Bake Cookies.js

if (!window.BakeCookies) {
  window.BakeCookies = {
		set: (function () {
			var days;

			return function BakeCookies_set(name, value, expires) {
				if ((expires != null) && !(expires instanceof Date)) {
					switch (typeof (expires)) {
						case "number":
							days = expires;
							expires = new Date();
							expires.setDate(expires.getDate() + days);
							break;
						case "string":
							expires = new Date(expires);
							break;
						default:
							expires = null;
					}

				}

				document.cookie = (
					escape(name) + "=" + escape(value) +
					(
						expires == null
							? ""
							: "; expires=" + expires.toUTCString()
					)
				);
			};
		})(),
		get: (function () {
			var find = /(?:^|;|\s){name}=([\W\w]*?)(?:;|\s|$)/.source, found;

			return function BakeCookies_get(name) {
				found = new RegExp(find.replace("{name}", escape(name))).exec(document.cookie);
				if (found) {
					return unescape(found[1]);
				}
				else { return null; }
			};
		})()
	};
}


// tests
var future_expiry = new Date();
future_expiry.setYear(3000);

// set
BakeCookies.set('1 day expiry', 'set', 1);
BakeCookies.set('with date', 'set2', future_expiry);
BakeCookies.set('session', '3set');
BakeCookies.set('expired', 'value', new Date(0));

console.log("cookie: ", document.cookie);

// get
console.log("1 day expiry: ", BakeCookies.get("1 day expiry"));
console.log("with date: ", BakeCookies.get("with date"));
console.log("session: ", BakeCookies.get("session"));
console.log("expired: ", BakeCookies.get("expired"));