デモコード index.html <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>goog.ui.Button</title> <script src="http://closure-library.googlecode.com/svn/trunk/closure/goog/base.js"></script> <script> goog.require('goog.events'); goog.require('goog.events.EventType'); goog.require('goog.ui.decorate'); goog.require('goog.ui.Button'); goog.require('goog.ui.FlatButtonRenderer'); goog.require('goog.u