getting a URL via Javascript

[foid025]

Hey all, two questions.

For an app that I am developing, I have a frame page that looks like this:

----------------------------------------------------------
|                                                        |
|                     top                                |
----------------------------------------------------------
|                                                        |
|                                                        |
|                      content                             |
|                                                        |
|                                                        |
|                                                        |
----------------------------------------------------------

So with two frames named top and content. I have a simple form in the top frame and when it is submitted, it needs to get the URL of the content frame. How can I do that, I supposed with Javascript? I'm thinking something along the lines of
variable = top.content.URL?

Second, how can I make a frame stick even when the user browses to other pages (not my own site). So for instance, the user accesses the frameset on my site, and then makes his way to Google or phpBuilder but I want those to remain within the "content" frame. Any idea how to do this? Or is it possible?

Thanks for any help on either question!

[JPnyc]

2 ways I can think of, document.referrer on the receiving end, and you can also use

someVar = document.location.href;

then pass it in your form function