var slides;
var slide=0;
var playshow=false;
var timer;

function init(shownum)
{
	slides = $$('div.slide');
	if (slides.length)
	{
		showSlide(shownum);
	}
}

function jumpToSlide(num)
{
	showSlide(num);
	if (playshow)
	{
		toggleTimer(true);
	}
}

function showSlide(num)
{
	hideAll();
	
	slide = num;
	var temp = $('slide'+num);
	temp.style.display = 'block';
	temp = $('thumb'+num);
	temp.className = 'thumb-on';
}

function hideAll()
{
	for (var i=0; i<slides.length; i++)
	{
		var temp = $('slide'+i);
		if (temp != null)
		{
			temp.style.display = 'none';
		}
		temp = $('thumb'+i);
		if (temp != null)
		{
			temp.className = 'thumb-off';
		}
	}
}

function jumpToNext()
{
	slide++;
	if (slide > slides.length-1)
	{
		slide = 0;
	}
	
	showSlide(slide);
}

function jumpToPrev()
{
	slide--;
	if (slide < 0)
	{
		slide = slides.length-1;
	}
	
	showSlide(slide);
}

function exitShow()
{
	history.go(-1);
}