Submitting data from ckeditor tags are cut

[eluser]mstdmstd[/eluser]
Hi all,
I want to include ckeditor in my ci 2.2 project, I do it with JS code like

Code:

jQuery(document).ready(function ($) {
            CKEDITOR.replace('content_textarea', {
                on: {
                    pluginsLoaded: function (evt) {
                        var doc = CKEDITOR.document, ed = evt.editor;
                        if (!ed.getCommand('bold'))
                            doc.getById('exec-bold').hide();
                        if (!ed.getCommand('link'))
                            doc.getById('exec-link').hide();
                    }
                }
            });
        });

it work but submitting the form the html tags are cut when submitting data to database
In config file I set value

Code:

$config['global_xss_filtering'] = false;

but result was the same. How to fix it ?
If theere is something better of ckeditor for CI project? ckeditor is power and easy...