.ttl-nuestra {
    background: url(../images/ttl_nuestra.gif) no-repeat;
    width: 145px;
    height: 17px;
    display: block;
    margin-bottom: 5px;
    text-indent: -9999px;
}

.ttl-diferencia,
.ttl-proceso,
.ttl-nuestra-historia {
    height: 17px;
    display: block;
    margin-bottom: 5px;
    text-indent: -9999px;
}

.ttl-diferencia {
    background: url(../images/ttl_diferencia.gif) no-repeat;
    width: 250px;
}
.ttl-proceso {
    background: url(../images/ttl_proceso.gif) no-repeat;
    width: 220px;
}
.ttl-nuestra-historia {
    background: url(../images/ttl_nuestra_historia.gif) no-repeat;
    width: 175px;
}

/************************************
* About Us Subnavigation
************************************/

div#subnav { 
    height: 90px; 
    width: 202px; 
    margin: 0 0 20px 0; 
    padding: 0; 
    border: 0; 
}

div#subnav ul#submenu { 
    height: 90px; 
    width: 202px; 
    background: url(../images/subnav_nuestra.gif) top left no-repeat; 
    margin: 0; 
    padding: 0; 
    position: relative; 
}

div#subnav ul#submenu li { 
    margin: 0; 
    padding: 0; 
    list-style: none; 
    position: absolute; 
}

ul#submenu li, ul#submenu a { 
    width: 202px; 
    display: block; 
}

div#subnav ul#submenu li a { 
    text-indent: -9999px; 
    text-decoration: none; 
}

#historiamenu { top: 0px; }
#diferenciamenu { top: 33px; }
#procesomenu { top: 59px; }

#historiamenu a { height: 33px; }
#diferenciamenu a { height: 26px; }
#procesomenu a { height: 31px; }

#historiamenu a:hover { background: url(../images/subnav_nuestra.gif) -202px 0 no-repeat; }
#diferenciamenu a:hover { background: url(../images/subnav_nuestra.gif) -202px -33px no-repeat; }
#procesomenu a:hover { background: url(../images/subnav_nuestra.gif) -202px -59px no-repeat; }

body.historia-on #historiamenu  { background: url(../images/subnav_nuestra.gif) -202px 0 no-repeat; }
body.diferencia-on #diferenciamenu  { background: url(../images/subnav_nuestra.gif) -202px -33px no-repeat; }
body.proceso-on #procesomenu  { background: url(../images/subnav_nuestra.gif) -202px -59px no-repeat; }