.cssnav_1
{
position: relative;
font-family: arial, helvetica, sans-serif;
background: url(img/details_on.gif) no-repeat;
white-space: nowrap;
display: block;
width: 37px;
height: 82px;
margin: 0;
padding: 0;
}

 .cssnav_2
{
position: relative;
font-family: arial, helvetica, sans-serif;
background: url(img/specs_on.gif) no-repeat;
white-space: nowrap;
display: block;
width: 37px;
height: 102px;
margin: 0;
padding: 0;
}

 .cssnav_3
{
position: relative;
font-family: arial, helvetica, sans-serif;
background: url(img/demo_on.gif) no-repeat;
white-space: nowrap;
display: block;
width: 37px;
height: 105px;
margin: 0;
padding: 0;
}


.cssnav_1 a
{
display: block;
font-size: 11px;
width: 37px;
height: 82px;
display: block;
float: left;
text-decoration: none;
}


.cssnav_2 a
{
display: block;
color: #ffffff;
font-size: 11px;
width: 37px;
height: 102px;
display: block;
float: left;
color: white;
text-decoration: none;
}

.cssnav_3 a
{
display: block;
color: #ffffff;
font-size: 11px;
width: 37px;
height: 105px;
display: block;
float: left;
color: white;
text-decoration: none;
}


.cssnav_1 img
{
width: 37px;
height: 82px;
border: 0
}

.cssnav_2 img
{
width: 37px;
height: 102px;
border: 0
}

.cssnav_3 img
{
width: 37px;
height: 105px;
border: 0
}


* html a:hover
{
visibility:visible
}

/*.cssnav_1 a:hover img
{
visibility:hidden
}

.cssnav_2 a:hover img
{
visibility:hidden
}

.cssnav_3 a:hover img
{
visibility:hidden
}*/

/*
.cssnav_1 span
{
position: absolute;
left: 35px;
top: 15px;
margin: 0px;
padding: 0px;
cursor: pointer;
}*/