var chapter_list = new Array(
  ["Ch.001.1","c001.1"],
  ["Ch.001.2","c001.2"],
  ["Ch.002","c002"],
  ["Ch.003","c003"],
  ["Ch.004","c004"],
  ["Ch.005","c005"],
  ["Ch.006","c006"],
  ["Ch.007.1","c007.1"],
  ["Ch.007.2","c007.2"],
  ["Ch.008","c008"],
  ["Ch.009","c009"],
  ["Ch.010","c010"],
  ["Ch.011","c011"],
  ["Ch.012","c012"],
  ["Ch.013.1","c013.1"],
  ["Ch.013.2","c013.2"],
  ["Ch.014","c014"],
  ["Ch.015","c015"],
  ["Ch.016","c016"],
  ["Ch.017","c017"],
  ["Ch.018","c018"],
  ["Ch.019","c019"],
  ["Ch.020","c020"],
  ["Ch.021","c021"],
  ["Ch.022","c022"],
  ["Ch.023","c023"],
  ["Ch.024.1","c024.1"],
  ["Ch.024.2","c024.2"],
  ["Ch.025.1","c025.1"],
  ["Ch.025.2","c025.2"],
  ["Ch.026","c026"],
  ["Ch.027","c027"],
  ["Ch.028: The Lost Voice","c028"],
  ["Ch.029: Chapter 29","c029"],
  ["Ch.030","c030"],
  ["Ch.031","c031"],
  ["Ch.032","c032"],
  ["Ch.033: chapter 33","c033"],
  ["Ch.034","c034"],
  ["Ch.035","c035"],
  ["Ch.036","c036"],
  ["Ch.037","c037"],
  ["Ch.038","c038"],
  ["Ch.039","c039"],
  ["Ch.040","c040"],
  ["Ch.041","c041"],
  ["Ch.042","c042"],
  ["Ch.043","c043"],
  ["Ch.044","c044"],
  ["Ch.045","c045"],
  ["Ch.046","c046"],
  ["Ch.047","c047"],
  ["Ch.048","c048"],
  ["Ch.049","c049"],
  ["Ch.050","c050"],
  ["Ch.051","c051"],
  ["Ch.052","c052"],
  ["Ch.053","c053"],
  ["Ch.054","c054"],
  ["Ch.055","c055"],
  ["Ch.056","c056"],
  ["Ch.057","c057"],
  ["Ch.058","c058"],
  ["Ch.059","c059"],
  ["Ch.060","c060"],
  ["Ch.061","c061"],
  ["Ch.062","c062"],
  ["Ch.063","c063"],
  ["Ch.064","c064"],
  ["Ch.065","c065"],
  ["Ch.066","c066"],
  ["Ch.067","c067"],
  ["Ch.068","c068"],
  ["Ch.069","c069"],
  ["Ch.070","c070"],
  ["Ch.071","c071"],
  ["Ch.072","c072"],
  ["Ch.073","c073"],
  ["Ch.074","c074"],
  ["Ch.075","c075"],
  ["Ch.076","c076"],
  ["Ch.077","c077"],
  ["Ch.078","c078"],
  ["Ch.079","c079"],
  ["Ch.080","c080"],
  ["Ch.081","c081"],
  ["Ch.082","c082"],
  ["Ch.083","c083"],
  ["Ch.084","c084"],
  ["Ch.085","c085"],
  ["Ch.086","c086"],
  ["Ch.087","c087"],
  ["Ch.088","c088"],
  ["Ch.089","c089"],
  ["Ch.090","c090"],
  ["Ch.091","c091"],
  ["Ch.092","c092"],
  ["Ch.093","c093"],
  ["Ch.094","c094"],
  ["Ch.095","c095"],
  ["Ch.096","c096"],
  ["Ch.097","c097"],
  ["Ch.098","c098"],
  ["Ch.099","c099"],
  ["Ch.100","c100"],
  ["Ch.101","c101"],
  ["Ch.102","c102"],
  ["Ch.103","c103"],
  ["Ch.104","c104"],
  ["Ch.105","c105"],
  ["Ch.106","c106"],
  ["Ch.107","c107"],
  ["Ch.108","c108"],
  ["Ch.109","c109"],
  ["Ch.110","c110"],
  ["Ch.111","c111"],
  ["Ch.112","c112"],
  ["Ch.113","c113"],
  ["Ch.114","c114"],
  ["Ch.115","c115"],
  ["Ch.116","c116"],
  ["Ch.117","c117"],
  ["Ch.118","c118"],
  ["Ch.119","c119"],
  ["Ch.120","c120"],
  ["Ch.121","c121"],
  ["Ch.122","c122"],
  ["Ch.123: Did I Reach You?","c123"],
  ["Ch.124","c124"],
  ["Ch.125","c125"],
  ["Ch.126","c126"],
  ["Ch.127","c127"],
  ["Ch.128","c128"],
  ["Ch.129","c129"],
  ["Ch.130","c130"],
  ["Ch.131","c131"],
  ["Ch.132: Two Bodies that are Impatient","c132"],
  ["Ch.133","c133"],
  ["Ch.134","c134"],
  ["Ch.135","c135"],
  ["Ch.136: END","c136"]
);

var total_chapters = 141;

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;