7-6.htm
来自「JScript网页特效,包含很多的实现网页特效的方法.」· HTM 代码 · 共 61 行
HTM
61 行
<html>
<head>
<title>§7.6 多幅图片不断轮换显示</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="JavaScript">
<!-- Begin Code
var interval = 2.5; // 图片变换时间,以秒为单位
var random_display = 1; // 1为随机显示,0为顺序显示
interval *= 1000;
var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("001.gif");
image_list[image_index++] = new imageItem("002.gif");
image_list[image_index++] = new imageItem("003.gif");
image_list[image_index++] = new imageItem("004.gif");
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 getNextImage()
{
if (random_display)
{
image_index = Math.floor(Math.random() * 10)%4;
}
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 Code-->
</script>
</head>
<body bgcolor="#FFFFFF" OnLoad="rotateImage('rImage')">
<p><img name="rImage" src="001.gif" width=100 height=75> </p>
<p>上图为四幅图来回变换显示。</p>
</body>
</html>
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