I have a .net 4.0 VB WPF application where websites, PDF files, pictures, and such are selected via buttons to be displayed. I am trying to set up a feature that rotates thru those web sites, PDF, files pictures, etc. staying on each one maybe 1 miniute or 5 minutes. While it is staying on a specific site a user might select a button which would then jump out of the wait and go to that site, picture or file. I do not know how to do this can someone give me a hint, or existing code or example?

Thank you