var chap_array = new Array(
    ["54 - Final D-ASH",'54'],

    ["53 - Bonds",'53'],

    ["52 - Lunar Park",'52'],

    ["51 - Continuation of a Dream",'51'],

    ["50 - Last Race",'50'],

    ["49 - Thoughts of Love",'49'],

    ["48 - Cruel Adolescence",'48'],

    ["47 - Begin",'47'],

    ["46 - Bouquet",'46'],

    ["45 - Attack",'45'],

    ["44 - Kiss",'44'],

    ["43 - Thank You Very Much",'43'],

    ["42 - Rabbit",'42'],

    ["41 - Because You're Here",'41'],

    ["40 - I'm Sorry",'40'],

    ["39 - I'll Do It",'39'],

    ["38 - You Live by Loving and Being Loved",'38'],

    ["37 - Jungle",'37'],

    ["36 - Lucky Great!",'36'],

    ["35 - Togther",'35'],

    ["34 - Alice Part2",'34'],

    ["33 - Alice Part1",'33'],

    ["32 - Diamond",'32'],

    ["31 - Dream",'31'],

    ["30 - Promise",'30'],

    ["29 - Today is Goodbye",'29'],

    ["28 - Childhood Love",'28'],

    ["27 - What Happens to Us Now",'27'],

    ["26 - Friendship is Ok",'26'],

    ["25 - No",'25'],

    ["24 - Thing I Want to Protect",'24'],

    ["23 - Park Cemetery",'23'],

    ["22 - Common World",'22'],

    ["21 - Invitation",'21'],

    ["20 - 10years after",'20'],

    ["19 - Sex, Drug, Sprint",'19'],

    ["18 - Reunion",'18'],

    ["17 - More than Twenty years old",'17'],

    ["16 - Bye Bye Bye",'16'],

    ["15 - Don't be too sure yet!",'15'],

    ["14 - Track team at night",'14'],

    ["13 - The link between us",'13'],

    ["12 - Future after 6 minutes",'12'],

    ["11 - Osaka of two People",'11'],

    ["10 - Re-habilitate",'10'],

    ["9 - I want to meet Sae",'9'],

    ["8 - Signs from Summer Break",'8'],

    ["7 - Be an Adult, fast",'7'],

    ["6 - Because I Like you",'6'],

    ["5 - 18th Birthday",'5'],

    ["4 - Ah1 Maybe it is like that",'4'],

    ["3 - What! How's it like that",'3'],

    ["2 - It's all like that",'2'],

    ["1 - Tsukasa, 11 Years Old",'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]);
    }
}