这个时候我们最好是将cookie操作封装起来,便于重用啊

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复制代码 代码如下:

/**

类 Cookie

将此类放入用到的js文件中即可使用

1.add(name,value,100); 添加一个cookie

2.get(name);

3.remove(name);

用例:

Cookie.add("sk","ss",3);

alert(cookie.get("sk"));

Cookie.remove("sk");

*/

var Cookie=new function(){

//添加cookie

this.add=function(name,value,hours){

var life=new Date().getTime();

life+=hours*1000*60;

var cookieStr=name+"="+escape(value)+";expires="+new Date(life).toGMTString();

document.cookie=cookieStr;

};

//获取cookie值

this.get=function(name){

var cookies = document.cookie.split(";");

if(cookies.length>0){

var cookie=cookies[0].split("=");

if(cookie[0]==name)

return unescape(cookie[1]);

}

return null;

};

//删除cookie

this.remove=function(name){

var cookieStr=name+"="+escape('null')+";expires="+new Date().toGMTString();

document.cookie=cookieStr;

};

}