var slideDuration = 10000;

$(document).ready(function()
{
	$('#home-banner #links a').click(function()
	{
		switchBanner($(this).data('banner'));
		return false;
	});

	$('#home-banner img').each(function()
	{
		var height = $(this).height();
		scrollImageDown(this, height);
	});
});



function switchBanner(banner)
{
	$('#home-banner').removeAttr('class').addClass(banner);
}

function scrollImageDown(img, height)
{
	if (height > 285) {
		$(img).animate(
				{
					top: (height - 285) * -1
				}, {
					duration:slideDuration,
					easing:'linear',
					complete:function()
					{
						scrollImageUp(img, height);
					}
				}
		);
	}
}

function scrollImageUp(img, height)
{
	$(img).animate(
			{
				top: 0
			}, {
				duration:slideDuration,
				easing:'linear',
				complete:function()
				{
					scrollImageDown(img, height);
				}
			}
	);
}