Sharing data between two views


I have tree structure like
-Tree base
-Customer info
- Password info
I have two different views for Customer info and password info.
But i want to access the data from customer info to password info how i can do it?

I am loading two different views on click on tree node.
e.g if i click on customer info (view) is loaded and if i clieck on password info ( view is loaded

but in this case how can i access data loaded in customer info view?

best regards
Arvind Porlekar