Opening the Related Info Pane at the Start of Playback

The openatstart.smil presentation opened this HTML page automatically. That SMIL file uses the rn:contextWindow="openAtStart" attribute in its <root-layout/> tag to align the media playback pane flush left when the media browser pane is attached, leaving room for the related info pane, which appears a few seconds after the video begins to play. (The attribute has no discernible effect if the media browser pane is closed.)

If the SMIL file does not include rn:contextWindow="openAtStart", the media playback pane appears centered above the media browser pane, then moves to the left when the related info page displays, as shown in the sample closedatstart.smil.