// JavaScript Document

		window.addEvent('domready', function(){
			var up = $('up'), down = $('down'), log;
			
			[up, down].each(function(arrow) {
				arrow.setStyle('opacity', .0);
			});
			
			document.addEvent('mousewheel', function(event) {
				event = new Event(event);
				
				/* Mousewheel UP */
				if (event.wheel > 0) {
					up.setStyle('opacity', 1);
					down.setStyle('opacity', .0);
					log = 'up';
				} 
				/* Mousewheel DOWN*/
				else if (event.wheel < 0) {
					up.setStyle('opacity', .0);
					down.setStyle('opacity', 1);
					log = 'down';
				}
				
				//$('log').setHTML(log);
				
				var cls = function() {
					[up, down].each(function(arrow) {
						arrow.setStyle('opacity', .0);
					});
				}.delay(3000);
			});
		});