$(document).ready(function(){

	/* set variables locally for increased performance */

	var scroll_timer;
	var displayed = false;
	var $toplink = $('#toplink');
	var $window = $(window);
	var top = $(document.body).children(0).position().top;

	/* react to scroll event on window */

	$window.scroll(function () {
		window.clearTimeout(scroll_timer);
		scroll_timer = window.setTimeout(function () { // use a timer for performance
			if($window.scrollTop() <= top) // do nothing if at top of the page
			{
				displayed = false;
				//$message.fadeOut(500);
			}
			else if(displayed == false) // show if scrolling down
			{
				displayed = true;
				$toplink.css('display','block');
				//$message.stop(true, true).show().click(function () { $message.fadeOut(500); });
			}
		}, 100);
	});

});