ckeditor disappears while refreshing div

Hi all,

I have just discovered this great tool and trying to use it in my website. I am doing php programming and using a jquery adapter to make the editor show up in a div. I have two pages called openclosediv.php and content.php. In openclosediv.php page I have list of records and a button(show/hide div button) in openclosediv.php and these buttons brings content.php into openclosediv.php . In content.php page I have a ckeditor whenever I click the button, told above, the first time ckeditor appears however, after the first time whenever I push the button ckeditor does not appear.

Here is the code which shows/hides the div in openclosediv.php :

function ShowHideDiv(divid)
{

var block=document.getElementById(divid).style.display;
if(block=="none")
{
document.getElementById(divid).style.display="block";
}
else
{
document.getElementById(divid).style.display="none";
}
var data="divid="+divid;
jQuery('#'+divid).showLoading();
$.ajax({
type: "POST",
url: "content.php",
data: data,
error: function(){
alert('Error while loading!');
},
success: function(data){
jQuery('#'+divid).hideLoading();
$('#'+divid).html(data);
}
});
}
And here how I creat ckeditor in content.php:

$ckeditor = new CKEditor();
$ckeditor->basePath = 'ckeditor/' ;
CKFinder::SetupCKEditor( $ckeditor, 'ckfinder/' ) ;
$config['height'] = '300';
$config['width'] = '700';
$initialValue = "";
$ckeditor->editor("somename", $initialValue, $config);

Thanks in advance.