#menu{
text-align:left;
float:left;
}
#menu a{
display:block;
width:150px;
height:25px;
background:url(bt.gif) no-repeat;
color:#999999;
text-decoration:none;
font-size:11px;
font-weight:bold;
}
#menu a:hover{
color:#ffffff;
background:url(btover.gif) no-repeat;
background-color:#ffffff;
}