Maintaining session across multiple browser windows and page refreshes

Hi there,
We're currently developing a Flex application with a couple of session-related requirements that we're not sure how to solve. Before we jump in and maybe go about things in the wrong way, I thought I'd post and see if anyone here knows of some elegant solutions!
Currently, when our Flex app starts the user is presented with a log-in screen which authenticates the user against our server. Client-server communication is done through BlazeDS.
Our first requirement is the ability to open a new browser window from Actionscript - this window will load a pdf document. The servlet that serves this pdf should deny the request if the user is not already logged in. The only way we can see to do this so far is to open the pdf url using navigateToUrl() with the '_blank' target, passing a jsessionid token as a url parameter. Is there a better way to preserve session state when opening a new window?
The second requirement is to preserve some application and session across browser refreshes. Our Flex app has several screens that the user can tab between. If the user hits F5 or the refresh button in their browser, we'd like the app to return to the same screen after the refresh. I've been looking into using BrowserManager to add a fragment such as #screen=2 to the url, but of course we only want the app to display screen 2 if the user has already authenticated with the server. Is there a way to reuse the user's existing session credentials after a page refresh?
Many thanks in advance for any advice anyone can offer on this. It could very well be that we're missing something about how BlazeDS uses / exposes session credentials that would make all of this easier to implement than we currently realise!

We use javascript to pass values between a 'data look up' window and the originating Servlet. If this is of any use, I can send you some examples.

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Hello,
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>>
Running this wizard in multiple browser windows or tabs will/could cause malformed data to be saved.
>>
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zzsara wrote:
I want to open a new browser window and display the html file in local drive. ...Did you ever pause to consider how ridiculous that is?
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Edit 1:
..and please figure out how to use the CODE tags.
Edited by: AndrewThompson64 on Sep 12, 2008 11:14 PM

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Maintaining session across multiple browser windows and page refreshes

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