#nav_top { width:720px; height:76px; background:url(menu/top.jpg) top left no-repeat; line-height:0; padding:0; margin:0;}
#nav_top span {display:none;}

#nav_left { width:150px; height:369px; background:url(menu/left.jpg) top left no-repeat; line-height:0; padding:0; margin:0;}
#nav_left span {display:none;}

#nav_right { width:160px; height:369px; background:url(menu/right.jpg) top left no-repeat; line-height:0; padding:0; margin:0;}
#nav_right span {display:none;}

#nav_bottom { width:720px; height:33px; background:url(menu/bottom.jpg) top left no-repeat; line-height:0; padding:0; margin:0;}
#nav_bottom span {display:none;}

body, table td{margin:0; padding:0; font-family:Arial, Helvetica, sans-serif; font-size:12px;}

.toptable{
valign:bottom;
height:66px;
}