(function($) {
    var img_path = [];
    img_path[0] = "/img/header/visual_01.jpg";
    img_path[1] = "/img/header/visual_02.jpg";
    img_path[2] = "/img/header/visual_03.jpg";
    img_path[3] = "/img/header/visual_04.jpg";
    img_path[4] = "/img/header/visual_05.jpg";
    img_path[5] = "/img/header/visual_06.jpg";
    img_path[6] = "/img/header/visual_07.jpg";
    img_path[7] = "/img/header/visual_08.jpg";
    img_path[8] = "/img/header/visual_09.jpg";
    img_path[9] = "/img/header/visual_10.jpg";
    img_path[10] = "/img/header/visual_11.jpg";
    img_path[11] = "/img/header/visual_12.jpg";
    n = Math.floor(Math.random() * img_path.length);
    $('.visual').append($('<img />').attr('src', img_path[n]).attr('border', 0));
})(jQuery);