArea').scrollTop+=spec;}
</script>
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