js中cookie的添加、取值、删除

function setCookie(name,value,time){
	var oDate = new Date();
	oDate.setDate(oDate.getDate()+time);
	document.cookie = name+"="+value+";expires="+oDate;
}

function getCookie(name){
	var arr = document.cookie.split("; ");
	for(var i=0; i<arr.length; i++){
		var arr2 = arr[i].split("=");
		if(arr2[0] == name){
			return arr2[1];
		}
	}
	return "";
}

function removeCookie(name){
	setCookie(name,"",0)
}