var slideshow2_noFading = false;
var slideshow2_timeBetweenSlides =2000;	// Amount of time between each image(1000 = 1 second)
var slideshow2_fadingSpeed = 30;	// Speed of fading	(Lower value = faster)


var slideshow2_stats = new Array();

var slideshow2_slideIndex = new Array();	// Index of current image shown
var slideshow2_slideIndexNext = new Array();	// Index of next image shown
var slideshow2_imageDivs = new Array();	// Array of image divs(Created dynamically)
var slideshow2_currentOpacity = new Array();	// Initial opacity
var slideshow2_imagesInGallery = new Array();	// Number of images in gallery
var Opera = navigator.userAgent.indexOf('Opera')>=0?true:false;
function createParentDivs(imageIndex,divId)
{
	if(imageIndex==slideshow2_imagesInGallery[divId]){	
		showGallery(divId);
	}else{
		var imgObj = document.getElementById(divId + '_' + imageIndex);	
		if(Opera)imgObj.style.position = 'static';
		if(!slideshow2_imageDivs[divId])slideshow2_imageDivs[divId] = new Array();
		slideshow2_imageDivs[divId][slideshow2_imageDivs[divId].length] =  imgObj;

		imgObj.style.visibility = 'hidden';	
		imageIndex++;
		createParentDivs(imageIndex,divId);	
	}		
}

function showGallery(divId)
{
	if(slideshow2_slideIndex[divId]==-1)slideshow2_slideIndex[divId]=0; else slideshow2_slideIndex[divId]++;	// Index of next image to show
	if(slideshow2_slideIndex[divId]==slideshow2_imageDivs[divId].length)slideshow2_slideIndex[divId]=0;
	slideshow2_slideIndexNext[divId] = slideshow2_slideIndex[divId]+1;	// Index of the next next image
	if(slideshow2_slideIndexNext[divId]==slideshow2_imageDivs[divId].length)slideshow2_slideIndexNext[divId] = 0;

	
	slideshow2_currentOpacity[divId]=100;	// Reset current opacity

	// Displaying image divs
	slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.visibility = 'visible';
	if(Opera)slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.display = 'inline';
	if(navigator.userAgent.indexOf('Opera')<0){
		slideshow2_imageDivs[divId][slideshow2_slideIndexNext[divId]].style.visibility = 'visible';
	}
	
	if(document.all){	// IE rules
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.filter = 'alpha(opacity=100)';
		slideshow2_imageDivs[divId][slideshow2_slideIndexNext[divId]].style.filter = 'alpha(opacity=1)';
	}else{
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.opacity = 0.99;	// Can't use 1 and 0 because of screen flickering in FF
		slideshow2_imageDivs[divId][slideshow2_slideIndexNext[divId]].style.opacity = 0.01;
	}		
	

	setTimeout('revealImage("' + divId + '")',slideshow2_timeBetweenSlides);		
}

function revealImage(divId)
{

	if(slideshow2_noFading){
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.visibility = 'hidden';
		if(Opera)slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.display = 'none';
		showGallery(divId);
		return;
	}
	slideshow2_currentOpacity[divId]--;
	if(document.all){
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.filter = 'alpha(opacity='+slideshow2_currentOpacity[divId]+')';
		slideshow2_imageDivs[divId][slideshow2_slideIndexNext[divId]].style.filter = 'alpha(opacity='+(100-slideshow2_currentOpacity[divId])+')';
	}else{
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.opacity = Math.max(0.01,slideshow2_currentOpacity[divId]/100);	// Can't use 1 and 0 because of screen flickering in FF
		slideshow2_imageDivs[divId][slideshow2_slideIndexNext[divId]].style.opacity = Math.min(0.99,(1 - (slideshow2_currentOpacity[divId]/100)));
	}
	if(slideshow2_currentOpacity[divId]>0){
		setTimeout('revealImage("' + divId + '")',slideshow2_fadingSpeed);
	}else{
		slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.visibility = 'hidden';	
		if(Opera)slideshow2_imageDivs[divId][slideshow2_slideIndex[divId]].style.display = 'none';		
		showGallery(divId);
	}
}

function initImageGallery(divId)
{
	var slideshow2_galleryContainer = document.getElementById(divId);
	
	
	slideshow2_slideIndex[divId] = -1;
	slideshow2_slideIndexNext[divId] = false;
	
	var galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
	for(var no=0;no<galleryImgArray.length;no++){
		galleryImgArray[no].id = divId + '_' + no;
	}
	
	slideshow2_imagesInGallery[divId] = galleryImgArray.length;
	createParentDivs(0,divId);		
	
}//image slide show


	var displayWaitMessage=true;	// Display a please wait message while images are loading?
  	
   		
	var activeImage = false;
	var imageGalleryLeftPos = false;
	var imageGalleryWidth = false;
	var imageGalleryObj = false;
	var maxGalleryXPos = false;
	var slideSpeed = 0;
	var imageGalleryCaptions = new Array();
	function startSlide(e)
	{
		if(document.all)e = event;
		var id = this.id;
		this.getElementsByTagName('IMG')[0].src = 'images/' + this.id + '_over.gif';	
		if(this.id=='arrow_right'){
			slideSpeedMultiply = Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed = -1*slideSpeedMultiply;
			slideSpeed = Math.max(-10,slideSpeed);
		}else{			
			slideSpeedMultiply = 10 - Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed = 1*slideSpeedMultiply;
			slideSpeed = Math.min(10,slideSpeed);
			if(slideSpeed<0)slideSpeed=10;
		}
	}
	
	function releaseSlide()
	{
		var id = this.id;
		this.getElementsByTagName('IMG')[0].src = 'images/' + this.id + '.gif';
		slideSpeed=0;
	}
		
	function gallerySlide()
	{
		if(slideSpeed!=0){
			var leftPos = imageGalleryObj.offsetLeft;
			leftPos = leftPos/1 + slideSpeed;
			if(leftPos>maxGalleryXPos){
				leftPos = maxGalleryXPos;
				slideSpeed = 0;
				
			}
			if(leftPos<minGalleryXPos){
				leftPos = minGalleryXPos;
				slideSpeed=0;
			}
			
			imageGalleryObj.style.left = leftPos + 'px';
		}
		setTimeout('gallerySlide()',20);
		
	}
	
	function showImage()
	{
		if(activeImage){
			activeImage.style.filter = 'alpha(opacity=50)';	
			activeImage.style.opacity = 0.5;
		}	
		this.style.filter = 'alpha(opacity=100)';
		this.style.opacity = 1;	
		activeImage = this;	
	}
	
	function initSlideShow()
	{
		document.getElementById('arrow_left').onmousemove = startSlide;
		document.getElementById('arrow_left').onmouseout = releaseSlide;
		document.getElementById('arrow_right').onmousemove = startSlide;
		document.getElementById('arrow_right').onmouseout = releaseSlide;
		
		imageGalleryObj = document.getElementById('theImages');
		imageGalleryLeftPos = imageGalleryObj.offsetLeft;
		imageGalleryWidth = document.getElementById('galleryContainer').offsetWidth - 80;
		maxGalleryXPos = imageGalleryObj.offsetLeft; 
		minGalleryXPos = imageGalleryWidth - document.getElementById('slideEnd').offsetLeft;
		var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
		for(var no=0;no<slideshowImages.length;no++){
			slideshowImages[no].onmouseover = showImage;
		}
		
		var divs = imageGalleryObj.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			if(divs[no].className=='imageCaption')imageGalleryCaptions[imageGalleryCaptions.length] = divs[no].innerHTML;
		}
		gallerySlide();
	}
	
	function showPreview(imagePath,imageIndex){
		var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			document.getElementById('previewPane').appendChild(img);
		}else img = subImages[0];
		
		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}
		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };
		img.src = imagePath;
		
	}
	function hideWaitMessageAndShowCaption(imageIndex)
	{
		document.getElementById('waitMessage').style.display='none';	
		document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];
		document.getElementById('largeImageCaption').style.display='block';
		
	}
	window.onload = initSlideShow;