L1B Extension and H1B at the same time

[kkm_iitb]

Hi,

Currently I am in US L1B with Company A. My L1B visa expired this month but my I-94 is still valid till Nov 2012. My company already filed an L1 extension and I already received an RFE on this.

Now I got another employer who is interested to file my H1B. I wanted to know the following:

1. Is it possible to file both L1 extension and H1B at the same time.
2. If answer to question 1 is Yes, then is there any way my current employer will come to know that I filed an H1B petition with another employer.

Thanks a lot in advance.

Regards
KK