var chapter_list = new Array(
  ["Vol.01 Ch.001: The Covenant","v01/c001"],
  ["Vol.01 Ch.002: Choice","v01/c002"],
  ["Vol.01 Ch.003: Ruler of the Vampires","v01/c003"],
  ["Vol.01 Ch.004: Interview with a vampire","v01/c004"],
  ["Vol.01 Ch.005: On the night of the carnival","v01/c005"],
  ["Vol.01 Ch.006: Good night, Sleep tight","v01/c006"],
  ["Vol.02 Ch.007: To a new battlefield","v02/c007"],
  ["Vol.02 Ch.008: Lost in High school","v02/c008"],
  ["Vol.02 Ch.009: Sinister Bolero","v02/c009"],
  ["Vol.02 Ch.010: I Can't See You","v02/c010"],
  ["Vol.02 Ch.011: Corrupt Academy","v02/c011"],
  ["Vol.02 Ch.012: Shape Of My Heart","v02/c012"],
  ["Vol.03 Ch.013: A Solemn Promise","v03/c013"],
  ["Vol.03 Ch.014: Moving Shadows","v03/c014"],
  ["Vol.03 Ch.015: Children of the Night","v03/c015"],
  ["Vol.03 Ch.016: Werewolf ~Beowolf~","v03/c016"],
  ["Vol.03 Ch.017: Strategic Chess Game","v03/c017"],
  ["Vol.03 Ch.018: Sacrifice","v03/c018"],
  ["Vol.03 Ch.019: Body and Mind","v03/c019"],
  ["Vol.04 Ch.020: Out of silence","v04/c020"],
  ["Vol.04 Ch.021: The Kings of Darkness","v04/c021"],
  ["Vol.04 Ch.022: Target, Kaburagi Akira","v04/c022"],
  ["Vol.04 Ch.023: The Fresh Blooded Maiden","v04/c023"],
  ["Vol.04 Ch.024: Cross now the river of rage","v04/c024"],
  ["Vol.05 Ch.025: Two in a Town of Darkness","v05/c025"],
  ["Vol.05 Ch.026: Intermedio","v05/c026"],
  ["Vol.05 Ch.027: Sneak the Underground","v05/c027"],
  ["Vol.05 Ch.028: The Honeybee's Whisper","v05/c028"],
  ["Vol.05 Ch.029: The Only Serene Method","v05/c029"],
  ["Vol.05 Ch.030: Cradle Will Rock","v05/c030"],
  ["Vol.05 Ch.031: A Man of Determination","v05/c031"],
  ["Vol.06 Ch.032","v06/c032"],
  ["Vol.06 Ch.033: Standard Daytime","v06/c033"],
  ["Vol.06 Ch.034: The Queen's Werewolf","v06/c034"],
  ["Vol.06 Ch.035: Birds Flying on the Same Wings","v06/c035"],
  ["Vol.06 Ch.036: Passion Play","v06/c036"],
  ["Vol.06 Ch.037: What a Wonderful World!","v06/c037"],
  ["Vol.07 Ch.038: DEMON SEED","v07/c038"],
  ["Vol.07 Ch.039: THE WOLF'S CREST","v07/c039"],
  ["Vol.07 Ch.040: The Mark Of The Wolf","v07/c040"],
  ["Vol.07 Ch.041: The Wolves' Afternoon","v07/c041"],
  ["Vol.07 Ch.042: The Wolf's Lament","v07/c042"],
  ["Vol.07 Ch.043: Wolf, Never Cry","v07/c043"],
  ["Vol.08 Ch.044: Visitors","v08/c044"],
  ["Vol.08 Ch.049","v08/c049"]
);

var total_chapters = 45;

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;