Hello, I really need your help.

If I opened two windows in Vbscript (web page). one of them open Google site and a second open on CNN site for example. How do can i jump with code in Vbscript from one windows web page(google) to hte second one (cnn)?
how can i write in code to focus on specific open windows?
In my work I wrote code to log on automatically to 30 sites, log on with user name and password / Login then click a few buttons and make logout. The problem is that when i click on loguot button a new popup window asking if you are sure - yes and no. Once I click yes the popup windows closes but then he did not know back to the active window that was open before. I need to know how to write code that saying to him go to the activate windows and then click etc...

thanks a lot!