var Navigation = {
	init: function()
	{
		Event.observe('about', 'click', function(e) { Event.stop(e); this.blur(); Navigation.switchTo('about'); });
		Event.observe('activities', 'click', function(e) { Event.stop(e); this.blur(); Navigation.switchTo('activities'); });
		Event.observe('directory', 'click', function(e) { Event.stop(e); this.blur(); Navigation.switchTo('business'); });
		Event.observe('plan', 'click', function(e) { Event.stop(e); this.blur(); Navigation.switchTo('strategic_plan'); });
	},
	
	switchTo: function(type)
	{
		var els = $$('#submenu li');
		for (var i = 0; i < els.length; i++)
			els[i].hide();
		
		var els = $$('#submenu li.' + type);
		for (var i = 0; i < els.length; i++)
			els[i].show();
	}
}