.hidden{
display:none;
}

.font18{
font-size:18px;
}

.font12{
font-size:12px;
}
#box_tab {
width: 500px;
height: 500px;
margin: 0px 0px 0px 0px;
}

#box_menu{
width: 500px;
height: 20px;
margin: 0;
padding: 0;
font-family: Tahoma, Verdana, sans-serif; 
font-size: 12px; 
}

#box_menu li{
display: inline;
}


#box_menu li a{
padding: 10px;
text-decoration: none;
}

.boxSelect1{
background:url(../images/btn_box2.gif) no-repeat;
}

.boxSelect2{
background:url(../images/btn_box1.gif) no-repeat;
}