Airport travel and Tokyo to Osaka

Hi

I am planning a trip and trying to figure out the best way to travel around Japan

My itinerary at the minute is to land at Haneda Airport and then travel into Tokyo and spend about 3 days in Tokyo.
I will then travel down to Osaka and then spend the remainder of the trip in Osaka before flying from Kansai Airport.

After reading some of the previous questions asked, I am now a little confused as to which ticket I would require.
Will a 7 day JR Pass allow me to travel to and from both Haneda Airport and Kansai Airport? And is this pass valid on the Tokyo to Osaka route?
I maybe travel to Kyoto, so again does this pass include this route?

Thanks