var currentIter = 0;
var lastIter = 0;
var maxIter = 0;
var slideShowElement = "";
var slideShowData = new Array();
var slideShowInit = 1;
//var slideShowDelay = 2250;
var slideShowDelay = 4250;
var articleLink = "";

function choose (set) {
        return set[Math.floor(Math.random() * set.length)];
}

function initSlideShow(element, data) {
        if(!element) { return; }
	slideShowElement = element;
	slideShowData = data;
	element.style.display="block";
	
	articleLink = document.createElement('div');
	articleLink.className = 'global';
	element.appendChild(articleLink);
	articleLink.href = "";
	
	maxIter = data.length;
	for(i=0;i<data.length;i++)
	{
		var currentImg = document.createElement('img');
		currentImg.setAttribute('id','slideElement' + parseInt(i));
		currentImg.style.position="absolute";
		currentImg.style.left="0px";
		currentImg.style.top="0px";
		currentImg.style.margin="0px";
		currentImg.style.border="0px";
		//currentImg.src=data[i][0];
		if(data[i][0] == 'images/2basea.jpg')
		{
		   var set  = ['images/2basea.jpg',
		               'images/2baseb.jpg',
		               'images/2basec.jpg'
		              ];
		   currentImg.src = choose (set);
		}
		else if(data[i][0] == 'images/3basea.jpg')
		{
		   var set  = ['images/3basea.jpg',
		               'images/3baseb.jpg',
		               'images/3basec.jpg',
		               'images/3based.jpg',
		               'images/3basee.jpg',
		               'images/3basef.jpg',
		               'images/3baseg.jpg',
		               'images/3baseh.jpg'
		              ];
		   currentImg.src = choose (set);		
		}
		else if(data[i][0] == 'images/6basea.jpg')
		{
		   var set  = ['images/6basea.jpg',
		               'images/6baseb.jpg',
		               'images/6basec.jpg',
		               'images/6based.jpg',
		               'images/6basee.jpg',
		               'images/6basef.jpg',
		               'images/6baseg.jpg',
		               'images/6baseh.jpg'
		              ];
		   currentImg.src = choose (set);		
		}
		else { currentImg.src=data[i][0]; }
	
		articleLink.appendChild(currentImg);
		currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 1000});
		currentImg.currentOpacity.setOpacity(0);
	}
	
	currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 1000});
	currentImg.currentOpacity.setOpacity(0);
	
	var slideInfoZone = document.createElement('div');
	slideInfoZone.setAttribute('id','slideInfoZone');
	slideInfoZone.combo = new fx.Combo(slideInfoZone);
	slideInfoZone.combo.o.setOpacity(0);
	articleLink.appendChild(slideInfoZone);
	
	doSlideShow();
}

function nextSlideShow() {
	//soundManager.play('select');
	lastIter = currentIter;
	currentIter++;
	if (currentIter >= maxIter)
	{
		currentIter = 0;
		lastIter = maxIter - 1;
	}
	doSlideShow();
	slideShowInit = 0;
}

function doSlideShow() {
	//alert(currentIter);
	if (slideShowInit == 1)
	{
		setTimeout(nextSlideShow,10);
	} else { 
		if (currentIter != 0) {
			$('slideElement' + parseInt(currentIter)).currentOpacity.options.onComplete = function() {
				$('slideElement' + parseInt(lastIter)).currentOpacity.setOpacity(0);
			}
			$('slideElement' + parseInt(currentIter)).currentOpacity.custom(0, 1);
		} else {
			$('slideElement' + parseInt(currentIter)).currentOpacity.setOpacity(1);
			$('slideElement' + parseInt(lastIter)).currentOpacity.custom(1, 0);
		}
		setTimeout(showInfoSlideShow,1000);
		setTimeout(hideInfoSlideShow,slideShowDelay-1000);
		setTimeout(nextSlideShow,slideShowDelay);
	}	
}

function showInfoSlideShow() {
	articleLink.removeChild($('slideInfoZone'));
	var slideInfoZone = document.createElement('div');
	slideInfoZone.setAttribute('id','slideInfoZone');
	slideInfoZone.combo = new fx.Combo(slideInfoZone);
	slideInfoZone.combo.o.setOpacity(0);
	var slideInfoZoneTitle = document.createElement('h2');
	slideInfoZoneTitle.innerHTML = slideShowData[currentIter][2]
	slideInfoZone.appendChild(slideInfoZoneTitle);
	var slideInfoZoneDescription = document.createElement('p');
	slideInfoZoneDescription.innerHTML = slideShowData[currentIter][3]
	slideInfoZone.appendChild(slideInfoZoneDescription);
	articleLink.appendChild(slideInfoZone);
	
	articleLink.href = slideShowData[currentIter][1];
	
	slideInfoZone.combo.o.custom(0, 0.7);
	slideInfoZone.combo.h.custom(0, slideInfoZone.combo.h.el.offsetHeight);
}

function hideInfoSlideShow() {
	$('slideInfoZone').combo.o.custom(0.7, 0);
	//$('slideInfoZone').combo.h.custom(slideInfoZone.combo.h.el.offsetHeight, 0);
}