dom.js

const pageWrappers = document.querySelectorAll('.page-wrapper');

const statusBox = document.querySelector('#status-box');

const registrationUserId          = document.querySelector('#registration-user-id');
const registrationPassword        = document.querySelector('#registration-password');
const registrationConfirmPassword = document.querySelector('#registration-confirm-password');

const matchInformationEvent  = document.querySelector('#match-information-event');
const matchInformationType   = document.querySelector('#match-information-type');
const matchInformationNumber = document.querySelector('#match-information-number');

const matchInformationB1 = document.querySelector('#match-information-b1');
const matchInformationB2 = document.querySelector('#match-information-b2');
const matchInformationB3 = document.querySelector('#match-information-b3');

const matchInformationR1 = document.querySelector('#match-information-r1');
const matchInformationR2 = document.querySelector('#match-information-r2');
const matchInformationR3 = document.querySelector('#match-information-r3');

const bettingUserId   = document.querySelector('#betting-user-id');
const bettingPassword = document.querySelector('#betting-password');
const bettingAmount   = document.querySelector('#betting-amount');

const leaderboardTable = document.querySelector('#leaderboard-table');