var currentIter = 0;
var lastIter = 0;
var maxIter = 0;
var showCaseElement = "";
var showCaseData = new Array();
var showCaseInit = 1;

function initshowCase(element, data) {
	showCaseElement = element;
	showCaseData = data;
	element.style.display="block";
	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.bottom="0px";
		currentImg.style.margin="0px";
		currentImg.src=data[i][0];
		
		element.appendChild(currentImg);
		currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 400});
		currentImg.currentOpacity.setOpacity(0);
	}
	
	var leftArrow = document.createElement('a');
	leftArrow.className = 'left';
	leftArrow.onclick = function () { pushPrevshowCase(); };
	element.appendChild(leftArrow);
	
	var rightArrow = document.createElement('a');
	rightArrow.className = 'right';
	rightArrow.onclick = function () { pushNextshowCase(); };
	element.appendChild(rightArrow);
	
	currentImg.currentOpacity = new fx.Opacity(currentImg, {duration: 400});
	currentImg.currentOpacity.setOpacity(0);
	
	doshowCase(1);
}

function destroyshowCase(element) {
	var myClassName = element.className;
	var newElement = document.createElement('div');
	newElement.className = myClassName;
	element.parentNode.replaceChild(newElement, element);
}

function pushNextshowCase () {
	setTimeout(nextshowCase,500);
}

function pushPrevshowCase () {
	setTimeout(prevshowCase,500);
}

function nextshowCase() {
	lastIter = currentIter;
	currentIter++;
	if (currentIter >= maxIter)
	{
		currentIter = 0;
		lastIter = maxIter - 1;
	}
	showCaseInit = 0;
	doshowCase(1);
}

function prevshowCase() {
	lastIter = currentIter;
	currentIter--;
	if (currentIter <= -1)
	{
		currentIter = maxIter - 1;
		lastIter = 0;
	}
	showCaseInit = 0;	
	doshowCase(2);
}

function doshowCase(position) {
	if (showCaseInit == 1)
	{
		setTimeout(nextshowCase,10);
	} else {
		if (position == 1)
		{
			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);
			}
		} else {
			if (currentIter != maxIter - 1) {
				$('slideElement' + parseInt(currentIter)).currentOpacity.setOpacity(1);
				$('slideElement' + parseInt(lastIter)).currentOpacity.custom(1, 0);
			} else {
				$('slideElement' + parseInt(currentIter)).currentOpacity.options.onComplete = function() {
					$('slideElement' + parseInt(lastIter)).currentOpacity.setOpacity(0);
				}
				$('slideElement' + parseInt(currentIter)).currentOpacity.custom(0, 1);	
			}
		}
	}	
}