var img = new Image();
img.src = "head_img1.jpg";
img.src = "head_img2.jpg";
img.src = "head_img3.jpg";
img.src = "head_img4.jpg";
img.src = "head_img5.jpg";
img.src = "natasha.jpg";
img.src = "susan.jpg";
img.src = "iva.jpg";

function rand(min, max) {
    if (max) {
        return Math.floor(Math.random() * (max - min + 1)) + min;
    } else {
        return Math.floor(Math.random() * (min + 1));
    }
}