在網頁中，圖片輪播器用得比較多。
效果圖：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style>
.d1 {
width: 443px;
height: auto;
overflow: hidden;
border: #666666 2px solid;
background-color: #000000;
position: relative;
}
.loading{
width: 443px;
border: #666666 2px solid;
background-color: #000000;
color: #FFCC00;
font-size: 12px;
height: 179px;
text-align: center;
padding-top: 30px;
font-weight: bold;
}
.d2 {
width: 100%;
height: 209px;
overflow: hidden;
}
.num_list {
position: absolute;
width: 100%;
left: 0px;
bottom: -1px;
background-color: #000000;
color: #FFFFFF;
font-size: 12px;
padding: 4px 0px;
height: 20px;
overflow: hidden;
}
.num_list span {
display: inline-block;
height: 16px;
padding-left: 6px;
}
img {
border: 0px;
}
ul {
display: none;
}
.button {
position: absolute;
z-index: 1000;
right: 0px;
bottom: 2px;
font-size: 13px;
font-weight: bold;
}
.b1 {
background-color: #666666;
display: block;
float: left;
padding: 2px 6px;
margin-right: 3px;
color: #FFFFFF;
text-decoration: none;
cursor: pointer;
}
.b2 {
display: block;
float: left;
padding: 2px 6px;
margin-right: 3px;
text-decoration: none;
cursor: pointer;
color:#FFCC33;
background-color:#FF6633;
}
</style>
<script language="javascript" type="text/javascript">
//主函數
var s=function(){
var interv=2000; //切換間隔時間
var interv2=10; //切換速度
var opac1=80; //文字背景的透明度
var source="show" //焦點輪換圖片容器的id名稱
//獲取對象
function getTag(tag,obj){
if(obj==null){
return document.getElementsByTagName(tag);
}else{
return obj.getElementsByTagName(tag);
}
}
function getid(id){
return document.getElementById(id);
};
var opac=0,j=0,t=63,num,scton=0,timer,timer2,timer3;
var id=getid(source);
id.removeChild(getTag("div",id)[0]);
var li=getTag("li",id);
var div=document.createElement("div");
var title=document.createElement("div");
var span=document.createElement("span");
var button=document.createElement("div");
button.className="button";
for(var i=0;i<li.length;i++){
var a=document.createElement("a");
a.innerHTML=i+1;
a.οnclick=function(){
clearTimeout(timer);
clearTimeout(timer2);
clearTimeout(timer3);
j=parseInt(this.innerHTML)-1;
scton=0;
t=63;
opac=0;
fadeon();
};
a.className="b1";
a.οnmοuseοver=function(){
this.className="b2";
};
a.οnmοuseοut=function(){
this.className="b1";sc(j);
};
button.appendChild(a);
}
//控制圖層透明度
function alpha(obj,n){
if(document.all){
obj.style.filter="alpha(opacity="+n+")";
}else{
obj.style.opacity=(n/100);
}
}
//控制焦點按鈕
function sc(n){
for(var i=0;i<li.length;i++){
button.childNodes[i].className="b1";
};
button.childNodes[n].className="b2";
}
title.className="num_list";
title.appendChild(span);
alpha(title,opac1);
id.className="d1";
div.className="d2";
id.appendChild(div);
id.appendChild(title);
id.appendChild(button);
//漸顯
var fadeon=function(){
opac+=5;
div.innerHTML=li[j].innerHTML;
span.innerHTML=getTag("img",li[j])[0].alt;
alpha(div,opac);
if(scton==0){
sc(j);
num=-2;
scrolltxt();
scton=1;
};
if(opac<100){
timer=setTimeout(fadeon,interv2);
}else{
timer2=setTimeout(fadeout,interv);
}
};
//漸隱
var fadeout=function(){
opac-=5;
div.innerHTML=li[j].innerHTML;
alpha(div,opac);
if(scton==0){
num=2;
scrolltxt();
scton=1;
}
if(opac>0){
timer=setTimeout(fadeout,interv2);
}else{
if(j<li.length-1){
j++;
}else{
j=0;
}
fadeon();
}
};
//滾動文字
var scrolltxt=function(){
t+=num;
span.style.marginTop=t+"px";
if(num<0 && t>3){
timer3=setTimeout(scrolltxt,interv2);
}else if(num>0 && t<62){
timer3=setTimeout(scrolltxt,interv2);
}else{
scton=0
}
};
fadeon();
}
//初始化
window.οnlοad=s;
</script>
<title>圖片幻燈效果</title>
</head>
<body>
<div id="show">
<div class="loading">Loading...<br /><img src="./images/01.jpg" width="100" height="100" /></div>
<ul>
<li><a href="article/1" target="_blank"><img src="./images/01.jpg" width="443" height="209" alt="展示圖片1" /></a></li>
<li><a href="article/2" target="_blank"><img src="./images/02.jpg" width="443" height="209" alt="展示圖片2" /></a></li>
<li><a href="article/3" target="_blank"><img src="./images/03.jpg" width="443" height="209" alt="展示圖片3" /></a></li>
<li><a href="article/4" target="_blank"><img src="./images/04.jpg" width="443" height="209" alt="展示圖片4" /></a></li>
</ul>
</div>
</body>
</html>轉自互聯網