javascript操作cookie的三个基础方法

function setCookie(name, value, date) {
var oDate = new Date();
oDate.setDate(oDate.getDate() + date);
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 '0';
}

function removeCookie(name) {
setCookie(name, 1, -1);
}