var chapter_list = new Array(
  ["Vol.01 Ch.005: Battle Cap","v01/c005"],
  ["Vol.01 Ch.006: Honest Feelings","v01/c006"],
  ["Vol.01 Ch.007: The Unexpected Guest","v01/c007"],
  ["Vol.02 Ch.008: A Worrisome Youth","v02/c008"],
  ["Vol.02 Ch.009: Unexpected Face","v02/c009"],
  ["Vol.02 Ch.010: Advance and Anxiety","v02/c010"],
  ["Vol.02 Ch.011: The Greatest Girl","v02/c011"],
  ["Vol.02 Ch.012: The Declaration of War","v02/c012"],
  ["Vol.02 Ch.013: Intertwined Thoughts","v02/c013"],
  ["Vol.03 Ch.014: Battlefront of Love","v03/c014"],
  ["Vol.03 Ch.015: The Maiden in Love","v03/c015"],
  ["Vol.03 Ch.016: Her Confession","v03/c016"],
  ["Vol.03 Ch.017: A Moment of Happiness","v03/c017"],
  ["Vol.03 Ch.018: The Darkest Hour","v03/c018"],
  ["Vol.03 Ch.019: A Piece of Advice","v03/c019"],
  ["Vol.04 Ch.020: The One Conclusion","v04/c020"],
  ["Vol.04 Ch.021: The Beginning and the End","v04/c021"],
  ["Vol.04 Ch.022: Searching for Happiness","v04/c022"],
  ["Vol.04 Ch.023: His Conviction","v04/c023"],
  ["Vol.04 Ch.024: One Step Forward","v04/c024"],
  ["Vol.05 Ch.025: The Different Path","v05/c025"],
  ["Vol.05 Ch.026: Distress and Resignation","v05/c026"],
  ["Vol.05 Ch.027: The Me Qualities","v05/c027"],
  ["Vol.05 Ch.028: Dream, Desire, and Then...","v05/c028"],
  ["Vol.05 Ch.029: Jealousy","v05/c029"],
  ["Vol.06 Ch.030: The Fear Within Your Heart","v06/c030"],
  ["Vol.06 Ch.031: Confession","v06/c031"],
  ["Vol.06 Ch.032: What I Continue Searching For","v06/c032"],
  ["Vol.06 Ch.033: Determination","v06/c033"],
  ["Vol.06 Ch.034: The Disappeared Hesitation","v06/c034"],
  ["Vol.06 Ch.035: The Happiness Right Beside You","v06/c035"],
  ["Vol.07 Ch.036: Chance Encounter","v07/c036"],
  ["Vol.07 Ch.037: Friends","v07/c037"],
  ["Vol.07 Ch.038: The Truth","v07/c038"],
  ["Vol.07 Ch.039: Memory","v07/c039"]
);

var total_chapters = 35;

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;