title: How to use an external jsp file as a overlay
body: <p>I have to popup an external jsp page as a popup when i click on hyperlink. And also I have to submit this page after performing some field validation. It is possible while using iframe. But it takes time to load the page. 
  For example I have one link <strong>registerNow</strong>, after click on this link I have to show registration page as a overlay. And then after performing some field validations I have to <strong>submit</strong> the page. At that time the <strong>url</strong> of the application should not changed.</p>