//If there are input validations, redirect back to the login form
if($errflag) {
    $_SESSION['ERRMSG_ARR'] = $errmsg_arr;
    session_write_close();
    header("location: login-test.php");
    exit();
}

//Create query
$qry="SELECT * FROM members WHERE username='$username' AND password='$password'";
$result=mysql_query($qry);
$row = mysql_fetch_object($qry);

//Check whether the query was successful or not
if($result) {
    if(mysql_num_rows($result) == 1 && $row->authlevel == "admin") {
        //Login Successful
        session_regenerate_id();
        $member = mysql_fetch_assoc($result);
        $_SESSION['SESS_MEMBER_ID'] = $member['username'];
        $_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
        $_SESSION['SESS_LAST_NAME'] = $member['username'];
        session_write_close();
        header("location: admin_index.php");
        exit();
    } else {
        //Login failed
        header("location: login-failed.php");
    }
}else {
    die("Query failed");
}