CAllMeetingItem::IsEditable

static function IsEditable($ID)
{
	global $DB;

	$ID = intval($ID);
	if ($ID <= 0)
		return false;

	$dbRes = $DB->Query("SELECT COUNT(ID) CNT FROM b_meeting_instance WHERE ITEM_ID='".$ID."'");
	$arRes = $dbRes->Fetch();
	if ($arRes)
	{
		return $arRes['CNT'] == 1;
	}

	return false;
}