var photos=new Array()
var which=0

photos[0]="parcvi1.jpg"
photos[1]="parcvi2.jpg"
photos[2]="parcvi3.jpg"
photos[3]="parcvi4.jpg"

function backward(){
if (which>0){
window.status=''
which--
document.images.photoslider.src=photos[which]
}
}

function forward(){
if (which<photos.length-1){
which++
document.images.photoslider.src=photos[which]
}
else window.status='End of gallery'
}