#comment added for cvs test
<?

function abncheck($abn){
	$abn = trim($abn);

	$factor = array(10, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19);
	for ($i=0;$i<strlen($abn);$i++){
			
		$digit[$i] = substr($abn,$i,1);
		if ($i == 0)
			$digit[0] = $digit[0]-1;

		$mod += $digit[$i]*$factor[$i];

	}
	
	if ($mod%89 == 0 && $mod >0)
		return 1;
	else
		return 0;
	
}


print abncheck($QUERY_STRING);
?>