var interval = 1100; 
var random_display = 0;
var p1_image_dir = "/images-(1)/phase1-";
var p2_image_dir = "/images-(1)/phase2-";
var p3_image_dir = "/images-(1)/phase3-";

var ImageNum = 0;
var p1_ImageNum = 0;
var p2_ImageNum = 0;
var p3_ImageNum = 0;

p1_imageArray = new Array();
p2_imageArray = new Array();
p3_imageArray = new Array();
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "1.aspx");
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "2.aspx");
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "3.aspx");
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "4.aspx");
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "5.aspx");
p1_imageArray[p1_ImageNum++] = new imageItem(p1_image_dir + "6.aspx");

p2_imageArray[p2_ImageNum++] = new imageItem(p2_image_dir + "1.aspx");
p2_imageArray[p2_ImageNum++] = new imageItem(p2_image_dir + "2.aspx");
p2_imageArray[p2_ImageNum++] = new imageItem(p2_image_dir + "3.aspx");
p2_imageArray[p2_ImageNum++] = new imageItem(p2_image_dir + "4.aspx");
p2_imageArray[p2_ImageNum++] = new imageItem(p2_image_dir + "5.aspx");

p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "1.aspx");
p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "2.aspx");
p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "3.aspx");
p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "4.aspx");
p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "5.aspx");
p3_imageArray[p3_ImageNum++] = new imageItem(p3_image_dir + "6.aspx");

var p1_number_of_image = p1_imageArray.length;
var p2_number_of_image = p2_imageArray.length;
var p3_number_of_image = p3_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(place) {
	if (place=="imgphase1"){
		p1_ImageNum = (p1_ImageNum+1) % p1_number_of_image;
		var new_image = get_ImageItemLocation(p1_imageArray[p1_ImageNum]);
		return(new_image);
	}
	else if (place=="imgphase2"){
		p2_ImageNum = (p2_ImageNum+1) % p2_number_of_image;
		var new_image = get_ImageItemLocation(p2_imageArray[p2_ImageNum]);
		return(new_image);
	}
	else if (place=="imgphase3"){
		p3_ImageNum = (p3_ImageNum+1) % p3_number_of_image;
		var new_image = get_ImageItemLocation(p3_imageArray[p3_ImageNum]);
		return(new_image);
	}
	else
	{
	}
//	if (random_display) {
//		ImageNum = randNum(0, number_of_image-1);
//	}
//	else {
//		ImageNum = (ImageNum+1) % number_of_image;
//	}

}

function getPrevImage(place) {
	if (place=="imgphase1"){
		p1_ImageNum = (p1_ImageNum-1) % p1_number_of_image;
		var new_image = get_ImageItemLocation(p1_imageArray[p1_ImageNum]);
		return(new_image);
	}
	else if (place=="imgphase2"){
		p2_ImageNum = (p2_ImageNum-1) % p2_number_of_image;
		var new_image = get_ImageItemLocation(p2_imageArray[p2_ImageNum]);
		return(new_image);
	}
	else if (place=="imgphase3"){
		p3_ImageNum = (p3_ImageNum-1) % p3_number_of_image;
		var new_image = get_ImageItemLocation(p3_imageArray[p3_ImageNum]);
		return(new_image);
	}
	else
	{
	}
}

function prevImage(place) {
	var new_image = getPrevImage(place);
	document[place].src = new_image;
}

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