无按钮图片轮播切换

大鸟，飞起来 · 发表于 2014-1-13 15:03:22

主文件cpfocus.htm

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无按钮图片切换</title>
<style type="text/css">
#cpfocus{width:380px;height:504px;margin:0 auto;}
#cpfocus div{position:absolute;width:380px;height:504px;overflow:hidden;}
#cpfocus img{width:380px;height:504px;}
#cpfocus #cpfocus_img{display:none;}
</style>
</head>
<body>
<div id="cpfocus">
<div id="cpfocus_bg"></div>
<div id="cpfocus_show"></div>
<div id="cpfocus_img">
<div name="cpfocus_img" id="cpfocus_1">plus/cpfocus/01.jpg|#|美女1号</div>
<div name="cpfocus_img" id="cpfocus_2">plus/cpfocus/02.jpg|#|美女2号</div>
</div>
<script type="text/javascript" src="plus/cpfocus/cpfocus.js"></script>
</div>
</body>
</html>

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基本文件cpfocus.js

var cpfocus_id = 1;
var cpfocus_time = 0;
var cpfocus_bg = "";
var cpfocus_begin = true;
var cpfocus_interval;
var cpfocus_count;
var cpfocus_url = "";
var cpfocus_title = "";
if(navigator.appName == "Microsoft Internet Explorer")
{
cpfocus_count = document.getElementById("cpfocus_img").childNodes.length;
}else{
cpfocus_count = document.getElementsByName("cpfocus_img").length;
}
function func_cpfocus()
{
if(cpfocus_id > cpfocus_count) cpfocus_id = 1;
if(!cpfocus_begin) clearInterval(cpfocus_interval);
cpfocus_interval = setInterval("cpfocus_show(" + cpfocus_id + ")",50);
}
function cpfocus_show(id)
{
if(cpfocus_time < 20 && cpfocus_bg != "")
{
var v = 100 / 20;
if(navigator.appName=="Microsoft Internet Explorer")
{
document.getElementById("cpfocus_show").style.filter = "Alpha(Opacity=" + (v * cpfocus_time) + ")";
}else{
document.getElementById("cpfocus_show").style.opacity = v * cpfocus_time / 100;
}
cpfocus_time ++;
}else if(cpfocus_count > 0){
if(!cpfocus_begin)
{
document.getElementById("cpfocus_bg").innerHTML = "<img src='" + cpfocus_bg + "' />";
cpfocus_time = 0;
clearInterval(cpfocus_interval);
}
var val = document.getElementById("cpfocus_" + cpfocus_id).innerHTML;
var arr = val.split("|");
if(navigator.appName=="Microsoft Internet Explorer")
{
document.getElementById("cpfocus_show").style.filter = "Alpha(Opacity=0)";
}else{
document.getElementById("cpfocus_show").style.opacity = 0;
}
document.getElementById("cpfocus_show").innerHTML = "<a href='" + cpfocus_url + "' target='_blank' title='" + cpfocus_title + "'><img src='" + arr[0] + "' /></a>";
cpfocus_url = arr[1];
cpfocus_title = arr[2];
if(cpfocus_count > 1) cpfocus_id ++;
if(!cpfocus_begin) cpfocus_interval = setInterval("func_cpfocus()",3000); else cpfocus_begin = false;
cpfocus_bg = arr[0];
}
}
func_cpfocus();

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