
#gb{
position:fixed;
top:25px;
z-index:+1000;
}
* html #gb{position:relative;}
.gbtab{
height:150px;
width:30px;
float:left;
cursor:pointer;
background:url('http://i1148.photobucket.com/albums/o572/ahmadbj/GUESTBOOK111.png') no-repeat;
...