var chapter_list = new Array(
  ["Vol.01 Ch.001","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.01 Ch.006","v01/c006"],
  ["Vol.01 Ch.007","v01/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.02 Ch.012","v02/c012"],
  ["Vol.02 Ch.013","v02/c013"],
  ["Vol.02 Ch.014","v02/c014"],
  ["Vol.02 Ch.015","v02/c015"],
  ["Vol.02 Ch.016","v02/c016"],
  ["Vol.03 Ch.017","v03/c017"],
  ["Vol.03 Ch.018","v03/c018"],
  ["Vol.03 Ch.019","v03/c019"],
  ["Vol.03 Ch.020","v03/c020"],
  ["Vol.03 Ch.021","v03/c021"],
  ["Vol.03 Ch.022","v03/c022"],
  ["Vol.03 Ch.023","v03/c023"],
  ["Vol.03 Ch.024","v03/c024"],
  ["Vol.03 Ch.025","v03/c025"],
  ["Vol.04 Ch.026","v04/c026"],
  ["Vol.04 Ch.027","v04/c027"],
  ["Vol.04 Ch.028","v04/c028"],
  ["Vol.04 Ch.029","v04/c029"],
  ["Vol.04 Ch.030","v04/c030"],
  ["Vol.04 Ch.031","v04/c031"],
  ["Vol.04 Ch.032","v04/c032"],
  ["Vol.04 Ch.033","v04/c033"],
  ["Vol.04 Ch.034","v04/c034"],
  ["Vol.05 Ch.035","v05/c035"],
  ["Vol.05 Ch.036","v05/c036"],
  ["Vol.05 Ch.037","v05/c037"],
  ["Vol.05 Ch.038: Strike","v05/c038"],
  ["Vol.05 Ch.039","v05/c039"],
  ["Vol.05 Ch.040","v05/c040"],
  ["Vol.05 Ch.041","v05/c041"],
  ["Vol.05 Ch.042","v05/c042"],
  ["Vol.05 Ch.043","v05/c043"],
  ["Vol.06 Ch.044","v06/c044"],
  ["Vol.06 Ch.045","v06/c045"],
  ["Vol.06 Ch.046","v06/c046"],
  ["Vol.06 Ch.047","v06/c047"],
  ["Vol.06 Ch.048","v06/c048"],
  ["Vol.06 Ch.049","v06/c049"],
  ["Vol.06 Ch.050","v06/c050"],
  ["Vol.06 Ch.051","v06/c051"],
  ["Vol.06 Ch.052","v06/c052"],
  ["Vol.07 Ch.053","v07/c053"],
  ["Vol.07 Ch.054","v07/c054"],
  ["Vol.07 Ch.055","v07/c055"],
  ["Vol.07 Ch.056","v07/c056"],
  ["Vol.07 Ch.057","v07/c057"],
  ["Vol.07 Ch.058","v07/c058"],
  ["Vol.07 Ch.059","v07/c059"],
  ["Vol.07 Ch.060","v07/c060"],
  ["Vol.07 Ch.061","v07/c061"],
  ["Vol.08 Ch.062","v08/c062"],
  ["Vol.08 Ch.063","v08/c063"],
  ["Vol.08 Ch.064","v08/c064"],
  ["Vol.08 Ch.065","v08/c065"],
  ["Vol.08 Ch.066","v08/c066"],
  ["Vol.08 Ch.067","v08/c067"],
  ["Vol.08 Ch.068","v08/c068"],
  ["Vol.08 Ch.069","v08/c069"],
  ["Vol.08 Ch.070","v08/c070"],
  ["Vol.09 Ch.071: Contact","v09/c071"],
  ["Vol.09 Ch.072: Kakunin, or Confirmation","v09/c072"],
  ["Vol.09 Ch.073: Cornered","v09/c073"],
  ["Vol.09 Ch.074: A Fine Performance","v09/c074"],
  ["Vol.09 Ch.075: Recognition","v09/c075"],
  ["Vol.09 Ch.076: Greeting","v09/c076"],
  ["Vol.09 Ch.077: Use","v09/c077"],
  ["Vol.09 Ch.078: Prediction","v09/c078"],
  ["Vol.09 Ch.079: Feigned","v09/c079"],
  ["Vol.10 Ch.080","v10/c080"],
  ["Vol.10 Ch.081","v10/c081"],
  ["Vol.10 Ch.082","v10/c082"],
  ["Vol.10 Ch.083","v10/c083"],
  ["Vol.10 Ch.084","v10/c084"],
  ["Vol.10 Ch.085","v10/c085"],
  ["Vol.10 Ch.086","v10/c086"],
  ["Vol.10 Ch.087","v10/c087"],
  ["Vol.10 Ch.088","v10/c088"],
  ["Vol.11 Ch.089","v11/c089"],
  ["Vol.11 Ch.090","v11/c090"],
  ["Vol.11 Ch.091","v11/c091"],
  ["Vol.11 Ch.092","v11/c092"],
  ["Vol.11 Ch.093","v11/c093"],
  ["Vol.11 Ch.094","v11/c094"],
  ["Vol.11 Ch.095","v11/c095"],
  ["Vol.11 Ch.096","v11/c096"],
  ["Vol.11 Ch.097","v11/c097"],
  ["Vol.11 Ch.098","v11/c098"],
  ["Vol.12 Ch.099","v12/c099"],
  ["Vol.12 Ch.100","v12/c100"],
  ["Vol.12 Ch.101","v12/c101"],
  ["Vol.12 Ch.103","v12/c103"],
  ["Vol.12 Ch.104","v12/c104"],
  ["Vol.12 Ch.105","v12/c105"],
  ["Vol.12 Ch.106: Intent To Kill","v12/c106"],
  ["Vol.12 Ch.107: Curtain","v12/c107"],
  ["Vol.12 Ch.108: Finis","v12/c108"],
  ["Vol.13 Ch.110: How To Read","v13/c110"],
  ["Vol.13 Ch.110.5: Omake","v13/c110.5"],
  ["Vol.XX Ch.000: Oneshot","vXX/c000"]
);

var total_chapters = 110;

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;