var chap_array = new Array(
    ["19 - One Last Factor",'19/01'],

    ["18 - Imagination Tyrant",'18/01'],

    ["17 - The Worst After-school Break",'17/01'],

    ["16 - Supernova",'16/00-cover'],

    ["15 - Overdrive",'15/01'],

    ["14 - Blossoms Fall, Leaves Scatter",'14/01'],

    ["13 - Black Chamber",'13/01'],

    ["12 - Blue Sky Moon",'12/01'],

    ["11 - Steel Flower",'11/00-cover'],

    ["10 - Bright Night",'10/01'],

    ["9 - Sprinting Justice",'9/01'],

    ["8 - Guide Towards Tomorrow",'8/01'],

    ["7 - After the Devil's Way",'7/01'],

    ["6 - Angry Factor",'6/00-cover'],

    ["5 - The Compensation for Justice is Life",'5/01'],

    ["4 - Respective Decisions",'4/01'],

    ["3 - Trembles of the Inexperienced",'3/01'],

    ["2 - The Overcome Boundary",'2/01'],

    ["1 - Kurogane and the Boy",'1/00']
);
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]);
    }
}