var chapter_list = new Array(
  ["Vol.01 Ch.000: Eat-Man Vol.01 Ch.000","v01/c000"],
  ["Vol.02 Ch.000: Eat-Man Vol.02 Ch.000","v02/c000"],
  ["Vol.03 Ch.001: Eat-Man Vol.03 Ch.001","v03/c001"],
  ["Vol.03 Ch.002: Eat-Man Vol.03 Ch.002","v03/c002"],
  ["Vol.04 Ch.009: Eat-Man Vol.04 Ch.009","v04/c009"],
  ["Vol.04 Ch.010: Eat-Man Vol.04 Ch.010","v04/c010"],
  ["Vol.04 Ch.011: Eat-Man Vol.04 Ch.011","v04/c011"],
  ["Vol.04 Ch.012: Eat-Man Vol.04 Ch.012","v04/c012"],
  ["Vol.04 Ch.013: Eat-Man Vol.04 Ch.013","v04/c013"],
  ["Vol.05 Ch.000: Eat-Man Vol.05 Ch.000","v05/c000"],
  ["Vol.06 Ch.001","v06/c001"],
  ["Vol.06 Ch.002: Eat-Man Vol.06 Ch.002","v06/c002"],
  ["Vol.07 Ch.001","v07/c001"],
  ["Vol.07 Ch.002","v07/c002"],
  ["Vol.08 Ch.000","v08/c000"],
  ["Vol.09 Ch.001","v09/c001"],
  ["Vol.09 Ch.002","v09/c002"],
  ["Vol.10 Ch.001","v10/c001"],
  ["Vol.10 Ch.002","v10/c002"],
  ["Vol.11 Ch.001","v11/c001"],
  ["Vol.11 Ch.002","v11/c002"],
  ["Vol.12 Ch.001","v12/c001"],
  ["Vol.12 Ch.002","v12/c002"],
  ["Vol.12 Ch.003","v12/c003"],
  ["Vol.12 Ch.004","v12/c004"],
  ["Vol.12 Ch.005","v12/c005"],
  ["Vol.12 Ch.005.2: Special","v12/c005.2"],
  ["Vol.13 Ch.001","v13/c001"],
  ["Vol.13 Ch.002","v13/c002"],
  ["Vol.13 Ch.003","v13/c003"],
  ["Vol.13 Ch.004","v13/c004"],
  ["Vol.13 Ch.005","v13/c005"],
  ["Vol.13 Ch.005.2","v13/c005.2"],
  ["Vol.14 Ch.000","v14/c000"],
  ["Vol.14 Ch.001","v14/c001"],
  ["Vol.15 Ch.001","v15/c001"],
  ["Vol.15 Ch.002","v15/c002"],
  ["Vol.16 Ch.001","v16/c001"],
  ["Vol.16 Ch.002","v16/c002"],
  ["Vol.17 Ch.001","v17/c001"],
  ["Vol.17 Ch.002","v17/c002"],
  ["Vol.18 Ch.001","v18/c001"],
  ["Vol.18 Ch.002","v18/c002"],
  ["Vol.18 Ch.003","v18/c003"],
  ["Vol.18 Ch.004","v18/c004"],
  ["Vol.18 Ch.005","v18/c005"],
  ["Vol.18 Ch.006","v18/c006"],
  ["Vol.19 Ch.001","v19/c001"],
  ["Vol.19 Ch.002","v19/c002"],
  ["Vol.19 Ch.003","v19/c003"],
  ["Vol.19 Ch.004","v19/c004"]
);

var total_chapters = 51;

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;