cookie.js

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String.prototype.Trim = function(){
return this.replace(/^\s+/g,"").replace(/\s+$/g,"");
}

function JSCookie(){
this.GetCookie = function(key){
var cookie = document.cookie;
alert(cookie);
var cookieArray = cookie.split(‘;‘);
var getvalue = "";
for(var i = 0;i<cookieArray.length;i++){
if(cookieArray[i].Trim().substr(0,key.length) == key){
getvalue = cookieArray[i].Trim().substr(key.length + 1);
break;
}
}
return getvalue;
};
this.GetChild = function(cookiekey,childkey){
var child = this.GetCookie(cookiekey);
var childs = child.split(‘&‘);
var getvalue = "";
for(var i = 0;i < childs.length;i++){
if(childs[i].Trim().substr(0,childkey.length) == childkey){
getvalue = childs[i].Trim().substr(childkey.length + 1);
break;
}
}
return getvalue;
};
this.SetCookie = function(key,value,expire,domain,path){

if(path==null){
path = "/";
}


var cookie = "";
if(key != null && value != null)
cookie += key + "=" + value + ";";
if(expire != null)
cookie += "expires=" + expire.toGMTString() + ";";
if(domain != null)
cookie += "domain=" + domain + ";";
if(path != null)
cookie += "path=" + path + ";";
document.cookie = cookie;
};
this.Expire = function(key){
expire_time = new Date();
expire_time.setFullYear(expire_time.getFullYear() - 1);
var cookie = " " + key + "=e;expires=" + expire_time + ";"
document.cookie = cookie;
}
}

cookie.js

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原文地址：http://www.cnblogs.com/zhu-java/p/4564732.html