more details to clarify my question,
My H1B status is good thorugh the end of September. I plan to make a trip in July. Last time I entered US in 2001 with a single entry H1B visa (which had a 3 month validity period). So now I don't have a valid H1 visa on my passport, but I have a legal H1B STATUS.
Last week, I consulted the director of the International Student and Scholar Office of the university for which I am working with. The director recommended me to apply for an Advanced Parole for the travel. IN ADDITION, the officer recommended me to apply for an EAD. According to this officer, applying for an Advaced Parole means giving up H1B status and an EAD is necesssary for reentry.
Any body has similar experience please comment.