gistfile1.js

YUI().use('event', 'io', function(Y) {
    ...
 
    Y.on('click', function(ev) {
        // lazy-load admin stuffz
        Y.OhYeahUseTheseToo('anim', 'admin-module', function() {
          // anim and admin-module are now available on the existing Y instance
  
        });
 
    }), '#adminTab');
};