public static function format($output)
	{
		$output->addString('The profile log has the following format (');
		$output->addString('* indicates visible field', array('color'=>'blue'));
		$output->addLine('):');

		$i = 0;
		foreach (static::$fields as $field => $status)
		{
			if ($i != 0)
			{
				$output->addString(' ');
			}

			$output->addString('<');

			if ($i < 10)
			{
				$output->addString($i . ':');
			}

			if ($status)
			{
				$output->addString('*' . $field, array('color'=>'blue'));
			}
			else
			{
				$output->addString($field);
			}

			$output->addString('>');
			$i++;
		}

		$output->addSpacer()->addSpacer();
	}