title: Page redirect / refresh using ExtJS
body: <p>My Web application makes use of Ext JS &amp; Java web technology. Due to the size and complexity of the application, I need to 
   do a complete refresh of the page (load a different page) when user select some menu from the menu bar. What is the best what to redirect to the required page?  </p>
  
  <p>For example, In my main menu, I have two menu Stock &amp; Location. These two menu will take
   the user to different JSP files (stockmgt.jsp &amp; locmgt.jsp) with new layouts,menu items etc.</p>
  
  <p>One possibility is to use location.href in the button or menu handler. But if I do this, will I retain the session variables, and other parameters? </p>
  
  <p>What are the best practices in doing these kind of redirect or page refresh?<br>
    Thanks in advance for the ideas, comment and suggestions.</p>