Kode Show Hide C-Box

<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 #00ff00;
-moz-box-shadow: -2px 2px 25px lime;
background:#000 no-repeat center;
-moz-border-radius-topleft:15px;
-moz-border-radius-topright:15px;
-moz-border-radius-bottomleft:15px;
-moz-border-radius-bottomright:15px;
padding:10px;
}
</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:url();">

<!-- Masukan Kode Cbox Anda -->

</div>
</div>
</div>
<br/>
<div align="right"><a href="javascript:void(0);" onclick="showHideAT()"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhalXHCKgTUhYFtZ6iWxYwMrIOkCCorAXg53n3FQBGABpg-5D1bMOCM0JEEZYeHhiHFe3UA2TO1j2eiped4PN_Qvv22Y0DXr7zPlIMdcOQ46naxmSuRM3hx9vPCHb2JIQirL3hT0gS0dK8l/s1600/close.png" alt="close" title="Click here to Close Cbox" /></a></div>
</div>

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

<div style='display:scroll; position:fixed; top:80px; left:3px;'><a href="javascript:void(0);"onclick="showHideAT()"/><img src="http://dl.dropbox.com/u/24368183/chatbox.gif" /></a>
</div>