var chapter_list = new Array(
  ["Ch.001: Escape","c001"],
  ["Ch.002: The 7th District","c002"],
  ["Ch.003: Darkness","c003"],
  ["Ch.004: Kor","c004"],
  ["Ch.005: Violation","c005"],
  ["Ch.006: Awakening","c006"],
  ["Ch.007: Cycle of Rebirth","c007"],
  ["Ch.008: Michael","c008"],
  ["Ch.009: Atonement","c009"],
  ["Ch.010: Nightmare [Part 1]","c010"],
  ["Ch.011: Nightmare [Part 2]","c011"],
  ["Ch.012: Nightmare [Part 3]","c012"],
  ["Ch.013: Nightmare [Part 4]","c013"],
  ["Ch.014: Nightmare [Part 5]","c014"],
  ["Ch.015: Nightmare [Part 6]","c015"],
  ["Ch.016: Nightmare [Part 7]","c016"],
  ["Ch.017: Nightmare [Part 8]","c017"],
  ["Ch.018: Nightmare [Part 9]","c018"],
  ["Ch.019: Nightmare [Part 10]","c019"],
  ["Ch.020: Song for Souls' Repose ~Requiem~","c020"],
  ["Ch.021: The Morning of the Bishop Exam","c021"],
  ["Ch.022: The Final Door","c022"],
  ["Ch.023: The Bridge of Tribulation","c023"],
  ["Ch.023.5: Extra: Supreme Sugar","c023.5"],
  ["Ch.024: Light and Dark","c024"],
  ["Ch.025: Setting Off","c025"],
  ["Ch.026: Antwort","c026"],
  ["Ch.027: Slave Trader","c027"],
  ["Ch.028: The 6th District","c028"],
  ["Ch.029: Hausen House [Part 1]","c029"],
  ["Ch.030: Hausen House [Part 2]","c030"],
  ["Ch.031: Hausen House [Part 3]","c031"],
  ["Ch.032: Hausen House [Part 4]","c032"],
  ["Ch.033: Hausen House [Part 5]","c033"],
  ["Ch.034: Extra: Aspiration","c034"],
  ["Ch.035: Candle Flame","c035"],
  ["Ch.036: The Hated One","c036"],
  ["Ch.037: Tattoo","c037"],
  ["Ch.038: Recollection","c038"],
  ["Ch.039.1: Evidence","c039.1"],
  ["Ch.039.2: Division","c039.2"],
  ["Ch.040: Lingering Snow","c040"],
  ["Ch.041: Omen","c041"],
  ["Ch.042: Relikt","c042"],
  ["Ch.043: Pandora's Box","c043"],
  ["Ch.044: Fate","c044"],
  ["Ch.045: The Madness That Can't Be Grasped","c045"],
  ["Ch.046: Kagome, Kagome","c046"],
  ["Ch.047: The Same Hands","c047"],
  ["Ch.048: Chance Meeting","c048"],
  ["Ch.049: Paradise of Oblivion [Part 1]","c049"],
  ["Ch.050: Paradise of Oblivion [Part 2]","c050"],
  ["Ch.051: Paradise of Oblivion [Part 3]","c051"],
  ["Ch.051.5: Paradise of Oblivion [Part 4]","c051.5"],
  ["Ch.052: Prophet","c052"],
  ["Ch.053: Joker","c053"],
  ["Ch.054.5: Extra: Platonic Cafe","c054.5"],
  ["Ch.055: The Almarz Residence","c055"],
  ["Ch.056: The Neverending 1st Day","c056"],
  ["Ch.057: Capella","c057"],
  ["Ch.058: Doubt","c058"],
  ["Ch.058.5: Extra: One Day I Saw the Sky","c058.5"],
  ["Ch.059: Hawkzile Race","c059"],
  ["Ch.059.1: Predator","c059.1"],
  ["Ch.060: Runaway","c060"],
  ["Ch.061: 50/50","c061"],
  ["Ch.062: The Villain","c062"],
  ["Ch.063: Roseamanelle Ouka Barsburg","c063"],
  ["Ch.064: Tiashe 1","c064"],
  ["Ch.064.5: Hyuuga vs. Konatsu","c064.5"],
  ["Ch.065: Tiashe 2","c065"],
  ["Ch.066: Tiashe 3","c066"],
  ["Ch.068: The Land of Seele","c068"],
  ["Ch.069: Confrontation","c069"],
  ["Ch.070: Separation","c070"],
  ["Ch.071: Disappearance","c071"],
  ["Ch.072: Déjà Vu","c072"],
  ["Ch.073: Curse","c073"],
  ["Ch.074: Impatient","c074"],
  ["Ch.075: Younger Brother","c075"]
);

var total_chapters = 80;

for (var i = 0; i < chapter_list.length; i++) {
  document.getElementById('top_chapter_list').options[i] = new Option(chapter_list[i][0], chapter_list[i][1]);
  document.getElementById('bottom_chapter_list').options[i] = new Option(chapter_list[i][0], chapter_list[i][1]);
}
document.getElementById('top_chapter_list').value=current_chapter;
document.getElementById('bottom_chapter_list').value=current_chapter;
var current_chapter_index = document.getElementById('top_chapter_list').selectedIndex;