/** (C) www.dhtmlgoodies.com, November 2005 **/

var slideshow2_noFading = false;
var slideshow2_timeBetweenSlides = 3500;	// Amount of time between each image(1000 = 1 second)
var slideshow2_fadingSpeed = 25;	// Speed of fading	(Lower value = faster)

var slideshow2_galleryContainer;	// Reference to the gallery div
var slideshow2_galleryWidth;	// Width of gallery
var slideshow2_galleryHeight;	// Height of galery
var slideshow2_slideIndex = -1;	// Index of current image shown
var slideshow2_slideIndexNext = false;	// Index of next image shown
var slideshow2_imageDivs = new Array();	// Array of image divs(Created dynamically)
var slideshow2_currentOpacity = 100;	// Initial opacity
var slideshow2_imagesInGallery = false;	// Number of images in gallery
var Opera = navigator.userAgent.indexOf('Opera')>=0?true:false;

function createParentDivs(imageIndex)
{
	if(imageIndex==slideshow2_imagesInGallery){
		showGallery();
	}else{
		var imgObj = document.getElementById('galleryImage' + imageIndex);
		if(Opera)imgObj.style.position = 'static';
		slideshow2_imageDivs[slideshow2_imageDivs.length] =  imgObj;
		imgObj.style.visibility = 'hidden';
		imageIndex++;
		createParentDivs(imageIndex);
	}
}

function showGallery()
{
	if(slideshow2_slideIndex==-1)slideshow2_slideIndex=0; else slideshow2_slideIndex++;	// Index of next image to show
	if(slideshow2_slideIndex==slideshow2_imageDivs.length)slideshow2_slideIndex=0;
		slideshow2_slideIndexNext = slideshow2_slideIndex+1;	// Index of the next next image
	if(slideshow2_slideIndexNext==slideshow2_imageDivs.length)slideshow2_slideIndexNext = 0;
		slideshow2_currentOpacity=100;	// Reset current opacity

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

	setTimeout('revealImage()',slideshow2_timeBetweenSlides);
}

function revealImage()
{
	if(slideshow2_noFading){
		slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';
		if(Opera)slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'none';
			showGallery();
		return;
	}

	slideshow2_currentOpacity--;
	if(document.all){
		slideshow2_imageDivs[slideshow2_slideIndex].style.filter = 'alpha(opacity='+slideshow2_currentOpacity+')';
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.filter = 'alpha(opacity='+(100-slideshow2_currentOpacity)+')';
	}else{
		slideshow2_imageDivs[slideshow2_slideIndex].style.opacity = Math.max(0.01,slideshow2_currentOpacity/100);	// Can't use 1 and 0 because of screen flickering in FF
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = Math.min(0.99,(1 - (slideshow2_currentOpacity/100)));
	}

	if(slideshow2_currentOpacity>0){
		setTimeout('revealImage()',slideshow2_fadingSpeed);
	}else{
		slideshow2_imageDivs[slideshow2_slideIndex].style.visibility = 'hidden';
		if(Opera)slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'none';
			showGallery();
	}
}

function initImageGallery()
{
	slideshow2_galleryContainer = document.getElementById('gallerySmall_SlideshowContainer');
	slideshow2_galleryWidth = slideshow2_galleryContainer.clientWidth;
	slideshow2_galleryHeight = slideshow2_galleryContainer.clientHeight;
	galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
	for(var no=0;no<galleryImgArray.length;no++){
		galleryImgArray[no].id = 'galleryImage' + no;
	}
	slideshow2_imagesInGallery = galleryImgArray.length;
	createParentDivs(0);
}

function initImageGalleryMedium()
{
	slideshow2_galleryContainer = document.getElementById('galleryMedium_SlideshowContainer');
	slideshow2_galleryWidth = slideshow2_galleryContainer.clientWidth;
	slideshow2_galleryHeight = slideshow2_galleryContainer.clientHeight;
	galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
	for(var no=0;no<galleryImgArray.length;no++){
		galleryImgArray[no].id = 'galleryImage' + no;
	}
	slideshow2_imagesInGallery = galleryImgArray.length;
	createParentDivs(0);
}