// Javascript File
var interval = 4.0; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
interval *= 1000;

var image_index = 0;
image_list = new Array();
theImagesAlt = new Array();
image_list[image_index++] = new imageItem("images_templ/three_col/indian_remy_curly.jpg");
image_list[image_index++] = new imageItem("images_templ/three_col/indian_remy_straight.jpg");
image_list[image_index++] = new imageItem("images_templ/three_col/indian_remy_straight_long.jpg");
image_list[image_index++] = new imageItem("images_templ/three_col/indian_remy_wavy.jpg");

theImagesAlt[0] = "Indian Remy Curly";
theImagesAlt[1] = "Indian Remy Straight";
theImagesAlt[2] = "Indian Remy Straight and Long";
theImagesAlt[3] = "Indian Remy Wavy";

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;
    document[place].alt = theImagesAlt[image_index];
    var recur_call = "rotateImage('"+place+"')";
    setTimeout(recur_call, interval);
}