var chap_array = new Array(
    ["30 - Not Even Spring But",'30'],

    ["29 - Kiss Riot",'29'],

    ["28 - Romantic Elopement",'28'],

    ["27 - Grieving Young Mister Princess",'27'],

    ["26 - Onee-chan's Love",'26'],

    ["25 - Everyone's Song",'25'],

    ["24 - It Keeps Getting Weirder",'24'],

    ["23 - Takatsuki Yashino's Determination",'23'],

    ["22 - A Date on Sunday",'22'],

    ["21 - A New Friend",'21'],

    ["20 - Half in Frenzy",'20'],

    ["19 - A Hectic Day",'19'],

    ["18 - Together with Onee-chan",'18'],

    ["17 - School Trip - Day 2",'17'],

    ["16 - School Trip - Day 1",'16'],

    ["15 - School Trip - The Day Before",'15'],

    ["14 - A Strange Pair",'14'],

    ["13 - Grade School Student Diary",'13'],

    ["12 - Girl Under Stress",'12'],

    ["11 - You Poor Girl",'11'],

    ["10 - Hopes and Dreams",'10'],

    ["9 - Love and a Hairpiece",'9'],

    ["8 - Everything I Want",'8'],

    ["7 - Takatsuki-san's Misfortune",'7'],

    ["6 - Words of a Friend",'6'],

    ["5 - Nitori-kun's Birthday",'5'],

    ["4 - Transient Daughter",'4'],

    ["3 - Oscar and Andre",'3'],

    ["2 - Forever a Transient Son",'2'],

    ["1 - I Am a Girl",'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]);
    }
}