Play/Pause button loses focus

Problem/Motivation

When using keyboard navigation to play/pause the jplayer the user loses focus. This results in the user needing to tab again to gain focus to pause the player or shift+tab to gain focus to play again.

Proposed resolution

This is due to play/pause buttons being separate <a> tags and jplayer just hiding/showing one or the other.To resolve I added a focus() toggle when the play and pause events are triggered.