Change language of CKEDITOR in RAPIDWEAVER with WEBYEP

Hi people. I'm usig the CKEDITOR correctly in one web created with Rapidweaver and WebYep. When I create a Rich Text area automatically with WebYep and try to edit it via navigator online, the menu (with CKEDITOR integrated) loads only in english. I've modified the config.js and changed to 'es' but it doesn't work correctly. Can anybody help me? Thanks for you time:

CKEDITOR.editorConfig = function( config )
{
// Define changes to default configuration here. For example:
// config.language = 'fr';
// config.uiColor = '#AADC6E';
config.language = 'es';
config.uiColor = '#cccdcf';
};