public function adminExists($username,$password) {
    $adminQuery = mysql_query("SELECT COUNT(*), id, username, password FROM admin WHERE username='".$username."' AND password='".md5($password)."'" or die ('Admin Query Error
      --- MySQL Error No: '.mysql_errno().' --- '.mysql_error()));
    $adminRow = mysql_fetch_array($adminQuery);
    $uid = $adminRow['id'];
    $exists = ($adminRow['COUNT(*)'] > 0 ? 1 : 0);
    $result = array(1=>$exists, 2=>$uid);
    return $result;
  }