#topnavi a { background-image: url(../gfx/topnav_no_a.gif); background-repeat:no-repeat; }
#topnavi a:hover{ background-image: url(../gfx/topnav_no_b.gif); background-repeat: no-repeat; }
#topnavi .active{ background-image: url(../gfx/topnav_no_c.gif); background-repeat: no-repeat; }

#topnavi a.t1 {width:60px; background-position:0px 0px;}
#topnavi a.t2 {width:81px; background-position:-69px 0px;}
#topnavi a.t3 {width:95px; background-position:-159px 0px;}
#topnavi a.t4 {width:99px; background-position:-263px 0px;}