gistfile1.js

YUI({ debug: true,
      filter: 'debug',
      logInclude: { event: true, attribute: true },
      timeout: 10000 }).use("node", "attribute", "dd-drag", "dd-drop", "dd-constrain", function(Y) {

	Y.Node.prototype.toString = function() { … } // This works

	Y.DOM.hasClass = function(node, className) { … } // This doesn't

	// Here goes my own code
}