var chapter_list = new Array(
  ["Vol.00 Ch.000","v00/c000"],
  ["Vol.01 Ch.001: Afuresouna Pool","v01/c001"],
  ["Vol.01 Ch.002","v01/c002"],
  ["Vol.01 Ch.003","v01/c003"],
  ["Vol.01 Ch.004","v01/c004"],
  ["Vol.01 Ch.005","v01/c005"],
  ["Vol.02 Ch.006: The Pool Will Be Overflowing","v02/c006"],
  ["Vol.02 Ch.007","v02/c007"],
  ["Vol.02 Ch.008","v02/c008"],
  ["Vol.02 Ch.009","v02/c009"],
  ["Vol.02 Ch.010","v02/c010"],
  ["Vol.02 Ch.011","v02/c011"],
  ["Vol.03 Ch.012: 'Til the End of the Water Season","v03/c012"],
  ["Vol.03 Ch.013","v03/c013"],
  ["Vol.03 Ch.014","v03/c014"],
  ["Vol.03 Ch.015: A Drowned Fish","v03/c015"],
  ["Vol.03 Ch.016: A Handsome Villian ~ Part 1","v03/c016"],
  ["Vol.03 Ch.017: A Handsome Villian ~ Part 2","v03/c017"],
  ["Vol.04 Ch.018: A Handsome Villian ~ Part 3","v04/c018"],
  ["Vol.04 Ch.019: Drowned Fish","v04/c019"],
  ["Vol.04 Ch.020","v04/c020"],
  ["Vol.04 Ch.021","v04/c021"],
  ["Vol.04 Ch.022: The Fingertip that Can't Be Felt","v04/c022"],
  ["Vol.05 Ch.023: Afuresouna Pool","v05/c023"],
  ["Vol.05 Ch.024","v05/c024"],
  ["Vol.05 Ch.025","v05/c025"],
  ["Vol.05 Ch.026","v05/c026"],
  ["Vol.05 Ch.027","v05/c027"],
  ["Vol.05 Ch.028","v05/c028"],
  ["Vol.06 Ch.029: Afuresouna Pool","v06/c029"],
  ["Vol.06 Ch.030","v06/c030"],
  ["Vol.06 Ch.031: Hikone","v06/c031"],
  ["Vol.06 Ch.032: Randomly Going Against the Man; You Are the Worst Kiss","v06/c032"],
  ["Vol.06 Ch.033: Christmas Nightmare","v06/c033"]
);

var total_chapters = 34;

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;