var chap_array = new Array(
    ["41 - Thug Saurus",'41'],

    ["40 - Terrorist Saurus",'40'],

    ["39 - Transformed Saurus",'39'],

    ["38 - Baby Saurus",'38'],

    ["37 - Napping Saurus",'37'],

    ["36 - Saurus Remodeling Project",'36'],

    ["35 - Devilish Saurus",'35'],

    ["34 - Sexy Saurus",'34'],

    ["33 - Targeted Saurus",'33'],

    ["32 - Sister-in-law Saurus",'32'],

    ["31 - Invincible Saurus",'31'],

    ["30 - Pretty Saurus",'30'],

    ["29 - Flaming Saurus",'29'],

    ["28 - Fake Saurus",'28'],

    ["27 - Boxed Saurus",'27'],

    ["26 - Santa Saurus",'26'],

    ["25 - Storm Saurus",'25'],

    ["24 - Glutton Saurus",'24'],

    ["23 - Occult Saurus",'23'],

    ["22 - Saurus Battle",'22'],

    ["21 - Ambitious Saurus",'21'],

    ["20 - Saurus Invasion",'20'],

    ["19 - Triple Saurus",'19'],

    ["18 - Hell Saurus",'18'],

    ["17 - Saurus",'17'],

    ["16 - Silver Saurus",'16'],

    ["15 - Clumsy Saurus",'15'],

    ["14 - Little Saurus",'14'],

    ["13 - Angel Saurus",'13'],

    ["12 - Service Saurus",'12'],

    ["11 - Condolence Saurus",'11'],

    ["10 - Saurus Festival",'10'],

    ["9 - Summer Saurus - Second Part",'9'],

    ["8 - Summer Saurus - First Part",'8'],

    ["7 - Strange Saurus Level 15",'7'],

    ["6 - Lyrical Saurus",'6'],

    ["5 - Dinosaur Academy",'5'],

    ["4 - Revenge of the Saurus",'4'],

    ["3 - Queen Dinosaur",'3'],

    ["2 - Madonna Dinosaur",'2'],

    ["1 - Dinosaur's Compensation",'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]);
    }
}