/*
|--------------------------------------------------------------------------
| UItoTop jQuery Plugin 1.2
| http://www.mattvarone.com/web-design/uitotop-jquery-plugin/
|--------------------------------------------------------------------------
*/
#toTop {
	display:none;
	text-decoration:none;
	position:fixed;
	bottom:10px;
	right:10px;
	overflow:hidden;
	width:51px;
	height:51px;
	border:none;
	text-indent:100%;
	background:url(./ui.totop.css/$FILE/ui.totop.png) no-repeat left top;
}
#toTopHover {
	background:url(./ui.totop.css/$FILE/ui.totop.png) no-repeat left -51px;
	width:51px;
	height:51px;
	display:block;
	overflow:hidden;
	float:left;
	opacity: 0;
	-moz-opacity: 0;
	filter:alpha(opacity=0);
}
#toTop:active, #toTop:focus {
	outline:none;
}
<a style="display: inline-block; text-align: center" href="/retecivica/urp/pes.nsf/1bd3af0d9bd78f35c1256e2a004dcc1f/6e38404677770673c1257d3c004183d6/$FILE/ui.totop.png" title="ui.totop.png"></a>