YUI().use("anim", function(Y) {
	var lastLink = null;
	
	var openLink = function(event){
		var link = event.currentTarget;
		var pane = link.getAttribute("paneName");
		lastPane = lastLink.getAttribute("paneName");
		lastLink.removeClass("selected");
		lastLink = link;
		link.addClass("selected");
		Y.one('#'+lastPane).addClass("hide");
		Y.one('#'+pane).removeClass("hide");			
	}
	
	var init = function(){
		lastLink = Y.one('.section-buttons button');
		openLink({currentTarget:lastLink});
		Y.all('.section-buttons button').on('click', openLink);
	}
	Y.on("domready", init);
});