shortcutkeys['SHIFT + D'] = {
  description : 'LDR hatebu comment',
  execute : function(e){
    with(getMostRecentWindow()){
      var url = content.window.location;
      var regex = /^http:\/\/reader\.livedoor\.com\/reader\//i;
      if(regex.test(url)){
        cancel(e);
        if (typeof hBookmark != 'undefined'){
          var item = content.window.wrappedJSObject.get_active_item(true);
          var permalink = item.link.replace(/#/, '%23');
          hBookmark.CommentViewer.toggle(permalink);
        }
       }
    }
  }
}