var chap_array = new Array(
    ["36 - One Person and Two Others",'36'],

    ["35 - The Wounds of Two People",'35'],

    ["34 - The Price of a Practical Joke",'34'],

    ["33 - Shoulder Blade",'33'],

    ["32 - An Opportunity",'32'],

    ["31 - Natsuki and Ancient Martial Arts",'31'],

    ["30 - Ancient Martial Arts Training",'30'],

    ["29 - Sanada's Strategy",'29'],

    ["28 - The Mayor's Present",'28'],

    ["27 - Starting Over",'27'],

    ["26 - Conclusion",'26'],

    ["25 - Disappearing Fire",'25'],

    ["24 - A Few Minutes",'24'],

    ["23 - I'm Not Alone",'23'],

    ["22 - Cheer Up!",'22'],

    ["21 - We'll Take Back What Was Taken From Us",'21'],

    ["20 - Competing Thoughts",'20'],

    ["19 - We Must Not Lose",'19'],

    ["18 - Just Enemies",'18'],

    ["17 - Bad Boy",'17'],

    ["16 - Excuses",'16'],

    ["15 - Shell",'15'],

    ["14 - Highschool Freshman Year",'14'],

    ["13 - Taste of Lemon",'13'],

    ["12 - Two Kinds of Future",'12'],

    ["11 - Revival",'11'],

    ["10 - Confession",'10'],

    ["9 - Idle",'9'],

    ["8 - Proof",'8'],

    ["7 - Misunderstanding",'7'],

    ["6 - Normal Weapon",'6'],

    ["5 - Basket Boys in Spa",'5'],

    ["4 - The Reason For Being No1",'4'],

    ["3 - A New Member",'3'],

    ["2 - New Beginning",'2'],

    ["1 - Honey Lemon",'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]);
    }
}