old_contents: /*
   * PaySwarm JavaScript library.
   *
   * Copyright 2010-2012 Digital Bazaar, Inc.
   * License: LGPLv3.
   */
  
  /**
   * Expands the asset information when the title is clicked.
   *
   * @param postId the identifier for the post
   */
  function toggleAssetInformation(postId) {
    var assetInfo = document.getElementById('payswarm-asset-info-' + postId);
    var className = assetInfo.getAttribute('class');
  
    // toggle the hidden CSS state for the attribute
    if(className === 'hidden') {
      assetInfo.setAttribute('class', '');
    }
    else {
      assetInfo.setAttribute('class', 'hidden');
    }
  }
  
  /**
   * Sets the target of a form submission to a popup that will redirect to
   * the PaySwarm Authority.
   *
   * @param form the form that is being submitted.
   */
  function showAuthorityPopup(form) {
    var width = 700;
    var height = 600;
    var popup = window.open('', 'payswarm',
      'left=' + ((screen.width-width)/2) +
      ',top=' + ((screen.height-height)/2) +
      ',width=' + width +
      ',height=' + height +
      ',resizeable,scrollbars');
    form.target = 'payswarm';
  }
  
  /**
   * Closes any pop up window and loads the given url.
   *
   * @param url the URL to load in the parent.
   */
  function closePopup(url) {
    if(window.opener === null) {
      window.location = url;
    }
    else {
      window.close();
      window.opener.location = url;
    }
  }
  
  /**
   * Shows/hides the license input field in the payswarm meta box.
   *
   * @param container the ID of the license input container.
   * @param checkbox the ID of the default license checkbox.
   */
  function toggleLicenseInput(container, checkbox) {
    container = document.getElementById(container);
    checkbox = document.getElementById(checkbox);
    container.className = (checkbox.checked ? 'hidden' : '');
  }
  
new_contents: /*
   * PaySwarm JavaScript library.
   *
   * Copyright 2010-2012 Digital Bazaar, Inc.
   * License: LGPLv3.
   */
  
  /**
   * Expands the asset information when the title is clicked.
   *
   * @param postId the identifier for the post
   */
  function toggleAssetInformation(postId) {
    var assetInfo = document.getElementById('payswarm-asset-info-' + postId);
    var className = assetInfo.getAttribute('class');
  
    // toggle the hidden CSS state for the attribute
    if(className === 'hidden') {
      assetInfo.setAttribute('class', '');
    }
    else {
      assetInfo.setAttribute('class', 'hidden');
    }
  }
  
  /**
   * Sets the target of a form submission to a popup that will redirect to
   * the PaySwarm Authority.
   *
   * @param form the form that is being submitted.
   */
  function showAuthorityPopup(form) {
    var width = 700;
    var height = 600;
    window.open('', 'payswarm',
      'left=' + ((screen.width-width)/2) +
      ',top=' + ((screen.height-height)/2) +
      ',width=' + width +
      ',height=' + height +
      ',resizeable,scrollbars');
    form.target = 'payswarm';
  }
  
  /**
   * Closes any pop up window and loads the given url.
   *
   * @param url the URL to load in the parent.
   */
  function closePopup(url) {
    if(window.opener === null) {
      window.location = url;
    }
    else {
      window.close();
      window.opener.location = url;
    }
  }
  
  /**
   * Shows/hides the license input field in the payswarm meta box.
   *
   * @param container the ID of the license input container.
   * @param checkbox the ID of the default license checkbox.
   */
  function toggleLicenseInput(container, checkbox) {
    container = document.getElementById(container);
    checkbox = document.getElementById(checkbox);
    container.className = (checkbox.checked ? 'hidden' : '');
  }
  
subject: Remove unnecessary variable.