var fadeDuration=2000;
var slideDuration=5000;
var currentIndex=1;
var nextIndex=1;

$(document).ready(function()
{
	$('ul.slideshow li').css({opacity: 0.0});
	$("'ul.slideshow li:nth-child("+nextIndex+")'").addClass('show').animate({opacity: 1.0}, fadeDuration);
	var timer = setInterval('nextSlide()',slideDuration);
})
 
function nextSlide(){
	nextIndex =currentIndex+1;
	if(nextIndex> $('ul.slideshow li').length) {
		nextIndex =1;
	}
	$("'ul.slideshow li:nth-child("+nextIndex+")'").addClass('show').animate({opacity: 1.0}, fadeDuration);
	$("'ul.slideshow li:nth-child("+currentIndex+")'").animate({opacity: 0.0}, fadeDuration).removeClass('show');
	currentIndex = nextIndex;
}