var slideShowSpeed = 4000

var xOp7=false,xOp5or6=false,xIE4Up=false,xNN4=false,xUA=navigator.userAgent.toLowerCase();
if(window.opera){
  xOp7=(xUA.indexOf('opera 7')!=-1 || xUA.indexOf('opera/7')!=-1);
  if (!xOp7) xOp5or6=(xUA.indexOf('opera 5')!=-1 || xUA.indexOf('opera/5')!=-1 || xUA.indexOf('opera 6')!=-1 || xUA.indexOf('opera/6')!=-1);
}
else if(document.layers) xNN4=true;
else {xIE4Up=document.all && xUA.indexOf('msie')!=-1 && parseInt(navigator.appVersion)>=4;}

var crossFadeDuration = 3
var Pic = new Array()
Pic[0] = 'presenta/pres1.jpg'
Pic[1] = 'presenta/pres2.jpg'
Pic[2] = 'presenta/pres3.jpg'
Pic[3] = 'presenta/pres4.jpg'
Pic[4] = 'presenta/pres5.jpg'
Pic[5] = 'presenta/pres6.jpg'
Pic[6] = 'presenta/pres7.jpg'
Pic[7] = 'presenta/pres8.jpg'
Pic[8] = 'presenta/pres9.jpg'
Pic[9] = 'presenta/pres10.jpg'
Pic[10] = 'presenta/pres11.jpg'
Pic[11] = 'presenta/pres12.jpg'

var t
var j = 1
var p = Pic.length
var pos = j

var preLoad = new Array()

function preLoadPic(index)
{
	if (Pic[index] != ''){
		window.status='Loading : '+Pic[index]
		preLoad[index] = new Image()
		preLoad[index].src = Pic[index]
		Pic[index] = ''
		window.status=''
	}
}

function runSlideShow(){
   if (xIE4Up){
    	document.images.SlideShow.style.filter="blendTrans(duration=3)"
		document.images.SlideShow.style.filter= "blendTrans(duration=crossFadeDuration)"
      document.images.SlideShow.filters.blendTrans.Apply()
	}
	document.images.SlideShow.src = preLoad[j].src
	if (xIE4Up){
	   document.images.SlideShow.filters.blendTrans.Play()
	}

	pos = j

	j = j + 1
	if (j > (p-1)) j=0
	t = setTimeout('runSlideShow()', slideShowSpeed)
	preLoadPic(j)
}

preLoadPic(j)