var opacitySpeed = 2;	// Speed of opacity - switching between large images - Lower = faster
	var opacitySteps = 10; 	// Also speed of opacity - Higher = faster
	var slideSpeed = 5;	// Speed of thumbnail slide - Lower = faster
	var slideSteps = 8;	// Also speed of thumbnail slide - Higher = faster
	
	/* Don't change anything below here */
	var largeImage = false;
	var imageToShow = false;
	var currentOpacity = 100;
	var slideWidth = false;
	var thumbTotalWidth = false;
	var viewableWidth = false;
	
	var currentUnqiueOpacityId = false;
	var currentActiveImage = false;
	var thumbDiv = false;
	var thumbSlideInProgress = false;
	
	var browserIsOpera = navigator.userAgent.indexOf('Opera')>=0?true:false;
	var leftArrowObj;
	var rightArrowObj;
	var thumbsColIndex = 1;
	var thumbsLeftPos = false;
	
	function initGalleryScript()
	{
		largeImage = document.getElementById('slideshow');
	}
	
	function showPreview(imagePath,inputObj)
	{		
		imageToShow = imagePath;
		var tmpImage = new Image();
		tmpImage.src = imagePath;
		currentUnqiueOpacityId = Math.random();
		moveOpacity(opacitySteps*-1,currentUnqiueOpacityId);
	}
	
	function setOpacity()
	{
		if(document.all)
		{
			largeImage.style.filter = 'alpha(opacity=' + currentOpacity + ')';
		}else{
			largeImage.style.opacity = currentOpacity/100;
		}
	}
	function moveOpacity(speed,uniqueId)
	{
		
		if(browserIsOpera){
			largeImage.src = imageToShow;
			return;
		}
		
		currentOpacity = currentOpacity + speed;
		if(currentOpacity<=5 && speed<0){

			setOpacity();
			largeImage.src = imageToShow;
			speed=opacitySteps;
		}
		if(currentOpacity>=99 && speed>0)currentOpacity=99;		
		setOpacity();	
		if(currentOpacity>=99 && speed>0)return;		
		if(uniqueId==currentUnqiueOpacityId)setTimeout('moveOpacity(' + speed + ',' + uniqueId + ')',opacitySpeed);		
	}