H4 Visa expiration date is 30 sept 1015 so can i apply for h1b visa?

My h4 visa expiration date is 30 sept 2015 and I m applying for h1b visa. But now i am applying for h1b so my questions

  1. will i get h1b ?( with h4 visa expiration date is 30 sept 2015) will i get any issues?

  2. if my h4 extension comes after h1b approved den will i be able to work?