Pseudocode for pre-roll on playlist

gistfile1.js

wistiaPlaylist = Wistia.playlist("playlisthashedid", {
  ... the options generated by Wistia ...
});
var savedSection, savedVideo;
wistiaPlaylist.bind("play", function() {
  savedSection = wistiaPlaylist.currentSectionIndex();
  savedVideo = wistiaPlaylist.currentVideoIndex();
  wistiaPlaylist.remove();
  wistiaEmbed = Wistia.embed("prerollhashedid", {
    ... whatever options you want ...
    container: "whatever_the_playlist_container_is"
  });
  wistiaEmbed.bind("end", function() {
    wistiaEmbed.remove();
    wistiaPlaylist = Wistia.playlist("playlisthashedid", {
      ... whatever the options were for the original playlist ...
      startSection: savedSection,
      startVideo: savedVideo
    });
  });
  return this.unbind;
});