a.info{
    position:relative; /*this is the key*/
    z-index:24; 
    color:#000;
    text-decoration:none}
 
a.info:hover{z-index:25; background-color:#ffffff}

a.info span{display: none}

a.info:hover span{ /*the span will display just on :hover state*/
    display:block; padding:4px;
    position:absolute; 
    text-decoration:none;
    top:1em; right:4em; width:15em;
    border:1px solid #ccc;
    background-color:#ffffff; color:#000;
    text-align: left}
    
    
	
	.textbox { font-family:verdana, arial, sans-serif; color:#000000; font-size: 11px; border-color:silver; border-collapse:collapse; border-width:1px; border-style:solid; }
	
	.textbox_number { font-family:verdana, arial, sans-serif; color:#000000; font-size: 11px; border-color:silver; border-collapse:collapse; border-width:1px; border-style:solid; text-align:right; width:50px; }