title: Making HTML element visible/invisible depending on HttpServletRequest parameter
body: <p>I have a jsp page, which imports another jsp. This import is wrapped into div tag.
  Also I have parameter with values "true/false", which arrives from servlet as a request parameter.
  I wonder what's the way to change mentioned  visibility(with the help of "style.display" attribute) using the request parameter value. The div should be visible/invisible immediately after page loads.
  Any ideas? Thanks in advance.</p>