var chapter_list = new Array(
  ["Vol.01 Ch.001: The Black Angel and the Silver Princess","v01/c001"],
  ["Vol.01 Ch.002: Guardian of the Flower Field","v01/c002"],
  ["Vol.01 Ch.003: The Gang of Children","v01/c003"],
  ["Vol.01 Ch.004: The Voice that echoes in the Darkness","v01/c004"],
  ["Vol.01 Ch.005: 3+1=5","v01/c005"],
  ["Vol.02 Ch.006: Secret of Honeycomb Mansion (1)","v02/c006"],
  ["Vol.02 Ch.007: Secret of Honeycomp Mansion (2)","v02/c007"],
  ["Vol.02 Ch.008: Desert Rose","v02/c008"],
  ["Vol.02 Ch.008.1: Dances of the Purple Rocks","v02/c008.1"],
  ["Vol.02 Ch.008.2: Sees a Dream in the Sea","v02/c008.2"],
  ["Vol.02 Ch.008.3: Shines in the Darkness","v02/c008.3"],
  ["Vol.03 Ch.009: Wings of the Wind (1)","v03/c009"],
  ["Vol.03 Ch.010: Wings of the Wind (2)","v03/c010"],
  ["Vol.03 Ch.011: Guardian Heart (1)","v03/c011"],
  ["Vol.03 Ch.012: Guardian Heart (2)","v03/c012"],
  ["Vol.03 Ch.013: Husky's Depression","v03/c013"],
  ["Vol.03 Ch.014: Scar","v03/c014"],
  ["Vol.04 Ch.015: Maggie Coliseum (1)","v04/c015"],
  ["Vol.04 Ch.016: Maggie Coliseum (2)","v04/c016"],
  ["Vol.04 Ch.017: Maggie Coliseum (3)","v04/c017"],
  ["Vol.04 Ch.018: Maggie Coliseum (4)","v04/c018"],
  ["Vol.04 Ch.019: Maggie Coliseum (5)","v04/c019"],
  ["Vol.04 Ch.020: Little Flower","v04/c020"],
  ["Vol.05 Ch.021: Contact","v05/c021"],
  ["Vol.05 Ch.022: House of Apples","v05/c022"],
  ["Vol.05 Ch.023: The Boy who loved a Mermaid 1","v05/c023"],
  ["Vol.05 Ch.024: The Boy who loved a Mermaid 2","v05/c024"],
  ["Vol.05 Ch.025: Teddy Bear","v05/c025"],
  ["Vol.05 Ch.026: Moss Mountain","v05/c026"],
  ["Vol.06 Ch.027: Sleepy One","v06/c027"],
  ["Vol.06 Ch.028: Diary of the Tree Leaking Day","v06/c028"],
  ["Vol.06 Ch.029: Crazy Beast","v06/c029"],
  ["Vol.06 Ch.030: What You Protect","v06/c030"],
  ["Vol.06 Ch.031: The Mountain Turns","v06/c031"],
  ["Vol.06 Ch.032: Story in the Snow","v06/c032"],
  ["Vol.07 Ch.033: Dark Tunnel","v07/c033"],
  ["Vol.07 Ch.034: Crystal and Daisy","v07/c034"],
  ["Vol.07 Ch.035: Law of Sairando","v07/c035"],
  ["Vol.07 Ch.036: Market","v07/c036"],
  ["Vol.07 Ch.037: Wish","v07/c037"],
  ["Vol.07 Ch.038: Six Years Ago","v07/c038"],
  ["Vol.08 Ch.039: Stella","v08/c039"],
  ["Vol.08 Ch.040: The Green House","v08/c040"],
  ["Vol.08 Ch.041: Midnight Confession","v08/c041"],
  ["Vol.08 Ch.042: Mystery Tour of the Royal Castle","v08/c042"],
  ["Vol.08 Ch.043: Stairway Capture","v08/c043"],
  ["Vol.08 Ch.044: Black Talons","v08/c044"],
  ["Vol.09 Ch.000","v09/c000"],
  ["Vol.10 Ch.000","v10/c000"]
);

var total_chapters = 49;

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;