var chapter_list = new Array(
  ["Ch.001: The Myth Begins","c001"],
  ["Ch.002: Rimudo: The Merciless Wind Slasher","c002"],
  ["Ch.003: The Decision of The Fated Star","c003"],
  ["Ch.004: The Maiden of Givpa","c004"],
  ["Ch.005: The Star of the Barrier","c005"],
  ["Ch.006: Song of the Gondola","c006"],
  ["Ch.007: The Legendary Origin Stone","c007"],
  ["Ch.008: Tears from a Stone Wall","c008"],
  ["Ch.009: Kissed by the Wind","c009"],
  ["Ch.010: By Your Side","c010"],
  ["Ch.011: Frozen Land of Lamentation","c011"],
  ["Ch.012: Oblivion Resolved","c012"],
  ["Ch.013: Awakened Love","c013"],
  ["Ch.014: The Festival of Love","c014"],
  ["Ch.015: The Destination of The Stars","c015"],
  ["Ch.016: Chaos in The Red Light District","c016"],
  ["Ch.017","c017"],
  ["Ch.018","c018"],
  ["Ch.019","c019"],
  ["Ch.020","c020"],
  ["Ch.021: Crying Valley","c021"],
  ["Ch.022","c022"],
  ["Ch.023","c023"],
  ["Ch.024","c024"],
  ["Ch.025: Meeting In The Hidden Forest","c025"],
  ["Ch.026","c026"],
  ["Ch.027: The Distant Separation","c027"],
  ["Ch.028","c028"],
  ["Ch.029: The Place You Call Home","c029"],
  ["Ch.030: To Where You Are","c030"],
  ["Ch.031: Many Descending Thoughts","c031"]
);

var total_chapters = 31;

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;