var chap_array = new Array(
    ["16 - Goat, Jihad, Rock n Roll",'16'],

    ["15 - Bloodsport Fairy Tale Part 5",'15'],

    ["14 - Bloodsport Fairy Tale Part 4",'14'],

    ["13 - Bloodsport Fairy Tale Part 3",'13'],

    ["12 - Bloodsport Fairy Tale Part 2",'12'],

    ["11 - Bloodsport Fairy Tale Part 1",'11'],

    ["10 - Calm Down, Two Men Part 2",'10'],

    ["9 - Calm Down, Two Men Part 1",'9'],

    ["8 - Das Wieder Erstephen Des Adlers Part 4",'8'],

    ["7 - Das Wieder Erstephen Des Adlers Part 3",'7'],

    ["6 - Das Wieder Erstephen Des Adlers Part 2",'6'],

    ["5 - Das Wieder Erstephen Des Adlers Part 1",'5'],

    ["4 - Rasta Blasta Part4",'4'],

    ["3 - Rasta Blasta Part2",'3'],

    ["2 - Rasta Blasta Part1",'2'],

    ["1 - Chase for Ring-ding Ships",'1'],

    ["0 - Black Lagoon",'0']
);
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]);
    }
}