var timeDelay = 3; // change delay time in seconds

var Pix = new Array
("images/01.jpg","images/02.jpg","images/03.jpg","images/04.jpg","images/05.jpg","images/06.jpg","images/07.jpg","images/08.jpg","images/09.jpg","images/10.jpg","images/11.jpg","images/12.jpg","images/13.jpg","images/14.jpg","images/15.jpg","images/16.jpg","images/17.jpg","images/18.jpg","images/19.jpg","images/20.jpg","images/21.jpg","images/22.jpg","images/23.jpg","images/24.jpg","images/25.jpg","images/26.jpg","images/27.jpg","images/28.jpg","images/29.jpg","images/30.jpg");
var howMany = Pix.length;
var StartPic = randomnum(howMany);

timeDelay *= 1000;
var PicCurrentNum = StartPic;
var PicCurrent = new Image();
PicCurrent.src = Pix[StartPic];

function startPix() 
{
	document["ChangingPix"].src = PicCurrent.src;
	setInterval("slideshow()", timeDelay);
}

function slideshow() 
{
	PicCurrentNum = randomnum(howMany);
	PicCurrent.src = Pix[PicCurrentNum];
	document["ChangingPix"].src = PicCurrent.src;
}

function randomnum(max)
{
	random_num = (Math.round((Math.random()*(max-1))+1))
	return random_num
}