coding Buku tamu

<style type="text/css">
#gb{
position:fixed;
top:50px;
z-index:+1000;
}
* html #gb{position:relative;}
.gbtab{
height:100px;
width:30px;
float:left;
cursor:pointer;
background:url('https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0iDDrYgxSpTgKlKUNMpvQuBS-VZS8LusAcfJ0De1K7rtqWI-wMH5nJSYcvXdAxZL9Fh1KhmNKk8BNTZRkrZJAqx5sK6e9cwJ0xOLedQyXFptpm_FhnkXPDVg1i88ODuV5bLoQGOYwzNo/s1600/bukutamu.png') no-repeat;
}
.gbcontent{
float:left;
border:2px solid #A5BD51;
background:#F5F5F5;
padding:10px;
}
</style>
<script type="text/javascript">
function showHideGB(){
var gb = document.getElementById("gb");
var w = gb.offsetWidth;
gb.opened ? moveGB(0, 30-w) : moveGB(20-w, 0);
gb.opened = !gb.opened;
}
function moveGB(x0, xf){
var gb = document.getElementById("gb");
var dx = Math.abs(x0-xf) > 10 ? 5 : 1;
var dir = xf>x0 ? 1 : -1;
var x = x0 + dx * dir;
gb.style.right = x.toString() + "px";
if(x0!=xf){setTimeout("moveGB("+x+", "+xf+")", 10);}
}
</script>
<div id="gb">
<div class="gbtab" onclick="showHideGB()"> </div>
<div class="gbcontent">
<div id="cboxdiv" style="position: relative; margin: 0 auto; width: 200px; font-size: 0; line-height: 0;">

<div style="position: relative; height: 300px; overflow: auto; overflow-y: auto; -webkit-overflow-scrolling: touch; border: 0px solid;"><iframe src="http://www5.cbox.ws/box/?boxid=896455&boxtag=s7fxn0&sec=main" marginheight="0" marginwidth="0" frameborder="0" width="100%" height="100%" scrolling="auto" allowtransparency="yes" name="cboxmain5-896455" id="cboxmain5-896455"></iframe></div>

<div style="position: relative; height: 80px; overflow: hidden; border: 0px solid; border-top: 0px;"><iframe src="http://www5.cbox.ws/box/?boxid=896455&boxtag=s7fxn0&sec=form" marginheight="0" marginwidth="0" frameborder="0" width="100%" height="100%" scrolling="no" allowtransparency="yes" name="cboxform5-896455" id="cboxform5-896455"></iframe></div>

</div>

<div style="text-align:right">
<a href="http://hedryiks.blogspot.com/2014/05/cara-membuat-buku-tamu-di-blog-dengan.html">[get this widget]</a>><a href="javascript:showHideGB()">
[Tutup]
</a>
</div>
</div>
</div>
<script type="text/javascript">
var gb = document.getElementById("gb");
gb.style.right = (30-gb.offsetWidth).toString() + "px";
</script></div></div>