CIBlockCMLImport::GetIBlockByXML_ID

function GetIBlockByXML_ID($XML_ID)
{
	if($XML_ID <> '')
	{
		$obIBlock = new CIBlock;
		$rsIBlock = $obIBlock->GetList(array(), array("XML_ID"=>$XML_ID, "CHECK_PERMISSIONS" => "N"));
		if($arIBlock = $rsIBlock->Fetch())
			return $arIBlock["ID"];
		else
			return false;
	}
	return false;
}