a.info{
    position:relative; /*this is the key*/
    z-index:24;
    color:#000000;
    text-decoration:underline}

a.info:hover{z-index:25; background-color:#D0E8F8}

a.info span{display: none}

a.info:hover span{
	display:block;
	position:absolute;
	top:2em;
	left:2em;
	width:20em;
	background-color:#F5F5F5;
	color:#000000;
	text-decoration:none;
	text-align: left;
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 11px;
	padding: 2px;
	border-top: 1px solid #000000;
	border-right: 2px solid #000000;
	border-bottom: 2px solid #000000;
	border-left: 1px solid #000000;
}