var chap_array = new Array(
    ["11 - Reunion, Endymion",'11/01'],

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

    ["9 - Serenity, Princess",'9/01'],

    ["8 - Minako, Sailor V",'8/01'],

    ["7 - Chiba Mamoru, Tuxedo Mask",'7/00'],

    ["6 - Tuxedo Kamen, Tuxedo Mask",'6/01-02'],

    ["5 - Makoto, Sailorjupiter",'5/01'],

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

    ["3 - Rei, Sailormars",'3/01'],

    ["2 - Ami, Sailormercury",'2/01'],

    ["1 - Usagi, Sailormoon",'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]);
    }
}