setData and getData confusion !??!

Hi there,

I'm using CKEditor 3.0.1 and my problem is:

I get a value from database to an textarea. The data returned from the database is a xml column.
After using

CKEDITOR.replace

i execute

editor.getData()

and i check
that all special chars are replace by there code (ç - ç). The problem is when i try to send the value to the database, ç is consider as a invalid char. Is there any way to disable the CKEditor replace of the special chars.

Sometimes, when i try to execute

setData()

i get

this.$.innerHTML is null or not an object

Thanks.