Printing a text variable from flash

Well, I've been having quite a problem with this for a long time now, so im asking for help at last. I've researched a lot and have gotten nowhere....

Short and sweet, I need to print some text from a flash file. This is the way I panned on doing it.

In the flash file, there is a button. When this button is clicked, a new browser tab/window will pop up, displaying my desired text variable.

I don't want to use php. I was thinking ExternalInterface, and make a java script function that will collect my flash variable (string, rather large), and display that text in a new browser window/tab

problems...
1) I want (but don't have) to use a seperate .js file
2) I have know idea how to write a .js file that will do anything by myself
3) I've never before used ExternalInterface

I will need a very detailed procedure, links to other discussions is not going to cut it. Mainly need help with the .js file, how to make it not only gather my text variable from flash, but how to then display that text in a new window/tab that can be printed/saved

PLEASE PLEASE PLEASE help, i dont ask for it often,

Zoranan