random element from array help.. please

[satch]

ok, I have this

// get all of the ads id's and place them in an array
$result=MYSQL_QUERY("SELECT id FROM ad_management");
$row=MYSQL_FETCH_ARRAY($result);

is there a quick and dirty way to pull a random result out? A funtion maybe to draw a random result out of the $row results? I want a random id from the database.

thanks in advance

[sarahk]

check out the user contributed notes at http://www.php.net/manual/en/function.rand.php