// Milisegundos que dura el SlideShow
var slideShowSpeed = 5000

// Segundos que transcurren entre cada imagen
var crossFadeDuration = 3

// Indicamos las imágenes que realizarán el SlideShow
var Pic = new Array() 

Pic[0] = 'images/img1.jpg'
Pic[1] = 'images/img2.jpg'
Pic[2] = 'images/img3.jpg'
Pic[3] = 'images/img4.jpg'
Pic[4] = 'images/img0.jpg'

var t
var j = 0
var p = Pic.length
var cont = true;
var cambioManualActivo = false;

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

function runSlideShow(){
    if(cont){
       if (document.all){
          document.images.SlideShow.style.filter="blendTrans(duration=2)"
          document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)"
          document.images.SlideShow.filters.blendTrans.Apply()      
       }
       document.images.SlideShow.src = preLoad[j].src
       if (document.all){
          document.images.SlideShow.filters.blendTrans.Play()
       }
       j = j + 1
       if (j > (p-1)){
        j=0;
        cont = false;
       }
       t = setTimeout('runSlideShow()', slideShowSpeed)
   } else {
       if(!cambioManualActivo){
            cambioManual(0);
       }
   }
}

function cambioManual(num){
    cont = false;
    cambioManualActivo = true;
    if (document.all){
      document.images.SlideShow.style.filter="blendTrans(duration=2)"
      document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)"
      document.images.SlideShow.filters.blendTrans.Apply()      
   }
   document.images.SlideShow.src = preLoad[num].src
   if (document.all){
      document.images.SlideShow.filters.blendTrans.Play()
   }
}