var current = 0;

	function nextScreen()
	{
		if (current < (screenshots.length-1))
		{
			current++;
		}
		else
		{
			current = 0;
		}
		document.getElementById('screenshot').src = screenshots[current];
	}

	function previousScreen()
	{
		if (current > 0)
		{
			current--;
		}
		else
		{
			current = (screenshots.length-1);
		}
		document.getElementById('screenshot').src = screenshots[current];
	}

	function preLoad()
	{
		if (screenshots.length > 0)
		{
			document.getElementById('screenshot').src = screenshots[current];
		}


		for (var i = 1; i < screenshots.length; i++)
		{
			document.getElementById('preload').src = screenshots[i];
		}
	}