function calc($msg, $irc)
{
	$url = file('http://www.google.com/search?q='.urlencode(str_replace("!calc\s", '', $msg)).'&calc=1');
	foreach ($url as $line => $str)
	{
		if(preg_match("#.*<td nowrap><font size=\+1><b>(.*)</b></td>.*#iU", $str, $result))
		{
			break;
		}
	}
	$irc->send_to_channel("{$msg->user}, {$result[1]}", $msg->channel);
}