function showSlide(slide_id) {
		var activeNodes 	= $$('div.slideactive');
		var activeNode 		= activeNodes[0];
		var newNode 		= $('slide' + slide_id);
		var activeLinks		= $$('#slider-nav ul li.active');
		var activeLink 		= activeLinks[0];
		var newLinks		= $$('#slider-nav ul li.slide' + slide_id);
		var newLink 		= newLinks[0];

		if (activeNode != newNode) {
			activeNode.className = 'slidecontent';
			activeLink.className = activeNode.identify();
			newLink.className = 'active slide' + slide_id;

			var myEffect = new Effect.Fade(activeNode, {
				afterFinish: function(test) {
					newNode.className = 'slidecontent slideactive';
					newNode.appear();
				}
			});											
		}											
}