var interval = 4.5; // delay between rotating images (in seconds)

var random_display = 0; // 0 = no, 1 = yes

interval *= 1000;

var image_index = 0;

image_list = new Array();

image_list[image_index++] = new imageItem("http://b02.s3.amazonaws.com/JessBH02z.jpg");
image_list[image_index++] = new imageItem("http://b02.s3.amazonaws.com/WingedHeronz100.jpg");
image_list[image_index++] = new imageItem("http://b02.s3.amazonaws.com/trippics/Izona111806z180.jpg");
image_list[image_index++] = new imageItem("http://b02.s3.amazonaws.com/Albums/Bibilt/BH18x7profilez180.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);
}