var chap_array = new Array(
    ["21 - Conjuring",'21/01'],

    ["20 - Union",'20/01'],

    ["19 - Resistance",'19/01'],

    ["18 - Agreement",'18/01'],

    ["17 - The Request",'17/01'],

    ["16 - Two Strings",'16/01'],

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

    ["14 - A Trick",'14/01'],

    ["13 - Decision",'13/01'],

    ["12 - Rescue",'12/01'],

    ["11 - Baptism",'11/01'],

    ["10 - Release",'10/01'],

    ["9 - Fulfillment",'9/01'],

    ["8 - Encircled",'8/01'],

    ["7 - Crash",'7/01'],

    ["6 - Connection",'6/01'],

    ["5 - Cycle",'5/01'],

    ["4 - Control",'4/01'],

    ["3 - The Last Testament",'3/01'],

    ["2 - The Magic Sword",'2/01'],

    ["1 - The Prophecy",'1/01']
);
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]);
    }
}