// begin dHTML SlideShow Script

// parametrize: number of slides, size?, # to show at once in tn, location of pics and tn,
var maxslides = 0;
var curslide = 0;
var iThumbs = 0;

function initPage()
{
	maxslides = document.getElementById("content").getElementsByTagName("A").length;
	iThumbs =  document.getElementById("thumbs").getElementsByTagName("A").length;
	curslide = 0 - iThumbs;

	document.getElementById("pictures").style.display = "inline"
	document.getElementById("intro").style.display = "none"
	nextSlides();
}


function showFullSize(n)
{

	var sFullImage = document.getElementById("content").getElementsByTagName("A")
	document.images['fullsize'].src= sFullImage[n+curslide].href


	var e = document.getElementById("caption")
	if (e) {
		var sDesc = document.getElementById("content").getElementsByTagName("div")
		e.innerHTML = sDesc[n+curslide]?sDesc[n+curslide].innerHTML:""
	}


}

function nextSlides()
{
	var iSplit = 0;
	var path = "";
	var name = "";

	var sThumbs = document.getElementById("content").getElementsByTagName("A")

	// make sure we display n slides at end of show
	if (curslide + (2*iThumbs) >= sThumbs.length) curslide = sThumbs.length - iThumbs; else curslide +=iThumbs;

	for (i=curslide;i<sThumbs.length && i<curslide+iThumbs; i++)
	{
		iSplit = sThumbs[i].href.lastIndexOf("/");
		path = sThumbs[i].href.slice(0,iSplit+1) + "tn/";
		name = sThumbs[i].href.slice(iSplit+1);
		name = name.split(".")[0] + "_tn" + "." + name.split(".")[1];
		path = path + name;
		document.images['tn'+ (i - curslide)].src= path;
	}
	showFullSize(0);
	if (i == sThumbs.length) document.getElementById("next").style.display = "none";
	if (curslide > 0)
		document.getElementById("prev").style.display = "inline";
	else
		document.getElementById("prev").style.display = "none";


}

// show previous slides
function prevSlides()
{
	var iSplit = 0;
	var path = "";
	var name = "";

	var sThumbs = document.getElementById("content").getElementsByTagName("A")

	// make sure we display n slides at beginning of show
	if (curslide - iThumbs < 0) curslide = 0; else curslide -=iThumbs;

	for (i=curslide; i<curslide + iThumbs; i++)
	{
		iSplit = sThumbs[i].href.lastIndexOf("/");
		path = sThumbs[i].href.slice(0,iSplit+1) + "tn/";
		name = sThumbs[i].href.slice(iSplit+1);
		name = name.split(".")[0] + "_tn" + "." + name.split(".")[1];
		path = path + name;
		document.images['tn'+ (i - curslide)].src= path;
	}

	showFullSize(0);
	if (iThumbs <= sThumbs.length) document.getElementById("next").style.display = "inline";
	if (curslide == 0) document.getElementById("prev").style.display = "none"

}

// end dHTML SlideShow Script