var interval = 6.25; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
var currentImageIndex = null;
interval *= 1000;

//setup images
var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic001.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic002.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic003.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic004.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic005.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic006.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic007.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic008.jpg");
image_list[image_index++] = new imageItem("aeimages/Image/slides/"+prefix+"pic009.jpg");
var number_of_image = image_list.length;

//setup filters - for IE
var filter_index = 0;
filter_list = new Array();
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.Barn(duration=2)';
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.RandomDissolve(duration=2)';
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.CheckerBoard(duration=2)';
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.Iris(duration=2, irisStyle=CIRCLE)';
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.Fade(duration=2)';
filter_list[filter_index++] = 'progid:DXImageTransform.Microsoft.Pixelate(duration=2, maxSquare=20)';
var number_of_filter = filter_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)
	{
		do
		{
			image_index = generate(0, number_of_image-1);
		}
		while (image_index == currentImageIndex); 
	}
	else {
		image_index = (image_index+1) % number_of_image;
	}
	
	currentImageIndex = image_index;
	
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
}

function rotateImage(place) {
	var new_image = getNextImage();
	filter_index = generate(0, number_of_filter-1);
	document[place].style.filter = filter_list[filter_index];
	try {document[place].filters[0].apply();} catch(e) { }
	document[place].src = new_image; 
	fadein(0.04);
	try {document[place].filters[0].play();} catch (e) { }
	
	var recur_call = "rotateImage('"+place+"')";
	setTimeout(recur_call, interval);
}