Miscellany

if (isset($_GET['cat'])){	$query = "SELECT * FROM categorys WHERE subgroupof = 'NONE' ORDER BY categoryname"; $result = mysql_query($query) or die(mysql_error());while($row = mysql_fetch_array($result)){	echo '<li><A href="index.php?cat='.$row['categoryname'].'&action=cat">'.$row['categoryname'].'</a>';	if ($row['categoryname'] === $_GET['cat']){					$query = "SELECT * FROM categorys WHERE subgroupof = '".$row['categoryname']."' ORDER BY categoryname"; 						$result = mysql_query($query) or die(mysql_error());			echo '<ul>';			while($row = mysql_fetch_array($result)){				echo '<li><A href="index.php?cat='.$row['categoryname'].'&action=cat">'.$row['categoryname'].'</a></li>';			}			echo '</ul></li>';			} else { echo '</li>'; }}}