Generated JNLP and closing the original browser window

Hi All, This is my first post so bear with me. Here is my problem.
I am using Web Start for an application.
I need to check to see if web start is installed or not.
If it is NOT I need to auto-install
if it is I need to call a servlet that dynamically generates the jnlp with the user that I passed in as <arguments/> maybe other arguments in the future also
I need to shut the original browser window
I will use this servlet in multiple web apps
I have it working like this but I don't think it is clean enough
I call a servlet with the syntax checkJREServlet?USER=username
this servlet writes out:
<html>
<body>
<h1>Installing Java Runtime</h1>
<OBJECT
CLASSID="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
width="0" height="0"
codebase="http://<myservler>/<plugins folder>/j2re-1_4_2-windows-i586.exe#Version=1,4,2,0">
<PARAM NAME="code" VALUE="redirectAndClose.class"> //my applet class
<PARAM NAME="archive" VALUE="RedirectUtil.jar"> //the jar where my applet class is stored
<PARAM NAME="archive_cache" VALUE="RedirectUtil.jar">
<PARAM NAME="type" VALUE="application/x-java-applet">
<PARAM NAME="where_to_next" VALUE="http://<myservler>/<mywebapp>/openAppServlet?USER=username">
You did not install Java.
<p>Please use the <b>Back</b> button to return to the previous page.
</OBJECT>
</body>
</html>
I have redirectAndClose which is:
import java.applet.Applet;
import java.net.URL;
import java.net.MalformedURLException;
import netscape.javascript.*;
public class redirectAndClose
extends Applet
java.util.Timer timer = null;
int seconds = 5;
public void start()
try
getAppletContext().showDocument(
new URL(getCodeBase(), getParameter("where_to_next")), "_blank");
//now we have to close ourselves in 5 seconds
timer = new java.util.Timer();
timer.schedule(new java.util.TimerTask()
public void run()
timer.cancel(); //Terminate the timer thread
destroy();
, seconds * 1000);
catch(MalformedURLException e)
throw new RuntimeException(e);
public void destroy()
super.destroy();
//close this window because we don't need it
JSObject win = (JSObject)JSObject.getWindow(this);
win.eval("window.opener=self;self.close();");
If try to close without a timer my entier session gets killed, including my webstart app that the openAppServlet wrote out the jnlp for
I hate this because it is not definite. I want to DEFINITELY know when my webstart app is open and I can close this original window. Like a whenWindowExists then close me but I have no clue how to do this.
The "where_to_next" location is a servlet that will dynamically build a jnlp file specific for each web app building it from parameters in web.xml for each individual web app. Basically I will have to store the actual name of the class, the jar href's I will be needing, title, vendor, description, basically everything that can be different.
So what I need is some kind of library so I can include it in multiple web apps EASILY. I don't want to have to write a document on how to include this thing. It should be self explainatory. I originally just mapped to the first servlet in my web.xml and then included the jar file but it appears to be non-existent in my project. Maybe some suggestions on what others would do may help me.
Thanx in advance

I don't want to use a timer because who knows if the servlet that writes out the dynamic jnlp will get hung up for a little while or any number of other reasons. If that did happen the timer would kick off and close my web start app. I cannot have this.

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"sammas" <[email protected]> wrote in
message
news:f8t28c$b6j$[email protected]..
>I have a page with thumbnail images. I want to be able to
click the
>thumbnail
> and have a new window open with just that image in the
window. If I don't
> assign a link to the thumbnail, and select the Open
Browser Window
> behavior,
> the only 3 options for when to open the window are
onLoad, onError, or
> onAbort.
> I want it to be opened onClick. If I do assign a link to
the image, and
> then
> select the Open Browser Window behavior, it gives me the
option to open
> the
> window onClick. However, when I test it, it opens 2 new
windows - the one
> I
> want, and the one that is the link that I assigned to
the image.
>
> I can't figure this out! Any help would be greatly
appreciated.
>
> Sam
>

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