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;

	}
}