private function loadFile ($file)
	{
		if (!isset ($this->files[$file]))
		{
			$filename = $this->folder . $file . '.php';

			// First load these
			if (file_exists ($filename))
			{
				$this->files[$file] = include ($filename);
			}

			// Now overload with environment values
			if (isset ($this->environment))
			{
				$filename = $this->folder . $this->environment . '/' . $file . '.php';
				if (file_exists ($filename))
				{
					$this->merge ($file, include ($filename));
				}
			}

		}
	}