To add the Greetings Card plugin, insert the following JavaScript call into your code:
CKEDITOR.replace( 'textarea_id', {
extraPlugins: 'xmas'
} );
Use the following configuration options to create your own card:
CKEDITOR.replace( 'textarea_id', {
extraPlugins: 'xmas',
xmas_wishes: '<p class="big">Ho! Ho! Ho!</p>',
xmas_signature: 'Santa Claus',
xmas_link: 'en.wikipedia.org/wiki/Santa_Claus'
} );