图片幻灯片轮播实现-优快云博客

<!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>
<title> 经典的图片幻灯</title>
<style type="text/css">
.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-

family:Verdana, Arial, Helvetica, sans-serif;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; font-family:Arial, Helvetica, sans-serif;}
.b1,.b2{background-color:#666666;display:block;float:left;padding:2px 6px;margin-right:3px;color:#FFFFFF;text-decoration:none;cursor:pointer;}
.b2{color:#FFCC33;background-color:#FF6633;}
</style>


<script language="javascript" type="text/javascript">
var s=function(){
var interv=2500; //切换间隔时间
var interv2=15; //切换速速
var opac1=80; //文字背景的透明度
var source="fade_focus" //图片容器id
//获取对象
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.onclick=function()

{clearTimeout(timer);

clearTimeout(timer2);

clearTimeout(timer3);

j=parseInt(this.innerHTML)-1;

scton=0;

t=63;

opac=0;

fadeon();};

a.className="b1";

a.onmouseover=function(){this.className="b2"};

a.onmouseout=function(){this.className="b1";sc(j)};

button.appendChild(a);}
// 控制透明度
function alpha(obj,n)

{if(document.all)

{obj.style.filter="alpha(opacity="+n+")";}

else{obj.style.opacity=(n/100);}}
//控制焦点按钮
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);
//渐显
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);};}
// 渐隐
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()};}
// 滚动文字
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.onload=s;
</script>
</head>

<body>
<div id="fade_focus">
<div class="loading">Loading...<br /><img src="/jscss/demoimg/loading.gif"></div>
<ul>
// 注意你存放图片的链接地址
<li><img src="C:/Documents and Settings/All Users/Documents/My Pictures/image/01.jpg" width="443" height="209" alt="图片焦点切换第一张文字" /></li>
<li><img src="C:/Documents and Settings/All Users/Documents/My Pictures/image/02.jpg" width="443" height="209" alt="图片焦点切换第二张文字" /></li>
<li><img src="C:/Documents and Settings/All Users/Documents/My Pictures/image/03.jpg" width="443" height="209" alt="图片焦点切换第三张文字" /></li>
<li><img src="C:/Documents and Settings/All Users/Documents/My Pictures/image/04.jpg" width="443" height="209" alt="图片焦点切换第四张文字" /></li>
<li><img src="C:/Documents and Settings/All Users/Documents/My Pictures/image/05.jpg" width="443" height="209" alt="图片焦点切换第五张文字" /></li>
</ul>
</div>
</body>
</html>