var hideProgress;

var total_banners = 0;
var current_banner = 1;

function hideProgressBox()
{
	Element.hide('progress_box');
}

function bannerTransition()
{
	var i = 1;
	while ( document.getElementById('banner_' + i) )
	{
		i++;
	}

	total_banners = (i - 1);
	banner_transition = setTimeout("nextBanner()", 11000);
}

function nextBanner()
{
	clearTimeout(banner_transition);
	banner_transition = '';

	last_banner = current_banner;
	current_banner++;

	if ( current_banner > total_banners )
	{
		current_banner = 1;
	}

	Effect.Appear('banner_' + current_banner);
	Effect.Fade('banner_' + last_banner), { duration: 0.5 };

	banner_transition = setTimeout("nextBanner()", 11000);
}