Senza il display: none.

codice:
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Esempio</title>
<script type="text/javascript">
	var bTopBtnOn = false, oTopBtn = document.createElement("div");
	oTopBtn.id = "nav_2";
	oTopBtn.innerHTML = "<img src=\"img\/handsoverhands.png\">

<a href=\"\/about\">about<\/a> - <a href=\"\/contact\">contact<\/a><\/p>";

	window.onscroll = function() {
		var nScrollTop = document.documentElement.scrollTop || document.body.scrollTop;
		bTopBtnOn = nScrollTop > 1300 ? 
			bTopBtnOn || (document.body.appendChild(oTopBtn), true)
			: bTopBtnOn && (document.body.removeChild(oTopBtn), false);
	};
</script>
<style type="text/css">
#nav_2 {
   position: fixed;
   width: 300px;
   top: 400px;
   left: 5%;
   text-align: center;
   font-size: 14px;
}
</style>
</head>

<body>

</body>

</html>