Cookies, Data

Cookies
 - Added support for session cookies

Data
 - Added test code snippet to CreateGuid function

Core/Cookies.js

@@ -7,23 +7,32 @@ Fit.Cookies = {};
 /// 	<description> Create or update cookie - returns True on success, otherwise False </description>
 /// 	<param name="name" type="string"> Unique cookie name </param>
 /// 	<param name="value" type="string"> Cookie value (cannot contain semicolon!) </param>
-/// 	<param name="seconds" type="integer"> Expiration time in seconds </param>
+/// 	<param name="seconds" type="integer" default="undefined">
+/// 		Optional expiration time in seconds. Creating a cookie with
+/// 		no expiration time will cause it to expire when session ends.
+/// 	</param>
 /// </function>
 Fit.Cookies.Set = function(name, value, seconds)
 {
 	Fit.Validation.ExpectStringValue(name);
 	Fit.Validation.ExpectString(name);
-	Fit.Validation.ExpectInteger(seconds);
+	Fit.Validation.ExpectInteger(seconds, true);
 
 	if (value.indexOf(';') > -1)
 	{
 		throw new Error("Unable to set cookie - value contains illegal character: ';'");
 		return false;
 	}
 
-	var date = new Date();
-	date.setTime(date.getTime() + (seconds * 1000));
-	document.cookie = name + "=" + value + "; expires=" + date.toGMTString() + "; path=/";
+	var date = null;
+
+	if (Fit.Validation.IsSet(seconds) === true)
+	{
+		date = new Date();
+		date.setTime(date.getTime() + (seconds * 1000));
+	}
+
+	document.cookie = name + "=" + value + ((date !== null) ? "; expires=" + date.toGMTString() : "") + "; path=/";
 
 	return true;
 }

Core/Data.js

@@ -16,6 +16,36 @@ Fit.Data.CreateGuid = function(dashFormat)
 {
 	Fit.Validation.ExpectBoolean(dashFormat, true);
 
+	/*
+	// Test case proving that unique GUIDs are generated every time.
+	// Use a powerful computer to run this test, and a fast browser (e.g. Safari).
+
+	var guids = {};
+	var minors = 0;
+
+	for (var i = 0 ; i < 25000000 ; i++) // 25 million
+	{
+		var g = Fit.Data.CreateGuid();
+
+		minors++;
+		if (minors === 5000)
+		{
+			console.log("5000 more GUIDs generated");
+			minors = 0;
+		}
+
+		if (guids[g])
+		{
+			alert("GUID already in use: " + g);
+			break;
+		}
+		else
+		{
+			guids[g] = 1;
+		}
+	}
+	*/
+
 	var chars = "0123456789abcdef".split("");
 
 	var uuid = new Array();