var screenshots = ["first.jpg", "second.jpg", "third.jpg", "fourth.jpg", "fifth.jpg", "sixth.jpg"];
var currentScreenshot = 0;
var lastItem;
var currentItem;

$(document).ready(function() {
	lastItem = $("#screenshot1");
	$("#screenshot2").hide();
});

function forward()
{
	// document.getElemenyById("screenshot").src = "Testing";
	if (screenshots.length - 1 > currentScreenshot)
	{
		currentScreenshot++;

		changeScreenshot("Forward");
	}
}

function backward()
{
	// document.getElemenyById("screenshot").src = "Testing";
	if (0 < currentScreenshot)
	{
		currentScreenshot--;

		changeScreenshot("Backward");
	}
}

function changeScreenshot(direction)
{
	if (lastItem.attr("id") == "screenshot1")
	{
		currentItem = $("#screenshot2");
	}
	
	if (lastItem.attr("id") == "screenshot2")
	{
		currentItem = $("#screenshot1");
	}

		currentItem.attr("src", "../images/screenshots/" + screenshots[currentScreenshot]);
		currentItem.hide();
		currentItem.fadeIn("slow");

	if (direction == "Forward")
	{
		lastItem.attr("src", "../images/screenshots/" + screenshots[currentScreenshot - 1]);
	}
	else
	{
		lastItem.attr("src", "../images/screenshots/" + screenshots[currentScreenshot + 1]);
	}
}