CKEditor not editable second time

Hi,

I tried all the options z-index.. external js patch file and all things mentioned in forum but i am not able to find any solution

I am loading textarea in div like this

var ret = "<textarea id='ItemContent '></textarea>";

$("#article").html(ret); // where #article is div id.. this div position is absolute

#ItemContent is id of textarea

$('#ItemContent').ckeditor();

first time it is working fine but when loading again it is not editable... can anybody help please