.tp {position:relative;text-indent:0;}
.tp b {
   border-bottom:#90f 1px dotted;
   color:#90f;
   font-weight:normal;
}
.tp b span {display:none;}
/*-- для FF, OPERA, IE7 --*/
.tp b:hover {
   border-bottom:red 1px dotted;
   color:red;
}
.tp b:hover span {
   background:#ffffff;
   border-top: #1c6ca1 dotted 1px;
   border-bottom: #1c6ca1 dotted 1px;
   color:#000;
   display:block;
   padding:3px;
   position:absolute;
   top:2px;
   left:5px;
   z-index:100;
   text-align:left;

}


.tp b {behavior:url(hover.htc);}
.tp .hover {
   border-bottom:red 1px dotted;
}
.tp .hover span {
   background:#ffffff;

   color:#000;
   display:block;
   padding:3px;
   position:absolute;
   top:2px;
   left:5px;
   z-index:100;
   text-align:left;

}