/* Barre de menu */
.tab_fixed
{
   position: fixed;
   width: 100%;
   right:0px;
   left: 0px;
   bottom: 0px;
   background: #ffffff;
   margin-right:0px;
   margin-left:0px;
 	 z-index:15;
 	 text-align:center;
    filter : alpha(opacity=90);
    -moz-opacity : 0.9;
    opacity : 0.9;
}

.center_menu
{
	text-align:center;
	font-size: 1.0em;
	font-weight: bold;	
	padding: 3px 4px;
}

.center_menu a:link,.center_menu a:active,.center_menu a:visited
{
  text-align:center;
}

.center_menu a:hover
{
  text-decoration:none;
}