var chap_array = new Array(
    ["34 - 1v1",'34'],

    ["33 - 1vs2",'33'],

    ["32 - 2v2 3",'32'],

    ["31 - 2v2 2",'31'],

    ["30 - 2v2",'30'],

    ["29 - 3vs2",'29'],

    ["28 - 3vs3 4",'28'],

    ["27 - 3v3 3",'27'],

    ["26 - 3v3 2",'26'],

    ["25 - 3v3",'25'],

    ["24 - 3vs4",'24'],

    ["23 - 4vs4 2",'23'],

    ["22 - 4vs4",'22'],

    ["21 - 20",'21'],

    ["20 - 5vs5 3",'20'],

    ["19 - 5vs5 2",'19'],

    ["18 - 5vs5",'18'],

    ["17 - 5vs6 2",'17'],

    ["16 - 5vs6",'16'],

    ["15 - 5vs7 4",'15'],

    ["14 - 5vs7 3",'14'],

    ["13 - 5vs7 2",'13'],

    ["12 - 5vs7",'12'],

    ["11 - 6vs7",'11'],

    ["10 - 6vs8",'10'],

    ["9 - 6vs9 3",'9'],

    ["8 - 6vs9 2",'8'],

    ["7 - 6vs9",'7'],

    ["6 - 7vs9 2",'6'],

    ["5 - 7vs9",'5'],

    ["4 - 9vs9 3",'4'],

    ["3 - 9vs9 2",'3'],

    ["2 - 9vs9",'2'],

    ["1 - 10vs10",'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]);
    }
}