$.fn.Slideshow = function(options) {
	options = $.extend({
		navigation: null,   // Attaches 'showSlide(@href)' to each anchor in the provided object
		next:       null,   // Attaches 'nextSlide()' to this object
		previous:   null,   // Attaches 'prevSlide()' to this object
		selector:   'ul > li', // The selector for your slides
		speed:      500,    // Speed of the transition
		start:      null,   // Attaches 'startShow()' to this object
		stop:       null,   // Attaches 'stopShow()' to this object
		timeout:    5000,   // Length of time between slides
		zindex:     500     // zIndex for active slides. Slides shown next will be 'zindex - 1'
	}, options);

	var slides = $(options.selector, this);
	var slide	= 0;
	var timer;

	var nextSlide = function() {
		if (slide + 1 >= slides.length) {
			showSlide(0);
		} else {
			showSlide(slide + 1);
		}

		return false;
	};
	var prevSlide = function() {
		if (slide - 1 < 0) {
				showSlide(slides.length);
		} else {
				showSlide(slide - 1);
		}

		return false;
	};
	var showSlide = function(idx) {
		if (idx >= 0 && idx < slides.length && slide != idx) {
			var active = $(slides).filter(':visible');
			var toshow = $(slides[idx]);

			toshow.css('zIndex', options.zindex - 1).show();
			active.fadeOut(options.speed, function() {
				toshow.css('zIndex', options.zindex);
			});

			slide = idx;
			updateNav();
		}
	};
	var startShow = function() {
		if (!timer) {
			timer = setInterval(nextSlide, options.timeout);
			$(options.start).addClass('active');
			$(options.stop).removeClass('active');
		}

		return false;
	};
	var stopShow = function() {
		if (timer) {
			clearInterval(timer);
			timer = null;
			$(options.stop).addClass('active');
			$(options.start).removeClass('active');
		}

		return false;
	};
	var updateNav = function() {
		if (options.navigation) {
			$('a.active', $(options.navigation)).removeClass('active');
			$('a[href="#slide-' + slide + '"]', $(options.navigation)).addClass('active');
		}
	};

	if (options.start) {
		$(options.start).bind('click', startShow).hover(function() {
				if (!timer) $(this).addClass('active');
		}, function() {
				if (!timer) $(this).removeClass('active');
		});
	}
	if (options.stop) {
		$(options.stop).bind('click', stopShow).hover(function() {
				if (timer) $(this).addClass('active');
		}, function() {
				if (timer) $(this).removeClass('active');
		});
	}
	if (options.navigation) {
		$('a', $(options.navigation)).each(function() {
			$(this).bind('click', function() {
				var idx = parseInt($(this).attr('href').replace(/#slide-/, ''));
				var restart = false;

				// We need to stop then start the show to reset the timeout
				if (timer) {
					stopShow();
					restart = true;
				}
				showSlide(idx);
				if (restart) {
					startShow();
				}

				return false;
			});
		});
	}

	slides.not(':first-child').hide();
	slides.filter(':first-child').css('zIndex', options.zindex);
	updateNav();
	startShow();

	return this;
};