进入页面弹出收藏夹JS代码怎么写

2012-11-10 来源：网络

【实例名称】

进入页面弹出收藏夹JS代码怎么写

【实例描述】

很多网站为了推广各种服务，一般会建议用户将网页添加进收藏夹。本例通过一个简单的实例，学习如何自动弹出收藏夹。

【实例代码】

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<SCRIPT LANGUAGE="JavaScript">
var expDays = 7;
url = http://www.google.com/;
title = "收藏夹特效";
// 获取Cookie中保存的信息
function GetCookie (name) 
{  
var arg = name + "=";  
var alen = arg.length;  
var clen = document.cookie.length;  
var i = 0;  
while (i < clen) {    
var j = i + alen;    
if (document.cookie.substring(i, j) == arg)      
return getCookieVal (j);    
i = document.cookie.indexOf(" ", i) + 1;    
if (i == 0) break;   }  
return null;
}
// 保存信息到Cookie中
function SetCookie (name, value) 
{  
var argv = SetCookie.arguments;  
var argc = SetCookie.arguments.length;  
var expires = (argc > 2) ? argv[2] : null;  
var path = (argc > 3) ? argv[3] : null;  
var domain = (argc > 4) ? argv[4] : null;  
var secure = (argc > 5) ? argv[5] : false;  
//设置cookie的属性：有效期、域、路径等
document.cookie = name + "=" + escape (value) + 
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
((path == null) ? "" : ("; path=" + path)) +  
((domain == null) ? "" : ("; domain=" + domain)) +    
((secure == true) ? "; secure" : "");
}
//删除指定的Cookie
function DeleteCookie (name) 
{  
var exp = new Date();  
exp.setTime (exp.getTime() - 1);  
var cval = GetCookie (name);  
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
var exp = new Date(); 
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
function amt(){
var count = GetCookie('count')
if(count == null) {
SetCookie('count','1')
return 1
}
else {
var newcount = parseInt(count) + 1;
DeleteCookie('count')
SetCookie('count',newcount,exp)
return count
   }
}
function getCookieVal(offset) 
{
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr)); 
//解密Cookie中的信息
}
function checkCount() 
{
var count = GetCookie('count');
//如果已经在收藏夹中添加了网站，则下一次不再出现添加收藏夹界面
if (count == null) {
count=1;
SetCookie('count', count, exp);
    if ((navigator.appName == "Microsoft Internet Explorer") && 
(parseInt(navigator.appVersion) >= 4))
    {
        window.external.AddFavorite (url,title);  
//打开收藏夹的关键语句
    }
}
else {
    count++;
    SetCookie('count', count, exp);
   }
}
checkCount();
</script>
</head>
<body bgcolor="#ffffff" onLoad="window.setTimeout('getSecs()',1)">
</body>
</html>

【运行效果】

进入页面弹出收藏夹运行效果