var act = 0
var id
var objects
var slideshow

function startSlideshow(slideshow_id,speed)
{
	id = slideshow_id
	act = 0
	objects = document.getElementById(id).getElementsByTagName('li')
	$("ul#"+id+" li:nth-child(1)").fadeIn(800)
	slideNext()
	slideshow = setInterval("slideNext()",speed)
}

function slideNext()
{
	$("ul#"+id+" li:nth-child("+act+")").fadeOut(1000)
	if(act >= objects.length) act = 1
	else act += 1
	$("ul#"+id+" li:nth-child("+act+")").fadeIn(1000)
}

function stopSlideshow()
{
	$("ul#"+id+" li").hide()
	clearInterval(slideshow)
	id = null
	objects = null
}