CIBlockResult::NavStart

function NavStart($nPageSize=20, $bShowAll=true, $iNumPage=false)
{
	if($this->table_id)
	{
		if ($_REQUEST["mode"] == "excel")
			return;
		$navResult = new CAdminResult(null, '');
		$nSize = $navResult->GetNavSize($this->table_id, $nPageSize);
		unset($navResult);
		if(is_array($nPageSize))
		{
			$this->nInitialSize = $nPageSize["nPageSize"];
			$nPageSize["nPageSize"] = $nSize;
		}
		else
		{
			$this->nInitialSize = $nPageSize;
			$nPageSize = $nSize;
		}
	}
	parent::NavStart($nPageSize, $bShowAll, $iNumPage);
}