var Tabs = {
	setup: function(tab, content) {
		if (tab == null && content == null) {
			// If a "tabs" element exists, select the first tab

		} else {
			this.selectedTab = tab;
			this.selectedContent = content;
			this.select(tab, content);
		}
	}, 

	select: function(tab, content) {
		$(this.selectedTab).removeClassName("active");
		Element.hide(this.selectedContent);

		$(tab).addClassName("active");
		Element.show(content);

		this.selectedTab = tab;
		this.selectedContent = content;
	}
}

var Utilities = {
	toggleSlider: function (slider_id, show) {
		var slider = $(slider_id);
		if (!slider.visible() && show == true) {
			new Effect.Parallel([ new Effect.BlindDown(slider)]);
		} 
		if (slider.visible() && show == false)
		{
			new Effect.Parallel([ new Effect.BlindUp(slider)]);
		}
	}
}