var interval = 10; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
interval *= 1000;

var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("img_rotate/amari.jpg");
image_list[image_index++] = new imageItem("img_rotate/gws.jpg");
image_list[image_index++] = new imageItem("img_rotate/kaessbohrer.jpg");
image_list[image_index++] = new imageItem("img_rotate/kaindl.jpg");
image_list[image_index++] = new imageItem("img_rotate/leube.jpg");
image_list[image_index++] = new imageItem("img_rotate/liebherr.jpg");
image_list[image_index++] = new imageItem("img_rotate/maco.jpg");
image_list[image_index++] = new imageItem("img_rotate/miele.jpg");
image_list[image_index++] = new imageItem("img_rotate/siemens.jpg");
image_list[image_index++] = new imageItem("img_rotate/wh.jpg");
var number_of_image = image_list.length;

function imageItem(image_location) 
{
    this.image_item = new Image();
    this.image_item.src = image_location;
}

function get_ImageItemLocation(imageObj) 
{
    return(imageObj.image_item.src)
}

function generate(x, y) 
{
    var range = y - x + 1;
    return Math.floor(Math.random() * range) + x;
}

function getNextImage() 
{
    if (random_display) 
    {
        image_index = generate(0, number_of_image-1);
    }
    else 
    {
        image_index = (image_index+1) % number_of_image;
    }
    var new_image = get_ImageItemLocation(image_list[image_index]);
    return(new_image);
}

function rotateImage(place) 
{
    var new_image = getNextImage();
    document[place].src = new_image;
    var recur_call = "rotateImage('"+place+"')";
    setTimeout(recur_call, interval);
}