.pagetop {
    display: none;
    position: fixed;
    top: 150px;
    right: 0px;
}
.pagetop a {
    display: block;
    background-color: #;
    text-align: center;
    color: #fff;
    font-size: 12px;
    text-decoration: none;
    padding: 0 0;
}
.pagetop a:hover {
    display: block;
    background-color: #;
    text-align: center;
    color: #fff;
    font-size: 12px;
    text-decoration: none;
    padding:0 0;
	filter:alpha(opacity=50);
    -moz-opacity: 0.5;
    opacity: 0.5;
}