Temporarily stop processing in a jsp

Question

Hi,
I have the following question, and hope you can help.
I have a jsp, say a.jsp. During the processing the jsp may need additional information from the user. In that case it generates a pop-up window (using javascript) with a form that the user can fill in, and submit.
My questions:
1. Is it possible that a.jsp stops processing after generating the pop-up window? If so, how?
2. Is it possible that after the user submits the additional information a.jsp continues processing at the point after the generation of the pop-up window? If so, how?
Thank you for an answer,
Sponiza

Answer 1

It's possible although not exactly as you asked. Rather than stopping and starting the processing you would include or exclude content based on the state of your request. i.e. Let's assume that the first time a user enters your site you popup a form requesting they log in. If they've logged in you allow them to see the content of the page:
<% if (session.loggedIn == null || session.loggedIn == false) { %>
<script language="JavaScript">
popupLogin();
</script>
<% }  else { %>
// content content content...
<% } %>