var interval = 2000; 
var random_display = 0;
var image_dir = "images/slideshow/";
var ImageNum = 0;
imageArray = new Array();

imageArray[ImageNum++] = new imageItem(image_dir + "Bridaluxe-190x200-2.jpg");
imageArray[ImageNum++] = new imageItem(image_dir + "Bridaluxe-190x200-3.jpg");
imageArray[ImageNum++] = new imageItem(image_dir + "Bridaluxe-190x200-4.jpg");
imageArray[ImageNum++] = new imageItem(image_dir + "Bridaluxe-190x200-5.jpg");
imageArray[ImageNum++] = new imageItem(image_dir + "Bridaluxe-190x200-6.jpg");
imageArray[ImageNum++] = new imageItem(image_dir + "homestar.jpg");

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

function getNextImage() {
        if (random_display) {
                ImageNum = randNum(0, number_of_images-1);
        } else {
                ImageNum = (ImageNum+1) % number_of_images;
        }
        var new_image = get_ImageItemLocation(imageArray[ImageNum]);
        return(new_image);
}

function getPrevImage() {
        if (ImageNum == 0) {
                ImageNum = (number_of_images-1);
        } else {
                ImageNum = (ImageNum-1);
        }
        
        var new_image = get_ImageItemLocation(imageArray[ImageNum]);
        return(new_image);
}

function prevImage(place) {
        var new_image = getPrevImage();
        var oImg = this.document.getElementById(place);
        oImg.src = new_image;
}

function rotateImage(place) {
        var new_image = getNextImage();
        var oImg = this.document.getElementById(place);
        oImg.src = new_image;
        var recur_call = "rotateImage('"+place+"')";
        timerID = setTimeout(recur_call, interval);
}