public function getChecksumCrc( $arrData )
	{
		if ( ! UCProLib::isValidXTArray( $arrData ) )
		{
			return '';
		}

		$nRet		= 0;
		$sString	= $this->_GetDigestSource( $arrData );
		if ( CLib::IsExistingString( $sString ) )
		{
			$sData	= mb_strtolower( trim( $sString . "-" . $this->m_arrCfg[ UCProConst::CONFIG_COOKIE_SEED ] ) );
			$nRet	= abs( crc32( $sData ) );
		}

		//	...
		return $nRet;
	}