摘自百度的图片轮换效果代码- Javascript - 软晨网（RuanChen.com）

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Javascript 中的摘自百度的图片轮换效果代码

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-10-12 浏览: 1506 ::

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用javascript实现的不错的一款网页选项卡用javascript实现旋转图片效果的代码

这是一个网页设计中经常会用到的图片特效，实现多个图片之间的轮换，并分别带有连接，以前的代码只能适用于IE，在FF下始终没有得到很好的解决，今天意外的在百度联盟首页上看到这样的效果，支持FF，收藏起来备用。

点击运行可以看到效果:

<script>
var links = new Array();
links[1] = "http://tongji.baidu.com";
links[2] = "http://hi.baidu.com/bdadd/blog/item/6f9f80b12e50cf57092302e3.html";
links[3] = "http://union.baidu.com/promo/dataunion/index.html";
links[4] = "http://www.umaz.cn";
var imgs = new Array();
for(var n = 1; n <= 5; n++) imgs[n] = new Image();
imgs[1].src = "/upload/tech/20091012/20091012085729_e0c641195b27425bb056ac56f8953d24.gif";
imgs[2].src = "/upload/tech/20091012/20091012085732_2afe4567e1bf64d32a5527244d104cea.jpg";
imgs[3].src = "/upload/tech/20091012/20091012085737_94c7bb58efc3b337800875b5d382a072.jpg";
imgs[4].src = "/upload/tech/20091012/20091012085738_0ff8033cf9437c213ee13937b1c4c455.jpg";
var tits = new Array();
tits[1] ="百度统计";
tits[2] = "联盟杯摄影师大赛";
tits[3] = "百度行业报告";
tits[4] = "联盟志";
var imgwidth = 550;//图片宽度
var imgheight = 134;//图片宽度
var str = "<style type='text/css'>";
str += "#imgnv{display:none;position:absolute;bottom:-1px;right:0;height:16px;}#imgnv div{float:left;margin-right:1px;}";
str += "#imgnv div.on,#imgnv div.off{margin-bottom:1px;width:30px;height:15px;line-height:18px!important;line-height:15px;font-size:9px;text-align:center;cursor:pointer;cursor:hand}";
str += "#imgnv div.on{background:#CE0609;color:#FFF;font-weight:bold}";
str += "#imgnv div.off{background:#323232;color:#FFF;text-decoration:none}";
str += "#titnv{margin-top:3px;color:#000;text-align:center;display:none;}";
str += "</style>";
str += "<div style='position:relative'>";
str += "<div><img id='dimg' src='" + imgs[1].src + "' border='0' width='" + imgwidth + "' height='"+imgheight+"' style='filter:Alpha(opacity=100)'
//修改点1：循环添加内层div内容以增加个数
str += "<div id='imgnv'><div id='it1' class='on' onmouseover='ImgSwitch(1, true)' onmouseout='Pause(false)'>1</div><div id='it2' class='off' onmouseover='ImgSwitch(2, true)' onmouseout='Pause(false)'>2</div><div id='it3' class='on' onmouseover='ImgSwitch(3, true)' onmouseout='Pause(false)'>3</div><div id='it4' class='off' onmouseover='ImgSwitch(4, true)' onmouseout='Pause(false)'>4</div></div>";
str += "<div id='titnv'><b>" + tits[1] + "</b></div>";
str += "</div>";
document.write(str);
var oi = document.getElementById("dimg");
var pause = false;
var curid = 1;
var lastid = 1;
var sw = 1;
var opacity = 100;
var speed = 15;
var delay = (document.all)? 400:700;
function SetAlpha(){
if(document.all){
if(oi.filters && oi.filters.Alpha) oi.filters.Alpha.opacity = opacity;
}else{
oi.style.MozOpacity = ((opacity >= 100)? 99:opacity) / 100;
}
}
function ImgSwitch(id, p){
if(p){
pause = true;
opacity = 100;
SetAlpha();
}
oi.src = imgs[id].src;
document.getElementById("dlink").href = links[id];
document.getElementById("it" + lastid).className = "off";
document.getElementById("it" + id).className = "on";
document.getElementById("titnv").innerHTML = "<b>" + tits[id] + "</b>";
curid = lastid = id;
}
function ScrollImg(){
if(pause && opacity >= 100) return;
if(sw == 0){
opacity += 2;
if(opacity > delay){ opacity = 100; sw = 1; }
}
if(sw == 1){
opacity -= 3;
if(opacity < 10){ opacity = 10; sw = 3; }
}
SetAlpha();
if(sw != 3) return;
sw = 0;
curid++;
//修改点2：这里的4也是个数
if(curid > 4) curid = 1;
ImgSwitch(curid, false);
}
function Pause(s){
pause = s;
}
function StartScroll(){
setInterval(ScrollImg, speed);
}
function CheckLoad(){
if (imgs[1].complete == true && imgs[2].complete == true) {
clearInterval(checkid);
setTimeout(StartScroll, 2000);
}
}
var checkid = setInterval(CheckLoad, 10);
</script>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

用javascript实现的不错的一款网页选项卡用javascript实现旋转图片效果的代码

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