gistfile1.js

YUI.add('moodle-block_codex_about-toggler', function(Y) {
  // Your module code goes here.

  // Define a name space to call
  M.block_codex_about = M.block_codex_about || {};
  M.block_codex_about.toggler = {
    init: function() {
        var toggleShow = function (e,param) {
            console.log('test');
            console.log(param);
        };
        Y.all('.codex_about_link').each(function(region){
            var id = region.get("id");
            console.log(id);
            region.on('click', toggleShow, this, id);
        });

    }
  };
}, '@VERSION@', {
  requires: ['node']
});