This article describes the method of JavaScript to realize the gradual display of image playback. Share it for your reference. The specific implementation method is as follows:
Copy the code as follows: <html>
<title>The picture loop gradually displays the playback effect code</title>
<head>
<!--1. Insert the following code between the <head></head> of the HEML: -->
<script language=javaScript>
<!--//
sandra0 = new Image();
sandra0.src = "/images/m01.jpg";
sandra1 = new Image();
sandra1.src = "/images/m02.jpg";
sandra2 = new Image();
sandra2.src = "/images/m03.jpg";
var i_strngth=1
var i_image=0
var imageurl = new Array()
imageurl[0] ="/images/m01.jpg"
imageurl[1] ="/images/m02.jpg"
imageurl[2] ="/images/m03.jpg"
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>
</head>
<body>
<!--2. Modify the <body> statement to:-->
<body onLoad="showimage()">
<!--3. Add the following code to the <body></body> of HEML: top:120px; left:240px can set the display position-->
<div id="testimage" style="position:absolute;visibility:visible;top:120px;left:240px"></div>
</body>
</html>
I hope this article will be helpful to everyone's JavaScript programming.