Create Unique ID

	//Create unique ID
	CFUUIDRef newUniqueId = CFUUIDCreate(kCFAllocatorDefault);
	CFStringRef newUniqueIdString = CFUUIDCreateString(kCFAllocatorDefault, newUniqueId);
	MyString = [MyString stringByAppendingPathComponent:(NSString *)newUniqueIdString];
	CFRelease(newUniqueId);
	CFRelease(newUniqueIdString);