window.addEvent('domready', function() {
	var homeSlide = new Fx.Slide('home', {duration: 600})
	var btns = [$('design_btn'), $('specifications_btn'), $('evaluation_btn'), $('audit_btn'), $('analytics_btn')]; //The buttons to trigger the slides;
	var slides = [$('design'), $('specifications'), $('evaluation'), $('audit'), $('analytics')]; //The elements to be slides;
	var mySlide = [];
	var openSlide = -1; //Create a flag variable to be checked and test if any slide is opened;

	slides.each(function(slide, idx) { //For each element in slides do...
		mySlide[idx] = new Fx.Slide(slide, {duration: 600}).hide(); //Create an array with the Fx.Slide for each element in slides and hides it;
		btns[idx].addEvent('click', function(e) { //Add a click event for each element in btns;
			e = new Event(e);
			if ( openSlide == -1 ) { //Check if a slide has been opened before;
				openSlide = idx;
				homeSlide.hide();
				mySlide[idx].show(); //Slide In the slide;
			} else {
				mySlide[openSlide].hide(); //Slide Out the previous openened slide;
				mySlide[idx].show(); //Slide In the slide;
				openSlide = idx; //openSlide will now be the current open slide;
			}
			e.stop();
		});
	});
});