Get continuous live Option Prices from yahoo finance

Download current and future option prices from yahoo finance. This code goes to
yahoo finance page and get quotes for a given stocks and strike prices. No toolboxes is needed just an access to the internet.
It downloads the quotes every given minutes for a period of given time.
The output is an Excel file with a list of dates,times, put and call options with maturity of Jan 2015 and Jan 2016.
I developed the code to keep record of some option prices as historical prices are not available for downloading.
Basically run the function on Monday and get your continuous option prices at the end of the week.