H1 extesion with a different employer

[venad]

Hi,
I am holding H1 since 2004 and my H1 is going to expire within couple of months (I have already done a renewal around 3 years back.) My I-140 is approved and I think my H1 can be extended based on that.

1. My question is, can a different employer apply for my H1 extension based on the I-140 filed by my current employer?

2. If possible is there any documents (that related to I-140) that my future employer needs to get from my current employer / lawyer for the H1 processing?

Any input greatly appreciated.
Thank you for your time.

--Venad

[txh1b]

1. Yes
2. Proof of I140 approval and that your PD is not current.