var currentslide = 0;

function prevSlide(fol, maxslides, cur) {	
	if (currentslide == 0) currentslide = cur;
	currentslide = (currentslide + maxslides - 2) % maxslides + 1;	
	document.all.slide.style.backgroundImage = "url(photos/"+fol+"/"+currentslide+".jpg)";
}

function nextSlide(fol, maxslides, cur) {	
	if (currentslide == 0) currentslide = cur;
	currentslide = currentslide % maxslides + 1;
	document.all.slide.style.backgroundImage = "url(photos/"+fol+"/"+currentslide+".jpg)";
}

function cls() { window.close(); }