text: YUI.add('moodle-atto_italic-button', function (Y, NAME) {
  
  // This file is part of Moodle - http://moodle.org/
  //
  // Moodle is free software: you can redistribute it and/or modify
  // it under the terms of the GNU General Public License as published by
  // the Free Software Foundation, either version 3 of the License, or
  // (at your option) any later version.
  //
  // Moodle is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU General Public License for more details.
  //
  // You should have received a copy of the GNU General Public License
  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  
  /*
   * @package    atto_italic
   * @copyright  2013 Damyon Wiese  <damyon@moodle.com>
   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
   */
  
  /**
   * @module     moodle-atto_italic-button
   */
  
  /**
   * Atto text editor italic plugin.
   *
   * @namespace M.atto_italic
   * @class button
   * @extends M.editor_atto.EditorPlugin
   */
  
  Y.namespace('M.atto_italic').Button = Y.Base.create('button', Y.M.editor_atto.EditorPlugin, [], {
      initializer: function() {
          var italic;
  
          this.addButton({
              callback: this._toggleItalic,
              icon: 'e/italic',
              buttonName: italic,
              inlineFormat: true,
  
              // Key code for the keyboard shortcut which triggers this button:
              keys: '73',
  
              // Watch the following tags and add/remove highlighting as appropriate:
              tags: 'em, i'
          });
      },
      /**
       * Toggle the italic setting.
       *
       * @method _toggleItalic
       * @param {EventFacade} e
       */
      _toggleItalic: function() {
          var host = this.get('host');
  
          // Use the "italic" command for simplicity. This will toggle <em> tags off as well.
          document.execCommand('italic', false, null);
  
          // Then change all <i> tags to <em> tags. This will change any existing <i> tags as well.
          host.changeToCSS('i', 'bf-editor-italic-emphasis');
          host.changeToTags('bf-editor-italic-emphasis', 'em');
      }
  });
  
  
  }, '@VERSION@', {"requires": ["moodle-editor_atto-plugin"]});
  