<meta http-equiv=Refresh content=0;url="URL">

- Javascript
  location.href="URL";

- ASP
  <% RESPONSE.REDIRECT "URL" %>

- PHP
  <? header("Location: URL"); ext; ?>
  or
  echo "<meta http-equiv='refresh' content='0;url=URL'>"; 

- JSP
  <% response.sendRedirect("URL"); %>