// JavaScript Document -- ramdom image

var delay=1000000 //set delay in miliseconds
var curindex=0

var randomimages=new Array()

	randomimages[0]="images/header_images/header_pics1.jpg"
	randomimages[1]="images/header_images/header_pics2.jpg"
	randomimages[2]="images/header_images/header_pics3.jpg"
	randomimages[3]="images/header_images/header_pics4.jpg"
	randomimages[4]="images/header_images/header_pics5.jpg"
	randomimages[5]="images/header_images/header_pics6.jpg"
	randomimages[6]="images/header_images/header_pics7.jpg"
	randomimages[7]="images/header_images/header_pics8.jpg"
	randomimages[8]="images/header_images/header_pics9.jpg"
	randomimages[9]="images/header_images/header_pics10.jpg"
	randomimages[10]="images/header_images/header_pics11.jpg"
	randomimages[11]="images/header_images/header_pics12.jpg"
	randomimages[12]="images/header_images/header_pics13.jpg"
	randomimages[13]="images/header_images/header_pics14.jpg"
	randomimages[14]="images/header_images/header_pics15.jpg"
	randomimages[15]="images/header_images/header_pics16.jpg"
	randomimages[16]="images/header_images/header_pics17.jpg"
	randomimages[17]="images/header_images/header_pics18.jpg"


var preload=new Array()

for (n=0;n<randomimages.length;n++)
{
	preload[n]=new Image()
	preload[n].src=randomimages[n]
}

document.write('<img name="defaultimage" src="'+randomimages[Math.floor(Math.random()*(randomimages.length))]+'">')

function rotateimage()
{

if (curindex==(tempindex=Math.floor(Math.random()*(randomimages.length)))){
curindex=curindex==0? 1 : curindex-1
}
else
curindex=tempindex

	document.images.defaultimage.src=randomimages[curindex]
}

setInterval("rotateimage()",delay)