/* 
	Get unique random number array
	Created by: Barry Pranklin, adapted from http://javascript.internet.com
*/

var Found = false;
var Count = 0;

function GetUnique(max, num) {
	for (i = 0; Count < num; Count++) {
		Found = false;
		var rndValue = get_random(max);
		var j = 0;
		for (j = 0; j < control.length; j++) {
			if (control[j] == rndValue) {
				Found = true;
				break;
			}
		}
		if (Found) {
			Count--;
		} else {
			control[Count] = rndValue;
		}
	}
}
function get_random(max) {
	var ranNum = Math.round(Math.random() * max);
	return ranNum;
}









// animation controls
var animSpeed = 2000;
var numImages = 9;

// image controls
var parent = "div.image-rotation ul";
var imgCount;
var imgSrc = new Array();
var imgAlt = new Array();
var imgHref = new Array();
var control = new Array(numImages);
	
$(document).ready(function() {

	// clear all child li elements
	function clearAll() {
		$(parent).children("li").each(function(index) {
			$(this).remove();
		});
	}


	// add an image to specified location in the DOM
	function imgAdd(me) {
		// generate the markup
		var img = "<li>" + '<a href="' + imgHref[me] + '">';
		img += '<img src="' + imgSrc[me] + '" alt="' + imgAlt[me] + '">';
		img += "</a></li>";
		$(img).appendTo(parent);
	}



	// toss all images into respective arrays
	$(parent).children("li").each(function(index) {
		imgCount++;
		imgSrc[index] = $(this).children().children("img").attr("src");
		imgAlt[index] = $(this).children().children("img").attr("alt");
		imgHref[index] = $(this).children("a").attr("href");
	});
	
	// then clear them
	clearAll();

	// build an array of random indexes the desired number of images
	GetUnique((imgSrc.length - 1), numImages);

	// re-add our random selection of images to the page
	for (i = 0; i < control.length; i++) {
		imgAdd(control[i]);
/* 		console.log(i + " " + control[i] + "  "); */
	};

});