var chapter_list = new Array(
  ["Vol.01 Ch.001: The Hot Spring And The Guardian Deity","v01/c001"],
  ["Vol.01 Ch.002: The God Likes Hot Things","v01/c002"],
  ["Vol.01 Ch.003: A Great Victory and Defeat Due to the God of Poverty!","v01/c003"],
  ["Vol.01 Ch.004: Descent Upon the School","v01/c004"],
  ["Vol.01 Ch.005: God Of Pestilence Pandemic!","v01/c005"],
  ["Vol.01 Ch.006: Matchmaking! Cat God Power","v01/c006"],
  ["Vol.01 Ch.007: Kiss of Calamity!?","v01/c007"],
  ["Vol.01 Ch.008: A Submerged Hot Spring!?","v01/c008"],
  ["Vol.02 Ch.009: The Final Day of the Izumi Family!?","v02/c009"],
  ["Vol.02 Ch.010: Konoha's Counter Attack!?","v02/c010"],
  ["Vol.02 Ch.011: The Junichirou Collection of Temptation","v02/c011"],
  ["Vol.02 Ch.012: The Two Rivals","v02/c012"],
  ["Vol.02 Ch.013: Learning And Goddesses","v02/c013"],
  ["Vol.02 Ch.014: Goddess of Disaster Summer Festival !?","v02/c014"],
  ["Vol.02 Ch.015: Izumi Onsen Drifting Account","v02/c015"]
);

var total_chapters = 15;

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;