= pow(2,40)) 
		{
			$strReturn = round($nBytes / pow(1024,4), 2);
			$strSuffix = "TB";
		} 
		elseif ($nBytes >= pow(2,30)) 
		{
			$strReturn = round($nBytes / pow(1024,3), 2);
			$strSuffix = "GB";
		} 
		elseif ($nBytes >= pow(2,20)) 
		{
			$strReturn = round($nBytes / pow(1024,2), 2);
			$strSuffix = "MB";
		} 
		elseif ($nBytes >= pow(2,10)) 
		{
			$strReturn = round($nBytes / pow(1024,1), 2);
			$strSuffix = "KB";
		} 
		else 
		{
			$strReturn = $nBytes;
			$strSuffix = "Byte";
		}
		
		if ($strReturn == 1) 
		{
			$strReturn .= " " . $strSuffix;
		} 
		else 
		{
			$strReturn .= " " . $strSuffix . "s";
		}
		
		return $strReturn;
	}
?>