ol#structure-subnav,
ol#products-subnav,
ol#cooperation-subnav {
width: 175px;
font: bold 1.2em/1em "Arial", Helvetica, sans-serif; 
color: #fff;
float: left;
margin: 0 0 5px 0;
}
ol#structure-subnav li, 
ol#products-subnav li,
ol#cooperation-subnav li {float:left;}
ol#structure-subnav li a,
ol#products-subnav li a ,
ol#cooperation-subnav li a {
display:block;
height: 28px;
width: 175px; 
border:none;
color: #fff;
 }
ol#structure-subnav li a span,
ol#products-subnav li a span.
ol#cooperation-subnav li a span {display:none;}

ol#structure-subnav li.one a {background:url(img/structure-subnav.gif) 0 0;}
ol#structure-subnav li.one a:hover {background:url(img/structure-subnav.gif) -175px 0; }
ol#structure-subnav li.one a.active {background:url(img/structure-subnav.gif) -350px 0; }
ol#structure-subnav li.two a {background:url(img/structure-subnav.gif) 0 -28px;}
ol#structure-subnav li.two a:hover {background:url(img/structure-subnav.gif) -175px -28px; }
ol#structure-subnav li.two a.active {background:url(img/structure-subnav.gif) -350px -28px; }
ol#structure-subnav li.three a {background:url(img/structure-subnav.gif) 0 -56px;}
ol#structure-subnav li.three a:hover {background:url(img/structure-subnav.gif) -175px -56px; }
ol#structure-subnav li.three a.active {background:url(img/structure-subnav.gif) -350px -56px; }

ol#products-subnav li.one a {background:url(img/products-subnav.gif) 0 0;}
ol#products-subnav li.one a:hover {background:url(img/products-subnav.gif) -175px 0; }
ol#products-subnav li.one a.active {background:url(img/products-subnav.gif) -350px 0; }
ol#products-subnav li.two a {background:url(img/products-subnav.gif) 0 -28px;}
ol#products-subnav li.two a:hover {background:url(img/products-subnav.gif) -175px -28px; }
ol#products-subnav li.two a.active {background:url(img/products-subnav.gif) -350px -28px; }

ol#cooperation-subnav li.one a {background:url(img/cooperation-subnav.gif) 0 0;}
ol#cooperation-subnav li.one a:hover {background:url(img/cooperation-subnav.gif) -175px 0; }
ol#cooperation-subnav li.one a.active {background:url(img/cooperation-subnav.gif) -350px 0; }