12、图片的逐显播放
类别: JavaScript教程 
====1、将下面的代码插入到HEML的<head></head>之间：
<script language=javaScript>
<!--//
sandra0 = new Image();
sandra0.src = "image1.gif";
sandra1 = new Image();
sandra1.src = "image2.gif";
sandra2 = new Image();
sandra2.src = "image3.gif";
var i_strngth=1
var i_image=0
var imageurl = new Array()
imageurl[0] ="图片名称1.gif"
imageurl[1] ="图片名称2.gif"
imageurl[2] ="图片名称3.gif"
function showimage() {
if(document.all) {
if (i_strngth <=110) {
testimage.innerHTML="<img style=\'filter:alpha(opacity="+i_strngth+")\' src="+imageurl[i_image]+" border=0>";
i_strngth=i_strngth+10
var timer=setTimeout("showimage()",100)
}
else {
clearTimeout(timer)
var timer=setTimeout("hideimage()",1000)
}
}
if(document.layers) {
clearTimeout(timer)
document.testimage.document.write("<img src="+imageurl[i_image]+" border=0>")
document.close()
i_image++
if (i_image >= imageurl.length) {i_image=0}
var timer=setTimeout("showimage()",2000)
}
}
function hideimage() {
if (i_strngth >=-10) {
testimage.innerHTML="<img style=\'filter:alpha(opacity="+i_strngth+")\' src="+imageurl[i_image]+" border=0>";
i_strngth=i_strngth-10
var timer=setTimeout("hideimage()",100)
}
else {
clearTimeout(timer)
i_image++
if (i_image >= imageurl.length) {i_image=0}
i_strngth=1
var timer=setTimeout("showimage()",500)
}
}
//-->
</script>
====2、修改<body>语句为：
<body onLoad="showimage()">
====3、将下面的代码加入到HEML的<body></body>之间：
<div id="testimage" style="position:absolute;visibility:visible;top:120px;left:240px"></div>
<script language=javaScript>
<!--//
sandra0 = new Image();
sandra0.src = "image1.gif";
sandra1 = new Image();
sandra1.src = "image2.gif";
sandra2 = new Image();
sandra2.src = "image3.gif";
var i_strngth=1
var i_image=0
var imageurl = new Array()
imageurl[0] ="图片名称1.gif"
imageurl[1] ="图片名称2.gif"
imageurl[2] ="图片名称3.gif"
function showimage() {
if(document.all) {
if (i_strngth <=110) {
testimage.innerHTML="<img style=\'filter:alpha(opacity="+i_strngth+")\' src="+imageurl[i_image]+" border=0>";
i_strngth=i_strngth+10
var timer=setTimeout("showimage()",100)
}
else {
clearTimeout(timer)
var timer=setTimeout("hideimage()",1000)
}
}
if(document.layers) {
clearTimeout(timer)
document.testimage.document.write("<img src="+imageurl[i_image]+" border=0>")
document.close()
i_image++
if (i_image >= imageurl.length) {i_image=0}
var timer=setTimeout("showimage()",2000)
}
}
function hideimage() {
if (i_strngth >=-10) {
testimage.innerHTML="<img style=\'filter:alpha(opacity="+i_strngth+")\' src="+imageurl[i_image]+" border=0>";
i_strngth=i_strngth-10
var timer=setTimeout("hideimage()",100)
}
else {
clearTimeout(timer)
i_image++
if (i_image >= imageurl.length) {i_image=0}
i_strngth=1
var timer=setTimeout("showimage()",500)
}
}
//-->
</script>
====2、修改<body>语句为：
<body onLoad="showimage()">
====3、将下面的代码加入到HEML的<body></body>之间：
<div id="testimage" style="position:absolute;visibility:visible;top:120px;left:240px"></div>
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