var chapter_list = new Array(
  ["Vol.01 Ch.001: Aki and Sora","v01/c001"],
  ["Vol.01 Ch.002: The Two Soras","v01/c002"],
  ["Vol.01 Ch.003: Hide and Seek","v01/c003"],
  ["Vol.01 Ch.004.1: A Certain Adventure","v01/c004.1"],
  ["Vol.01 Ch.004.2: Some Like It Hot","v01/c004.2"],
  ["Vol.02 Ch.005: Welcome Home","v02/c005"],
  ["Vol.02 Ch.006: Sunday Lovers","v02/c006"],
  ["Vol.02 Ch.007: That Feeling that I Want to Express.....","v02/c007"],
  ["Vol.02 Ch.008: That Hateful Thing That Cannot Be Fulfilled","v02/c008"],
  ["Vol.02 Ch.009: When the Rain Has Stopped","v02/c009"],
  ["Vol.03 Ch.010: Part Time Lovers","v03/c010"],
  ["Vol.03 Ch.011: Paint & Swimwear","v03/c011"],
  ["Vol.03 Ch.012: Alice-oneesama's Secret","v03/c012"],
  ["Vol.03 Ch.013: Red Thread","v03/c013"],
  ["Vol.03 Ch.014: Private Lesson","v03/c014"],
  ["Vol.03 Ch.015: The Secret of Twins","v03/c015"],
  ["Vol.04 Ch.016: Kana and Sora","v04/c016"],
  ["Vol.04 Ch.017: Mother","v04/c017"],
  ["Vol.04 Ch.018: Princess and Hero","v04/c018"],
  ["Vol.04 Ch.019: Somewhere Beyond","v04/c019"],
  ["Vol.04 Ch.020: After School Sketch","v04/c020"],
  ["Vol.05 Ch.021: God is Watching","v05/c021"],
  ["Vol.05 Ch.022: The Ideal Couple","v05/c022"],
  ["Vol.05 Ch.023: Nudity and Art","v05/c023"],
  ["Vol.05 Ch.024: Secret Revealed","v05/c024"],
  ["Vol.05 Ch.025: To Pass on Feelings","v05/c025"],
  ["Vol.06 Ch.026: Family Time","v06/c026"]
);

var total_chapters = 27;

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;