/*
$adusers is an array of about 7000 elements, each of these elements
contain an array which has 1-5 elements in it.

$list is an array of about 2000 elements

*/


function orphans($adusers, $list) {

	for ($x = 0; $x < sizeof($adusers); $x++) {

		if (isset($tmpbuffer)) {

			$tmpbuffer = array_merge($tmpbuffer, $adusers[$x]->emails);
		}
		else
		{
			$tmpbuffer = $adusers[$x]->emails;
		}
	}

	for ($x = 0; $x < sizeof($list); $x++) {

		if (!in_array(strtolower($list[$x]), $tmpbuffer)) {

			$buffer[] =	$list[$x];

		}

	}

	return $buffer;

}