Edit so YouTube API works on Firefox

-Apparently different browsers handle scripts differently...and while
the YouTube API embed players were working on Chrome, they were not
working on Firefox. For the Alone player I moved the YouTube API
functions outside of the function that gathers information about the
Alone player (like start time, end time, video id). I also bound these
variables to the window so that they would be available within
startVideoAlone().

-I suspect I am doing something wrong or inelegant by needing all these
window.[variable] = [variable] commands.