图片循环显现
2001-05-24 10:21:39 来源：WEB开发网核心提示：脚本说明： 第一步:把如下代码加入<head>区域中: <SCRipT LANGUAGE="javaScript"> <!-- Begin var interval = 2.5; // delay between rotating images (in seconds)
脚本说明：
第一步:把如下代码加入<head>区域中:
<SCRipT LANGUAGE="javaScript">
<!-- Begin
var interval = 2.5; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
interval *= 1000;
var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem(http://www.cncms.com/"01.jpg");
image_list[image_index++] = new imageItem("02.jpg");
image_list[image_index++] = new imageItem("03.jpg");
image_list[image_index++] = new imageItem("04.jpg");
var number_of_image = image_list.length;
function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
return(imageObj.image_item.src)
}
function generate(x, y) {
var range = y - x + 1;
return Math.floor(Math.random() * range) + x;
}
function getNextImage() {
if (random_display) {
image_index = generate(0, number_of_image-1);
}
else {
image_index = (image_index+1) % number_of_image;
}
var new_image = get_ImageItemLocation(image_list[image_index]);
return(new_image);
}
function rotateImage(place) {
var new_image = getNextImage();
document[place].src = new_image;
var recur_call = "rotateImage('"+place+"')";
setTimeout(recur_call, interval);
}
// End -->
</script>
第二步:把<body>中加入如下代码：
<img name="rImage" src=http://www.cncms.com/"01.jpg" width=120 height=90>
第三步：把<body>中内容改为：
<body bgcolor="#fef4d9" OnLoad="rotateImage('rImage')">
第一步:把如下代码加入<head>区域中:
<SCRipT LANGUAGE="javaScript">
<!-- Begin
var interval = 2.5; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
interval *= 1000;
var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem(http://www.cncms.com/"01.jpg");
image_list[image_index++] = new imageItem("02.jpg");
image_list[image_index++] = new imageItem("03.jpg");
image_list[image_index++] = new imageItem("04.jpg");
var number_of_image = image_list.length;
function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
return(imageObj.image_item.src)
}
function generate(x, y) {
var range = y - x + 1;
return Math.floor(Math.random() * range) + x;
}
function getNextImage() {
if (random_display) {
image_index = generate(0, number_of_image-1);
}
else {
image_index = (image_index+1) % number_of_image;
}
var new_image = get_ImageItemLocation(image_list[image_index]);
return(new_image);
}
function rotateImage(place) {
var new_image = getNextImage();
document[place].src = new_image;
var recur_call = "rotateImage('"+place+"')";
setTimeout(recur_call, interval);
}
// End -->
</script>
第二步:把<body>中加入如下代码：
<img name="rImage" src=http://www.cncms.com/"01.jpg" width=120 height=90>
第三步：把<body>中内容改为：
<body bgcolor="#fef4d9" OnLoad="rotateImage('rImage')">
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