/*window.addEvent('domready',function() {
	(function() {
		var topbar = $('topbar').set('tween',{ duration: 200 }), topDistance = 30, fadeTo = 0.5;
		var topbarME = function() { topbar.tween('opacity',1); }, topbarML = function() { topbar.tween('opacity',fadeTo); };
		var events = {
			mouseenter: topbarME,
			mouseleave: topbarML
		};
		var ss = new ScrollSpy({
			min: topDistance,
			max: window.getScrollSize().y + 1000,
			onLeave: function() {
				topbarME();
				topbar.removeEvents(events);
			},
			onEnter: function() {
				topbarML();
				topbar.addEvents(events);
			}
		});
	})();
});
*/

$(document).ready(function() {
	(function() {
		//settings
		var fadeSpeed = 200, fadeTo = 0.5, topDistance = 30;
		var topbarME = function() { $('#topbar').fadeTo(fadeSpeed,1); }, topbarML = function() { $('#topbar').fadeTo(fadeSpeed,fadeTo); };
		var inside = false;
		//do
		$(window).scroll(function() {
			position = $(window).scrollTop();
			if(position > topDistance && !inside) {
				//add events
				topbarML();
				$('#topbar').bind('mouseenter',topbarME);
				$('#topbar').bind('mouseleave',topbarML);
				inside = true;
			}
			else if (position < topDistance){
				topbarME();
				$('#topbar').unbind('mouseenter',topbarME);
				$('#topbar').unbind('mouseleave',topbarML);
				inside = false;
			}
		});
	})();
});