HowTo destroy instance on blur?

Hi,

i have a single html page with mulitple div elements on it. Each time a user clicks on on a div, it is replaced with an CKEditor on the fly:

$('.editable').click(function() {
    editor = CKEDITOR.replace(this);
});

Now, if the CKEditor instance loses its focus (blur event), i need to post the content to a separate script via ajax (if something changed) and destroy this instance:

$('.editable').click(function() {
    editor = CKEDITOR.replace(this);
    editor.on('blur', function(e)
    {
        if (e.editor.checkDirty())
           // get data with e.editor.getData() and do some ajax magic 

        e.editor.destroy();
    });
});

But this example won't work because, i don't know why, destory() will be called before (?!) checkDirty(). How can i get this working?

Thank you very much