text: define(function(require) {
      'use strict';
      var PreviewView,
          Backbone = require('lib/backbone'),
          ToolbarPView = require('views/toolbar.pv'),
          FilterGroupPView = require('views/filtergroup.pv'),
          TablePView = require('views/table.pv'),
          Tablefunc = require('views/tablefunc.pv');
      PreviewView = Backbone.View.extend({
          el: '.JpreviewContainer',
          initialize: function() {
              this.render();
          },
          render: function() {
              new TablePView();
              new ToolbarPView();
              new FilterGroupPView();
              new Tablefunc();
          }
      });
      return PreviewView;
  })