#global_nav { /* ul */
    list-style-type:none;
    float:right;
    width:564px;
    height:36px;
    padding:0 0 3px 0;}
#global_nav li {
    float:left;
    width:135px; height:36px;
    margin-right:6px;}
#global_nav li a {
    display:block;
    width:135px; height:36px;
    background-position:0 -36px;} 
#global_nav li a:active, 
#global_nav li a.tab_on {
    background-position:0 0;
    border-bottom:none !important;
    border-bottom:none;}
#global_nav li a:hover {
	background:none;
	border-bottom:none !important;}
#nav_tab_1, #nav_tab_1 a { background:url(../images/nav_hdtv.jpg) no-repeat;}
#nav_tab_2, #nav_tab_2 a { background:url(../images/nav_projectors.jpg) no-repeat;}
#nav_tab_3, #nav_tab_3 a { background:url(../images/nav_cinema.jpg) no-repeat;}
#nav_tab_4, #nav_tab_4 a { background:url(../images/nav_technology.jpg) no-repeat;}