How to close window that pop up other window

Question

hey , please help me
How to I close window that produce pop window that produce the login page if the session is expired .How do I close the page produce that direct yo the login page that . below is coding used to validate if the page has expried .
if (session == null ) {
     response.sendRedirect ("../mr_emplogin.jsp");
    //check whether the password still keep in session object
    HttpSession ses = request.getSession(false);
    ///if password removed
   if (ses.getValue("password") == null) {
        //go back to mr_emplogin.jsp
     session.invalidate();
     System.out.println("Your session has expired! Please login again!");
     response.sendRedirect ("../emplogin2.jsp");
    }How do desctroy the current session and close the window parent window. please help me any idea will do .It is quite emergency.
Thank you

Answer 1

I tried window.close() and self.close() both are giving me errors (I am certain the problem is with the script)..What does the error messages say? Is it a server error or a Javascript error?
<c:redirect url="index.jsp"/>
<script>
     function didit(){
     window.close()
</script><c:redirect> sends a temporary redirect response to the client using the specified redirect location URL("index.jsp" in your case). Once you redirect, the response should be considered to be committed and should not be written to. The javascript codes that follow the <c:redirect> tag clearly violates this.
If your objective is to close the window then why are you redirecting?