js对cookie的操作

var mycookies = {
set:function(name, value){
var cook = name+"="+value+";";
if(!!arguments[2]){
var d = new Date();
d.setDate(d.getDate()+arguments[2]);
cook = cook + "expires="+d.toUTCString()+";";
}
if(!!arguments[3]){
cook = cook + "path="+arguments[3]+";";
}
if(!!arguments[4]){
cook = cook + "domain="+arguments[4];
}
document.cookie = cook;
},
get:function(name){
var cookie = document.cookie;
var arr = cookie.split(";");
for(var i=0;i<arr.length;i++){
var info = arr[i];
var arrInfo = info.split("=");
if(arrInfo[0]==name){
return arrInfo[1];
}
}
return "";
},
remove:function(name){
var info = this.get(name);
var date = new Date();
date.setDate(date.getDate()-1);
var cook = name + "=" + info+";expires="+date.toUTCString()+";";
if(!!arguments[1]){
cook = cook + "path="+arguments[1]+";";
}
if(!!arguments[2]){
cook = cook + "domain="+arguments[2]+";";
}
document.cookie = cook;

}
}