var photo=new Array()
var which=0

photo[0]="exlibris/0.png"
photo[1]="exlibris/bt_uliczka.png"
photo[2]="exlibris/bt_ksiezyc.png"
photo[3]="exlibris/bt_grafik.png"

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

function forward(){
if (which<photo.length-1){
which++
document.images.photoslider.src=photo[which]
}
else menuEx1()
}