Transfer of H1B but not in my area of my education ????

[H1BLady]

My first H1b is up in september 2012, i am currently employed as a social worker, my problem is that i wish to get my second H1B visa in the construction industry, is this possible ???

i have being offered a job and sponsership from a construction company, can i which over to a company in a different field ??

thank you for all your advise.