.navi a:link, .navi a:active, .navi a:visited
{
display: block;
width: 147px;
line-height: 27px;
text-decoration: none;
font-family: Tahoma, Arial, Verdana;
font-size: 11px;
letter-spacing: 1pt;
font-weight: bold;
color: #000000;
text-align: center;
background-image: url('button2.gif')
}
.navi a:hover
{
font-family: Tahoma, Arial, Verdana;
font-size: 12px;
letter-spacing: 1pt;
color: #000000;
background-image: url('button4.gif')
}