var count = 0;
var pics = new Array;
pics[0] = new Image;
pics[0].src = 'images/muto_shizuka02.jpg';
pics[1] = new Image;
pics[1].src = 'images/muto_shizuka04.jpg';
pics[2] = new Image;
pics[2].src = 'images/muto_shizuka09.jpg';
pics[3] = new Image;
pics[3].src = 'images/muto_shizuka10.jpg';
pics[4] = new Image;
pics[4].src = 'images/muto_shizuka06.jpg';
function change_pic() {
    new Effect.Fade($("pic_box"));
    ++count;
    if (count > 4) count = 0;
}
function appear() {
    new Effect.Appear($("pic_box"));
}
function start_timer() {
    setTimeout('change_pic()', 8000);
    setTimeout('change_source()', 11000);
}
function change_source() {
    document.getElementById("muto_pic").src = pics[count].src;
    appear();
    start_timer();
}