CCourse::CourseGetLinkedLesson

static function CourseGetLinkedLesson ($courseId)
{
	$arMap = CLearnLesson::GetCourseToLessonMap();

	if ( ! isset($arMap['C' . $courseId]) )
	{
		return false;
	}

	// return id of corresponded lesson
	return ($arMap['C' . $courseId]);
}