function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}

//--- Added script
var slideIntervale = 12000;
var changeLayer = true;
var layerTimer;
function fadeInLayer(containerID, layerID) 
{ 
	//--- Set the z-index of object to be displayed
	var	container = document.getElementById(containerID);
	
	var index = 0;
	for (i = 0; container.childNodes[i]; i++)
	{
		child = container.childNodes[i];
		if(child.id == "layerNav")
			continue;
		if(child.tagName == "DIV" && child.id != layerID)
		{
			changeOpac(0, child.id);
			//child.style.zIndex = ++index;
			child.style.zIndex = 0;
			if(document.getElementById("menu_" + child.id) != null)
				document.getElementById("menu_" + child.id).className = "";
			if(document.getElementById("nav_" + child.id) != null)
				document.getElementById("nav_" + child.id).className = "";
		}
	}
	if(document.getElementById("menu_" + layerID) != null)
		document.getElementById("menu_" + layerID).className = "activeLink";
	
	if(document.getElementById("nav_" + layerID) != null)
		document.getElementById("nav_" + layerID).className = "activeNav";
	
	//document.getElementById(layerID).style.zIndex = ++index;
	document.getElementById(layerID).style.zIndex = 1;
	//---
	
	opacity(layerID, 0, 100, 1000);
} 

function fadeNext(containerID)
{
	var	container = document.getElementById(containerID);
	var index = 0;
	var childDiv = null;
	var firstChild = null;
	var lastChild = null;
	
	for (i = 0; container.childNodes[i]; i++)
	{
		tempChild = container.childNodes[i];
		if(tempChild.id == "layerNav")
			continue;
		if(tempChild.tagName == "DIV")
		{		
			childDiv = tempChild;
			if(firstChild == null)
				firstChild = childDiv;
			if(lastChild != null && lastChild.style.zIndex > tempChild.style.zIndex)
				break;
			lastChild = childDiv;
		}
	}
	
	if(lastChild.style.zIndex == childDiv.style.zIndex)
		childDiv = firstChild;
	fadeInLayer(containerID, childDiv.id);
	layerTimer = setTimeout("fadeNext('"+ containerID +"');", slideIntervale);
}

function navLayer(containerID, layerID) 
{
	clearTimeout(layerTimer);
	fadeInLayer(containerID, layerID);
	if(changeLayer)
		layerTimer = setTimeout("fadeNext('"+ containerID +"');", slideIntervale);
}

function startLayerFade(containerID)
{
	changeLayer = true;
	layerTimer = setTimeout("fadeNext('"+ containerID +"');", slideIntervale);
	document.getElementById("nav_playPause").onclick = function(){ stopLayerFade(containerID); };
	document.getElementById("nav_playPause").className= "layerNavPause";
}

function stopLayerFade(containerID)
{
	changeLayer = false;
	clearTimeout(layerTimer);
	document.getElementById("nav_playPause").onclick = function() { startLayerFade(containerID);};
	document.getElementById("nav_playPause").className= "layerNavPlay";
}

//--- Added script end