var speed = 3000

var Pic = new Array() 

Pic[0] = 'images/slideshow1.jpg'
Pic[1] = 'images/slideshow2.jpg'
Pic[2] = 'images/slideshow3.jpg'


var t
var j = 0
var p = Pic.length

var preLoad = new Array()
for (i = 0; i < p; i++){
   preLoad[i] = new Image()
   preLoad[i].src = Pic[i]
}

function runBGSlideShow(){
   document.all("slideshow").innerHTML = "<img src="+Pic[j]+">";
   j = j + 1
   if (j > (p-1)) j=0
   t = setTimeout('runBGSlideShow()', speed)
}