javascrip怎么做图片自动播放？

就是连续放五张图片，他隔几秒就自动显示第二张，接着第三张，
但是他只占一个图片的位
就是在显示第一张的地方隔几秒显示第二张<div id="NewsPic" style="float:left; position:relative;">
    <a title="" href="#" target="_blank"><img class="Picture" src="images/4f2f4a5d-e516-417d-977f-7aabf76b1d22.jpg" alt="a" /></a>
    <a title="" href="#" target="_blank"><img class="Picture" src="images/17e7d7f5-d90d-428e-8654-b4b9f3170a06.jpg" alt="a"/></a>
    <a title="" href="#" target="_blank"><img class="Picture" src="images/b686e7e0-37ec-4aa9-a726-fc40ca3e6fb6.jpg" alt="a"/></a>
    <a title="" href="#" target="_blank"><img class="Picture "src="images/3512c724-bc75-4eeb-aed7-336c1c5729fe.jpg" alt="a"/></a>
</div>

解决方案 »

免费领取超大流量手机卡，每月29元包185G流量+100分钟通话, 中国电信官方发货

用层隐藏和显示使用javascript控制display属性只给默认显示的一个block其他默认为none
用JQUERY可以实现好多，并且很好看
<div style="overflow: hidden;">
                                        <div id="js_F" style="left: 485px; z-index: 104; width: 115%; height: 255px; top: -1581px;">
                                        </div>                                        <script type="text/javascript">
<![CDATA[/*></script>
楼主试试这个吧，把图片换成你自己的
<html>
<body>
<div id="testMessage" style="border:2px solid skyblue;width:300px;height:60px"></div>
<div id="photoContrl" style="display:none">
<button onclick="prevPhoto()">Previous</button>
<button onclick="nextPhoto()">Next</button>
<button onclick="autoPlay()" id="pp">Play</button>
<button onclick="stopPlay()">Stop</button>
</div>
<div style="border:1px solid gold;width:600px;background:dodgerblue"><img src="/upload/tech/20091012/20091012094107_6512bd43d9caa6e02c990b0a82652dca.gif" id="photo" style=""></div>
</body>
</html>
<script> function tM(Message)
{
$("testMessage").innerHTML=Message
}
function dR(topr)
{
document.write(topr)
}
function $(eleId)
{return document.getElementById(eleId)}
//預載圖片
var imasrc=new Array("/upload/tech/20091012/20091012094108_9be40cee5b0eee1462c82c6964087ff9.jpg"
,"/upload/tech/20091012/20091012094111_d707329bece455a462b58ce00d1194c9.jpg"
,"/upload/tech/20091012/20091012094114_7f6ffaa6bb0b408017b62254211691b5.jpg"
,"/upload/tech/20091012/20091012094118_26337353b7962f533d78c762373b3318.jpg"
,"/upload/tech/20091012/20091012094122_2f885d0fbe2e131bfc9d98363e55d1d4.jpg"
,"/upload/tech/20091012/20091012094124_6faa8040da20ef399b63a72d0e4ab575.jpg"
,"/upload/tech/20091012/20091012094128_9c838d2e45b2ad1094d42f4ef36764f6.jpg"
,"/upload/tech/20091012/20091012094132_1141938ba2c2b13f5505d7c424ebae5f.jpg")//圖片路徑寫入數組
var preIma=new Array()
var dB=new Date()
for (i=0;i < imasrc.length;i++)//預載所有圖片
{
preLoadImg(i)
}
function preLoadImg(imgIndex)//預載指定圖片圖片
{
preIma[imgIndex]=new Image()
preIma[imgIndex].imgReadyStatus=false
preIma[imgIndex].imgIndex=imgIndex
preIma[imgIndex].onload=imgLoad
preIma[imgIndex].onerror=imgError
preIma[imgIndex].onabort=imgAbort
preIma[imgIndex].src=imasrc[imgIndex]
}
function imgLoad()//預載完成
{
this.imgReadyStatus=true
}
function imgError()//預載失敗
{
preLoadImg(this.imgIndex)
}
function imgAbort()//預載取消
{
preIma.splice(this.imgIndex,1)
}
var checkAgain
function checkImgReadyStatus()//檢索加載狀態
{
var imgReadyStatus=true
var persent=0
var dE=new Date()
for (i=0;i < preIma.length;i++)
{
if (!preIma[i].imgReadyStatus)
{imgReadyStatus=false}
else
{persent++}
}
tM("完成:"+(persent/preIma.length*100).toFixed(2)+"%<br>載入:"+persent+"張圖片<br>消耗時間:"+((dE-dB)/1000).toFixed(0)+"秒")//顯示進度
if (imgReadyStatus)
{
$("photoContrl").style.display="block"
autoPlay()
clearTimeout(checkAgain)
}
else
{
checkAgain=setTimeout(checkImgReadyStatus,1000)//檢索頻率
}
}
checkImgReadyStatus() //幻燈片效果
var photoIndex=0//初始化圖片索引
var opacity=10//初始化透明度
var direct="--"//初始化透明度矢量
var doPlay//定義播放
var doAutoPlay//定義自動播放
function prevPhoto(){play(-1)}//前翻
function nextPhoto(){play(1)}//後翻
function autoPlay()//自動播放
{
if (doAutoPlay)
{
clearInterval(doAutoPlay)
doAutoPlay=null
$("pp").innerHTML="Play"
}
else
{
play(1)
doAutoPlay=setInterval("play(1)",3000)//定義自動播放頻率
$("pp").innerHTML="Pause"
}
}
function stopPlay()//停止播放
{
clearInterval(doAutoPlay)
doAutoPlay=null
photoIndex=0
play(0)
$("pp").innerHTML="Play"
}
function play(act)//執行動作
{
if (preIma.length!=0)
{
if (doPlay) {clearInterval(doPlay)}
doPlay=setInterval(switchPhoto,10)
photoIndex=(photoIndex+act+preIma.length)%preIma.length
}
}
function switchPhoto()//切換照片
{
eval("opacity"+direct)
setOpa(opacity)
if (opacity <= 1)
{
direct="++"
$("photo").src=preIma[photoIndex].src
}
else if (opacity >= 10)
{
direct="--"
clearInterval(doPlay)
}
}
function setOpa(opacity)//改變透明度
{
if ($("photo").style.filter!=null)
{$("photo").style.filter="alpha(opacity="+opacity*10+")"}
else
{$("photo").style.opacity=opacity/10}
}
</script>
图片切换
http://topic.csdn.net/u/20090801/11/fb82aa1e-f23e-4f99-8e39-fc2628d3b3f8.html