Style display none problem

Hi,
 I have a asp.net application.In this application, am having Ckeditor.I wrote the javascript code for Onfocus and Onblur event.The code is working. But the problen is Onblur event. In the Blur event am making the style as none and it is making the resize the entire control.
I want to make the ckeditor  size is fixed, and no resize will be happened on the Blur event.How can i fix?

Code is,
$(document).ready(function () {                          CKEDITOR.replace('CKEditor1',                                                 {       &nbs ...