I'm really confused.

[???]

My script may have some errors, but right now my problem are a couple of lines.

			var Cookie = function Cookie (type,name,value,expireDate,path) {
				if (type == "get") {
					this.getCookieByName (name);
				}
				if (type == "set") {
					this.setCookie (name,value,expireDate,path);
				}
			}
			Cookie.prototype.name = null;
			Cookie.prototype.value = null;
			Cookie.prototype.expireDate = null;
			Cookie.prototype.path = null;
			Cookie.prototype.storeCookie = function storeCookie () {
				document.cookie = this.name + "=" + this.value + "; expires=" + this.expireDate + "; path=" + this.path + "; ";
			}
			Cookie.prototype.setCookie = function setCookie (name,value,expireDate,path) {
				this.name = name;
				this.value = value;
				if (typeof expireDate == "string") {
					this.expireDate = expireDate;
				}
				if (expireDate.constructor == Date) {
					this.expireDate = expireDate.toUTCString ();
				}
				this.path = path;
			}
			Cookie.prototype.getCookieByName = function getCookieByName (name) {
				var nvPairs = document.cookie.split ("; ");
				for (var i = 0; i < nvPairs.length; i = i + 1) {
					var seped = nvPairs [i].split ("=");
					if (seped [0] == name) {
						this.name = seped [0];
						this.value = seped [1];
					}
				}
			}
			Cookie.prototype.getCookieByValue = function getCookieByValue (value) {
				var toReturn = new Array ();
				var nvPairs = document.cookie.split ("; ");
				for (var i = 0; i < nvPairs.length; i = i + 1) {
					var seped = nvPairs [i].split ("=");
					if (seped [1] == value) {
						toReturn [toReturn.length] = new Array ();
						toReturn [toReturn.length] [0] = seped [0];
						toReturn [toReturn.length] [1] = seped [1];
					}
				}
				return toReturn;
			}
			Cookie.prototype.deleteCookie = function deleteCookie (path) {
				var theDate = new Date ();
				theDate.setFullYear (theDate.getFullYear() - 1);
				this.setCookie (this.name,this.value,theDate,path);
				this.storeCookie ();
				this.setCookie (null,null,null,null);
			}
			var haha = new Cookie ();
			haha.setCookie ("ppk1","lolered",new Date ().setFullYear(2010),"/");
			haha.storeCookie();
			alert(document.cookie);
			haha.deleteCookie("/");
			alert(document.cookie);

My problem is in setCookie, it says expireDate has no properties. But, in delete, it's expire date does, and I pass delete's expireDate to set. I just don't get it.

[Twey]

.constructor doesn't exist in some browsers. Try instead:

if(expireDate instanceof Date)

[???]

It worked in deleteCookie, but not in setCookie.