$(document).ready(function(){
 //back to top scroll function. Any link with a hash (#) will scroll to that id on the page
  $('a[href*=#]').click(function() {
 if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
 && location.hostname == this.hostname) {
   var $target = $(this.hash);
   $target = $target.length && $target
   || $('[name=' + this.hash.slice(1) +']');
   if ($target.length) {
  var targetOffset = $target.offset().top;
  $('html,body')
  .animate({scrollTop: targetOffset}, 800);
    return false;
   }
 }
  });
});
 
 $(function () {
	var scroll_timer;
	var displayed = false;
	var $message = $('#messaggio a');
	var $window = $(window);
	var top = $(document.body).children(0).position().top;
	$window.scroll(function () {
		window.clearTimeout(scroll_timer);
		scroll_timer = window.setTimeout(function () {
			if($window.scrollTop() <= top)
			{
				displayed = false;
				$message.fadeOut(500);
			}
			else if(displayed == false)
			{
				displayed = true;
				$message.stop(true, true).show().click(function () { $message.fadeOut(500); });
			}
		}, 100);
	});
});