I am making a 'log in window ' in Photon Application Builder.I want that Log in window must close automatically on 
successful log in.But when i try to close the window using 'PtUnrealizeWidget' the main log in window close along with 
all  the windows attach to it. I want to close the log in window only but not the attached windows .Please suggest me 
some solution along with the functions to use.
Thanks.