function applyeffect(){
if (document.all){
photoslider.filters.revealTrans.Transition=Math.floor(Math.random()*25)
photoslider.filters.revealTrans.stop()
photoslider.filters.revealTrans.apply()
}
}

function playeffect(){
if (document.all)
photoslider.filters.revealTrans.play()
}

function keeptrack(){
window.status="Image "+(which+1)+" of "+photos.length
document.getElementById('pagenum').innerHTML = "page: "+(which+1);
}


function backward(){
if (which>0){
which--
applyeffect()
document.images.photoslider.src=photos[which]
playeffect()
keeptrack()
}
}

function forward(){
if (which<photos.length-1){
which++
applyeffect()
document.images.photoslider.src=photos[which]
playeffect()
keeptrack()
}
}

function lastslide(){
if (which<photos.length-1){
which = photos.length-1
applyeffect()
document.images.photoslider.src=photos[which]
playeffect()
window.status= "Image " +photos.length+" of "+photos.length
document.getElementById('pagenum').innerHTML = "page: " +photos.length;
}
}

function firstslide(){
which = 0
applyeffect()
document.images.photoslider.src=photos[which]
playeffect()
window.status="Image 1 of "+photos.length
document.getElementById('pagenum').innerHTML = "page: 1";
}