HELP...session

Hi there I need help about session see i have a page (index.php) that used this session_start(); session_register(username); and i got input username after the submit button is click i move into a frame pages...... then in the frame i define again session_start(); for each frame...i got two frame...... i intended to parse the username into my frame...but got nothing i intended to parse the username all over the pages (in frame) until he/she log out can anyone help me with it Thanks in Advance Yamin Prabudy