Web browsers "client" area?

[Lmhelp]

Hi,
Thank you for reading my post.

+------------------------+
| TITLE BAR              |
+------------------------+
| MENU BAR               |
+------------------------+
| VARIOUS TOOLBARS, etc. |
+------------------------+
|                        |
|                        |
|                        |
|                        |
|         "ZONE"         |
|                        |
|                        |
|                        |
|                        |
+------------------------+
| STATUS BAR             |
+------------------------+

- Suppose the schema above represents a Web browser window.
- At the top of this window, we may find a TITLE BAR, a MENU BAR,
several TOOLBARS (for instance a "Google toolbar"), etc.
- At the bottom of this window, we may find a STATUS BAR, etc.
- And, in between those two, we have a "ZONE" in which our HTML
pages are displayed.

1) My first question is the following:
how is this "ZONE" named in "reality"?

2) Here is my second question:
given this Web browser window displayed on my computer screen,
is it possible to get the width and height of "ZONE"
- in "JavaScript"
- and so that it works in (quasi) all browsers?

3) And finally, more generally speaking:
how and where can I get more information about Web browser windows?

Thank you and all the best,
--
Lmhelp

[Suzie999]

1) That area is called the Browser control. The client area begins below the menubar.
2) I know little about javascript, but you can get its reletive coordinates from other languages such as C++, and C#.
3) Not sure, I just see them as GUIs and look on msdn (I only work with windows platform)