title: GAE jinja2: how to automatically pop up a new window in a browser?
body: <p>Is there a way to automatically pop up a new window in a browser in gae python jinja2? That is, a way for doing what JavaScript command window.open() does?
  The new pop window should be open when user click in a button to query datastore. So he can query in the new window, select a query result and come back to the previous window after closing the poped window.</p>