How can I read elements of one browser window from another one

Hello all

I’m trying to make my job a bit easier by reading information from a website I use for troubleshooting to a compacted form of the same site

Here is the picture…

I have IE window A which contains data that comes from a server but most of the data I really don’t use and I wanted to make some sort of program/html or any other web-base script that can read session of the window A an display it on my costume made window

can this be done?.. if so how can I go about it?.. the window A browser is on IE6

if any extension or scripting I can use … any advise please

thank you