//SLIDESHOW

var slideshow;
var extension;
var prefix;
var path;
var index = 0;

function loadSlideshow(tot, ext, pre, pat) {
   //alert("loadSlideshow called");
   slideshow = new Array(tot);
   extension = ext;
   prefix = pre;
   path = pat;
   for (var i = 0; i<slideshow.length; i++) {
   	if (i < 10) {
		slideshow[i] = path + prefix + "00" + i + extension;
	} else if (i > 9 && i < 100) {
		slideshow[i] = path + prefix + "0" + i + extension;
	} else {
		slideshow[i] = path + prefix + i + extension;
	}
	 
   }
}

function getNextSlide() {
   incrementSlideIndex()
   document.getElementById("slide").src=slideshow[index];
}

function getPreviousSlide() {
   decrementSlideIndex()
   document.getElementById("slide").src=slideshow[index];
}

function incrementSlideIndex() {
   if (index<slideshow.length-1) {
      index++;
   } else {
      index = 0;
   } 
}

function decrementSlideIndex() {
   if (index>0) {
      index--;
   } else {
      index = slideshow.length-1;
   }
}

function getCurrentSlidePath() {
   //alert("current slide: "+slideshow[index]);
   return slideshow[index];
}