// You can modify these three values
var slideshow2_noFading = false;	// Just normal show/hide without fading ?
var slideshow2_timeBetweenSlides = 5000;	// Amount of time between each image(1000 = 1 second)
var slideshow2_fadingSpeed = 15;	// Speed of fading


/* Don't change any of these values */
var slideshow2_galleryHeigh;	// Height of galery	
var slideshow2_galleryContainer;	// Reference to the gallery div
var slideshow2_galleryWidth;	// Width of gallery	
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

//	chris
var galleryTextArray	= new Array();
var galleryURLArray		= new Array();

function getGalleryImageSize(imageIndex)
{
	if(imageIndex==slideshow2_imagesInGallery){
		showGallery();
	}else{
		var imgObj = document.getElementById('galleryImage' + imageIndex);
		
		
		
		//alert(galleryURLArray[imageIndex]);
		var imgWidth = imgObj.width;
		var imgHeight = imgObj.height;
		if(imgWidth>50) {
			
			var tmpDiv = document.createElement('DIV');
			tmpDiv.id = 'galleryDiv' + imageIndex;
			tmpDiv.style.display = 'none';
			tmpDiv.style.zIndex  = '0';
			tmpDiv.className='imageInGallery';
			slideshow2_galleryContainer.appendChild(tmpDiv);
			
			
			var link = document.createElement('a');
			link.setAttribute('href', galleryURLArray[imageIndex]);
			
			tmpDiv.appendChild(link);
			link.appendChild(imgObj);
			//tmpDiv.appendChild(imgObj);
			
			//	 chris - add desc overlay
			var imgDesc=document.createElement('DIV');
			imgDesc.className='imageInGallery_DESC';
			imgDesc.innerHTML=galleryTextArray[imageIndex];
			tmpDiv.appendChild(imgDesc);
			
			imgObj.style.left = Math.round((slideshow2_galleryWidth - imgWidth)/2)  + "px";
			imgObj.style.top = Math.round((slideshow2_galleryHeight - imgHeight)/2)  + "px";
			tmpDiv.style.display = 'none';
			tmpDiv.style.zIndex  = '0';
			slideshow2_imageDivs.push(tmpDiv);
			imageIndex++;
			getGalleryImageSize(imageIndex);
		}else{
			setTimeout('getGalleryImageSize(' + imageIndex + ')',10);
		}
	}
}

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.display = 'block';
	slideshow2_imageDivs[slideshow2_slideIndex].style.zIndex  = '101';
	if(navigator.userAgent.indexOf('Opera')<0){
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.display = 'block';
		slideshow2_imageDivs[slideshow2_slideIndex].style.zIndex  = '101';
	}
	
	
	if(document.all){
		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;
		slideshow2_imageDivs[slideshow2_slideIndexNext].style.opacity = 0.01;
	}
	

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

function revealImage()
{
	if(slideshow2_noFading){
		slideshow2_imageDivs[slideshow2_slideIndex].style.display = 'none';
		slideshow2_imageDivs[slideshow2_slideIndex].style.zIndex  = '0';
		showGallery();
		return;
	}
	//slideshow2_currentOpacity--;
	slideshow2_currentOpacity=slideshow2_currentOpacity-10;
	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.display = 'none';		
		slideshow2_imageDivs[slideshow2_slideIndex].style.zIndex  = '0';		
		showGallery();
	}
}

function initImageGallery()
{
	slideshow2_galleryContainer = document.getElementById('imageSlideshowHolder');
	slideshow2_galleryWidth = slideshow2_galleryContainer.clientWidth;
	slideshow2_galleryHeight = slideshow2_galleryContainer.clientHeight;
	galleryImgArray = slideshow2_galleryContainer.getElementsByTagName('IMG');
	galleryRawrArray = slideshow2_galleryContainer.getElementsByTagName('A');
	
	captions=document.getElementById('the_captions');
	galleryDescArray = captions.getElementsByTagName('DIV');
	
	
	
	for(var no=0;no<galleryImgArray.length;no++){
		galleryImgArray[no].id = 'galleryImage' + no;
		//	chris - get caption
		galleryTextArray[no]=galleryDescArray[no].innerHTML;
		
		galleryURLArray[no] = galleryRawrArray[no];
	}
	slideshow2_imagesInGallery = galleryImgArray.length;
	getGalleryImageSize(0);		
	
}