function importXML()
{
	if (document.implementation && document.implementation.createDocument)
	{
		xmlData = document.implementation.createDocument("", "", null);
		xmlData.onload = loadXML;
	}
	else if (window.ActiveXObject)
	{
		xmlData = new ActiveXObject("Microsoft.XMLDOM");
		xmlData.onreadystatechange = function () {
			if (xmlData.readyState == 4) loadXML()
		};
 	}
	else
	{
		alert('Your browser can\'t handle this script');
		return;
	}

	xmlData.load("slideshow.xml");
	switchImage('slideImg')
}

function imageItem(image_location, tooltip, url) {
	this.image_item = new Image();
	this.image_item.src = image_location;
	this.image_item.title = tooltip;
	this.link = url;
}

function loadXML() {
		var num = 0;
		var xmlNode = xmlData.firstChild;
		var total = xmlNode.getElementsByTagName("file").length;
		
		for (i=0; i<total; i++) {		
			imageArray[i] = new imageItem(imageDir + xmlNode.getElementsByTagName("file")[i].childNodes[0].nodeValue, xmlNode.getElementsByTagName("tooltip")[i].childNodes[0].nodeValue, xmlNode.getElementsByTagName("url")[i].childNodes[0].nodeValue);
		}
		totalImages = imageArray.length
		isReady=true;
}

function randNum(x, y) {
	var range = y - x + 1;
	return Math.floor(Math.random() * range) + x;
}


function getNextImage() {
	if (random_display) {
		imageNum = randNum(0, totalImages-1);
	}
	else {
		imageNum = (imageNum+1) % totalImages;
	}

	return(imageArray[imageNum]);
}


function switchImage(place) {
	if(isReady){
		var new_image = getNextImage();
		document[place].src = new_image.image_item.src;
		document[place].title = new_image.image_item.title;
		if(document.getElementById("gotolink") != null)
			document.getElementById("gotolink").href = new_image.link;
	}
	var recur_call = "switchImage('"+place+"')";
	timerID = setTimeout(recur_call, interval);
}

// JavaScript Document
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}