function image() {
    var number = 0;
    // imageArray
    image[number++] = "<img src='/img/bg20.jpg'/>"
    image[number++] = "<img src='/img/bg20.jpg'/>"
    image[number++] = "<img src='/img/bg20.jpg'/>"
    image[number++] = "<img src='/img/bg21.jpg'/>"
    image[number++] = "<img src='/img/bg22.jpg'/>"
    image[number++] = "<img src='/img/bg25.jpg'/>"
//    image[number++] = "<img src='/img/bg26.jpg'/>"
    image[number++] = "<img src='/img/bg5.jpg'/>"
//    image[number++] = "<img src='/img/bg2bw.jpg'/>"
//    image[number++] = "<img src='/img/bg1bw.jpg'/>"
    image[number++] = "<img src='/img/bg2col.jpg'/>"
    image[number++] = "<img src='/img/bg2bw2.jpg'/>"
//    image[number++] = "<img src='/img/bg10.jpg'/>"
//    image[number++] = "<img src='/img/bg11.jpg'/>"
    image[number++] = "<img src='/img/bg1.jpg'/>"
    var increment = Math.floor(Math.random() * number);
    return increment;
}