head_menu {color: #FFA73D;font-size: 11px;font-family: tahoma;}    
.head_menu a {color: #FF7C00;text-decoration: none;}    
.head_menu a:hover {color: #FFA73D;text-decoration: underline;}    
.solidblockmenu{margin: 0;padding: 0;float: centr;font: bold 11px Arial;width: 100% ; background:#000000 repeat-x center center;}    
.solidblockmenu li{display: inline;}    
.solidblockmenu li a{float: left;color: #696969;padding: 3px 11px;text-decoration: none;}    
.solidblockmenu li a:visited{color: white;}    
.solidblockmenu li a:hover, .solidblockmenu li .current{width: 100%;color: #FF6633;background: transparent url(http://smart-portal.net.ru/navigmenu/menu2ewe.png) repeat-x center center;}    

a:hover img {    
    filter: progid: DXImageTransform.Microsoft.Alpha(opacity=50);    
    -moz-opacity: 0.5; /* Mozilla 1.6 */    
    -khtml-opacity: 0.5; /* Konqueror 3.1, Safari 1.1 */    
    opacity: 0.5; /* CSS3 - Mozilla 1.7b +, Firefox 0.9 +, Safari 1.2+, Opera 9 */    
    filter: alpha(opacity=50); /* IE 5.5+*/    
}[code]

  А само меню оформляем так: