JSP- Servlet- Same JSP - Urgent HELP!

Question

I have a scenario as follows:
The JSP is a Login JSP which forwards the request to the Servlet to validate the Login info from the HTML. This I do by submitting the JSP page to itself & in the beginning checking if the Submit button was clicked, if yes, then I extract all the form elements by request.getPArameter(element name) & set in on the request using request.setAttribute() methods! The servlet uses the values by doing a request.getAttribute() & say, a validate User failure, the servlet ahs tor edirect user to the same Login.jsp page, but the second time, the "Submit" button value is still true, since the servlet forwards the same request, response & this ends in an infinite loop, of JSP calling Servlet, the User validation fails & the Servlets calls the JSp again, and so on.
How do I reset the HTML form element values in the JSP before forwarding to the Servlet? is there a request.setParameter() method? Or is there a way for the servlet to forward a new request & response to the same JSP?
Thanks in advance.

Answer 1

if the user is invalid.. redirect them to the error page and in the error page pu this javascript... It will refresh the page so the loop will not happen.
<script language="JavaScript">
var sec2count = "2"
var redirectpage = "Login.jsp"
function countdown() {
if (sec2count == "0") {
document.location = redirectpage
else {
sec2count = sec2count - 1
document.form1234.counter.value = sec2count
setTimeout("countdown()", 1000)
countdown()
</script>