MySql and PHP Query help

So here is my problem, I am creating categories for my website; however, I don't want all the categories to show up under my left nav bar, just a few select ones. Is there a way I could change this code to pick certain category ids, say 30 , 31, 33, and 35 to only show up? Your help is greatly appreciated!

<?

// get categories

$sql = mysql_query("select * from categories where id != 1");

$count = mysql_num_rows($sql);

if($count > 0){

while($row = mysql_fetch_assoc($sql)){

$name = $row['name'];

print ''.$name.'';

}

}

else{

print 'There are currently 0 categories. Please login to your admin panel to manage categories.';

}

?>

 

Replace the first line with this:

$sql = mysql_query("select * from categories where id IN(30, 31, 33, 35)") OR die(mysql_error());

PHP:

 

DUDE!!!! You rock, thanks a ton.