img = new Array();
img[0] = "my_photo_01.jpg";
img[1] = "my_photo_02.jpg";
img[2] = "my_photo_03.jpg";
img[3] = "my_photo_04.jpg";
img[4] = "my_photo_05.jpg";
img[5] = "my_photo_06.jpg";
img[6] = "my_photo_07.jpg";
img[7] = "my_photo_08.jpg";
img[8] = "my_photo_09.jpg";
n = Math.floor(Math.random()*img.length);
document.write("<img class='profileimg' src='images/"+img[n]+"' alt='こんな感じの奴です' width='120' height='160' name='myphoto' />");