var chap_array = new Array(
    ["39 - The Power Gushing Out",'39'],

    ["38 - A Friend of Everybody",'38'],

    ["37 - Items of the Same Type",'37'],

    ["36 - Carnival",'36'],

    ["35 - Operation Begin After 13 Hours",'35'],

    ["34 - Lets All Go For Hospital Visit",'34'],

    ["33 - Don't Give Up!",'33'],

    ["32 - World of the Hayasaka Siblings",'32'],

    ["31 - Disciples",'31'],

    ["30 - Close Battle",'30'],

    ["29 - Getting Along",'29'],

    ["28 - Beginnings of Maturity",'28'],

    ["27 - Survival",'27'],

    ["26 - Training Day",'26'],

    ["25 - The Hayasaka Siblings",'25'],

    ["24 - All the Enemies Must",'24'],

    ["23 - Warrior Tokiko",'23'],

    ["22 - A Night in the Dorms",'22'],

    ["21 - Kazuki and Tokiko's Decision Part3",'21'],

    ["20 - Kazuki and Tokiko's Decision Part2",'20'],

    ["19 - Kazuki and Tokiko's Decision Part1",'19'],

    ["18 - If you think you might be a faker",'18'],

    ["17 - Fade to Black",'17'],

    ["16 - The Butterfly of Death",'16'],

    ["15 - The Darker, the Hotter, The Sweeter",'15'],

    ["14 - Midnight Run 2",'14'],

    ["13 - Vs Washio Sequel",'13'],

    ["12 - Vs Washio Second Part2",'12'],

    ["11 - Vs Washio Second Part1",'11'],

    ["10 - Vs Washio First Part",'10'],

    ["9 - Another New Life",'9'],

    ["8 - Lock On",'8'],

    ["7 - You have become a little stronger",'7'],

    ["6 - VS Kazui - Last Part",'6'],

    ["5 - VS Kazui - First Part",'5'],

    ["4 - The Humonculus Parasite",'4'],

    ["3 - The Humonculus Revealance",'3'],

    ["2 - Midnight run",'2'],

    ["1 - A New Life",'1']
);
for (var i=0; i<chap_array.length; i++) {
    document.getElementById('id_chapter_1').options[i] = new Option(chap_array[i][0],chap_array[i][1]);
    if (document.getElementById('id_chapter_2')) {
        document.getElementById('id_chapter_2').options[i] = new Option(chap_array[i][0],chap_array[i][1]);
    }
}