H Visa Switch from L1B to H1B with the same company

[snoop2505]

Hi,

I am new on this forum and have a quick question. I am currently under a L1B visa and my company just renew it for 2 more years (until 2010). Would it be possible for them to extend my period after 2010 by switching my current L1B to a H1B visa?
If so how long I will be able to stay in the US ?(I will already done 5 years after my L1B expiration date)

Thanks a lot