How to Guestbook Show Hide from above

Guestbook reply in his Guest Book click the widget it will come down from above.
How the heck do I make it?
How to make: 

1. Login blogge
 2. The design, Add a Gadget, html / javascrip 
3. And Save the following code:

<style type="text/css">
#at{
position:fixed;
right:450px;
z-index:+1000;
}
* html #at{position:relative;}
.attab{
height:100px;
width:30px;
float:left;
cursor:pointer;
background:url();
}
.atcontent{
float:left;
border:2px solid #999;
background: #000;
-moz-border-radius-topleft:15px;
-moz-border-radius-topright:15px;
-moz-border-radius-bottomleft:15px;
-moz-border-radius-bottomright:15px;
padding:10px;
-moz-box-shadow: 0px 2px 5px 0px #f8f9b9;
}
</style>
<script type="text/javascript">
function showHideAT(){
var at = document.getElementById("at");
var w = at.offsetWidth;
at.opened ? moveAT(0, -200-w) : moveAT(20-w, 0);
at.opened = !at.opened;
}
function moveAT(x0, xf){
var at = document.getElementById("at");
var dx = Math.abs(x0-xf) > 25 ? 35 : 1;
var dir = xf>x0 ? 1 : -1;
var x = x0 + dx * dir;
at.style.top = x.toString() + "px";
if(x0!=xf){setTimeout("moveAT("+x+", "+xf+")", 10);}
}
</script>
<div id="at">
<div class="attab" onclick="showHideAT()"> </div>
<div class="atcontent">
<div align="center">
<div style="background:#000;">

<center><!-- Begin ShoutMix - http://www.shoutmix.com --><iframe title="luswandy" src="http://www.shoutmix.com/?luswandy" width="100%" frameborder="0" height="370" scrolling="auto">&amp;amp;amp;amp;amp;lt;a href="http://www.shoutmix.com/?luswandy"&amp;amp;amp;amp;amp;gt;View shoutbox&amp;amp;amp;amp;amp;lt;/a&amp;amp;amp;amp;amp;gt;</iframe>

<a href="http://www.shoutmix.com/" title="Get your own free shoutbox chat widget at ShoutMix!">ShoutMix chat widget</a>

<!-- End ShoutMix --></center>

</div>
</div>

<br />
<div align="right"><a href="javascript:void(0);" onclick="showHideAT()"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9pUOWGZCnhWBHHjh1iBAC_PWb7GkCsiMFsnsJYgZKuSpQ8GauvVKrptYUh0f0T20d2X2Ep5BTrtOxJEwGTedAx7ENoUVI5mWUHdP2UAGLrm6NMe_pjVBteL1cPigIJ9cqsbsr0xzl8YI/s1600/CLOSE.png" alt="close" title="Click here to Close Cbox" /></a></div>

</div></div>


<script type="text/javascript">
var at = document.getElementById("at");
at.style.top = (-200-at.offsetWidth).toString() + "px";
</script>

<center><a href="javascript:void(0);"onclick="showHideAT()"/><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQE3npJtAhJXwfIo1FaSz-8TCeDQEYXXjfaebBjFz9UFeYK0_IpEkAn8KH6n3MBg0z3xuTDMmh4849fe-RCqteXQYpjPJ2TQfuuZ0mqzEfY_fGzxHTwzDk20qEhcSOCIkPY0x4ppjBjm4/s1600/guestbook.png" alt="cbox" title="Click here to open Guest Book" /></a></center>



Please adjust their placement with the desire / delight you
Attention red code is the code of your guest book after you regestrasi to ShoutMix - Click Here ........... Obviously .....
already ................ save .......

hopefully useful!