var Site = {
	
			start: function(){
				if($('vertical')) Site.vertical();

			},
			
			vertical: function(){
				var list = $$('#vertical li div.collapse');
				var headings = $$('#vertical li h3');
				var collapsibles = new Array();
				
				headings.each( function(heading, i) {
 
					var collapsible = new Fx.Slide(list[i], { 
						duration: 500, 
						transition: Fx.Transitions.linear,

					});
					
					collapsibles[i] = collapsible;
					
					heading.onclick = function(){
						var span = $E('span', heading);
 
						if(span){
							var newHTML = span.innerHTML == '+' ? '-' : '-';
							span.setHTML(newHTML);
						}
						
						collapsible.toggle();
						return false;
					}
					
					collapsible.hide();
					
				});
				
			}
		};
		window.addEvent('domready', Site.start);