span.navigation {
font-family:Arial, Helvetica, sans-serif;
font-size: 13px; 
				 font-weight: bold; 
				 text-align: center;
				 
                }
/*p.navigation is the holder unit for the block links. It also specifies larger bold text*/

span.navigation a {display:block; 
 				
				color: #ffffff;/*color de texto cuando LINK*/
                background-image:url(images/h1.jpg);
				height:28px;
				 
			    text-decoration: none;
				text-align: center;
                padding: 17px 0px 0px 0px; 
			    border: 0px solid black;}

span.navigation a:visited {display:block;
				color: #ffffff; /*color de texto cuando VISITADO*/
          		background-image:url(images/h1.jpg);
				height:28px;				 
			    text-decoration: none;
				text-align: center;
                padding: 17px 0px 0px 0px; 
 				border: 0px solid black;}

span.navigation a:hover {display:block; 
			    color: #FF6600; /*color de texto cuando over*/
				background-image:url(images/h2.jpg);
			    height:28px;				 
			    text-decoration: none;
				text-align: center;
                padding: 17px 0px 0px 0px;  
			    border: 0px solid white;}